Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
1116 PM EST Sat Feb 25 2023

Valid 12Z Sun Feb 26 2023 - 12Z Tue Feb 28 2023

...Heavy snow over the Cascades, Sierra Nevada and Northeast...

...Snow and rain/freezing rain over parts of the Upper Midwest...

...There is a Moderate Risk of severe thunderstorms over parts of the
Southern Plains on today...

A low pressure system will produce heavy snow across the Cascades, Sierra
and Rockies, as well as rain along the West coast today. Over a foot of
snow is possible in the Sierra and southern Cascades. Another system will
arrive over the Pacific Northwest tonight and generate more heavy snowfall
across the West. Generally between 1-2 feet of snow is possible across the
western mountains with portions of the Sierra potentially picking up over
3 feet by Tuesday morning leading to dangerous to impossible travel across
the mountain range.

As the Storm over the Great Basin moves out of the Rockies on Sunday
afternoon, showers and severe thunderstorms will develop over the Plains.
Therefore, the SPC has issued a Moderate Risk of severe thunderstorms over
parts of the Southern Plains from Sunday into Monday morning. The hazards
associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, hail, and a few tornadoes. Additionally, there is
an increased risk of severe thunderstorm wind gusts of 65 knots or greater
over parts of Oklahoma into southwestern Missouri.

Overnight Sunday, the rain moves northward into Upper Mississippi
Valley/Upper Great Lakes; areas of rain/freezing rain will develop over
the region, with the rain/freezing rain moving into parts of the Lower
Great Lakes by Monday afternoon. Also, on Monday, the rain will change
over to snow over parts of the Upper Mississippi Valley/Upper Great Lakes,
and snow developing over parts of the Northeast as rain moves into the
Ohio Valley and Mid-Atlantic. In the meantime, showers and severe
thunderstorms will develop over parts of the Ohio Valley on Monday.
Therefore, the SPC has issued a Slight Risk of severe thunderstorms over
parts of the Ohio Valley on Monday morning. The hazards associated with
these thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a few tornadoes.

The dynamic Midwest system is expected to push heavy rain and snow and ice
into the Northeast Monday night leading to disruptive travel conditions
for the area. 6-12 inches of snow are currently forecast for much of the
Northeast while some light freezing rain accretion is possible in the
northern portions of the Mid-Atlantic. Above normal temperatures in the
East and below normal temperatures in the West are expected to kick off
the week.

Kebede/Ziegenfelder


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