732
FXUS01 KWBC 072007
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 PM EST WED FEB 07 2024
VALID 00Z THU FEB 08 2024 - 00Z SAT FEB 10 2024
...ONE MORE ROUND OF MODERATE TO LOCALLY HEAVY RAINFALL WILL SWEEP
ACROSS CALIFORNIA THROUGH TONIGHT, REACHING INTO THE DESERT
SOUTHWEST ON THURSDAY...
...MORE HIGHER-ELEVATION HEAVY SNOW ACROSS THE INTERMOUNTAIN WEST
WITH A WINTRY MIX OVER THE NORTHERN HIGH PLAINS THROUGH TONIGHT;
MAINLY ACROSS THE FOUR CORNERS ON THURSDAY...
...TEMPERATURES WILL CONTINUE TO RUN ABOVE AVERAGE FOR THE
CENTRAL/EASTERN U.S. WITH RECORD WARMTH OVER PARTS OF THE UPPER
MIDWEST INTO THE GREAT LAKES...
AS ANOTHER ENERGETIC UPPER-LEVEL TROUGH AND ASSOCIATED FRONTAL
SYSTEMS REACH THE WEST COAST, ANOTHER ROUND OF MODERATE TO LOCALLY
HEAVY RAINFALL CONTINUES TO PUSH ONSHORE ACROSS NORTHERN AND
CENTRAL CALIFORNIA THIS WEDNESDAY AFTERNOON. THE HEAVY RAIN
FALLING ON TOP OF THE VERY WET ANTECEDENT CONDITIONS MAY STILL
BRING A RISK FOR SOME ISOLATED INSTANCES OF FLOODING, PARTICULARLY
ALONG COASTAL CENTRAL AND SOUTHERN CALIFORNIA THROUGH TONIGHT AND
REMAINING ALONG THE MOGOLLON RIM OF ARIZONA THROUGH THURSDAY.
HIGHER ELEVATIONS OF THE SIERRA NEVADA AND TRANSVERSE/PENINSULAR
RANGES WILL SEE SOME ADDITIONAL HEAVY SNOWFALL TOTALS OF AROUND
6-12", WHILE THE CASCADES AND NORTHERN COASTAL RANGES OF
CALIFORNIA WILL SEE SOME LIGHT TO MODERATE SNOWFALL.
MEANWHILE, A LOW PRESSURE SYSTEM THAT HAS BEEN DEVELOPING OVER THE
CENTRAL HIGH PLAINS WILL TRACK NORTHEASTWARD ACROSS THE NORTHERN
PLAINS THROUGH TONIGHT BEFORE CROSSING THE UPPER MIDWEST ON
THURSDAY. MOIST SOUTHEASTERLY FLOW OVERRIDING COLDER AIR ALONG
AND EAST OF THE ROCKIES WILL BRING AN EXPANDING AREA OF SNOW
ACROSS THE NORTHERN PLAINS THROUGH THURSDAY BEFORE TAPERING OFF
OVER THE UPPER MIDWEST ON FRIDAY AS THE LOW PRESSURE SYSTEM MOVES
AWAY TOWARD JAMES BAY, CANADA. MOST LOCATIONS ACROSS THE NORTHERN
PLAINS SHOULD RECEIVE 6 INCHES OR LESS OF SNOW FROM THIS SYSTEM.
HOWEVER, SOME SNOW BANDS COULD DELIVER HEAVIER SNOWFALL OF UP TO A
FOOT OVER PORTIONS OF MONTANA.
BETWEEN THE SYSTEM MOVING INTO CALIFORNIA AND THE DEVELOPING LOW
PRESSURE SYSTEM OVER THE HIGH PLAINS, WIDESPREAD SNOWFALL CAN BE
EXPECTED ACROSS THE INTERMOUNTAIN WEST THROUGH TONIGHT. REGIONAL
MOUNTAIN RANGES SUCH AS THE WASATCH AND CENTRAL ARIZONA WILL
RECEIVE HEAVY SNOW, WHERE ADDITIONAL SNOWFALL OVER THE NEXT TWO
DAYS WILL GENERALLY RANGE BETWEEN 10-20", WITH TOTALS OVER 2 FEET
POSSIBLE. HIGHER ELEVATIONS OF THE NORTHERN ROCKIES AND CENTRAL
GREAT BASIN WILL GENERALLY SEE BETWEEN 4-8 INCHES, WITH SOME
LOCALLY HIGHER AMOUNTS. LOWER ELEVATIONS/VALLEYS WILL SEE A MIX
OF LIGHT TO MODERATE RAIN AND SNOW SHOWERS, THOUGH ANY SNOW
ACCUMULATIONS SHOULD REMAIN LIMITED. PRECIPIATION CHANCES SHOULD
TREND DOWNWARD ON THURSDAY AND INTO FRIDAY AS THE SYSTEM FINISHES
TRAVERSING THE SOUTHERN ROCKIES AND BEGINS ORGANIZING A NEW LOW
PRESSURE SYSTEM OVER THE SOUTH-CENTRAL HIGH PLAINS ON FRIDAY WITH
SCATTERED SHOWERS AND SOME THUNDERSTORMS DEVELOPING OVER THE
MID-SOUTH.
HIGH TEMPERATURES WILL REMAIN ABOVE AVERAGE BROADLY ACROSS
CENTRAL/EASTERN PORTIONS OF THE COUNTRY, WITH MUCH ABOVE AVERAGE
CONDITIONS CENTERED ON THE UPPER MIDWEST AND GREAT LAKES, WHERE
FORECAST HIGHS IN THE 40S, 50S, AND EVEN SOME LOW 60S ARE UPWARDS
OF 25-35 DEGREES ABOVE AVERAGE. SOME RECORD-TYING/BREAKING HIGH
TEMPERATURES ARE POSSIBLE. OTHERWISE, HIGHS WILL GENERALLY RANGE
IN THE 30S AND 40S FOR NEW ENGLAND, 40S AND 50S FOR THE
MID-ATLANTIC/CAROLINAS, 50S AND 60S FOR THE OHIO VALLEY/SOUTHEAST
AND CENTRAL PLAINS, AND 60S AND 70S FOR THE SOUTHERN PLAINS. HIGHS
WILL REMAIN BELOW AVERAGE IN THE WEST UNDER THE INFLUENCE OF THE
UPPER-LEVEL TROUGH AND ONGOING PRECIPITATION, WITH HIGHS IN THE
30S AND 40S FOR THE INTERMOUNTAIN WEST, 40S AND 50S FOR THE
PACIFIC NORTHWEST/NORTHERN CALIFORNIA, AND 50S AND 60S FOR
SOUTHERN CALIFORNIA AND THE DESERT SOUTHWEST.
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