513
FXUS01 KWBC 110813
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT THU APR 11 2024
VALID 12Z THU APR 11 2024 - 12Z SAT APR 13 2024
...POWERFUL STORM SYSTEM TO FOSTER HIGH WIND POTENTIAL OVER MUCH
OF THE EASTERN U.S. TODAY WITH SEVERE WEATHER, HEAVY RAIN AND
FLASH FLOOD THREATS FOR PARTS OF THE SOUTHEAST, UPPER OHIO VALLEY
AND INTO THE NORTHERN MID-ATLANTIC...
...HIGH WIND THREAT CONTINUES ACROSS THE GREAT LAKES, NORTHEAST,
AND INTO THE APPALACHIANS ON FRIDAY INTO EARLY SATURDAY AS FLASH
FLOOD THREAT WILL BE CONFINED TO NORTHERN NEW ENGLAND...
AN INTENSIFYING LOW PRESSURE SYSTEM CENTERED OVER THE MID-SOUTH
EARLY THIS MORNING IS FORECAST TO TRACK NORTHEAST TOWARD THE GREAT
LAKES THROUGH TONIGHT. THIS SYSTEM WILL PROGRESSIVELY ENGULF THE
ENTIRE EASTERN U.S. TODAY WITH WIDESPREAD MODERATE RAINFALL AND A
COUPLE AXES OF HEAVY RAIN. THE HEAVIEST RAINS WILL BE ASSOCIATED
WITH CLUSTERS OF STRONG TO SEVERE THUNDERSTORMS ACROSS THE
SOUTHEAST AHEAD OF A POTENT COLD FRONT WHERE A FEW INCHES OF RAIN
CAN BE EXPECTED. ANOTHER AREA OF HEAVY RAIN WILL BE NEAR AND
ALONG THE TRACK OF THE INTENSE LOW PRESSURE SYSTEM CENTER, FROM
THE MID-MISSISSIPPI VALLEY ACROSS THE OHIO VALLEY TOWARD THE LOWER
GREAT LAKES WHERE 2 INCHES OF RAIN CAN BE EXPECTED. THE INTENSITY
AND SIZE OF THE SYSTEM WILL BRING THE THREAT OF HIGH WINDS INTO
MUCH OF THE EASTERN U.S. INCLUDING THE GREAT LAKES, MIDWEST AND
THE OHIO VALLEY THROUGH THE NEXT COUPLE OF DAYS. THE SOUTHERN
PORTION OF THE POTENT COLD FRONT IS FORECAST TO MOVE OFF THE
SOUTHEAST U.S. THIS EVENING, BRINGING THE HEAVY RAIN AND
THUNDERSTORMS OUT INTO THE ATLANTIC. THE FRONT WILL TAKE EXTRA
TIME TO PASS THROUGH FLORIDA, WHERE A LINE OF STRONG TO SEVERE
THUNDERSTORMS IS FORECAST TO PASS THROUGH THE PENINSULA OVERNIGHT
TONIGHT. MEANWHILE, WARM AND MOIST AIR FROM THE ATLANTIC WILL
SURGE UP THE EASTERN SEABOARD TONIGHT WITH WIDESPREAD MODERATE TO
LOCALLY HEAVY RAIN UNDER VERY STRONG AND GUSTY SOUTH-SOUTHEASTERLY
WINDS.
FRIDAY WILL LIKELY SEE THE MODERATE TO HEAVY RAIN AND HIGH WINDS
IMPACTING THE GREAT LAKES AND THE ENTIRE NORTHEAST AS THE
MID-ATLANTIC CLEARS OUT FROM THE RAIN. THE CENTER OF THE LOW
PRESSURE SYSTEM SHOULD BEGIN EXITING THE GREAT LAKES INTO SOUTHERN
CANADA EARLY ON FRIDAY. HOWEVER, THE SIZE AND INTENSITY OF THE
STORM WILL KEEP THE HIGH WINDS AND HEAVY RAIN THREAT INTO SATURDAY
MORNING FROM THE LOWER GREAT LAKES TO THE NORTHEAST WITH FLASH
FLOODING THREAT TO BE CONFINED ACROSS NORTHERN NEW ENGLAND.
OUTSIDE OF THE BIG STORM IN THE EASTERN U.S., THE WEATHER WILL BE
RELATIVELY QUIET ACROSS THE SOUTHWEST AND THROUGH THE MID-SECTION
OF THE COUNTRY UNDER THE INFLUENCE OF A HIGH PRESSURE SYSTEM. THE
WEST COAST WILL SEE SOMEWHAT MORE ACTIVE WEATHER DROPPING IN FROM
NORTH TO SOUTH THROUGH THE NEXT COUPLE OF DAYS AS A COMPACT BUT
ENERGETIC UPPER LOW THAT ORIGINATED FROM THE ARCTIC OCEAN DIPS
SOUTH AND APPROACHES CALIFORNIA BY SATURDAY MORNING. MAINLY LIGHT
TO LOCALLY MODERATE PRECIPITATION CAN BE EXPECTED TO REACH COASTAL
PACIFIC NORTHWEST TODAY, REACHING INTO NORTHERN CALIFORNIA ON
FRIDAY BEFORE SLIDING SOUTH INTO CENTRAL CALIFORNIA BY SATURDAY
MORNING. SOME OF THE PRECIPITATION WILL SPILL INTO THE INTERIOR
SECTION OF THE NORTHEAST BY FRIDAY AND CONTINUE INTO SATURDAY
MORNING.
KONG
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