Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
347 PM EDT Mon Oct 21 2019

Valid 00Z Tue Oct 22 2019 - 00Z Thu Oct 24 2019

...Rain and thunderstorms expected across the central and eastern U.S.,
with severe weather possible...

...Heavy rain continues through Tuesday for the Pacific Northwest...

A low pressure system is forecast to move through the Great Lakes region
into Canada over the next couple of days, sweeping a cold front eastward
across the Southeast and Tennessee and Ohio Valleys tonight and across the
Eastern Seaboard on Tuesday. Rain and thunderstorms are expected in the
vicinity of the low and along and ahead of the cold front. The Storm
Prediction Center has outlooked a Slight Risk of severe weather for the
central and eastern Gulf Coast through Monday night, and a Slight Risk for
the eastern Carolinas into far southwestern Virginia on Tuesday as the
front pushes eastward. Showers and thunderstorms will generally be
progressive, but isolated flash flooding is possible with locally heavy
rain. Some light snow or rain/snow mix is possible in portions of the
Northern Plains to Upper Midwest on the backside of the low. Additionally,
gusty winds are ongoing behind the low, and Wind Advisories and High Wind
Warnings are in place for the Central/Northern Plains to Middle/Upper
Mississippi Valley.

An atmospheric river/plume of moisture will take aim at the Pacific
Northwest through Tuesday, causing the potential for heavy rain. The
highest rainfall is expected in the favored higher terrain of the Coastal
Range and Cascades. Rain should clear out in the Pacific Northwest after a
cold front passes, but that low pressure system and cold front will help
cause rain and snow in the Northern to Central Rockies and Northern Plains
on Tuesday and Wednesday. Locally heavy snow is possible in higher terrain
of the Rockies and Wind River Mountains/Tetons.

Elsewhere, warm temperatures, gusty winds, and low humidities will lead to
favorable conditions for fire weather for the Southern High Plains and
portions of California. Another warm spot will be the Florida peninsula,
where close to record warm temperatures are possible over the next couple
days.

Tate

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