853
FXUS01 KWBC 062001
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT WED SEP 06 2023
VALID 00Z THU SEP 07 2023 - 00Z SAT SEP 09 2023
...SEVERE WEATHER POSSIBLE ACROSS PORTIONS OF THE NORTHEAST AND
MID-ATLANTIC ON THURSDAY...
...EXCESSIVE HEAT POTENTIAL FOR PARTS OF THE DESERT SOUTHWEST,
SOUTHERN PLAINS, LOWER MISSISSIPPI VALLEY, NORTHEAST AND
MID-ATLANTIC...
...CANADIAN WILDFIRE SMOKE WILL IMPACT MUCH OF THE
NORTHERN/CENTRAL PLAINS AND PARTS OF THE LOWER MISSOURI RIVER
VALLEY...
A SLOW MOVING COLD FRONT WILL BE THE FOCUS FOR SCATTERED SHOWERS
AND THUNDERSTORMS FROM THE MIDWEST DOWN TO THE SOUTHERN PLAINS
TONIGHT. THE CONVECTIVE ACTIVITY MOVES INTO THE MID-ATLANTIC AND
NORTHEAST ON THURSDAY WHERE SOME AREAS, PARTICULARLY OVER THE
INTERIOR NORTHEAST AND NORTHERN MID-ATLANTIC MAY EXPERIENCE SEVERE
THUNDERSTORMS. THE STORM PREDICTION CENTER ISSUED A SLIGHT RISK OF
SEVERE THUNDERSTORMS FOR THIS AREA ON THURSDAY DUE TO THE
POTENTIAL FOR LOCALLY DAMAGING WIND GUSTS AND SOME HAIL. GUSTY
WINDS AND HAIL MAY ALSO OCCUR OVER PARTS OF THE CENTRAL/SOUTHERN
PLAINS AND ARKLATEX REGIONS. GUIDANCE IS A BIT UNCERTAIN AS TO THE
EVOLUTION OF SYNOPTIC PATTERN AS SOME MODELS SUGGEST A SPLITTING
OF ENERGIES AND SOME ATTEMPTING TO AMPLIFY THE UPPER TROUGH OVER
THE EAST COAST. THE RESULT OF THIS IS A LESS CERTAIN PICTURE OF
WHERE THE AXIS OF HEAVIEST PRECIP WILL OCCUR ON FRIDAY. THE
CURRENT MEAN SOLUTION IS FOR SOME SPLITTING WHICH WILL RESULT IN
HEAVY RAIN AND THUNDERSTORM AREAS OVER THE INTERIOR NORTHEAST AND
THE NORTHERN FLORIDA ATLANTIC COAST.
THE SLOWLY APPROACHING TROUGH AND COLD FRONT MOVING THROUGH THE
MIDWEST WILL CONTINUE DRAWING UP ANOMALOUS WARMTH FROM THE SOUTH
THROUGH THURSDAY. HIGH TEMPERATURES IN THE 80S AND 90S WILL BE
10-20 DEGREES ABOVE AVERAGE. LOWS IN THE 60S AND 70S WILL BE 15-25
DEGREES ABOVE AVERAGE AND ALLOW FOR LITTLE RELIEF FROM THE DAYTIME
HEAT, ESPECIALLY FOR THOSE WITHOUT ADEQUATE HEATING AND HYDRATION.
AN UPPER-LEVEL RIDGE WILL SUPPORT INCREASING HEAT CONCERNS IN THE
SOUTHWEST AND SOUTHERN PLAINS HEADING INTO THIS WEEKEND.
WIDESPREAD HIGH AND LOW TEMPERATURE RECORDS WILL BE TIED OR BROKEN
OVER THE NEXT COUPLE OF DAYS ACROSS THE SOUTHERN PLAINS, LOWER
MISSISSIPPI VALLEY, NORTHEAST AND MID-ATLANTIC OVER THE NEXT FEW
DAYS. CANADIAN WILDFIRE SMOKE WILL SPREAD OUT ACROSS THE
NORTHERN/CENTRAL PLAINS AND LOWER MISSISSIPPI VALLEY THROUGH
THURSDAY. AIR QUALITY ALERTS ARE IN EFFECT FOR EASTERN
WYOMING/COLORADO, MUCH OF NEBRASKA AND MINNESOTA.
KEBEDE
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