Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
454 AM EDT Wed Apr 06 2022

Valid 12Z Wed Apr 06 2022 - 12Z Fri Apr 08 2022

...An expansive low pressure system will deliver persistent wet snow over
the upper Midwest, strong to severe thunderstorms across the Southeast,
and areas of heavy rain along the East Coast...

...Widespread strong/high winds continue from the Rockies to much of the
Plains with elevated to extreme fire risk over the central to southern
High Plains...

...Heat is expected to challenge high temperature records over
California...

A deep low pressure system centered over the upper Midwest this morning is
forecast to further expand its influence as it engulfs much of the eastern
two-thirds of the country through the next couple of days.  Widespread
high winds gusting to hurricane force have already been impacting much of
the northern and central Rockies and out into the northern and central
Plains.  The expansive circulation of the cyclone against a strong area of
high pressure centered over the Northwest will combine to sustain strong
to high winds through much of the Plains into late week.  Closer to the
center of the cyclone, wet snow is forecast to persist for a couple of
days from the upper Midwest into the upper Great Lakes as the cyclone
meanders in the same vicinity with some areas receiving 6 to 12 inches of
accumulation possible.  Colder than normal temperatures behind the huge
cyclonic circulation will dive all the way down to the Gulf Coast.  Under
the continued impact of high winds and dry air flowing down the Rockies,
fire weather threat is expected reach extreme levels over the southern
High Plains today and will remain at elevated levels into late week.

On the warm side of the cyclone, a couple of days of active weather can be
expected to sweep through the eastern half of the country.  In fact, a
more compact low pressure system is delivering rain up the Mid-Atlantic
coast toward New England this morning.  As the low begins to move off the
Mid-Atlantic coast, the rain associated with the system is forecast to
move out to sea by later this afternoon.  However, showers and
thunderstorms associated with the expansive cyclone will quickly make
their way through the Midwest and Ohio Valley today before reaching the
East Coast on Thursday.  The highest threat of heavy rain and severe
thunderstorms will be across southeastern U.S. today as Gulf moisture is
destabilized and lifted near a warm front.  The hazards associated with
these thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a few tornadoes.  In addition, heavy rain associated with
these thunderstorms could create localized areas of flash flooding from
the Florida Panhandle to southern Georgia today.

By Thursday, the threat of severe thunderstorms is forecast to reach the
Mid-Atlantic Coast ahead of a strong cold front.  A low pressure wave is
forecast to develop along the front later on Thursday and move up the
Mid-Atlantic coast toward New England.  This wave is forecast to bring
some enhanced rainfall onshore into New England Thursday night into Friday
morning where a slight risk of excessive rain is forecast, along with
gusty winds.  In addition, interior higher elevations of New England could
see wintry precipitation during this time frame.

In stark contrast with the stormy weather in the eastern two-thirds of the
country, strong winds are expected to diminish as the high pressure system
settles across the Rockies.  A strong ridge of high pressure aloft is
forecast to build across the western U.S. into late week.  This ridge will
dispel the cold and windy weather up north as heat will progressively
build across the Southwest.  In fact, high temperatures are forecast to
challenge records by Thursday afternoon in California, with readings
possibly reaching the century mark near Los Angeles.  Gusty Santa Ana
winds could also make an appearance as the Rockies high pressure system
builds southward.  More record high temperatures are forecast for Friday
as the next Pacific cold front reaches the West Coast with rain/snow
reaching the Pacific Northwest Thursday night/Friday morning.

Kong

Graphics are available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php