591
FXUS01 KWBC 220801
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT MON JUN 22 2026
VALID 12Z MON JUN 22 2026 - 12Z WED JUN 24 2026
...SCATTERED HEAVY RAINFALL AND SEVERE WEATHER POSSIBLE TODAY,
STRETCHING FROM THE NORTHEAST TO THE HIGH PLAINS; UNSETTLED
WEATHER CONTINUES IN THE CENTRAL U.S. THROUGH MIDWEEK...
...FIRST FEW DAYS OF SUMMER TO BRING MUCH ABOVE AVERAGE
TEMPERATURES ACROSS THE WEST COAST, GREAT BASIN, SOUTHWEST,
ROCKIES AND ALONG THE GULF COAST AND SOUTHEAST; COOLER THAN
AVERAGE TEMPERATURES ON TAP FOR THE NORTHERN/CENTRAL PLAINS, GREAT
LAKES AND INTO THE NORTHEAST...
AN ACTIVE PATTERN FOR HEAVY RAINFALL AND SEVERE WEATHER WILL
CONTINUE THROUGH THE FIRST WEEK OF SUMMER AS TWO FRONTAL SYSTEMS
MIGRATE ACROSS THE CENTRAL AND EASTERN U.S. OVER THE NEXT 48
HOURS. FOR TODAY, THE THREAT OF SCATTERED HEAVY RAINFALL AND
SEVERE WEATHER LATER THIS AFTERNOON WILL STRETCH FROM NEW YORK TO
WYOMING AHEAD OF A COLD FRONT AS IT TAPS INTO A VERY MOIST AND
UNSTABLE AIRMASS DRAWN NORTHWARD. MUCH OF THE ACTIVITY IN THE EAST
SHOULD ERODE AN EVENTUAL FRONTAL PASSAGE TONIGHT, ALTHOUGH THE
THREAT MAY CONTINUE INTO THE OVERNIGHT HOURS IN THE PLAINS AND
MISSISSIPPI VALLEY AS STORMS CONGEAL INTO ORGANIZED COMPLEXES. THE
PASSAGE OF THE COLD FRONT WILL END THE THREAT OF ORGANIZED SEVERE
STORMS AND HEAVY RAINFALL IN THE EASTERN U.S. BY TOMORROW, THOUGH
UNSETTLED WEATHER WILL LINGER IN THE HEARTLAND THROUGH MIDWEEK
WITH DAILY CHANCES OF SCATTERED FLASH FLOODING AND SEVERE WEATHER.
THE FIRST FULL DAYS OF SUMMER 2026 WILL BRING MUCH ABOVE AVERAGE
TEMPERATURES TO ALL OF THE WESTERN U.S. FROM THE WEST COAST,
THROUGH THE GREAT BASIN, SOUTHWEST AND ROCKIES, EXTENDING EASTWARD
ACROSS TEXAS, THE GULF COAST, SOUTHEAST AND FLORIDA. THE HOTTEST
TEMPERATURES OVER 100 DEGREES EXPECTED FROM WEST AND SOUTHWEST
TEXAS, INTO THE SOUTHWEST AND INTERIOR CALIFORNIA VALLEYS, WHILE
LOW TO MID 90S EXPECTED ELSEWHERE ACROSS THE ABOVE MENTIONED
REGIONS. HEAT ADVISORIES REMAIN IN EFFECT ACROSS THE PACIFIC
NORTHWEST AND SOUTHERN PLAINS, AFFECTING OVER 21 MILLION PEOPLE.
IN CONTRAST, COOLER THAN AVERAGE TEMPERATURES ARE EXPECTED TO
STRETCH ACROSS THE NORTHERN AND CENTRAL PLAINS, GREAT LAKES AND
INTO THE NORTHEAST OVER THE NEXT FEW DAYS.
ASHERMAN/ORAVEC
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