617
FXUS01 KWBC 250823
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
422 AM EDT FRI APR 25 2025
VALID 12Z FRI APR 25 2025 - 12Z SUN APR 27 2025
...SHOWERS AND THUNDERSTORMS WILL SPREAD FROM THE CENTRAL U.S.
TODAY INTO MUCH OF THE EASTERN U.S. FRIDAY NIGHT INTO SATURDAY...
...SCATTERED STRONG TO SEVERE THUNDERSTORMS PERSIST OVER THE
CENTRAL TO SOUTHERN HIGH PLAINS THROUGH THE NEXT COUPLE OF DAYS
WITH FIRE WEATHER THREAT OVER THE SOUTHERN ROCKIES...
...MUCH BELOW AVERAGE TEMPERATURES SPREADING ACROSS CALIFORNIA
INTO THE WESTERN GREAT BASIN BUT MUCH ABOVE AVERAGE TEMPERATURES
STRETCH THROUGH THE ROCKIES AND FROM THE SOUTHERN PLAINS INTO THE
EAST...
AN ACTIVE SPRING WEATHER PATTERN IS SETTING UP FOR LARGE PORTIONS
OF THE U.S. HEADING INTO THE WEEKEND. FIRST OF ALL, A LOW
PRESSURE SYSTEM IS FORECAST TO FORM ALONG A FRONT OVER THE MIDWEST
AND THEN THROUGH THE GREAT LAKES TODAY BEFORE MOVING THROUGH THE
NORTHEAST ON SATURDAY. SCATTERED SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO DEVELOP ACROSS A WIDE AREA AHEAD OF A COLD FRONT OVER
THE CENTRAL U.S. AND AFFECT MUCH OF THE PLAINS INTO THE UPPER
MISSISSIPPI VALLEY TODAY, BEFORE SPREADING EAST INTO THE GREAT
LAKES, OHIO VALLEY, MID-ATLANTIC AND NORTHEAST FRIDAY NIGHT INTO
SATURDAY. THE RAINS THAT PUSH INTO THE EAST FRIDAY NIGHT INTO
SATURDAY MAY BRING SOME RELIEF TO THE ONGOING WILD FIRES OVER NEW
JERSEY, ALONG WITH SOME RELIEF TO THE ONGOING MODERATE TO SEVERE
DROUGHT CONDITIONS FROM THE MID-ATLANTIC INTO SOUTHERN NEW
ENGLAND. BY SATURDAY AFTERNOON INTO SUNDAY, DRIER AIR FROM THE
HIGH PRESSURE SYSTEM WILL EXTEND FROM THE GREAT LAKES AND INTO THE
MID-ATLANTIC UNDER GUSTY WESTERLY WINDS BUT UPSTATE NEW YORK INTO
INTERIOR NEW ENGLAND COULD FIND RAIN CHANGING TO WET SNOW EARLY ON
SUNDAY MORNING DUE TO PROXIMITY OF THE LOW PRESSURE SYSTEM
BRINGING IN COLDER AIR FROM CANADA.
OVER THE CENTRAL TO SOUTHERN HIGH PLAINS STORMS, THE POTENTIAL OF
STRONG TO SEVERE THUNDERSTORMS WILL PERSIST FOR THE NEXT COUPLE
DAYS AS UPPER-LEVEL ENERGIES EJECTING OUT OF THE ROCKIES INTERACT
WITH A FRONT DROPPING SOUTH INTO THE CENTRAL PLAINS WHERE LARGE
HAIL IS EXPECTED TO BE THE GREATEST THREAT, AND LESSER CHANCES OF
TORNADOES AND HIGH WINDS. THIS REGION OF THE COUNTRY HAS BEEN
VERY ACTIVE OVER THE PAST WEEK WITH ANOTHER ROUND OF SHOWERS AND
THUNDERSTORMS LIKELY TO DEVELOP LATE FRIDAY AFTERNOON INTO FRIDAY
NIGHT AND SATURDAY. THIS WILL BRING THE THREAT OF ADDITIONAL
HEAVY RAINS, ISOLATED FLOODING AND SEVERE WEATHER FROM FAR
NORTHEAST NEW MEXICO, ACROSS THE TEXAS/OKLAHOMA PANHANDLE,
EASTWARD THROUGH CENTRAL TO EASTERN OKLAHOMA AND EASTERN KANSAS.
