The Weather Man Podcast, I talk about weather!

WEATHER THURSDAY FEB 1 2024 LA County Heavy Rains ..Snow at Donners Pass

Stephen Pellettiere



Flash Flooding possible across parts of northern/central California
today, then central/southern California on Thursday.

Heavy Snow spreads into the Sierra Nevada, Great Basin, Intermountain
West and Rockies.

Above average temperatures continue across middle third of the
country.


Moisture will focus along a strong surface front entering the West Coast
tonight. Heavy to excessive rainfall is expected to impact the southern
Oregon coast down through central California tonight into early Thursday
morning. A Slight Risk (level 2/4) of Excessive Rainfall leading to Flash
Flooding is in effect for much of the aforementioned areas this evening.
The Flash Flooding threat shifts southward into southern California,
portions of the Central Valley and the foothills of the Sierra Nevada on
Thursday as the axis of heavy rain and thunderstorms sags south into a
highly sensitive and/or urbanized corridor. A Slight Risk (level 2/4) of
Excessive Rainfall is in effect for much of the southern California coast
from Los Angeles County down through the San Diego metro.

Heavy Snow will expand from the Shasta Siskiyous to the Sierra Nevada
tonight before spilling out over the Great Basin on Thursday and
eventually portions of the Intermountain West and Rockies on Friday. The
heaviest snowfall will occur over the Shasta Siskiyous and Sierra where
1-3' feet (isolated 4') are expected. Generally 1-2 feet are expected over
the higher elevations of the western mountains with isolated 2'+ amounts
possible. Low elevation rain is also expected as there will be warm air
associated with this low pressure system. Cloudy conditions will keep
temperatures cooler than average for much of the West Coast and Southwest
over the next couple of days.

A strong omega block high will support above average heights and
temperatures across the Central Plains and Mississippi Valley over the
next few days. Low temperatures in the 30s and 40s may break existing
records tonight over parts of the Central/Southern Plains and Upper/Middle
Mississippi Valley. High and low temperature anomalies will be +20-40
degrees above average. Elsewhere, snow showers are possible downwind of
the Lower Great Lakes and interior Northeast over the next couple of days
due to a low pressure system coming out of Canada. 2-4" of snowfall may
accumulate over northern Maine by Friday.