161
FXUS01 KWBC 081910
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
310 PM EDT SAT JUL 08 2023
VALID 00Z SUN JUL 09 2023 - 00Z TUE JUL 11 2023
...HEAVY RAIN AND INSTANCES OF FLASH FLOODING LIKELY ACROSS PARTS
OF THE NORTHEAST ON SUNDAY, WITH THE THREAT LINGERING ACROSS NEW
ENGLAND ON MONDAY...
...ADDITIONAL ROUNDS OF SEVERE WEATHER AND FLASH FLOODING PERSIST
ACROSS THE CENTRAL/SOUTHERN PLAINS AND LOWER MISSISSIPPI VALLEY
THROUGH THIS WEEKEND...
...ANOMALOUSLY HOT WEATHER CONTINUES FOR PORTIONS OF THE
SOUTHWEST, WEST TEXAS, INTERIOR PACIFIC NORTHWEST, AND FLORIDA
PENINSULA...
A MID-SUMMER WEATHER PATTERN FEATURING DANGEROUS HEAT AND THE
THREAT OF SEVERE THUNDERSTORMS AND/OR FLASH FLOODING IS EXPECTED
TO IMPACT PARTS OF THE UNITED STATES HEADED INTO EARLY NEXT WEEK.
AT THE UPPER LEVELS, A TROUGH IS FORECAST TO SWING THROUGH THE
EAST COAST WHILE A BUILDING RIDGE ANCHORS OVER THE SOUTHWEST.
ANOMALOUS ATMOSPHERIC MOISTURE CONTENT LOCATED ACROSS THE
MID-ATLANTIC AND NORTHEAST WHEN COMBINED WITH FORCING FROM AN
APPROACHING FRONTAL SYSTEM WILL ALLOW FOR NUMEROUS THUNDERSTORMS
TO PRODUCE AREAS OF HEAVY RAIN BETWEEN THE MID-ATLANTIC AND NEW
ENGLAND ON SUNDAY. THIS HEAVY RAINFALL THREAT WHEN COMBINED WITH
WET ANTECEDENT CONDITIONS IS LIKELY TO PRODUCE SEVERAL AREAS OF
FLASH FLOODING, SOME OF WHICH COULD BE SIGNIFICANT. THE HEAVIEST
RAIN IS LIKELY TO OCCUR ACROSS THE NORTHERN MID-ATLANTIC ON
SUNDAY, WITH THE THREAT SHIFTING TO THE INTERIOR NORTHEAST AND NEW
ENGLAND BETWEEN SUNDAY NIGHT AND MONDAY. RESIDENTS AND VISITORS IN
THIS REGION BETWEEN DC/MARYLAND AND VERMONT ARE URGED TO MONITOR
LOCAL WARNINGS AND NEVER DRIVE THROUGH FLOODED ROADWAYS. ALONG
WITH THE HEAVY RAINFALL POTENTIAL, SEVERE THUNDERSTORMS CAPABLE OF
CONTAINING DAMAGING WIND GUSTS ARE POSSIBLE THROUGHOUT PORTIONS OF
THE MID-ATLANTIC ON SUNDAY.
ALONG AN ATTACHED FRONTAL BOUNDARY EXTENDING FROM THE NORTHEAST
THROUGH THE MID-SOUTH AND INTO THE SOUTHERN PLAINS, CLUSTERS OF
STRONG TO SEVERE THUNDERSTORMS ARE FORECAST TO PUSH FROM THE
CENTRAL HIGH PLAINS TONIGHT TOWARDS THE SOUTHEAST. THE THREAT OF
DAMAGING WIND GUSTS ARE FORECAST TO SPREAD AS FAR EAST AS THE
MID-SOUTH, WITH LARGE HAIL POSSIBLE OVER EASTERN COLORADO AND THE
OK/TX PANHANDLES. ADDITIONALLY, HEAVY RAIN COULD LEAD TO SCATTERED
AREAS OF FLASH FLOODING. THE FLASH FLOOD AND SEVERE THUNDERSTORM
THREAT IS ALSO EXPECTED TO LINGER INTO SUNDAY BETWEEN THE CENTRAL
GULF COAST AND SOUTHERN PLAINS, BEFORE A RESURGENCE IN
THUNDERSTORM ACTIVITY THROUGHOUT THE CENTRAL/SOUTHERN PLAINS ON
MONDAY.
MUCH OF THE SOUTHERN TIER BETWEEN THE FLORIDA PENINSULA AND THE
DESERT SOUTHWEST HAVE TRULY ENTERED THE DOG DAYS OF SUMMER, WITH
OPPRESSIVE HEAT FORECAST TO REMAIN IN PLACE INTO THE FORESEEABLE
FUTURE. HIGHS INTO THE MID-90S ARE FORECAST ACROSS THE SOUTHERN
FLORIDA PENINSULA, WITH HIGH HUMIDITY LEADING TO HEAT INDICES NEAR
110 DEGREES. SIMILAR CONDITIONS ARE EXPECTED OVER THE NEXT FEW
DAYS ACROSS SOUTHERN TEXAS, BUT WITH HIGHS TOPPING OUT NEAR 100
DEGREES. LOWER HUMIDITY, BUT EVEN HIGH MAXIMUM TEMPERATURES ARE
FORECAST INTO THE SOUTHERN HIGH PLAINS AND SOUTHWEST, WHERE HIGH
TEMPERATURES ARE FORECAST TO SURGE PASS THE CENTURY MARK.
EXCESSIVE HEAT WARNINGS ARE IN EFFECT ACROSS PARTS OF SOUTHERN
ARIZONA, WITH HEAT ADVISORIES SPANNING FROM SOUTHERN NEW MEXICO TO
SOUTHERN TEXAS. ADDITIONALLY, SUMMER HEAT WILL CONTINUE ACROSS THE
INTERIOR NORTHWEST ON SUNDAY AS HIGHS REACH INTO THE UPPER 90S
BEFORE SLIGHT RELIEF ARRIVES ON MONDAY WITH MORE SEASONABLE
TEMPERATURES.
SNELL
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page