Posts by Sig Silber

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 06 2024
Valid 12Z Fri Dec 06 2024 – 12Z Sun Dec 08 2024

…More lake-effect/lake-enhanced snow downwind from Lakes Erie and
Ontario…

…Arctic air currently engulfing much of the eastern U.S. will gradually
moderate over the next couple of days…

…Dry and milder than average temperatures in the western U.S. will
spread into the northern and central U.S. through the next couple of
days…

Under an intense surge of arctic air, Friday morning will begin with the
coldest temperatures so far this season across much of the central and
eastern U.S. with blustery conditions and a piercing wind chill. The
persistent flow of arctic over the relatively warm waters of the Great
Lakes has continued to bring lake-effect snows downwind into the Snow
Belt. By later today into tonight, another clipper currently forming
along the arctic front will spread more snow across the Great Lakes from
northwest to southeast. By Saturday, still another clipper will bring
more widespread snowfall across the upper Great Lakes, reaching into the
lower lakes Saturday night. Milder air could change some of the snow to
rain Saturday afternoon near the western fringe of these areas. As much
as two additional feet of new snow is possible near the eastern shore of
Lake Ontario through the next couple of days. Lighter snowfall amounts
can be expected elsewhere along the Snow Belt.

After a morning with wind chills possibly falling below zero across the
mountains of the Applachains, conditions are expected to improve through
the next couple of days as southwesterly winds begin to bring milder air
from the western U.S. into the northern and central Plains. The most
drastic recovery will be found over the northern High Plains where high
temperatures could top 60 degrees by Saturday afternoon.

The retreating arctic high pressure system that brings the milder air into
the northern U.S. will also bring increasing moisture into Texas. It
appears that rain will expand in coverage across southern to eastern Texas
through Saturday ahead of an upper trough. Additional influx of moisture
from the Gulf of Mexico could begin to raise the threat of heavy rain from
eastern Texas into Louisiana by early on Sunday.

After a tranquil Friday, increasingly unsettled weather is expected for
the Pacific Northwest by the weekend. Rain showers and some high elevation
snow will return to Washington State and Oregon by Saturaday as the next
front moves through. The mountain snow and low-elevation rain will
progress farther inland, reaching into the northern Rockies by early
Sunday as a low pressure system begins to develop across the northern High
Plains into Alberta Province of Canada. Much of the remainder of the
western U.S. will remain dry and milder than normal as high pressure
dominates the region. High temperatures will be in the 80s across the
Southwest while 70s and 60s will prevail from southern California to the
Pacific Northwest.

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.

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 05 2024
Valid 12Z Thu Dec 05 2024 – 12Z Sat Dec 07 2024

…Heavy lake-enhanced/lake-effect snow downwind from Lakes Erie and
Ontario on Thursday and Friday; Moderate to heavy snow over parts of New
England on Thursday; light to moderate snow over parts of the Central
Appalachians on Thursday and Friday…

…Light to moderate lake-effect snow for the Upper Peninsula of Michigan
and the west coast of the Lower Peninsula on Thursday and Friday…

…Temperatures will be 10 to 20 degrees below average over parts of the
Ohio Valley and the Mid-Atlantic…

A storm over southeastern Canada will move eastward to far eastern Canada
by Friday morning. The system will produce heavy lake-enhanced then heavy
lake-effect snow downwind from Lakes Erie and Ontario on Thursday and
Friday. Additionally, in the wake of the storm, light to moderate
lake-effect snow will develop over parts of the Upper Peninsula of
Michigan and the west coast of the Lower Peninsula of Michigan on Thursday
and Friday. Further, moderate to heavy snow will be created on Thursday
over parts of New England. By Friday, scattered light snow will be over
New England and then the snow will end by Friday evening. Furthermore,
light to moderate snow will develop over parts of the Central Appalachians
on Thursday and Friday.

Moreover, the strong arctic cold front will sweep across the Mid-Atlantic
and the Northeast on Thursday. The boundary will create snow squalls
accompanied by intense bursts of heavy snowfall and gusty winds, producing
dangerous travel conditions due to whiteouts and icy roads.

In addition, wind gusts up to 50 mph will spread into the Central
Appalachians, Mid-Atlantic, and Northeast on Thursday. These winds may
cause power outages, down tree branches, and result in hazardous commutes.

Moreover, after the storm, high pressure over the Northern Plains will
move southeastward to the Tennessee Valley by Saturday. The high pressure
will usher in cold temperatures over parts of the Ohio Valley and the
Mid-Atlantic, bringing temperatures of 10 to 20 degrees below average.

Meanwhile, return flow off the Gulf of Mexico will create scattered
showers and thunderstorms over parts of the Central Gulf Coast on
Thursday. On Friday, scattered showers and thunderstorms will develop over
parts of the Southern High Plains.

