097
FXUS01 KWBC 291913
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
313 PM EDT SAT JUN 29 2024
VALID 00Z SUN JUN 30 2024 - 00Z TUE JUL 02 2024
...SEVERE THUNDERSTORM AND HEAVY RAIN THREAT FOR THE EAST COAST ON
SUNDAY...
...SHOWERS AND THUNDERSTORMS FOR THE FOUR CORNERS/SOUTHWEST OVER
THE NEXT FEW DAYS; WET WEATHER RETURNS TO THE UPPER MIDWEST BY
MONDAY...
...DANGEROUSLY HOT CONDITIONS WILL CONTINUE FOR THE SOUTHEAST THIS
WEEKEND...
A COLD FRONT MOVING THROUGH THE GREAT LAKES THIS EVENING WILL
BRING IN COOLER AND DRIER AIR TO THE REGION FOR SUNDAY, WITH
SHOWERS AND THUNDERSTORMS OUT AHEAD OF IT OVER MUCH OF THE
NORTHEAST, OHIO VALLEY, AND MID-ATLANTIC. BY SUNDAY, THE FRONT
WILL PUSH CLOSER TO THE I-95 CORRIDOR, FOCUSING THE CHANCE FOR
THUNDERSTORMS (SOME SEVERE PER THE STORM PREDICTION CENTER) TOWARD
THE COAST IN THE NORTHEAST, BUT ALSO INTO THE MID-ATLANTIC AND
CENTRAL/SOUTHERN APPALACHIANS. ISOLATED FLASH FLOODING IS POSSIBLE
IN SOME AREAS THAT EXPERIENCE HEAVIER RAINFALL IN A SHORT AMOUNT
OF TIME. FARTHER SOUTH, THE FRONTAL BOUNDARY WILL SLIP INTO THE
MID-SOUTH AND TN VALLEY, WITH SCATTERED SHOWERS AND THUNDERSTORMS
ON SUNDAY. FARTHER WEST, TAIL-END OF THE SAME FRONTAL BOUNDARY
WILL HELP FIRE OFF MAINLY AFTERNOON SHOWERS AND STORMS OVER THE
FOUR CORNERS REGION AND ACROSS MUCH OF THE ROCKIES. FLASH FLOODING
IS POSSIBLE IN SOME AREAS, ESPECIALLY IN MORE SENSITIVE REGIONS
WITH STEEP TERRAIN.
OVER THE NORTHERN ROCKIES, A SYSTEM WILL BRING AN EXPANDING AREA
OF RAIN AND THUNDERSTORMS TONIGHT INTO SUNDAY, MOVING INTO EASTERN
MONTANA WHERE SOME SEVERE WEATHER IS POSSIBLE. BY LATE SUNDAY INTO
MONDAY, POTENTIALLY HEAVIER RAINFALL WILL PUSH INTO THE UPPER
MIDWEST/CORN BELT WHERE FLASH FLOODING WILL BE POSSIBLE OVER AREAS
THAT HAVE SEEN WELL ABOVE NORMAL RAINFALL RECENTLY. ISOLATED
FLASH, URBAN, AND SMALL STREAM FLOODING ALONG WITH NEW AND RENEWED
RIVER RISES ARE POSSIBLE PER THE NATIONAL WATER CENTER.
TEMPERATURES WILL BE QUITE VARIABLE ACROSS THE LOWER 48 OVER THE
NEXT TWO DAYS. MUCH OF THE NORTHERN TIER -- FROM THE NORTHERN
PLAINS EASTWARD TO THE GREAT LAKES -- WILL SEE BELOW NORMAL
TEMPERATURES ON SUNDAY INTO MONDAY WITH HIGHS GENERALLY ONLY IN
THE 70S. AHEAD OF THE FRONT TO THE EAST, WARM/HOT TEMPERATURES IN
THE 80S/90S ON SUNDAY NEAR THE EAST COAST WILL BE REPLACED BY
70S/80S ON MONDAY. THE HOTTEST TEMPERATURES WILL BE LOCATED OVER
MUCH OF THE SOUTHERN PLAINS TO THE SOUTHEAST, AS WELL AS INTO THE
DESERT SOUTHWEST. THOUGH DAYTIME MAXIMUM TEMPERATURES MAY NOT
BREAK DAILY RECORDS, OVERNIGHT LOW TEMPERATURES WILL REMAIN QUITE
WARM (ONLY IN THE 70S TO AROUND 80 DEGREES) DUE TO HIGH LEVELS OF
HUMIDITY. THIS WILL BE REFLECTED DURING THE DAY BY HIGH HEAT
INDICES IN THE LOW 100S. BY MONDAY, MUCH OF INTERIOR CALIFORNIA
WILL START TO SEE TEMPERATURES NEAR AND OVER 100 DEGREES, AS WILL
PARTS OF THE CENTRAL PLAINS.
FRACASSO
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