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Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted January 1, 2025

By Sig Silber January 1, 2025weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Tue Dec 31 2024
Valid 12Z Wed Jan 01 2025 – 12Z Fri Jan 03 2025

…Coastal storm to bring rain and snow showers to the Northeast New
Year’s Day…

…Warming trend for the western U.S. while the northern/eastern U.S.
experiences colder temperatures through the end of the work week…

…Long duration lake effect snow event expected to begin unfolding
tomorrow downwind of the Great Lakes…

An area of low pressure will move across the interior Northeast/Quebec
while a secondary low pressure system develops along the New England Coast
today. Colder temperatures will filter into the eastern U.S. behind a
trailing cold front which will allow for a changeover to snow for interior
portions of the Northeast on New Year’s Day as the surface low deepens and
slowly tracks northward into eastern Quebec. This storm will mark the
beginning of a pattern change for the lower 48 where colder air will sink
southward from central Canada into the northern Plains, eventually
sweeping eastward. From the northern to eastern U.S., temperatures will
fall each day with values approaching average for New England on Thursday
while below average temperatures stretch from northern Montana to the
Mid-Atlantic and Southeast coasts. The colder air flowing across the still
relative warmth of the Great Lakes will set up a favorable pattern for
lake effect snow showers, starting today, which should persist through the
end of the week. Snowfall accumulations are expected to be greatest for
locations east of Lake Ontario and Erie through Thursday evening with 6 to
12+ inches in the forecast, but additional snow is likely into the weekend
as well.

Across the West Coast, a series of Pacific fronts will track into northern
California, Oregon and Washington over the next couple of days and weaken
as they move inland. These systems will bring light, moderate and
occasionally heavy rain to the coast of northern California and Oregon
where 2 to 4 inches of rain is expected through Thursday evening. Lighter
rainfall is expected farther north into western Washington while
accumulating snow falls into the Northern/Central Rockies, with the
highest snowfall accumulations expected for there through Thursday (6-18
inches, depending on elevation).

In addition, an increase in fire weather concerns for parts of the
Transverse Ranges of southern California will exist today, with an
Elevated Risk for of the spreading of wildfires lingering in southern
California for New Year’s Day. Gusty winds and low relative humidities
will contribute to the risk. Regarding temperatures, many locations west
of the Rockies will experience a warming trend over the next few days as
an upper ridge begins to build across the Southwest.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 31, 2024

By Sig Silber December 31, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Tue Dec 31 2024
Valid 12Z Tue Dec 31 2024 – 12Z Thu Jan 02 2025

…Cooling trend spreads from West to East this week….

…Fire Weather concerns for portions of southern California and Texas
through mid-week…

Systems moving by the northern Intermountain West bring the promise of
snowy periods in and near western Montana, Idaho, and Wyoming through
Wednesday. The first of those systems moves out into the Midwest, Ohio
Valley, and Northeast, bringing rain and thunderstorms near and to the
cyclone’s east, with thunderstorms most likely across portions of the
Eastern Shore and New Jersey on the afternoon and early evening of New
Year’s Eve. As the cyclone moves through the Northeast on Wednesday, both
Lake Effect and Lake Enhanced snows will spread through the Great Lakes
and into the northern and central Appalachians. Between 6-12 inches of
snow are forecast to accumulate downwind of the Lower Great Lakes by
Thursday morning. Some mixed precipitation is expected across central New
England.

A system arriving from the Great Plains will promote snow showers for the
broader Great Lakes region on Tuesday. A cooling trend started in the
West expands east through the rest of the country over the next couple of
days. Building high pressure across the Great Basin is expected to
increase winds across southern California over the next couple of days,
promoting an increased fire weather risk which could become critical
through mid-week. Wind advisories, a red flag warning, and a fire weather
watch have all been posted for the area as well for parts of south-central
Texas through Tuesday.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 30, 2024

By Sig Silber December 30, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Mon Dec 30 2024
Valid 12Z Mon Dec 30 2024 – 12Z Wed Jan 01 2025

…Snow showers likely across parts of the Northern Rockies and
Northern/Central Plains today…

…Much above average temperatures continue for the Central and Eastern
U.S today; cooling trend spreads from West to East this week….

