Atmospheric Rivers

Updated at 6:38 p.m. Thursday, March 23, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
421 PM EDT Thu Mar 23 2023

Valid 00Z Fri Mar 24 2023 – 00Z Sun Mar 26 2023

…Strong to severe thunderstorms will be a significant concern this
evening and continuing through Friday night from the Southern Plains, the
Mid-South, and Lower Mississippi Valley to possibly the Ohio Valley…

…Widespread heavy rain and flash flooding setting up across the
Mid-Mississippi Valley and Ohio Valley this evening through Friday night…

…An intensifying low pressure system will likely bring very strong
winds, heavy rain/thunderstorms into the Ohio Valley as heavy snow could
develop across the Midwest into lower Michigan Saturday morning…

…Unsettled weather and chilly temperatures with locally heavy mountain
snowfall to continue across the West…

…Very warm temperatures will prevail through the end of the week across
much of the South through the Ohio Valley and into the Mid-Atlantic…

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 PM EDT Wed Mar 22 2023

Valid 00Z Thu Mar 23 2023 – 00Z Sat Mar 25 2023

…Strong to severe thunderstorms will become a significant concern
beginning Thursday afternoon and continuing through Friday for portions of
the Southern Plains, Lower Mississippi Valley and the Mid-South…

…Widespread heavy rain and flash flooding will become increasingly
likely by Friday across portions of the Lower Mississippi Valley and Ohio
Valley from numerous rounds of showers and thunderstorms…

…Very warm temperatures will persist through the end of the week across
much of the South and the East…

…Unsettled weather and chilly temperatures with locally heavy mountain
snowfall to continue across the West…

Updated at  4:02  p.m. EDT Tuesday, March 21, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
353 PM EDT Tue Mar 21 2023

Valid 00Z Wed Mar 22 2023 – 00Z Fri Mar 24 2023

…Powerful storm system to spread high winds, heavy rain, and heavy
mountain snow into portions of California and the Southwest…

…Widespread rain and heavy mountain snow expected to move across the
Southwest, Great Basin, and the central and southern Rockies by early
Thursday…

…Heavy snowfall to impact portions of the Northern Plains and Upper
Mississippi Valley through midweek…

Updated at 5:05 p.m. EDT Monday, March 20, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
349 PM EDT Mon Mar 20 2023

Valid 00Z Tue Mar 21 2023 – 00Z Thu Mar 23 2023

…Powerful storm system to spread high winds, heavy rain, and heavy
mountain snow to parts of California and the Southwest on Tuesday…

…Threat of heavy snow continues across the Intermountain West and
Rockies over the next few days…

…A couple rounds of light-to-moderate snowfall are expected across
portions of the northern Plains and Upper Midwest between Tuesday and
Thursday morning...

Updated at 4 p.m. EDT Sunday March 19, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
348 PM EDT Sun Mar 19 2023

Valid 00Z Mon Mar 20 2023 – 00Z Wed Mar 22 2023

…Record-breaking cold across the Southeast Monday morning to lead to
widespread and potentially harmful freezing temperatures…

…Strong storm system to impact southern California on Tuesday with high
winds, heavy rain, and heavy mountain snow…

…Heavy snow to impact parts of the Intermountain West and Rockies before
wintry weather spreads into the northern Plains and Upper Midwest on
Tuesday…

Updated at 4 p.m. EDT Saturday, March 18 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
345 PM EDT Sat Mar 18 2023

Valid 00Z Sun Mar 19 2023 – 00Z Tue Mar 21 2023

…Much below normal temperatures to engulf much of the East & South
through Monday; lingering lake effect snow showers tonight & Sunday…

…Next round of rain and heavy mountain snow, colder than normal
temperatures expected throughout the West into next week…

…Scattered showers and thunderstorms across Florida…

Updated at 3:40 p.m. EDT March 17, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
328 PM EDT Fri Mar 17 2023

Valid 00Z Sat Mar 18 2023 – 00Z Mon Mar 20 2023

…Heavy showers and thunderstorms will impact portions of the eastern
Gulf Coast and Southeast tonight into Saturday…

…Heavy lake-effect snow and snow squalls to impact areas of the Great
Lakes, Ohio Valley and Northeast this weekend…

…Below to much below normal temperatures expected across much of the
central and eastern U.S. this weekend…

Updated at 6:10 p.m. Thursday, March 16, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
349 PM EDT Thu Mar 16 2023

Valid 00Z Fri Mar 17 2023 – 00Z Sun Mar 19 2023

…Strong to severe thunderstorms and heavy rainfall can be expected
through tonight across portions of the Southern Plains and Lower
Mississippi Valley…

…Heavy snow is expected over portions of the Upper Midwest and into the
Upper Peninsula of Michigan tonight through the first half of the
weekend…

…Much of the U.S. will see below to much below normal temperatures going
into the weekend…

Updated at 3:47 p.m. EDT on Wednesday, March 15, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
336 PM EDT Wed Mar 15 2023

Valid 00Z Thu Mar 16 2023 – 00Z Sat Mar 18 2023

…Heavy snow to impact the central Rockies tonight into Thursday, while
also spreading across the Upper Midwest and Great Lakes through Friday…

…Severe thunderstorms and instances of flash flooding possible across
parts of the southern Plains and lower Mississippi Valley Thursday into
Thursday night…

…Freeze Warnings and Frost Advisories in effect across the Southeast,
with well below average temperatures shifting to much of the central U.S.
by the end of the week…

Updated at 9:23 p.m. EDT Tuesday March 14, 2023

Here is what we are paying attention to in the next 48 to 72 hours. The article also includes weather maps for longer-term outlooks and a five-day World weather forecast.

We start with the U.S. Information.

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
346 PM EDT Tue Mar 14 2023

Valid 00Z Wed Mar 15 2023 – 00Z Fri Mar 17 2023

…Heavy rain and the potential for significant flash flooding continues
for parts of central/southern California tonight…

…Gusty winds and periods of heavy snow lingers across New England
through early Wednesday…

…Next storm system to enter the central U.S. by Thursday to bring the
threat of heavy snow throughout the Upper Midwest/Great Lakes, with the
potential for flash flooding and severe weather across the Southern
Plains/Lower Mississippi Valley…