006
FXUS01 KWBC 251852
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
251 PM EDT MON SEP 25 2023
VALID 00Z TUE SEP 26 2023 - 00Z THU SEP 28 2023
...WET WEATHER EXPECTED ACROSS PORTIONS OF THE PACIFIC NORTHWEST,
UPPER MISSISSIPPI VALLEY INTO THE MID-WEST AND MUCH OF FLORIDA
INTO SOUTHERN GEORGIA...
...BELOW AVERAGE TEMPERATURES EXPECTED ACROSS THE NORTHWEST AND
FROM SOUTHERN NEW ENGLAND INTO THE MID-ATLANTIC...
...AN END TO THE RECENT STRING OF RECORD HIGHS OVER THE SOUTHERN
PLAINS, BUT ABOVE AVERAGE TEMPERATURES TO PERSIST THROUGH THE
ROCKIES, SOUTHWEST, CENTRAL TO SOUTHERN PLAINS AND MIDDLE TO LOWER
MISSISSIPPI VALLEY...
A STRONG AREA OF LOW PRESSURE ACROSS THE NORTHEAST PACIFIC IS
EXPECTED TO KEEP THE WEATHER PATTERN COOL AND WET OVER THE NEXT
FEW DAYS ACROSS THE PACIFIC NORTHWEST. THE CURRENT AREA OF RAIN
STRETCHING FROM NORTHWEST CALIFORNIA, NORTHWARD ACROSS WESTERN
OREGON AND WESTERN WASHINGTON STATE WILL BE FOLLOWED BY A SECOND
AREA OF PRECIPITATION MOVING INTO THE PACIFIC NORTHWEST ON TUESDAY
NIGHT INTO EARLY WEDNESDAY MORNING. THESE PERIODS OF RAINFALL ARE
MUCH NEEDED AS MUCH OR OREGON AND WASHINGTON STATE ARE
EXPERIENCING SEVERE TO EXTREME DROUGHT CONDITIONS. IN ADDITION TO
THE RAINFALL, TEMPERATURES WILL BE BELOW AVERAGE WITH HIGHS 10 TO
20 DEGREES BELOW AVERAGE FROM NORTHERN CALIFORNIA INTO MUCH OF
OREGON, WASHINGTON AND NORTHERN IDAHO. BELOW AVERAGE TEMPERATURES
ALSO EXPECTED TO PERSIST FROM SOUTHERN NEW ENGLAND, SOUTH INTO THE
MID-ATLANTIC AS A NEARLY STATIONARY AREA OF LOW PRESSURE OFF THE
MID-ATLANTIC COAST KEEPS THESE AREAS IN CLOUDS AND OCCASIONAL
SHOWERS.
A SEPARATE SLOW MOVING MID TO UPPER LEVEL LOW WILL ALSO KEEP WET
CONDITIONS FROM PORTIONS OF THE UPPER MISSISSIPPI VALLEY INTO THE
MID-WEST AS IT MOVES SLOWLY SOUTHEASTWARD OVER THE NEXT FEW DAYS.
THE CLOUDS AND RAINFALL ACROSS THESE AREA WILL ALSO KEEP
TEMPERATURES SLIGHTLY BELOW AVERAGE.
IN CONTRAST TO THE COOLER THAN AVERAGE TEMPERATURE REGIONS, ABOVE
AVERAGE TEMPERATURES WILL PERSIST ACROSS THE ROCKIES, SOUTHWEST,
CENTRAL TO SOUTHERN PLAINS AND INTO THE MIDDLE TO LOWER
MISSISSIPPI VALLEY. WHILE TEMPERATURES WILL BE AS MUCH AS 10
DEGREES ABOVE AVERAGE ACROSS THESE REGIONS, NO RECORD HIGHS ARE
EXPECTED, BRINGING AN END TO THE RECENT STRING OF RECORD HIGHS
ACROSS PORTIONS OF THE SOUTHERN PLAINS.
WET WEATHER ALSO LIKELY OVER THE NEXT FEW DAYS ACROSS NEARLY ALL
OF FLORIDA INTO SOUTHERN GEORGIA AS AN UPPER LEVEL LOW SITS ACROSS
THE GULF OF MEXICO AND PUMPS ABOVE AVERAGE MOISTURE VALUES
NORTHWARD. THESE HEAVY RAINS MAY PRODUCE ISOLATED AREAS OF FLASH
FLOODING, ESPECIALLY IN URBANIZED REGIONS.
ORAVEC
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