Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
348 AM EDT Thu May 06 2021

Valid 12Z Thu May 06 2021 - 12Z Sat May 08 2021

...Unsettled weather enters the Pacific Northwest and Northern Great Basin
today before shifting into the Northern High Plains on Friday...

...Scattered showers and thunderstorms found across the Lower Great Lakes,
Ohio Valley, and Mid-Atlantic through the beginning of the weekend...

...Warm temperatures in the West spread into the Rockies and High Plains
on Friday as cooler temperatures remain throughout the East...

A relative lull in the recent active weather pattern is forecast to the
end the workweek. For the eastern half of the country, a lingering cold
front across Florida will produce scattered showers and thunderstorms
until exiting the region on Friday morning. A few storms could turn severe
along eastern sections of the peninsula today. A separate system swinging
through the Ohio and Tennessee valleys this afternoon is expected to spark
thunderstorms of its own, with low chances for damaging wind gusts and
large hail. By Friday, this same low pressure system and associated cold
front will reach the Mid-Atlantic, bringing additional rain and isolated
thunderstorms. Behind the cold front, cool and below average temperatures
will be found throughout much of the eastern U.S. over the next couple of
days. Highs will only reach the 50s and 60s across the Great Lakes, Ohio
Valley, Mid-Atlantic, and Northeast. This equates to temperatures around
10 to 20 degrees below average.

In the West, a cold front off the coast of the Pacific Northwest will push
inland this afternoon and evening through the Northwest and Northern Great
Basin. Light rain and higher elevation snow, as well as scattered
thunderstorms can be expected. Precipitation is then forecast to reach the
Northern Rockies and Northern High Plains by Friday while an upper-level
low drops southeastward into the region. As colder air aloft filters into
the Northern Rockies, snow could potentially mix into the lower elevations
of western Montana on Friday night.

While much of the Southwest and Central Great Basin dealing with
exceptional drought could use rain, little to no precipitation is
anticipated across this area with the approaching storm system.
Temperatures are also expected to remain well above average and top out
near the triple digits in the typical southwestern hot spots. Above
average temperatures will also be felt throughout much of the central and
southern Rockies/High Plains as well.

Snell

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