724
FXUS01 KWBC 210737
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
337 AM EDT SAT JUN 21 2025
VALID 12Z SAT JUN 21 2025 - 12Z MON JUN 23 2025
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE GREAT LAKES TODAY, THEN UPPER MIDWEST AND NORTHERN/CENTRAL
PLAINS ON SUNDAY...
...EXCESSIVE RAINFALL CONCERNS EMERGE OVER THE SOUTHERN HIGH
PLAINS ON SUNDAY...
...MAJOR TO EXTREME HEAT RISK LIKELY TO EXPAND FROM CENTRAL TO
EASTERN U.S....
...THERE IS A CRITICAL RISK OF FIRE WEATHER OVER PARTS OF THE
GREAT BASIN/FOUR CORNERS TODAY...
SHORTWAVE ENERGY RIDING OVER TOP OF AN UPPER RIDGE WILL PRODUCE
SCATTERED TO ISOLATED THUNDERSTORMS ACROSS THE GREAT LAKES,
INTERIOR NORTHEAST AND UPPER MIDWEST TODAY. THE STORM PREDICTION
CENTER ISSUED A SLIGHT RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS
FOR PORTIONS OF NORTHEASTERN WISCONSIN THROUGH THE UP OF MICHIGAN
TODAY AND INTO UPSTATE NEW YORK AND NEW ENGLAND LATE TONIGHT. A
COMPLEX OF STORMS, WHICH ORIGINATED IN NORTH DAKOTA FRIDAY NIGHT,
WILL MOVE THROUGH THE AFOREMENTIONED AREAS. SOME LOCALIZED FLASH
FLOODING IS POSSIBLE FROM THESE STORMS. ELSEWHERE, DRYLINE STORMS
COULD PRODUCE SOME SCATTERED TO ISOLATED FLASH FLOODING OVER PARTS
OF EASTERN NEW MEXICO AND WESTERN TEXAS ON SUNDAY. A SLIGHT RISK
(AT LEAST 15%) OF EXCESSIVE RAINFALL LEADING TO FLASH FLOODING IS
IN EFFECT FOR THOSE AREAS EARLY NEXT WEEK.
TROUGHING IN THE WEST WILL GENERATE WELL BELOW AVERAGE
TEMPERATURES ACROSS THE REGION THIS WEEKEND. FROST ADVISORIES AND
FREEZE WARNINGS ARE IN EFFECT FOR PARTS NORTHERN CALIFORNIA AND
NORTHEASTERN NEVADA RESPECTIVELY FOR TONIGHT. THE LOW TEMPERATURES
AND SHALLOW PACIFIC MOISTURE AVAILABLE WILL PRODUCE SOME MINOR TO
MODERATELY IMPACTFUL SNOWFALL OVER THE HIGHER ELEVATIONS OF THE
NORTHERN ROCKIES THROUGH SUNDAY. THERE IS A CRITICAL RISK OF FIRES
AS WELL AS RED FLAG WARNINGS DUE TO DRY AND WINDY CONDITIONS IN
PARTS OF THE GREAT BASIN AND FOUR CORNERS REGION TODAY.
A STRONG UPPER RIDGE IS EMERGING OVER THE EASTERN HALF OF THE
COUNTRY. WIDESPREAD RECORD MAX AND MIN TEMPERATURES ARE LIKELY TO
BE TIED/BROKEN FROM THE UPPER/MIDDLE MISSISSIPPI VALLEY TO THE
NORTHEAST/MID-ATLANTIC OVER THE NEXT SEVERAL DAYS. MAJOR TO
EXTREME HEAT RISK WILL SPREAD INTO THE MIDWEST AND EAST COAST ON
SUNDAY, WHERE ANYONE WITHOUT EFFECTIVE COOLING AND/OR ADEQUATE
HYDRATION WILL BE AFFECTED. LITTLE TO NO OVERNIGHT RELIEF WILL
ONLY EXACERBATE HEAT IMPACTS.
KEBEDE
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page