WHILE LARGE PORTIONS OF THE SOUTHERN TO CENTRAL PLAINS WILL BE
ACTIVE SHOWER AND THUNDERSTORM WISE OVER THE NEXT FEW DAYS, DRY
CONDITIONS WILL PERSIST JUST TO THE SOUTH AND WEST OF THIS FROM
SOUTHEAST ARIZONA ACROSS MUCH OF NEW MEXICO. THESE DRY
CONDITIONS, COMBINED WITH GUSTY WINDS AND LOW RELATIVE HUMIDITIES
WILL CONTINUE TO SUPPORT AN ELEVATED FIRE WEATHER THREAT OVER THE
NEXT FEW DAYS. A FIRE WEATHER THREAT WILL ALSO CONTINUE ACROSS
PORTIONS OF THE FLORIDA PENINSULA AND MID-ATLANTIC FROM THE SAME
COMBINATION OF DRY CONDITIONS AND LOW RELATIVE HUMIDITIES.
A STRONG MID TO UPPER-LEVEL LOW IS EXPECTED TO FORM TODAY OFF THE
PACIFIC NORTHWEST/NORTHERN CALIFORNIA COASTS, DROPPING
SOUTHEASTWARD INTO CENTRAL CALIFORNIA ON SATURDAY. THIS STRONG
MID TO UPPER LEVEL LOW WILL HAVE THE POTENTIAL TO PRODUCE SOME
LATE SEASON RAINS ACROSS MUCH OF CALIFORNIA, EXCEPT FOR THE
SOUTHEAST PORTION OF THE STATE. IN ADDITION, SOME MUCH BELOW
AVERAGE TEMPERATURES ARE LIKELY TO SPREAD ACROSS CALIFORNIA
BEGINNING TODAY AND CONTINUING INTO THE WEEKEND WITH SNOW EXPECTED
ALONG THE SIERRA NEVADA. HIGH TEMPERATURES ARE EXPECTED TO BE 10
TO 15 DEGREES BELOW AVERAGE TODAY ACROSS MUCH OF CALIFORNIA, WITH
THESE BELOW AVERAGE TEMPERATURES INCREASING TO 15 TO 25 DEGREES
BELOW AVERAGE ON SATURDAY, WHILE ALSO SPREADING EASTWARD INTO THE
WESTERN GREAT BASIN. THESE MUCH BELOW AVERAGE MAXIMUM AFTERNOON
TEMPERATURES MAY ALSO PRODUCE A FEW RECORD LOW HIGH TEMPERATURES
FOR SOUTHERN CALIFORNIA ON SATURDAY. IN CONTRAST TO THESE MUCH
BELOW AVERAGE TEMPERATURES, MUCH ABOVE AVERAGE TEMPERATURES ON TAP
THROUGH ALL OF THE ROCKIES TODAY AND SATURDAY, FROM THE SOUTHERN
PLAINS INTO MIDDLE TO LOWER MISSISSIPPI VALLEY, OHIO VALLEY AND
EAST TODAY, AND ALONG THE EAST COAST TO THE GULF COAST ON
SATURDAY. EVENTUALLY, COOLER WEATHER WILL PUSH SOUTH AND EASTWARD
ACROSS THE CENTRAL TO SOUTHERN PLAINS TODAY AND SATURDAY, THE
GREAT LAKES AND OHIO VALLEY ON SATURDAY AND ACROSS THE
MID-ATLANTIC INTO NEW ENGLAND BY SUNDAY IN THE WAKE OF A COLD
FRONT FORECAST TO PUSH SOUTHEASTWARD ACROSS THESE AREAS.
KONG/ORAVEC
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