Elsewhere, lingering stagnant air conditions will be over parts of the
Pacific Northwest, leading to areas of dense fog and poor air quality.
However, an approaching front over the Eastern Pacific will usher moisture
into the Pacific Northwest, creating light rain over parts of the
Northwest Coast late Friday night into Saturday.

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.

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 04 2024
Valid 12Z Wed Dec 04 2024 – 12Z Fri Dec 06 2024

…Heavy snow for the Upper Peninsula of Michigan and the northern Lower
Peninsula on Wednesday…

…Heavy lake-enhanced snow downwind from Lakes Erie and Ontario on
Wednesday and Thursday; Heavy snow over parts of Northern New England;
light to moderate snow over parts of the Central Appalachians on
Wednesday…

…Temperatures will be 10 to 15 degrees below average over parts of the
Mid-Atlantic and the Southeast…

On Wednesday, high pressure over the Southeast will move southeastward off
the Southeast Coast by Wednesday night. The high pressure will create cold
temperatures over parts of the Mid-Atlantic and the Southeast, bringing
temperatures of 10 to 15 degrees below average.

Meanwhile, low pressure just north of Lake Superior will move eastward to
Southeast Canada by Friday. The storm will produce heavy snow over the
Upper Peninsula of Michigan and the northern Lower Peninsula of Michigan
through Thursday morning. Moreover, heavy lake-enhanced snow will develop
downwind of Lakes Erie and Ontario through Friday. Additionally, heavy
snow will develop over New England through Friday too.

Furthermore, light snow will develop over parts of the Northern
Plains/Upper Mississippi Valley and the Ohio Valley from Wednesday through
Friday. Moderate to heavy snow will develop over parts of the Central
Appalachians through Friday. Rain will also develop over the coastal parts
of New England through Thursday afternoon and then change over to snow.

Moreover, weak return flow off the Gulf of Mexico will create scattered
showers and thunderstorms over parts of the West/Central Gulf Coast
through Wednesday and Thursday. Some of the rain will be moderate to heavy
over parts of the Western Gulf Coast. Therefore, the WPC has issued a
Marginal Risk (level 1/4) of excessive rainfall over parts of the Western
Gulf Coast through Thursday morning. The associated heavy rain will
create localized areas of flash flooding, affecting areas that experience
rapid runoff with heavy rain.

Rain will also expand along the Eastern Gulf Coast into the Southeast on
Thursday and into parts of the Southern High Plains Thursday night into
Friday.

Elsewhere, upper-level ridging will create stagnant air conditions over
parts of the Pacific Northwest, leading to areas of dense fog and poor air
quality. However, an approaching front over the Eastern Pacific will usher
moisture into the Pacific Northwest, creating light rain over parts of the
Northwest Coast late Wednesday night into Friday.

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.

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 03 2024
Valid 12Z Tue Dec 03 2024 – 12Z Thu Dec 05 2024

…Heavy snow for the Upper Peninsula of Michigan and the northern Lower
Peninsula on Tuesday and Wednesday…

…Lake-effect and lake-enhanced snow downwind from Lakes Erie and Ontario
on Tuesday and Wednesday; Moderate to heavy snow over parts of Northern
New England; light to moderate snow over parts of the Central Appalachians
on Wednesday…

…Temperatures will be 10 to 15 degrees below average over parts of the
Ohio Valley, the Mid-Atlantic, and the Southeast…

On Tuesday, high pressure over the Middle Mississippi Valley will slowly
move southeastward off the Southeast Coast by Wednesday night. The high
pressure will create cold temperatures over parts of the Ohio Valley, the
Mid-Atlantic, and the Southeast, bringing temperatures of 10 to 15 degrees
below average.

Meanwhile, low pressure over West-Central Canada will move southeastward
to Quebec, Canada, by Thursday. The storm will produce heavy snow over the
Upper Peninsula of Michigan and the northern Lower Peninsula of Michigan
through Thursday. Moreover, lake-effect snow will continue downwind from
Lakes Erie and Ontario on Tuesday. Them on Wednesday, moderate to heavy
lake-enhanced snow develops downwind of Lakes Erie and Ontario through
Thursday.

Furthermore, light snow will develop over parts of the Northern
Plains/Upper Mississippi Valley Tuesday through Thursday. Moreover, as the
front moves over the Ohio Valley into the Northeast/Mid-Atlantic, light to
moderate snow will develop over parts of the Ohio Valley and the Central
Appalachians on Wednesday into Thursday. Additionally, moderate to heavy
snow will develop over parts of Northern New England on Wednesday. Light
to moderate snow will develop over other parts of Southern New England and
the Northeast. Rain will also develop over the coastal parts of New
England.