…Critical Fire Weather expected for portions of the Southern High Plains
today...

A surface low pressure system ejecting out of the Rockies into the Plains
will likely produce a swath of snow and strong winds from northern Idaho
down through western Iowa today. Moderate impacts mainly due to blowing
snow are expected across much of Wyoming, the Colorado Rockies, South
Dakota and northwestern Nebraska. Snow over the Northern Rockies could
accumulate between 6-12 inches with isolated higher amounts possible. Snow
and wind should subside across the Northwest tonight as the low pressure
system tracks into the Ohio Valley.

Downstream, another, deeper mid-latitude cyclone will spread showers and
scattered thunderstorms into the Northeast with some light snow showers
possible downwind of the Lower Great Lakes today. The arrival of the
Plains system will promote even more snow showers for the broader Great
Lakes region on Tuesday.

Much above average temperatures are expected to continue across the
Central and Eastern U.S. today ahead of their respective low pressure
systems. Temperatures over south Texas will be especially anomalous with
highs likely between 20-30 degrees above average. Numerous high
temperature records may be tied or broken as a result. Unusually mild
conditions in the Northeast may also tie or break high temperature records
today. A cooling trend ensues across the West today before expanding east
through the rest of the country over the next couple of days. A Critical
Fire Weather area was issued by the Storm Prediction Center for much of
the Southern High Plains for today due to the especially warm temperatures
paired with dry and gusty westerly downslope flow beneath the storm to the
north.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 29, 2024

By Sig Silber December 29, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Sun Dec 29 2024
Valid 12Z Sun Dec 29 2024 – 12Z Tue Dec 31 2024

…Atmospheric river to produce heavy rain/snow across much of the
Northwest today…

…Severe Thunderstorms and Excessive Rainfall concerns shift into parts
of the Central/Southern Appalachians and Mid-Atlantic/Southeast today…

…Much above average temperatures continue across the Central and Eastern
U.S.; cooler air moves into the Northwest on Monday…

…Critical Fire Weather expected for portions of the Southern High Plains
on Monday…

An active weather pattern will continue in the northwestern and
southeastern quadrants of the country today. Heavy rain associated with an
atmospheric river event will produce 1-2 inches over coastal areas of
Oregon and northern California, including upslope areas of the northern
Sierra Nevada. Slight Risks of Excessive Rainfall (at least 15%) leading
to Flash Flooding are in effect for portions of southwest Oregon/northwest
California and the northern Sierra today. This wet pattern in the West
could produce rock, mud and land slides over vulnerable soils. Additional
heavy snow is likely over much of the Cascades, Northern/Central Rockies
and Sierra Nevada. Between 1-2 feet of snow (isolated higher) are expected
for parts of the Cascades and Rockies.

Storms associated with a severe weather outbreak that occurred across the
Southern Plains and Lower Mississippi Valley yesterday will spread into
the southeastern U.S. today. Heavy rain and scattered to severe
thunderstorms, capable of producing tornadoes, damaging wind gusts and
hail are possible from the eastern Gulf Coast northward into the
Carolinas, where a Slight Risk of Severe Thunderstorms (level 2/5) is in
effect. Rain showers will also spread into the Northeast today as well,
while some light wintry precipitation develops over parts of the Lower
Peninsula of Michigan tonight.

Meanwhile, ongoing moderate to heavy rainfall along a narrow axis of low
level convergence may persist into this afternoon over south Florida.
There’s potential for this Marginal Risk (at least 5%) of Excessive
Rainfall to over perform given current conditions.

