910
FXUS01 KWBC 130729
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
216 AM EST THU NOV 13 2025
VALID 12Z THU NOV 13 2025 - 12Z SAT NOV 15 2025
...SNOW EXPECTED TO CONTINUE ACROSS LOWER GREAT LAKES AND INTERIOR
NORTHEAST/NEW ENGLAND...
..ABOVE AVERAGE TEMPERATURES ACROSS THE WEST AND CENTRAL U.S.
...STRONG CYCLONE DEVELOPING OFF THE WEST COAST WILL BRING HEAVY
RAINFALL, HEAVY MOUNTAIN SNOW AND STRONG WINDS TO PORTIONS OF
CALIFORNIA THROUGH SATURDAY...
UPPER TROUGHING OVER THE CANADIAN MARITIME WILL GENERATE COOL
WESTERLY FLOW OVER THE LOWER GREAT LAKES AND INTERIOR NORTHEAST
OVER THE NEXT COUPLE OF DAYS. THIS WILL LEAD TO THE PERSISTENCE OF
LAKE EFFECT SNOW SHOWERS ACROSS THE REGION THROUGH THIS WEEKEND.
ELSEWHERE, UPPER-LEVEL RIDGING OVER THE WEST/CENTRAL U.S. WILL
PROMOTE ABOVE AVERAGE TEMPERATURES ACROSS THOSE AREAS THROUGH
SATURDAY. HIGHS IN THE 60S COULD BREAK HIGH TEMPERATURE RECORDS IN
THE NORTHERN ROCKIES TODAY. LOW TEMPERATURES IN THE 40S IN THE
NORTHERN HIGH PLAINS TONIGHT WILL BE 20-30 DEGREES ABOVE AVERAGE
AND MAY TIE OR BREAK EXISTING RECORDS. CLOUDY/RAINY CONDITIONS
OVER THE SOUTHWEST WILL KEEP LOW TEMPERATURES IN THE 50S AND 60S
TONIGHT, WHICH MAY ALSO TIE/BREAK MINIMUM TEMPERATURE RECORDS. AS
THE UPPER TROUGH PUSHES CLOSER TO THE WEST COAST, SOUTHERLY FLOW
BENEATH THE CENTRAL U.S. RIDGE WILL INCREASE LEADING TO WELL ABOVE
AVERAGE TEMPERATURES ACROSS THE GREAT PLAINS ON FRIDAY. SEVERAL
MAXIMUM AND MINIMUM TEMPERATURE RECORDS MAY BE TIED OR BROKEN DUE
TO TEMPS BEING BETWEEN 20-30 DEGREES ABOVE AVERAGE.
THE UPPER-LOW APPROACHING THE WEST COAST WILL AMPLIFY TODAY, WHILE
IT SPREADS HEAVY PRECIPITATION AND STRONG WINDS ACROSS CALIFORNIA.
HEAVY RAIN IS EXPECTED TO PROLIFERATE THROUGHOUT MUCH OF THE
CALIFORNIA COASTLINE AND INTO THE SIERRA NEVADA TODAY. A SLIGHT
RISK (AT LEAST 15% CHANCE) OF EXCESSIVE RAINFALL LEADING TO FLASH
FLOODING IS IN EFFECT FOR PARTS OF THE BAY AREA, WHERE SOME
INSTABILITY MAY BE PRESENT, AS WELL AS UPSLOPE AREAS OF THE SIERRA
TODAY. SCATTERED SHOWERS AND THUNDERSTORMS SHIFT SOUTH INTO
SOUTHERN CALIFORNIA ON FRIDAY ALONG WITH THE THREAT FOR EXCESSIVE
RAINFALL. A SLIGHT RISK IS IN EFFECT FOR NORTHERN LOS ANGELES
COUNTY AND THE TRANSVERSE RANGES ON FRIDAY. HEAVY SNOW IS POSSIBLE
FOR SOUTHERN PORTIONS OF THE SIERRA THROUGH SATURDAY MORNING, BY
WHICH TIME 1-2 FEET OF SNOW MAY HAVE ACCUMULATED. HIGH WIND
WARNINGS AND WIND ADVISORIES ARE IN EFFECT ACROSS MUCH OF
NORTHERN/CENTRAL CALIFORNIA AND WESTERN NEVADA FOR THIS MORNING
AHEAD OF THE APPROACHING LOW PRESSURE SYSTEM. WINDS OUT OF THE
SOUTHWEST AT 40-55 MPH WILL IMPACT PORTIONS OF EASTERN GLACIER
NATIONAL PARK AND ADJACENT FOOTHILLS THIS AFTERNOON THROUGH FRIDAY
AFTERNOON DUE TO THE PRESENCE OF A STRONG LOW PRESSURE SYSTEM
MOVING ACROSS SOUTH-CENTRAL CANADA.
KEBEDE
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