777
FXUS01 KWBC 300802
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
301 AM EST SAT DEC 30 2023
VALID 12Z SAT DEC 30 2023 - 12Z MON JAN 01 2024
...MODERATE TO LOCALLY HEAVY RAINFALL CONTINUES FOR THE WEST COAST
SATURDAY; ACCUMULATING SNOWFALL FOR THE SIERRAS...
...LIGHT WINTRY MIX FORECAST FOR NEW ENGLAND, THE APPALACHIANS,
AND PORTIONS OF THE MIDWEST...
..COOLER TEMPERATURES AND CHILLY MORNING LOWS FOR THE SOUTHEAST
AN AMPLIFIED UPPER-LEVEL TROUGH AND SURFACE FRONTAL SYSTEM PUSHING
ONSHORE ALONG THE WEST COAST WILL CONTINUE TO BRING SOME MODERATE
TO LOCALLY HEAVY RAINFALL SATURDAY, WITH THE HIGHEST AMOUNTS
EXPECTED ALONG THE COAST. HIGHER ELEVATIONS IN THE SIERRA,
GENERALLY ABOVE 6500 FEET, WILL SEE ADDITIONAL SNOW ACCUMULATIONS
OF 2-6", LOCALLY ABOVE A FOOT. SOME LIGHT ACCUMULATIONS ARE ALSO
EXPECTED FOR HIGHER ELEVATIONS OF THE SAN BERNARDINO AND RIVERSIDE
COUNTY MOUNTAINS. A LIGHT WINTRY MIX IS POSSIBLE INTO PORTIONS OF
THE GREAT BASIN. PRECIPITATION SHOULD COME TO AN END FOR THE
PACIFIC NORTHWEST AND NORTHERN CALIFORNIA BY SUNDAY MORNING BUT
WILL CONTINUE FOR SOUTHERN CALIFORNIA AS ANOTHER PACIFIC SYSTEM
APPROACHES. IN ADDITION, HIGH SURF AND COASTAL FLOODING WILL
REMAIN A THREAT ALONG THE CENTRAL CALIFORNIA COAST THROUGH
SATURDAY AFTERNOON AND SOUTHERN CALIFORNIA THROUGH NEW YEAR'S DAY
AS THIS SECOND SYSTEM APPROACHES. FORECAST HIGH TEMPERATURES
ACROSS THE WEST WILL GENERALLY BE ABOVE AVERAGE, WITH 40S FOR THE
ROCKIES AND GREAT BASIN, 50S FOR THE PACIFIC NORTHWEST, 50S AND
60S FOR CALIFORNIA, AND 60S AND 70S FOR THE DESERT SOUTHWEST.
A LIGHT WINTRY MIX IS EXPECTED FOR PORTIONS OF NEW ENGLAND
SATURDAY WITH A FRONTAL SYSTEM DRAPED THROUGH THE REGION, AS WELL
AS SOUTHWESTWARD THROUGH THE APPALACHIANS AS AN UPPER-LEVEL LOW
LINGERS OVERHEAD. ANY ACCUMULATIONS SHOULD REMAIN LIMITED, WITH
PERHAPS AN INCH OR SO, MOST LIKELY FOR PORTIONS OF NORTHERN MAINE
AND THE CENTRAL APPALACHIANS. TO THE WEST, A CLIPPER SYSTEM
DROPPING THROUGH THE UPPER MIDWEST WILL ALSO BRING A LIGHT WINTRY
MIX SATURDAY, SPREADING SOUTHEASTWARD THROUGH THE GREAT LAKES AND
INTO THE UPPER OHIO VALLEY/CENTRAL APPALACHIANS SUNDAY. ANY
ACCUMULATIONS HERE SHOULD ALSO REMAIN LIMITED TO A DUSTING TO 1".
FORECAST HIGH TEMPERATURES ACROSS THE REGION RANGE IN THE 30S AND
40S.
HIGHS WILL REMAIN BELOW AVERAGE SATURDAY FOR MUCH OF THE SOUTHEAST
FOLLOWING A FRONTAL PASSAGE AND AS THE AFOREMENTIONED UPPER LOW
PASSES OVERHEAD. HIGHS WILL MAINLY BE IN THE 40S AND LOW 50S
INLAND, WITH MID- TO UPPER 50S ALONG THE NORTHERN GULF COAST AND
NORTH FLORIDA, AND 60S FOR CENTRAL AND SOUTH FLORIDA. MORNING LOWS
WILL DROP TO NEAR OR BELOW FREEZING FOR INLAND LOCATIONS SUNDAY
MORNING, AND ALSO FOR THE FLORIDA PANHANDLE INTO NORTH FLORIDA. A
FREEZE WATCH HAS BEEN ISSUED FOR PORTIONS OF SOUTHERN GEORGIA AND
NORTH FLORIDA WHERE SENSITIVE VEGETATION MAY BE DAMAGED OR
DESTROYED. TEMPERATURES WILL REBOUND SUNDAY AS THE UPPER LOW
DEPARTS TO THE EAST, WITH HIGHS INTO THE UPPER 50S AND 60S.
ELSEWHERE, CONDITIONS WILL BE DRY FOR THE PLAINS, WITH GENERALLY
ABOVE AVERAGE TEMPERATURES SATURDAY. FORECAST HIGHS RANGE IN THE
20S AND 30S FOR THE NORTHERN PLAINS, 40S AND 50S FOR THE CENTRAL
PLAINS, AND 50S AND 60S FOR THE SOUTHERN PLAINS, WITH SOME 70S
POSSIBLE FOR SOUTH TEXAS. A COLD FRONT WILL BRING SOME COOLER
TEMPERATURES TO THE CENTRAL PLAINS SUNDAY, WITH HIGHS ONLY
REACHING INTO THE 30S.
PUTNAM
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