Much above average temperatures from the Central to Eastern thirds of the
country should persist until Tuesday, while an increasingly trough-y
pattern in the West will promote cooling temperatures beginning on Monday.
Widespread high minimum temperatures may be tied or broken across the
Northeast tonight ahead of a deepening upstream trough and southerly flow
along a strong surface warm front. Dry, windy and mild conditions in the
Southern High Plains will support a Critical Risk of Fire Weather on
Monday.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 28, 2024

By Sig Silber December 28, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Sat Dec 28 2024
Valid 12Z Sat Dec 28 2024 – 12Z Mon Dec 30 2024

…Atmospheric river to produce heavy rain/snow across much of the
Northwest…

…Severe Thunderstorm outbreak and Excessive Rainfall potential from the
Southern Plains to Southeast today…

…Mild and much above average temperatures will persist across most of
the country…

The revolving door of mid-latitude cyclones propagating through the
Pacific Northwest is likely to continue through the rest of the weekend. A
deep low pressure system carrying anomalous moisture will generate heavy
to potentially excessive rainfall over parts of the Pacific Northwest
Coast. Parts of northern California and southern Oregon are of particular
concern for flash flooding as most of the heavy rainfall is likely to
focus over those areas through tonight. Things begin to dry up across the
Northwest Coast on Sunday. Meanwhile, heavy snow is also likely over parts
of the Cascades and Northern/Central Rockies, where anywhere between 1-3
feet of snow may accumulate by Monday morning, when snow intensity will
begin to weaken considerably.

Another area of concern is the Lower Mississippi Valley and Southeast,
where a developing low pressure system is likely to generate a severe
thunderstorm outbreak today, as well as heavy rainfall through the rest of
the weekend. Today, according to the Storm Prediction Center, an outbreak
of severe storms with tornadoes, wind damage, and large hail is expected
from parts of the Southern Plains, into the Lower Mississippi Valley and
central Gulf Coast states. Several long track tornadoes are expected.
Thus, a Moderate Risk (level 4/5) of Severe Thunderstorms was hoisted.
Additionally, a Slight Risk (at least 15%) of Excessive Rainfall is in
effect for a similar area to the SPC Slight, but extending farther into
the Tennessee Valley. Heavy rainfall and scattered to severe thunderstorms
shift into the East Coast on Sunday.

Temperatures will remain well above average for much of the Lower 48 this
weekend. Widespread high minimum temperatures may be tied or broken across
much of the Ohio Valley and interior Northeast tonight followed by the
Mid-Atlantic/Northeast Coast Sunday night. Troughing and cooler conditions
are projected to return to the West early next week.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 27, 2024

By Sig Silber December 27, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Fri Dec 27 2024
Valid 12Z Fri Dec 27 2024 – 12Z Sun Dec 29 2024

…Stormy weather pattern to continue across the Northwestern U.S. into
this weekend with heavy lower elevation rain and higher elevation heavy
snow…

…Increasingly wet pattern developing from the Lower Mississippi Valley,
spreading northeast into the Tennessee Valley, Appalachians, Mid-Atlantic
and Northeast…

…Arctic air remains absent from the Lower 48 with much above average
temperatures across nearly all of the country…

The recent stormy weather pattern across the northwestern U.S. will
continue over the next few days while a sequence of storm systems move
onshore from the Pacific. The widespread precipitation that has occurred
across the Northern Rockies and Pacific Northwest over the past 24 hours
will be followed by another heavy precipitation producer across Northern
California into the Pacific Northwest and then inland across the Northern
Rockies today. This will be followed by another heavy precipitation
producer moving inland tonight across the Pacific Northwest and into the
Northern Rockies during Saturday. Yet another Pacific storm will spread
another round of heavy precipitation into the Northwestern U.S. Sunday
into Monday. By the end of the weekend, rainfall totals of 3-5″+ likely
through the Washington and Oregon Cascades, northwest California coastal
mountains into the northern Sierra, while snowfall totals of 1 to 3 feet
are likely in the highest elevations of the Northwest. The recent wet
weather pattern across the Northwest and likelihood of additional
widespread heavy precipitation amounts into this weekend will result in
increasing stream flows and soil saturation levels, leading to an
increasing threat of river flooding, rock and mudslides.

Wet weather will also be increasing over the next few days from Lower
Mississippi Valley, northeastward into the Tennessee Valley, Southern
Appalachians and Mid-Atlantic. Precipitation will spread northward into
the Upper Mississippi Valley today and eastward into the Southern
Appalachians on Saturday then the Mid-Atlantic and Northeast Saturday
night into Sunday. While drought conditions have improved over the past
few weeks across portions of the South and East, many areas still remain
below average with precipitation, with the upcoming rain much welcomed
hydrologically.

