309
FXUS01 KWBC 032026
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 PM EST SUN MAR 03 2024
VALID 00Z MON MAR 04 2024 - 00Z WED MAR 06 2024
...SNOWY WEATHER PATTERN CONTINUES IN THE INTERIOR MOUNTAINS OF
NORTHWESTERN U.S. AND DOWN INTO THE SIERRA NEVADA AS THE NEXT
ROUND OF ENHANCED RAINFALL REACHES NORTHWESTERN CALIFORNIA AND
SOUTHWESTERN OREGON ON TUESDAY...
...ACCUMULATING SNOWFALL NEAR THE CANADIAN BORDER OF THE NORTHERN
PLAINS EXPECTED TO TAPER OFF EARLY ON MONDAY...
...ANOTHER COASTAL STORM IS FORECAST TO BRING NEW ROUND OF RAIN UP
THE ATLANTIC COAST FROM LATER MONDAY THROUGH TUESDAY AS SOME
THREAT OF HEAVY RAIN EMERGES ALONG THE CENTRAL GULF COAST...
...MUCH ABOVE AVERAGE, SPRING-LIKE TEMPERATURES SHIFTING FROM THE
PLAINS/MIDWEST INTO THE NORTHEAST AS CRITICAL FIRE WEATHER THREAT
PERSISTS THROUGH TONIGHT IN THE CENTRAL/SOUTHERN HIGH PLAINS...
AS THE MAIN ENERGY ASSOCIATED WITH THE LATEST WINTER STORM THAT
IMPACTED THE WESTERN U.S. MOVES OFF INTO THE NORTHERN PLAINS, THE
INTENSITY OF THE SNOW AND HIGH WINDS ALONG THE SIERRA NEVADA AS
WELL AS ACROSS THE INTERMOUNTAIN WEST WILL GRADUALLY WANE THROUGH
MONDAY. HOWEVER, REINFORCING UPPER-LEVEL ENERGIES ARRIVING FROM
THE PACIFIC WITH KEEP THE UNSTABLE COLD AIR MASS IN PLACE ACROSS A
LARGE SECTION OF THE WESTERN U.S., WITH FREQUENT ROUNDS OF
MOUNTAIN SNOWS CONTINUING AND REACHING AS FAR EAST AS THE CENTRAL
ROCKIES THROUGH THE NEXT COUPLE OF DAYS. FROM LATER ON MONDAY
INTO TUESDAY, ANOTHER INFLUX OF MOISTURE FROM THE NEXT PACIFIC
FRONTAL SYSTEM IS EXPECTED TO BRING A RENEWED ROUND OF ENHANCED
RAINFALL FROM NORTHWESTERN CALIFORNIA TO SOUTHWESTERN OREGON WHERE
SOME LOCALLY HEAVY RAINFALL MAY OCCUR. SOME EMBEDDED
THUNDERSTORMS COULD ALSO REACH FARTHER NORTH ALONG THE COAST OF
THE PACIFIC NORTHWEST AND NORTHERN CALIFORNIA ON MONDAY AS ADDED
INSTABILITY ASSOCIATED WITH A SURFACE TROUGH EDGES TOWARD THE
COAST. THE MOISTURE WILL THEN PENETRATE INLAND, REACHING INTO THE
NORTHERN ROCKIES AS A ROUND OF MODERATE TO LOCALLY HEAVY MOUNTAIN
SNOWS ON TUESDAY.
