394
FXUS01 KWBC 180709
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
308 AM EDT SAT APR 18 2026
VALID 12Z SAT APR 18 2026 - 12Z MON APR 20 2026
...WIDESPREAD SHOWERS AND THUNDERSTORMS EXPECTED FROM THE
NORTHEAST TO THE GULF COAST SATURDAY WITH A RISK OF SEVERE WEATHER
AND ISOLATED FLASH FLOODING...
...DRY AND GUSTY POST-FRONTAL CONDITIONS WILL LEAD TO A FIRE
WEATHER THREAT OVER PORTIONS OF THE CENTRAL AND SOUTHERN HIGH
PLAINS THIS WEEKEND...
...SWEEPING COLD FRONT BRINGING A DRAMATIC COOL DOWN ACROSS THE
CENTRAL TO EASTERN U.S. THIS WEEKEND FOLLOWING A WEEK OF
UNSEASONABLY WARM TEMPERATURES...
WIDESPREAD SHOWERS AND THUNDERSTORMS WILL CONTINUE AHEAD OF A COLD
FRONT TODAY (SATURDAY) PUSHING EASTWARD THROUGH THE INTERIOR
NORTHEAST SOUTHWEST THROUGH THE OHIO/TENNESSEE/LOWER MISSISSIPPI
VALLEYS AND INTO TEXAS. STRONGER WIND FIELDS ALOFT WITH AN
APPROACHING UPPER-TROUGH OVER PORTIONS OF THE LOWER GREAT LAKES
INTO THE UPPER OHIO VALLEY WILL LEAD TO SUFFICIENT SHEAR FOR MORE
ROBUST THUNDERSTORMS CAPABLE OF SEVERE WEATHER. THE STORM
PREDICTION CENTER (SPC) HAS MAINTAINED A SLIGHT RISK (LEVEL 2/5)
MOSTLY FOR THE THREAT OF DAMAGING WIND GUSTS, BUT SOME LARGE HAIL
AND A TORNADO ARE ALSO POSSIBLE. IN ADDITION, AN ISOLATED FLASH
FLOOD RISK WILL EXIST AS WELL, BOTH WITH THESE MORE INTENSE STORMS
MOVING THROUGH THE LOWER GREAT LAKES AS WELL AS FURTHER SOUTH
ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY TO WESTERN GULF
COAST WHERE DEEPER GULF MOISTURE WILL BE PRESENT FOR HEAVIER
RAINFALL. THE STORMS WILL REACH THE EAST COAST OVERNIGHT SATURDAY
AND INTO EARLY SUNDAY MORNING, WITH MOST LOCATIONS DRYING OUT BY
MID-DAY AS THE FRONT CLEARS THE COAST. A WINTRY MIX WILL BE
POSSIBLE FOR HIGHER ELEVATIONS OF THE INTERIOR NORTHEAST AS THE
COLD FRONT PASSES THROUGH, THOUGH ANY ACCUMULATIONS SHOULD REMAIN
VERY LIGHT AND LIMITED. THE FRONT IS EXPECTED TO SLOW AND STALL IN
VICINITY OF SOUTH TEXAS, WHERE THUNDERSTORMS WILL CONTINUE
THROUGHOUT THE DAY AND LIKELY INTO MONDAY AS WELL, POSING AN
ISOLATED FLASH FLOOD RISK.
AN APPROACHING PACIFIC SYSTEM WILL BEGIN TO BRING SOME SHOWERS TO
THE COASTAL PACIFIC NORTHWEST SUNDAY BEFORE SPREADING SOUTHWARD
TOWARDS NORTHERN CALIFORNIA BY EARLY MONDAY. PRECIPITATION CHANCES
SHOULD RAMP UP INTO THE DAY MONDAY WITH SOME ISOLATED FLOODING
POSSIBLE. GUSTY, DRY POST-FRONTAL CONDITIONS ACROSS PORTIONS OF
THE CENTRAL/SOUTHERN PLAINS HAVE PROMPTED A CRITICAL RISK OF FIRE
WEATHER (LEVEL 2/3) FROM THE SPC FOR CENTRAL/WESTERN NEBRASKA
TODAY AND SOUTHWEST KANSAS, SOUTHEAST COLORADO, NORTHEAST NEW
MEXICO, AND THE OKLAHOMA/TEXAS PANHANDLES SUNDAY.
THE NOTED COLD FRONT WILL CONTINUE TO BRING A DRAMATIC COOL DOWN
TO MUCH OF THE CENTRAL TO EASTERN U.S. FOLLOWING A WEEK OF WELL
ABOVE AVERAGE, VERY WARM TEMPERATURES. MUCH COLDER, BELOW AVERAGE
HIGHS WILL SPREAD THROUGHOUT THE MIDWEST (40S AND 50S) AND THE
CENTRAL/SOUTHERN PLAINS (60S) TODAY. REGIONS FROM THE MISSISSIPPI
VALLEY EAST WILL SEE ONE MORE WARMER DAY WITH HIGHS IN THE 60S AND
70S IN THE OHIO VALLEY/NORTHEAST AND 80S SOUTH THROUGH THE
MID-ATLANTIC INTO THE SOUTHEAST. THE COLD FRONT WILL SWEEP THROUGH
MOST REGIONS BY SUNDAY MORNING DROPPING HIGH TEMPERATURES INTO THE
40S AND 50S FOR THE NORTHEAST, 50S AND 60S THROUGH THE
MID-ATLANTIC AND OHIO VALLEY, AND 60S AND LOW 70S INTO THE
SOUTHEAST. WARMER TEMPERATURES IN THE 80S WILL HOLD OUT A BIT
LONGER ALONG THE SOUTHEAST ATLANTIC COAST INTO FLORIDA SUNDAY
BEFORE HIGHS DROP INTO THE 70S MONDAY. MEANWHILE, A WARM-UP WILL
COMMENCE ACROSS THE WESTERN U.S. AS AN UPPER-RIDGE BUILDS OVER THE
REGION. FORECAST HIGHS ACROSS THE INTERIOR WEST WILL JUMP FROM THE
50S AND 60S TODAY INTO THE 60S AND 70S SUNDAY. WELL ABOVE AVERAGE
HIGHS WILL GRADUALLY SPREAD INTO THE NORTHERN/CENTRAL PLAINS AS
WELL WITH HIGHS REACHING INTO THE 80S FOR SOME LOCATIONS BY
MONDAY. THE WEST COAST WILL REMAIN MORE TEMPERATE WITH HIGHS
HOLDING IN THE 60S IN THE PACIFIC NORTHWEST AND 60S AND 70S IN
CALIFORNIA THIS WEEKEND, WHILE THE DESERT SOUTHWEST WILL SEE HIGHS
INTO THE LOW 90S.
PUTNAM
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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