While it will be stormy over the next few days across large portions of
the Lower 48, arctic air will remain absent as the overall flow across the
nation is from west to east, keeping arctic air well north of the
U.S./Canadian border. Much of the Lower 48 will see much above average
temperatures over the next few days. This will be a continuation to the
above average pattern for areas to the west of the Mississippi River, but
a reversal of the overall below average pattern that has dominated areas
east of the Mississippi during December. This much above average pattern
will support the potential for record high morning low temperatures across
the Central Plains into the Mid to Upper Mississippi Valley on today,
across the Upper Mississippi Valley and Great Lakes region on Saturday,
and the Mid-Atlantic and Northeast on Sunday.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 26, 2024

By Sig Silber December 26, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Thu Dec 26 2024
Valid 12Z Thu Dec 26 2024 – 12Z Sat Dec 28 2024

…Continued rounds of heavy rain and mountain snow for the Pacific
Northwest…

…Heavy rain and strong thunderstorms return for eastern Texas into
Louisiana on Thursday…

…Relatively mild conditions across the majority of the country through
Friday…

The very active storm track across the eastern Pacific and into the
Pacific Northwest will continue to make weather headlines through the end
of the week. The next in a series of atmospheric river events is now
ongoing across the Pacific Northwest, with moderate to heavy rainfall and
a few thunderstorms continuing into Thursday morning. This round will
likely result in widespread 1 to 3 inch rainfall totals, and there may be
some instances of flooding where rainfall rates are highest. Once this
first system moves inland, there will be a short-lived break Thursday
afternoon before the next round arrives Thursday night for many of the
same areas, bringing an additional 1-2 inches of rain by Friday morning.
Strong and potentially damaging winds are also expected near the coast and
the coastal waters given a strong low level jet with these storm systems.
The Cascades and the Olympic Mountains will get hammered with heavy snow
on the order of 1-3 feet, where winter storm warnings are in effect, and
lighter snows heading south into northern California with winter weather
advisories. The higher terrain of the northern Intermountain West and the
Northern Rockies will also get noteworthy snowfall as moisture from this
storm system moves inland.

Unsettled weather conditions are also expected for portions of the
south-central U.S. going into Thursday, with an amplifying upper trough
developing a new surface low and moisture plume from the western Gulf,
heralding the development of scattered to widespread showers and
thunderstorms. Both wind shear and instability parameters appear to
become increasingly favorable for some severe weather on Thursday, and
therefore the Storm Prediction Center has portions of the ArkLaTex region
in a Slight Risk for severe storms. Heavy rainfall could also be an issue
where these storms train over the same areas, and there is a Slight Risk
of flash flooding from eastern Texas to central Arkansas. An axis of
heavy rain is likely across portions of the Mid-South going into Friday as
the storm system slowly moves eastward.

Elsewhere across the country, mainly dry conditions are forecast across
the Desert Southwest, Northern Plains, and the Northeast U.S. to close out
the week. Foggy conditions are once again likely across portions of the
Midwest and the Central Plains Thursday and Fridays mornings with
warm/moist air advection over cold ground. In terms of temperatures,
forecast highs Thursday and Friday generally range from the 30s and 40s
for the northern Rockies/Plains eastward to the Great Lakes and New
England/Mid-Atlantic; the 40s and 50s for the Pacific Northwest and
northern California eastward across much of the Intermountain West,
central Rockies/Plains, and extending eastward to the Ohio Valley; the 50s
and 60s for the Mid-South and the Southeast U.S. states; and the middle
60s to near 80 degrees for southern California, the Desert Southwest, much
of Texas, and Florida.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 25, 2024

By Sig Silber December 25, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Wed Dec 25 2024
Valid 12Z Wed Dec 25 2024 – 12Z Fri Dec 27 2024

…Continued rounds of heavy rain and mountain snow for the Pacific
Northwest…

…Heavy rain and strong thunderstorms return for eastern Texas into
Louisiana on Thursday…

