058
FXUS01 KWBC 270810
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
310 AM EST WED NOV 27 2024
VALID 12Z WED NOV 27 2024 - 12Z FRI NOV 29 2024
...PRE THANKSGIVING TO THANKSGIVING DAY STORM TO PUSH FROM THE MID
MISSISSIPPI/OHIO VALLEY TODAY INTO THE NORTHEAST ON THURSDAY...
...DRY CONDITIONS ON TAP FOR THE WEST COAST AFTER SEVERAL DAYS OF
WET WEATHER...
...MUCH ABOVE AVERAGE TEMPERATURES FROM THE SOUTHERN PLAINS INTO
THE GULF COAST TODAY, WHILE MUCH BELOW AVERAGE TEMPERATURES SPILL
OUT INTO THE GREAT PLAINS AND MISSISSIPPI VALLEY THROUGH THE END
OF THE WEEK...
A LOW PRESSURE SYSTEM RESPONSIBLE FOR HEAVY SNOWFALL OVER THE
COLORADO ROCKIES (ENDING THIS MORNING) WILL INTENSIFY INTO A
DYNAMIC MID-LATITUDE CYCLONE, TRACKING THROUGH THE MIDWEST AND
INTO THE NORTHEAST COAST THROUGH THANKSGIVING DAY. SCATTERED
SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE MID/LOWER
MISSISSIPPI VALLEY AND OHIO/TENNESSEE VALLEYS THIS AFTERNOON
BEFORE SPREADING INTO THE EAST COAST TONIGHT AND PROGRESSIVELY
SHIFTING EASTWARD THROUGH THANKSGIVING DAY. A SWATH OF LIGHT TO
MODERATE SNOWFALL IS LIKELY TO DEVELOP ACROSS PORTIONS OF THE
INTERIOR NORTHEAST, WITH THE NORTHERN APPALACHIANS FORECAST TO
RECEIVE 4-8 INCHES OF SNOW BY FRIDAY MORNING.
ELSEWHERE, SNOW SHOWERS ACROSS THE UPPER GREAT LAKES MAY YIELD
ANYWHERE FROM 4-8 INCHES OVER THE NORTHERN COASTLINE OF THE UPPER
PENINSULA OF MICHIGAN AS WELL AS NORTHERN PARTS OF THE LOWER
PENINSULA. A DRY SPELL ENSUES ACROSS THE WEST AS AN UPPER RIDGE
SLOWLY SETTLES OVER THE REGION. SHORTWAVE ENERGY WILL PHASE WITH A
NORTHERN STREAM TROUGH AND AMPLIFY ACROSS THE EASTERN HALF OF THE
COUNTRY IN THE COMING DAYS. THIS DEVELOPMENT WILL ALLOW FOR A COOL
CONTINENTAL AIRMASS TO SPILL OUT ACROSS THE GREAT PLAINS AND
MISSISSIPPI VALLEY THROUGH THANKSGIVING DAY BEFORE A REINFORCING
ARCTIC AIRMASS PLUNGES TEMPERATURES EVEN MORE THROUGH THIS HOLIDAY
WEEKEND. PRIOR TO THAT, TODAY WILL BE THE LAST DAY OF MUCH ABOVE
AVERAGE TEMPERATURES THROUGHOUT THE SOUTH. MUCH OF TEXAS WILL
EXPERIENCE HIGH TEMPERATURES BETWEEN 15-25 DEGREES ABOVE AVERAGE.
KEBEDE
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