666
FXUS01 KWBC 230814
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT THU OCT 23 2025
VALID 12Z THU OCT 23 2025 - 12Z SAT OCT 25 2025
...HEAVY RAIN AND SEVERE WEATHER THREATS EMERGE AND EXPAND ACROSS
THE SOUTH PLAINS TO THE ARKLATEX THURSDAY NIGHT THROUGH SATURDAY
MORNING...
...UNSETTLED WEATHER WITH LOCALLY HEAVY RAIN REACHING THE PACIFIC
NORTHWEST ON FRIDAY FOLLOWED BY ANOTHER ROUND EARLY SATURDAY...
...CHILLY AND SHOWERY WEATHER ACROSS THE GREAT LAKES WILL
GRADUALLY TAPER OFF THROUGH THE NEXT COUPLE OF DAYS...
A LOW PRESSURE SYSTEM CONTAINING MULTIPLE VORTICES CONTINUES TO BE
THE IMPETUS FOR BRINGING UNSETTLED WEATHER ACROSS THE GREAT LAKES
INTO THE NORTHEAST. THIS SYSTEM WILL CONTINUE TO TAKE ITS TIME
EXITING INTO EASTERN CANADA. SHOWERY WEATHER ACROSS THE GREAT
LAKES WILL STILL BE COMMON TODAY BUT THEY ARE EXPECTED TO BE LESS
NUMEROUS THAN YESTERDAY. A COUPLE OF THUNDERSTORMS CANNOT BE
RULED OUT EITHER. AS THE SYSTEM SLOWLY EDGES AWAY INTO EASTERN
CANADA, THESE SHOWERS ARE EXPECTED TO GRADUALLY TAPER OFF FROM
WEST TO EAST LATER ON FRIDAY INTO SATURDAY MORNING. MEANWHILE,
CHILLIER AND DRIER WEATHER ALONG WITH GUSTY WINDS WILL EXPAND FROM
THE MIDWEST AND OHIO VALLEY INTO THE MID-ATLANTIC AS A HIGH
PRESSURE RIDGE BUILDS IN FROM THE NORTHERN PLAINS.
ACROSS THE NORTHWEST, HEAVY RAINFALL IS FORECAST TO APPROACH THE
AREA FRIDAY MORNING AHEAD OF THE ARRIVAL OF THE MAIN PACIFIC
FRONT. THE FIRST SIGNIFICANT ROUND OF RAINFALL IS FORECAST TO
ARRIVE ON FRIDAY. THIS WILL BE FOLLOWED BY ANOTHER ROUND ARRIVING
SATURDAY MORNING WITH LOCALLY HEAVY RAIN POSSIBLE IN BOTH ROUNDS
OF RAIN ESPECIALLY ALONG THE COAST OF THE PACIFIC NORTHWEST.
FARTHER SOUTH, SCATTERED THUNDERSTORMS TIED TO A SHORTWAVE TROUGH
ARE MOVING ACROSS THE GREAT BASIN AND FOUR CORNERS TODAY. THE
RAIN WILL BE LARGELY BENEFICIAL AS THIS REGION REMAINS UNDER
DROUGHT CONDITIONS. BY TONIGHT INTO FRIDAY MORNING, THE SHORTWAVE
TROUGH WILL BEGIN HEADING TOWARD THE SOUTHERN HIGH PLAINS. THIS
WILL LEAD TO SHOWERS AND THUNDERSTORMS DEVELOPING OVER THE
SOUTH-CENTRAL PLAINS AHEAD OF A WARM FRONT AND A DEVELOPING
SURFACE LOW. THE RAIN WILL THEN EXPAND ACROSS THE REGION WITH AN
INCREASING THREAT OF HEAVY RAINFALL FRIDAY MORNING. BY LATER ON
FRIDAY INTO SATURDAY MORNING, MUCH OF TEXAS AND OKLAHOMA WILL
LIKELY SEE SHOWERS AND THUNDERSTORMS BECOMING MORE WIDESPREAD AS
ADDITIONAL SHORTWAVE IMPULSES INTERACT WITH MOISTURE RETURNING
FROM THE WESTERN GULF. BOTH WPC AND THE STORM PREDICTION CENTER
HAVE RESPECTIVELY ISSUED A SLIGHT RISK FOR FLASH FLOODING AND
SEVERE THUNDERSTORMS TO OCCUR IN THIS GENERAL AREA FROM THURSDAY
NIGHT THROUGH MUCH OF FRIDAY. BY SATURDAY MORNING, THE HEAVY RAIN
THREAT IS EXPECTED TO SHIFT EAST TOWARD THE ARKLATEX AND THE
WESTERN GULF COAST FROM UPPER TEXAS COAST TO SOUTHWESTERN
LOUISIANA.
KONG
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page