…Relatively mild conditions across the majority of the country through
Thursday…

The very active storm track across the eastern Pacific and into the
Pacific Northwest will continue to make weather headlines through
Thursday. After a brief break in the action, steady rainfall reaches the
Washington and Oregon coasts by midday Christmas, and then reaches
northern California by evening. Periods of heavy rainfall are likely
Wednesday night as the atmospheric river intersects the coastal terrain,
with perhaps a few thunderstorms. This round will likely result in
widespread 1 to 2 inch rainfall totals, and potentially more on the west
facing slopes, and there may be some instances of flooding where rainfall
rates are highest. Once this first system moves inland, there will be a
short-lived break Thursday afternoon before the next round arrives
Thursday night for many of the same areas, bringing an additional 1-2
inches of rain by Friday morning. Strong winds are also expected near the
coast and the coastal waters given a strong low level jet with these storm
systems. Snow levels are likely to be lower with the second round, with
the Cascades getting hammered with heavy snow on the order of 1-3 feet,
and lighter snows heading south into northern California. The higher
terrain of the northern Intermountain West and the Northern Rockies will
also get noteworthy snowfall, particularly across eastern Oregon and into
Idaho.

Unsettled weather conditions are also expected for portions of the
south-central U.S. with a loitering surface low over Texas and a
meandering stationary front over eastern Texas and into Louisiana. There
will likely be a decrease in the shower and thunderstorm coverage on
Christmas Day, but an amplifying upper trough will develop a new surface
low and moisture plume from the western Gulf, heralding the development of
scattered to widespread showers and thunderstorms. Both wind shear and
instability parameters appear to become increasingly favorable for some
severe weather on Thursday, and therefore the Storm Prediction Center has
portions of the ArkLaTex region in a Slight Risk for severe storms. Heavy
rainfall could also be an issue where these storms train over the same
areas, and there is a Slight Risk of flash flooding from eastern Texas to
central Arkansas.

Elsewhere across the country, mainly dry conditions are forecast across
the Desert Southwest, Northern Plains, and most of the East Coast states
with the exception of some showers near the Florida East Coast. Foggy
conditions are likely across portions of the Midwest and the Central
Plains both Christmas morning and Thursday morning with warm air advection
over cold ground. In terms of temperatures, forecast highs on Christmas
Day and Thursday generally range from the 30s and 40s for the northern
Rockies/Plains eastward to the Great Lakes and New England/Mid-Atlantic;
the 40s and 50s for the Pacific Northwest and northern California eastward
across much of the Intermountain West, central Rockies/Plains, and
extending eastward to the Ohio Valley; the 50s and 60s for the Mid-South
and the Southeast U.S. states; and the 60s and 70s for southern
California, the Desert Southwest, Texas, and Florida.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 24, 2024

By Sig Silber December 24, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Tue Dec 24 2024
Valid 12Z Tue Dec 24 2024 – 12Z Thu Dec 26 2024

…Heavy rain and mountain snow returns to the West Coast region Wednesday
night…

…Showers and thunderstorms developing over portions of the south-central
states…

…Relatively mild conditions across the majority of the country leading
up to Christmas…

An active weather pattern is expected to continue across the West Coast
region as an energetic storm track across the eastern Pacific brings in
multiple rounds of precipitation. The next in a series of atmospheric
river events is arriving across northern California and western Oregon
late tonight and continuing into Tuesday afternoon. Although the storm
system will be progressive overall, there will be a deep surge of moisture
ahead of the cold front that will intersect the coastal terrain and the
western slopes of the northern Sierra Nevada. Rainfall totals on the
order of 2-4 inches, and locally higher, are likely across this region
through Tuesday evening. Snow levels will be initially high, but should
fall some once the front passes. The heaviest snow from this event should
affect the highest terrain of the central Sierra Nevada, with up to a foot
of accumulation possible, affecting travel through the mountain passes.
Winter weather advisories and winter storm warnings are currently in
effect for this event. After a brief break on Christmas Day, the next
round of moisture moves in towards the West Coast and brings another
substantial round of rain and mountain snow, along with windy conditions
as the pressure gradient tightens in response to a very intense surface
low off the coast of British Columbia.

