161
FXUS01 KWBC 051942
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
341 PM EDT MON JUN 05 2023
VALID 00Z TUE JUN 06 2023 - 00Z THU JUN 08 2023
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF THE
SOUTHERN HIGH PLAINS THROUGH WEDNESDAY...
...MUCH COOLER THAN NORMAL OVER MUCH OF CALIFORNIA/SOUTHWEST AND
THE NORTHEAST...
...PERIODS OF SMOKY CONDITIONS AND POOR AIR QUALITY AROUND THE
GREAT LAKES...
A RATHER STRUNG-OUT OMEGA BLOCK PATTERN WILL FEATURE AN UPPER LOW
MOVING INTO SOUTHERN CALIFORNIA WITH ANOTHER JUST OFFSHORE NEW
ENGLAND WHILE AN UPPER HIGH MEANDERS OVER SOUTHERN CENTRAL CANADA
INTO THE NORTHERN PLAINS. THIS ORIENTATION WILL ACT TO MAINTAIN
COOLER THAN NORMAL TEMPERATURES OVER MUCH OF THE SOUTHWEST AND
NORTHEAST FOR THE NEXT COUPLE OF DAYS WHILE MUCH WARMER THAN
NORMAL TEMPERATURES ARE FAVORED OVER THE PACIFIC NORTHWEST INTO
THE PLAINS. THE NORTHEASTERLY FLOW OUT OF SOUTHEASTERN CANADA WILL
BE RESPONSIBLE FOR BRINGING IN SMOKY/HAZY AND POOR AIR QUALITY
CONDITIONS TO PARTS OF THE NORTHEAST AND GREAT LAKES THIS
AFTERNOON/EVENING.
ACROSS PARTS OF THE SOUTHERN HIGH PLAINS (ESPECIALLY NEW MEXICO
INTO THE TEXAS PANHANDLE), ADEQUATE MOISTURE AND AFTERNOON
INSTABILITY MAY YIELD LOCALLY HEAVY RAIN WHERE IT HAS BEEN QUITE
WET RECENTLY, WHICH COULD CAUSE SOME FLOODING CONCERNS. WPC HAS
OUTLINED A SLIGHT RISK OF EXCESSIVE RAINFALL FOR THIS REGION
THROUGH WEDNESDAY, WHICH INCLUDES SOME BURN SCAR AREAS. MORE
ISOLATED TO SCATTERED SHOWER AND STORMS ARE FORECAST FOR PORTIONS
OF THE ROCKIES AND INTO THE SIERRA AS WELL.
THE STALLED SYSTEM OFF NEW ENGLAND WILL BRING IN BOUTS OF RAINFALL
TO PARTS OF THE NORTHEAST OVER THE NEXT COUPLE OF DAYS AS IT SPINS
JUST OFFSHORE. A FRONTAL BOUNDARY ON ITS SOUTHWEST SIDE WILL BE
REINFORCED FROM THE NORTH AS COOLER AIR WRAPS ALL THE WAY AROUND
THE SYSTEM, BRINGING IN DRIER THAN NORMAL AIR AS WELL TO AREAS OF
THE MID-ATLANTIC AND INTO THE SOUTHEAST WITH DEW POINTS INTO THE
40S (OH RIVER VALLEY) TO MID 60S (SOUTHEAST AWAY FROM THE COAST).
OVER THE UPPER MIDWEST/CORN BELT, SCATTERED SHOWERS AND SOME
THUNDERSTORMS ARE POSSIBLE THROUGH WEDNESDAY AS WELL.
FRACASSO
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