MEANWHILE, AN INTENSIFYING LOW PRESSURE SYSTEM IS BRINGING A ROUND
OF ACCUMULATING SNOWFALL NEAR THE CANADIAN BORDER OF NORTH DAKOTA
WITH A WINTRY MIX FARTHER EAST ACROSS NORTHERN MINNESOTA ON
SUNDAY. THE PRECIPITATION WILL TAPER OFF LATER TONIGHT AS THE
STORM MOVES FARTHER AWAY INTO SOUTHERN CANADA. TO THE SOUTH AND
EAST, THE RECENT DRY SPELL WILL INITIALLY LIMIT RAINFALL AMOUNTS
ALONG A WAVY FRONT TRAILING SOUTHWEST TOWARD A DEVELOPING LOW
PRESSURE SYSTEM OVER THE CENTRAL HIGH PLAINS. HOWEVER, PERSISTENT
SOUTHERLY FLOW FROM THE GULF OF MEXICO WILL EVENTUALLY DIRECT
MOISTURE NORTHWARD TO EXPAND AN AREA OF RAIN FROM THE MIDWEST TO
THE GREAT LAKES LATER ON MONDAY INTO TUESDAY. MEANWHILE, AN
UPPER-LEVEL DISTURBANCE WILL BEGIN TO INTERACT WITH THE RETURNING
GULF MOISTURE TO BRING AN EMERGING THREAT OF HEAVY RAIN INTO THE
CENTRAL GULF COAST STATES ON TUESDAY AND ESPECIALLY BY TUESDAY
EVENING.
ALONG THE EAST COAST, FOLLOWING A RECENT ROUND OF WIDESPREAD
ENHANCED RAINFALL, ANOTHER COASTAL LOW PRESSURE SYSTEM IS FORECAST
TO FORM ALONG THE STALLED FRONT AND TRACK UP THE MID-ATLANTIC
COAST MONDAY INTO TUESDAY. THIS RELATIVELY COMPACT SYSTEM IS
FORECAST TO DELIVER ANOTHER ROUND OF ENHANCED RAINFALL UP THE
MID-ATLANTIC STATES MONDAY AND TUESDAY, REACHING INTO NEW ENGLAND
BY TUESDAY AFTERNOON. ACROSS FLORIDA, THUNDERSTORM CHANCES ARE
FORECAST TO DECREASE AS THE LINGERING FRONT WEAKENS WITH TIME BUT
THEY WILL INCREASE AGAIN LATER ON TUESDAY AS THE AFOREMENTIONED
UPPER-LEVEL DISTURBANCE BEGINS TO APPROACH FROM THE WEST.
WIDESPREAD MUCH ABOVE AVERAGE, SPRING-LIKE HIGH TEMPERATURES WILL
PERSIST ACROSS THE CENTRAL/EASTERN U.S. INTO MONDAY. THE GREATEST
ANOMALIES OF 25-35 DEGREES OVER THE LOWER/MID-MISSOURI VALLEY
NORTHEASTWARD INTO THE UPPER GREAT LAKES ON SUNDAY WILL SHIFT INTO
THE OHIO VALLEY, LOWER GREAT LAKES, AND INTERIOR NORTHEAST ON
MONDAY. NUMEROUS DAILY RECORD-TYING/BREAKING HIGHS ARE POSSIBLE AS
TEMPERATURES REACH INTO THE 70S FOR MOST LOCATIONS. ACROSS THE
CENTRAL AND SOUTHERN PLAINS, PERSISTENTLY DRY CONDITIONS
ACCOMPANIED BY LEE TROUGHING AND GUSTY WINDS WILL CONTINUE THE
THREAT OF WILDFIRES IN THE NEARBY HIGH PLAINS AT LEAST THROUGH
TONIGHT INTO EARLY MONDAY. ALONG THE EAST COAST, HIGHS ARE
FORECAST TO RANGE BETWEEN THE 40S AND 50S FOR NEW ENGLAND, 50S AND
60S FOR THE MID-ATLANTIC, AND 70S TO LOW 80S FOR THE
SOUTHEAST/FLORIDA. IN THE WEST, HIGHS WILL REMAIN COOLER AND BELOW
AVERAGE, RANGING FROM THE 30S AND 40S IN THE PACIFIC NORTHWEST AND
MUCH OF THE INTERIOR WEST, 50S IN NORTHERN/CENTRAL CALIFORNIA, 60S
IN SOUTHERN CALIFORNIA, AND 60S AND 70S INTO THE DESERT SOUTHWEST.
THE COLDEST SPOT IN THE COUNTRY WILL BE IN THE NORTHERN
ROCKIES/ADJACENT HIGH PLAINS, WHERE HIGHS WILL BE IN THE TEENS AND
20S FOLLOWING A COUPLE COLD FRONT PASSAGES.
KONG/PUTNAM
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