Moreover, weak return flow off the Gulf of Mexico will create scattered
showers and thunderstorms over parts of the West/Central Gulf Coast
through Wednesday and rain over parts of the Lower Mississippi/Tennessee
Valleys and Southeast Wednesday into Thursday.

Elsewhere, upper-level ridging will create stagnant air conditions over
parts of the Pacific Northwest, leading to areas of dense fog and poor air
quality. However, an approaching front over the Eastern Pacific will usher
moisture into the Pacific Northwest, creating light rain over parts of the
Northwest Coast Wednesday night into Thursday. Furthermore, a High Wind
Watch will be in effect over parts of the Northern Rockies through late
Tuesday morning.

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.

In case  you  missed the December update we posted yesterday, this graphic summarizes it.

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

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 02 2024
Valid 12Z Mon Dec 02 2024 – 12Z Wed Dec 04 2024

…Heavy lake-effect snow continues downwind from Lake Erie through
Wednesday…

…Light snow over parts of the Middle Mississippi Valley, Southern Ohio
Valley, and Southern Appalachians on Monday; moderate to heavy snow over
parts of the Upper Peninsula of Michigan on Tuesday evening into
Wednesday…

…Temperatures will be 10 to 15 degrees below average over parts of the
Northern/Central Plains to the Ohio Valley and the Mid-Atlantic…

High pressure over Central Canada/Northern Plains will settle
southeastward to the Southeast by Wednesday. The high pressure will also
usher cold air over parts of the Northern/Central Plains to the Ohio
Valley and the Mid-Atlantic, bringing temperatures of 10 to 15 degrees
below average. Additionally, Freeze Warnings will be over parts of the
Southeast.

The upper-level troughing will continue over parts of the Lower Great
Lakes and Northeast through Tuesday afternoon. The continued cold air
streaming over the Great Lakes will produce light to moderate lake-effect
snow over the Upper Peninsula of Michigan and the west coast of the Lower
Peninsula of Michigan through Monday. Moreover, heavy lake-effect snow
will continue downwind from Lake Erie through Wednesday. Light to moderate
lake-effect snow will continue downwind of Lake Ontario into Wednesday.

Moreover, a wave of low pressure will create light snow over parts of the
Middle Mississippi Valley, Southern Ohio Valley, and Southern Appalachians
on Monday. On Tuesday evening, an approaching area of low pressure over
Central Canada will create moderate to heavy snow over parts of the Upper
Peninsula of Michigan into Wednesday.

Meanwhile, weak return flow off the Gulf of Mexico will create scattered
showers and thunderstorms over parts of the West Gulf Coast through
Wednesday. Elsewhere, upper-level ridging will create stagnant air
conditions over parts of the Pacific Northwest, leading to areas of dense
fog and poor air quality. Furthermore, there is a High Wind Watch over
parts of the Northern Rockies from Monday afternoon into Tuesday morning.

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.

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 Nov 29 2024
Valid 12Z Fri Nov 29 2024 – 12Z Sun Dec 01 2024

…Heavy lake-effect snow downwind from the Great Lakes through Sunday…

…Light snow over parts of the Central Appalachians on Friday and light
to moderate snow from the Middle Mississippi Valley to the Central
Appalachians on Saturday…

…Temperatures will be 15 to 25 degrees below average over parts of the
Northern Plains…

A slow-moving front across Florida will aid in creating showers and
thunderstorms over parts of the Central Gulf Coast to Florida on Friday.
After the boundary moves south of Florida, scattered light rain will
develop along the east coast of the Florida peninsula on Saturday. An area
of high pressure over Central Canada will usher cold air over parts of the
Northern Plains, bringing temperatures of 10 to 25 degrees below average.
The cold air has prompted Cold Weather Advisories over parts of North
Dakota on Friday morning.

In addition, upper-level troughing over the Great Lakes into the Northeast
and cold air streaming over the Great Lakes will produce heavy lake-effect
snow over the Upper Peninsula of Michigan through Sunday. Lighter snowfall
will develop over most of the west coast of the Lower Peninsula of
Michigan during the time period. However, heavy lake-effect snow will
develop over the parts of the northern Lower Peninsula of Michigan.
Moreover, heavy lake-effect snow will develop downwind of Lakes Erie and
Ontario through Sunday.

A quasi-stationary front extending from the Middle Mississippi Valley to
the Northern Rockies/Northern High Plains will be the focus for light snow
over parts of the Northern High Plains on Friday and over parts of the
Northern Plains on Saturday.

Furthermore, a wave of low pressure will develop on the boundary over
parts of the Central Plains and move eastward to the Central Appalachians
by Sunday. The system will produce light to moderate snow over parts of
the Middle Mississippi Valley eastward to the Central Appalachians on
Saturday into Sunday morning.

Meanwhile, weak return flow off the Gulf of Mexico will create light rain
over parts of the Western Gulf Coast on Saturday.

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.