575
FXUS01 KWBC 062011
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
410 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 WITH 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 ON THURSDAY. GUIDANCE IS A BIT UNCERTAIN
REGARDING THE EVOLUTION OF THE SYNOPTIC PATTERN OVER THE EAST ON
FRIDAY. SOME MODELS SUGGEST A SPLITTING OF ENERGY AND SOME MODELS
SUGGESTING AN AMPLIFICATION OF THE UPPER TROUGH OVER THE EAST. THE
RESULT OF THIS IS A DISPERSED PICTURE OF WHERE THE AXIS OF
HEAVIEST PRECIP WILL OCCUR ON FRIDAY. THE CURRENT MEAN SOLUTION IS
FOR SOME SPLITTING WHICH WILL RESULT IN SCATTERED AREAS OF SHOWERS
AND THUNDERSTORMS ACROSS THE EAST COAST WITH SOME PARTS OF THE
INTERIOR NORTHEAST AND THE NORTHERN FLORIDA ATLANTIC COAST
POTENTIALLY RECEIVING HEAVY RAINFALL.
THE SLOWLY APPROACHING TROUGH AND SURFACE COLD FRONT MOVING
THROUGH THE MIDWEST WILL CONTINUE DRAWING UP ANOMALOUS WARMTH FROM
THE SOUTH INTO THE EAST COAST THROUGH THURSDAY. HIGH TEMPERATURES
IN THE 80S AND 90S WILL BE 10-20 DEGREES ABOVE AVERAGE FOR THE
NORTHEAST AND MID-ATLANTIC. MEANWHILE, 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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