WEATHER WEDNESDAY Feb 21 2024 Great weather at the major hubs, West Coast Rains

The Weather Man Podcast, I talk about weather!

Heavy rain and heavy mountain snow in California continue through
tomorrow before subsiding.
Warming trend expected to expand from the Great Plains into the Midwest
through midweek.
Critical Fire Weather day over portions of the Southern Plains on
Wednesday.
The main area of unsettled weather through the next 24 hours remains over
California as showers and thunderstorms stream inland associated with a
deep upper-trough and atmospheric river. Southern California is once again
"under the gun" for numerous instances of flash flooding as the main band
of atmospheric river rainfall focuses through the overnight hours there.
Given the combination of saturated soils from previous rainfall and
periods of high rainfall rates approaching 1"/hour, a Moderate Risk of
Excessive Rainfall is in effect for Los Angeles and northern San Diego
counties through tomorrow morning. Outside of these areas, a broader
Slight Risk area (level 2/4) extends from Humboldt County down to San
Diego, as well as the Sacramento Valley and adjacent upslope areas of the
Sierra where scattered flash flooding is possible. In the mountains, an
additional 6-12 inches of snowfall are expected for the Sierra, while
12-18 inches are likely over the Shasta Siskiyous today. East of the
Sierra, the influx of Eastern Pacific moisture combined with falling snow
levels will support moderate to heavy snow over the Intermountain West
where generally between 6-12 inches of snow can be expected. This snowfall
is likely to continue into Wednesday and expand in coverage into the
Central Rockies.
East of the Continental Divide, widespread unseasonable warmth will
prevail through the work week as all of the cold Polar air remains
confined over Canada. This warm weather combined with dry, windy
conditions behind a cold front and dryline supports a Critical (level 2/3)
fire weather threat over portions of the Southern Plains tomorrow
according to the Storm Prediction Center. By Thursday, a developing wave
of low-pressure along a cold front will yield widespread showers and
thunderstorms over the Ohio Valley, which could lead to isolated instances
of flash flooding.