608
FXUS01 KWBC 042006
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT MON AUG 04 2025
VALID 00Z TUE AUG 05 2025 - 00Z THU AUG 07 2025
...A SLIGHT RISK OF EXCESSIVE RAINFALL CONTINUES ACROSS INTERIOR
SOUTHEAST THROUGH TUESDAY, WITH A MARGINAL RISK SPREADING NORTH
INTO THE MID-ATLANTIC ON WEDNESDAY...
...ROUNDS OF STRONG TO SEVERE THUNDERSTORMS EXPECTED TO MOVE
ACROSS THE NORTHERN PLAINS THROUGH TUESDAY, REACHING INTO THE
UPPER MIDWEST ON WEDNESDAY...
...AIR QUALITY ALERTS FROM THE UPPER MIDWEST TO THE GREAT LAKES
AND INTO MUCH OF THE NORTHEAST...
...EXTREME HEAT WATCHES AND EXTREME HEAT WARNINGS ACROSS THE
DESERT SOUTHWEST AND INTO ARIZONA...
A LARGE DOME OF COOL AIR WILL CONTINUE TO PROVIDE COOLER THAN
NORMAL CONDITIONS FOR EARLY AUGUST FROM THE GREAT PLAINS TO A GOOD
PORTION OF THE EASTERN U.S. ESPECIALLY THE INTERIOR SOUTHEAST
THROUGH THE NEXT COUPLE OF DAYS. THE SOUTHERN BOUNDARY OF THIS
COOL DOME WILL REMAIN NEARLY STATIONARY WITH ROUNDS OF MODERATE TO
HEAVY RAIN AND EMBEDDED THUNDERSTORMS, LEADING TO A SLIGHT RISK OF
EXCESSIVE RAINFALL FROM FLORIDA PANHANDLE NORTHWARD INTO THE
INTERIOR SOUTHEAST. A SLOW-MOVING UPPER-LEVEL TROUGH ACROSS THE
EAST-CENTRAL U.S. WILL TEND TO LIFT THE RAIN SLOWLY NORTHEASTWARD
UP INTO THE MID-ATLANTIC REGION BY WEDNESDAY. SCATTERED HEAVY
SHOWERS AND EMBEDDED THUNDERSTORMS ARE EXPECTED TO RAISE A
MARGINAL RISK OF EXCESSIVE RAINFALL FROM THE FLORIDA PANHANDLE UP
INTO THE SOUTHERN VIRGINIA ON WEDNESDAY.
MEANWHILE, SCATTERED THUNDERSTORMS ACROSS THE INTERIOR PACIFIC
NORTHWEST INTO THE NORTHERN ROCKIES ARE BECOMING MORE WIDESPREAD
AS AN UPPER-LEVEL TROUGH FROM THE PACIFIC PUSHES ONSHORE. A ROUND
OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED TO IMPACT THE
NORTHERN AND CENTRAL HIGH PLAINS THIS EVENING AND TONIGHT. BY
TUESDAY, A LOW PRESSURE WAVE IS FORECAST TO DEVELOP OVER THE
NORTHERN HIGH PLAINS. THIS WAVE WILL TRIGGER ADDITIONAL ROUNDS OF
STRONG THUNDERSTORMS ACROSS THE NORTHERN PLAINS ON TUESDAY,
REACHING INTO THE UPPER MIDWEST ON WEDNESDAY NEAR AND AHEAD OF A
WARM FRONT LIFTING NORTHEASTWARD.
FOR THE REMAINDER OF THE WESTERN U.S., EXTREME HEAT WATCHES AND
WARNINGS REMAIN IN EFFECT FOR HIGH TEMPERATURES EXCEEDING 110
DEGREES ACROSS THE DESERT SOUTHWEST AND SOUTHERN ARIZONA. OVER
THE GREAT BASIN TO THE FOUR CORNERS, ELEVATED TO CRITICAL FIRE
WEATHER DANGER IS ANTICIPATED THROUGH THE NEXT COUPLE OF DAYS WITH
THE ARRIVAL OF THE AFOREMENTIONED COLD FRONT WHICH IS FORECAST TO
STALL ACROSS THE GREAT BASIN. ACROSS THE UPPER MIDWEST INTO THE
GREAT LAKES AS WELL AS MUCH OF THE NORTHEAST, SMOKE FROM CANADIAN
WILDFIRES HAS CONTINUED TO PROMPT AIR QUALITY ALERTS, WITH HIGH
TEMPERATURES ABOVE NORMAL INTO THE MID AND UPPER 80S THROUGH THE
NEXT COUPLE OF DAYS. FOR INFORMATION ON STAYING COOL AND SAFE,
VISIT WWW.WEATHER.GOV/SAFETY/HEAT. AS TEMPERATURES RISE, LIMIT
OUTDOOR ACTIVITY, STAY HYDRATED, AND ENSURE ACCESS TO
AIR-CONDITIONING AND OTHER COOLING AREAS.
KONG
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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