491
FXUS01 KWBC 090821
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT TUE APR 09 2024
VALID 12Z TUE APR 09 2024 - 12Z THU APR 11 2024
...HEAVY RAIN, FLASH FLOODING AND SEVERE WEATHER THREAT WILL
EXPAND ACROSS THE SOUTHERN PLAINS INTO THE LOWER MISSISSIPPI
VALLEY THROUGH WEDNESDAY, REACHING INTO MIDWEST, OHIO/TENNESSEE
VALLEYS AND THE SOUTHEAST BY THURSDAY MORNING...
...CRITICAL FIRE DANGER SHIFTS INTO TEXAS BIG BEND AND RIO GRANDE
VALLEY...
FOLLOWING THE 2024 GREAT AMERICAN ECLIPSE, A DEVELOPING LOW
PRESSURE SYSTEM OVER THE SOUTHERN PLAINS WILL BECOME THE MAIN
WEATHER STORY FOR THE NEXT COUPLE OF DAYS. A VIGOROUS UPPER-LEVEL
TROUGH EXITING THE SOUTHERN ROCKIES/ NORTHERN MEXICO WILL CONTINUE
TO INTERACT WITH MOISTURE RETURNING FROM THE GULF OF MEXICO TO
DELIVER SPRAWLING AREAS OF HEAVY RAIN AND EMBEDDED SEVERE
THUNDERSTORMS FIRST ACROSS EASTERN TEXAS INTO THE ARKLATEX REGION
TODAY, BEFORE EXPANDING INTO THE TEXAS PANHANDLE TONIGHT. THE
DYNAMIC INTERACTION WILL THEN CONSOLIDATE AND INTENSIFY A LOW
PRESSURE SYSTEM GRADUALLY OVER EASTERN TEXAS TONIGHT, BEFORE
TAKING THE SYSTEM MORE RAPIDLY NORTHEASTWARD ACROSS THE ARKLATEX
REGION ON WEDNESDAY. IT APPEARS THAT A POTENT COLD FRONT TRAILING
SOUTH FROM THE LOW CENTER WILL BE THE FOCUS FOR STRONG TO SEVERE
THUNDERSTORMS ACROSS EASTERN TEXAS WEDNESDAY MORNING, THROUGH THE
LOWER MISSISSIPPI VALLEY ON WEDNESDAY, BEFORE REACHING INTO THE
EASTERN GULF STATES AND THE FLORIDA PANHANDLE BY EARLY ON
THURSDAY. LESS OF A SEVERE WEATHER THREAT IS FORECAST FOR AREAS
NORTH OF THE LOW PRESSURE CENTER TRACK. MEANWHILE, HEAVY RAIN
COULD LEAD TO FLOODING CONCERNS FROM THE TEXAS PANHANDLE TONIGHT,
WITH THE HIGHEST THREAT ACROSS THE MID-SOUTH THROUGH WEDNESDAY,
BEFORE SPREADING INTO THE MIDWEST AND LOWER GREAT LAKES EARLY ON
THURSDAY. WINDS WILL BECOME INCREASINGLY STRONG AND GUSTY AS THE
LOW PRESSURE SYSTEM BECOMES QUITE STRONG BY THURSDAY MORNING.
OUTSIDE OF THE INTENSIFYING LOW PRESSURE SYSTEM, RELATIVELY QUIET
WEATHER IS EXPECTED FOR THE NEXT COUPLE OF DAYS. THE CLOUD COVER
AND AREAS OF RAIN ACROSS THE NORTHERN PLAINS INTO THE UPPER GREAT
LAKES ARE FORECAST TO TAPER OFF TONIGHT AS AN OLD CYCLONE
CONTINUES TO FILL AND DEPARTS INTO SOUTHERN CANADA. SCATTERED
SHOWERS WILL THEN REACH INTO THE LOWER GREAT LAKES TUESDAY NIGHT,
AND CONTINUE TO SPREAD INTO NEW ENGLAND WEDNESDAY NIGHT. THE
PACIFIC NORTHWEST WILL SEE THE ARRIVAL OF A FRONTAL ZONE WITH SOME
MOISTURE AND HIGH ELEVATION LIGHT SNOWS INTO THE NORTHERN CASCADES
AND EVENTUALLY ROCKIES TUESDAY BEFORE DRYING OUT ON WEDNESDAY. A
WARMING TREND IS IN STORE FOR THE WEST AND EAST COAST, AS WELL AS
THE NORTHERN TIER STATES WHILE COOLER THAN NORMAL TEMPERATURES
WILL LINGER ACROSS THE SOUTH BEHIND THE INTENSIFYING LOW PRESSURE
SYSTEM.
KONG/GALLINA
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