A relatively weak low pressure system crossing the Northeast U.S. region
on Tuesday will produce light to occasionally moderate snow from the
central Appalachians to New England, increasing the odds of a White
Christmas across this region, especially when combined with existing snow
cover from recent snowfall. This system quickly exits offshore by Tuesday
evening. Farther to the south across Texas, a separate surface low
develops, and increasing southerly flow from the western Gulf of Mexico
ahead of that system will fuel the development of scattered to numerous
showers and some thunderstorms, mainly from eastern Texas northward across
much of Arkansas and into southern Missouri through Christmas morning.
Some locations may get over an inch of rainfall with this event, and thus
a Marginal Risk of excessive rainfall is valid for these areas.

Much of the East Coast region will have a moderation trend in the cold
temperatures going into Christmas Eve, as the arctic surface high moves
offshore and milder air from the Ohio Valley advects eastward across the
region. The remainder of the country should enjoy generally above average
temperatures by late December standards, particularly across the central
and southern Plains where daytime highs could be 15-20 degrees above
average. This would equate to highs well into the 60s and 70s for much of
Texas.

To get your local forecast plus active alerts and warnings click HERE and enter your city, state or zip code.

Learn about wave patterns HERE.

Then, looking at the world and of course, the U.S. shows here also. Today we are looking at precipitation.

Please click on “Read More” below to access the full Daily Report issued today.

Weather Outlook for the U.S. for Today Through at Least 22 Days and a Six-Day Forecast for the World: posted December 23, 2024

By Sig Silber December 23, 2024weatherNo Comments

This article focuses on what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term U.S. outlooks (up to four weeks) and a six-day World weather outlook which can be very useful for travelers.

First the NWS Short Range Forecast. The afternoon NWS text update can be found here after about 4 p.m. New York time but it is unlikely to have changed very much from the morning update. The images in this article automatically update.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
Mon Dec 23 2024
Valid 12Z Mon Dec 23 2024 – 12Z Wed Dec 25 2024

…Heavy rain and mountain snow returns to the West Coast region Monday
night…

…Showers and thunderstorms developing over portions of the south-central
states…

…Relatively mild conditions across the majority of the country leading
up to Christmas…

An active weather pattern is expected to continue across the West Coast
region as an energetic storm track across the eastern Pacific brings in
multiple rounds of precipitation. After a brief respite Monday, the next
atmospheric river event arrives across northern California and western
Oregon late Monday night and into Tuesday. Although the storm system will
be progressive overall, there will be a deep surge of moisture ahead of
the cold front that will intersect the coastal terrain and the western
slopes of the northern Sierra Nevada. Rainfall totals on the order of 2-4
inches, and locally higher, are likely across this region through Tuesday
evening. Snow levels will be initially high, but should fall some once
the front passes. The heaviest snow from this event should affect the
highest terrain of the central and northern Sierra Nevada, with up to a
foot of accumulation possible.

A low pressure system crossing the Great Lakes region on Monday will
produce a corridor of mixed wintry precipitation from southern Minnesota
to southern Lower Michigan, and mainly light to moderate snow to the north
across northern Wisconsin and into northern Michigan. Winter weather
advisories are currently in effect for those areas. This low reaches the
Northeast U.S. Christmas Eve, with light snow mainly for interior
portions. Farther to the south across Texas, a separate surface low
develops, and increasing southerly flow from the western Gulf of Mexico
ahead of that system will fuel the development of scattered to numerous
showers and some thunderstorms from eastern Texas northward across much of
Arkansas and into southern Missouri through Tuesday.

Much of the East Coast region will have a very cold start to the holiday
week on Monday, with an arctic surface high slowly moving east across the
region. The coldest morning of the season thus far is expected for most
of the Mid-Atlantic and Northeast states, followed by another chilly day
on Monday, albeit slightly milder compared to what was observed on Sunday.
A further moderation trend is expected going into Christmas Eve as the
surface high moves offshore and milder air from the Ohio Valley advects
eastward across the region. The remainder of the country should enjoy
generally above average temperatures by late December standards,
particularly across the central and southern Plains where daytime highs
could be 15-20 degrees above average. This would equate to highs well
into the 60s and 70s for much of Texas.