962
FXUS01 KWBC 122027
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
427 PM EDT TUE SEP 12 2023
VALID 00Z WED SEP 13 2023 - 00Z FRI SEP 15 2023
...COOL, WET WEATHER WITH HEAVY RAINFALL AND FLOODING POSSIBLE
FROM THE SOUTHWEST TO THE SOUTHERN PLAINS...
...MORE HEAVY RAIN AND POSSIBLE FLOODING EXPECTED ACROSS THE
NORTHEAST....
...DANGEROUS SURF AND RIP CURRENT CONDITIONS DEVELOPING ALONG THE
EAST COAST...
..FROST ADVISORIES IN EFFECT OVER PORTIONS OF THE UPPER MIDWEST
REMNANT MOISTURE FROM JOVA WILL CONTINUE TO SPREAD ACROSS THE
SOUTHWEST AND SOUTHERN PLAINS OVER THE NEXT COUPLE OF DAYS.
SHORTWAVE ENERGY SWINGING THROUGH THE INTERMOUNTAIN WEST AND A
SURFACE FRONT ORIENTED NORTH-SOUTH ACROSS THE SOUTHERN HIGH PLAINS
WILL INTERACT WITH THE TROPICAL MOISTURE TO PRODUCE SCATTERED
SHOWERS AND THUNDERSTORM ACTIVITY ACROSS THE REGION. SOME
INSTANCES OF FLASH FLOODING ARE POSSIBLE FROM EASTERN ARIZONA INTO
MUCH OF CENTRAL NEW MEXICO TONIGHT, WHERE A SLIGHT RISK OF
EXCESSIVE RAINFALL IS IN EFFECT. THE GREATEST THREAT OF FLASH
FLOODING SHIFTS EAST INTO EASTERN NEW MEXICO AND WESTERN/CENTRAL
TEXAS WHERE A STATIONARY FRONT WILL ACT AS A FOCUS FOR CONVECTION
AND POTENTIALLY INTENSE RAINFALL RATES. ANOTHER SLIGHT RISK OF
EXCESSIVE RAINFALL LEADING TO FLASH FLOODING IS IN EFFECT FOR THAT
AREA ON WEDNESDAY AND CONTINUING INTO THURSDAY. ALL OF THE
CLOUDINESS IN THE AREA WILL IMPACT DAYTIME HIGH TEMPERATURES BY
DROPPING THEM TO WELL BELOW AVERAGE LEVELS.
A SLOW MOVING COLD FRONT WILL FOCUS SHOWERS AND THUNDERSTORMS
ACROSS THE EASTERN THIRD OF THE COUNTRY THROUGH THURSDAY. THIS
WILL BE SUPPORTED BY AMPLIFIED UPPER-LEVEL TROUGHING MOVING
THROUGH THE GREAT LAKES. FLASH FLOODING THREATS WILL INCREASE OVER
THE NEXT DAY OR SO IN THE NORTHEAST, WITH A MARGINAL RISK IN
EFFECT TONIGHT FOLLOWED BY A SLIGHT RISK OF EXCESSIVE RAINFALL IN
EFFECT FOR WEDNESDAY STRETCHING FROM NEW JERSEY UP INTO NEW
HAMPSHIRE. CHILLY AIR WILL RUSH SOUTH INTO THE UPPER MIDWEST AND
GREAT LAKES ON THE BACKSIDE OF THIS COLD FRONT. LOWS IN THE 30S
OVER PARTS OF MINNESOTA AND WISCONSIN WEDNESDAY MORNING PROMPTED
THE ISSUANCE OF FROST ADVISORIES FOR NORTHERN PORTIONS OF THE
STATE. THERE IS A MODERATE-TO-HIGH RISK OF RIP CURRENTS ALONG THE
EAST COAST AS HURRICANE LEE APPROACHES.
KEBEDE
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