116
FXUS01 KWBC 220811
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT SAT MAR 22 2025
VALID 12Z SAT MAR 22 2025 - 12Z MON MAR 24 2025
...MORE WET WEATHER EXPECTED FOR THE PACIFIC NORTHWEST AND
MOUNTAIN SNOW ACROSS THE NORTHERN ROCKIES THIS WEEKEND...
...SNOW DEVELOPS ACROSS THE UPPER MIDWEST TO THE UPPER GREAT LAKES
ON SUNDAY AS SEVERE WEATHER AND HEAVY RAIN THREAT EMERGE ACROSS
THE DEEP SOUTH ON SUNDAY...
...FIRE WEATHER THREAT CONTINUES ACROSS LARGE PORTIONS OF THE
CENTRAL TO SOUTHERN PLAINS...
A PROGRESSIVE WEATHER PATTERN WILL CONTINUE TO SEND UNSETTLED
WEATHER ONSHORE INTO THE PACIFIC NORTHWEST FOLLOWED BY THE
FORMATION OF A LOW PRESSURE SYSTEM OVER THE NORTHERN PLAINS FOR
THE REMAINDER OF THE WEEKEND. THE FIRST WAVE OF MOISTURE WILL
REACH FARTHER INLAND TODAY ACROSS IDAHO AND INTO THE NORTHERN
ROCKIES AS MOUNTAIN SNOWS AND LOWER-ELEVATION RAINS. THIS WILL
ALLOW THE RAIN NEAR THE COAST ALONG THE PACIFIC NORTHWEST TO TAPER
OFF TEMPORARILY TODAY BEFORE THE NEXT WAVE OF MOISTURE ARRIVES ON
SUNDAY. THIS NEXT MOISTURE PLUME WILL AIM MAINLY TOWARD
WASHINGTON STATE WHERE A PERIOD OF MODERATE TO HEAVY RAIN IS
EXPECTED LATER ON SUNDAY. THE HIGHER ELEVATION OF THE NORTHERN
CASCADES CAN EXPECT MORE THAN A FOOT OF NEW SNOW FROM THIS
MOISTURE PLUME.
MEANWHILE, THE UPPER-LEVEL TROUGH ASSOCIATED WITH THE FIRST WAVE
OF MOISTURE WILL ADVANCE TOWARD THE NORTHERN PLAINS WHERE A LOW
PRESSURE SYSTEM IS FORECAST TO DEVELOP AND TRACK EASTWARD TODAY.
SNOW CAN BE EXPECTED TO MOVE ACROSS THE NORTHERN ROCKIES TODAY
WITH MIXED RAIN/SNOW SHOWERS MOVING DOWNSTREAM INTO THE NORTHERN
HIGH PLAINS. THE LOW PRESSURE SYSTEM WILL CONTINUE ITS EASTWARD
TRACK ACROSS THE UPPER MIDWEST INTO THE UPPER GREAT LAKES ON
SUNDAY WHILE DEEPENING AND EXPANDING IN SIZE. THIS SYSTEM WILL
BRING A PERIOD OF SNOW FROM THE FAR NORTHERN PLAINS/NORTHERN
MINNESOTA ON SUNDAY, SPREADING INTO THE UPPER GREAT LAKES BY
SUNDAY NIGHT AS THE SYSTEM CENTER PASSES JUST TO THE SOUTH.
UPWARDS OF 6 TO 8 INCHES OF NEW SNOW WITH LOCALLY HIGHER AMOUNTS
CAN BE EXPECTED NEAR THE UPPER GREAT LAKES.
TO THE SOUTH OF THE SYSTEM, A LACK OF MOISTURE WILL INITIALLY
SUPPRESS THUNDERSTORM ACTIVITIES ACROSS THE SOUTHERN PLAINS TODAY.
BY TONIGHT, A BATCH OF THUNDERSTORMS IS FORECAST TO DEVELOP AND
MOVE ACROSS THE OZARKS AND MUCH OF MISSOURI AHEAD OF A LOW
PRESSURE WAVE. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO EXPAND
ACROSS THE OHIO VALLEY AND LOWER GREAT LAKES ON SUNDAY AS THE LOW
PRESSURE WAVE MERGES WITH THE MAIN SYSTEM. BY SUNDAY NIGHT INTO
EARLY MONDAY, A HIGHER THREAT OF SEVERE WEATHER MAINLY IN THE FORM
OF HIGH WINDS AND HAIL CAN EXPECTED TO DEVELOP ACROSS THE DEEP
SOUTH AHEAD OF A INTENSIFYING COLD FRONT TRAILING SOUTH FROM THE
LOW CENTER. MONDAY MORNING COULD SEE THE RAIN REACHING THE
NORTHERN MID-ATLANTIC WITH SOME WINTRY MIX OVER THE POCONOS.
A COLD FRONT AND A WEAK WAVE OF LOW PRESSURE WILL BRING A PERIOD
OF MIXED RAIN AND SNOW ACROSS THE GREAT LAKES TODAY BEFORE MOVING
INTO THE INTERIOR NORTHEAST TONIGHT. A BRIEF COLD SNAP INTO THE
SINGLE DIGITS ACROSS NORTHERN MINNESOTA THIS MORNING WILL BE IN
CONTRAST TO SPRING-LIKE TEMPERATURES REACHING INTO THE 60S AND 70S
FOR THE MID-ATLANTIC STATES BY THIS AFTERNOON. MEANWHILE, VERY
DRY CONDITIONS ALONG WITH BLUSTERY WINDS AND WARMING TEMPERATURES
WILL CONTINUE TO RAISE FIRE WEATHER DANGER ACROSS MUCH OF THE
CENTRAL AND SOUTHERN PLAINS TODAY, WITH THE THREAT LOWERING A BIT
ON SUNDAY.
KONG
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