527
FXUS01 KWBC 262029
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 PM EST MON FEB 26 2024
VALID 00Z TUE FEB 27 2024 - 00Z THU FEB 29 2024
...HEAVY SNOW MOUNTAIN SNOW WITH BRIEF SNOW SQUALLS ACROSS THE
NORTHWESTERN U.S. THROUGH TONIGHT INTO TUESDAY...
...MODERATE TO HEAVY SNOW FROM NORTH DAKOTA INTO NORTHERN
MINNESOTA ON TUESDAY...
...SEVERE THUNDERSTORMS POSSIBLE TUESDAY EVENING/NIGHT FROM THE
MIDWEST TO THE OHIO VALLEY/GREAT LAKES...
...RECORD WARMTH ENGULFING MUCH OF THE MID-SECTION OF THE COUNTRY
WILL BE DRASTICALLY COLDER BY WEDNESDAY WITH SUB-ZERO WILL CHILLS
ACROSS THE NORTHERN PLAINS AND UPPER MIDWEST...
THE STAGE IS SET FOR A DOME OF ARCTIC AIR THAT HAS BEEN LOCKED UP
IN CANADA TO BE UNLEASHED INTO THE UNITED STATES THROUGH THE NEXT
COUPLE OF DAYS. AN AMPLIFYING UPPER-LEVEL TROUGH THAT IS
INSTRUMENTAL IN UNLEASHING THE ARCTIC AIR MASS IN CANADA FOR THE
PAST WEEK WILL FIRST PUSH A COLD FRONT RAPIDLY ACROSS THE
NORTHWESTERN U.S. THROUGH TONIGHT. THE FRONT WILL SWEEP ACROSS
THE REGION WITH RAPIDLY FALLING TEMPERATURES, GUST WINDS, AND
BRIEF PERIODS OF SNOW SQUALLS ACROSS THE INTERIOR PACIFIC
NORTHWEST, REACHING INTO THE NORTHERN ROCKIES BY TUESDAY MORNING.
MEANWHILE, THE ARCTIC AIR WILL BE SURGING INTO THE NORTHERN PLAINS
IN EARNEST TONIGHT. A LOW PRESSURE SYSTEM THAT FORMS ALONG THE
FRONT WILL ORGANIZE A SWATH OF MODERATE SNOW ACROSS NORTH DAKOTA
THROUGH TONIGHT, BECOMING HEAVY SNOW TUESDAY MORNING ACROSS
NORTHERN MINNESOTA. THE LOW PRESSURE SYSTEM IS FORECAST TO
INTENSIFY RAPIDLY AND MOVE ACROSS THE GREAT LAKES TUESDAY NIGHT
INTO WEDNESDAY MORNING, BRINGING A PERIOD OF SNOW ACROSS THE
REGION BEHIND THE STORM CENTER.
MUCH OF THE MID-SECTION OF THE COUNTRY HAS BEEN DOMINATED BY A DRY
AND WARM AIR MASS UNDER THE INFLUENCE OF AN EXPANSIVE HIGH
PRESSURE SYSTEM LATELY. A LARGE AREA OF RECORD WARM TEMPERATURES
IS ENGULFING MUCH OF THE MID-SECTION OF THE COUNTRY THIS
AFTERNOON. AS THE ARCTIC AIR MASS ADVANCES INTO THE UNITED STATES
THROUGH THE NEXT COUPLE OF DAYS, DRASTICALLY COLDER TEMPERATURES
WILL BE USHERED DOWN THE PLAINS ON TUESDAY, AND THEN ACROSS THE
GREAT LAKES, THE OHIO VALLEY TOWARD THE DEEP SOUTH AND THE EAST
COAST BY WEDNESDAY EVENING, WITH SUB-ZERO WILL CHILLS ACROSS THE
NORTHERN PLAINS BY TONIGHT REACHING INTO THE UPPER MIDWEST
WEDNESDAY MORNING. IN ADDITION, THE COLD FRONT IS FORECAST TO
BECOME VERY POTENT, WITH SHOWERS AND THUNDERSTORMS RAPIDLY FORMING
OVER THE OHIO VALLEY INTO THE LOWER GREAT LAKES TUESDAY EVENING
ALONG WITH WARM AND GUSTY WINDS. SOME OF THESE THUNDERSTORMS ARE
EXPECTED TO BECOME SEVERE AS WELL. THE WINDS BEHIND THE FRONT
WILL BECOME VERY STRONG AND GUSTY FROM THE NORTH AND NORTHWEST
WITH RAPIDLY FALLING TEMPERATURES SURGING DOWN THE PLAINS STATES
AND UP INTO THE GREAT LAKES THROUGH WEDNESDAY.
FOLLOWING THE HEAVY MOUNTAIN SNOWS AND SNOW SQUALLS TONIGHT,
PRECIPITATION IS EXPECTED TO GRADUALLY BECOME LIGHTER AND MORE
SCATTERED THROUGH WEDNESDAY. HOWEVER, MOISTURE FROM THE NEXT
PACIFIC SYSTEM IS FORECAST TO REACH THE PACIFIC NORTHWEST BY
TUESDAY NIGHT WITH COASTAL RAIN AND INCREASINGLY HEAVY SNOW
REACHING INTO THE CASCADES ON WEDNESDAY. MEANWHILE, SOME RAIN
COULD REACH SOUTHERN ARIZONA AND SOUTHERN NEW MEXICO LATER ON
WEDNESDAY WHEN A LINGERING PACIFIC CUTOFF SYSTEM FINALLY MAKES ITS
WAY INTO BAJA CALIFORNIA.
KONG
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