285
FXUS01 KWBC 050519
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
118 AM EDT FRI JUL 05 2024
VALID 12Z FRI JUL 05 2024 - 12Z SUN JUL 07 2024
...HEAT IS EXPECTED TO INTENSIFY AND SPREAD FARTHER UP THE WEST
COAST THIS WEEKEND...
...OPPRESSIVE HEAT AND HUMIDITY WILL SHIFT EAST INTO THE
MID-ATLANTIC AND SOUTHEAST TODAY AND SATURDAY...
...EXCESSIVE RAINFALL POSSIBLE OVER PORTIONS OF THE COASTAL
MID-ATLANTIC DOWN THROUGH THE CAROLINAS ON SATURDAY...
...BERYL IS FORECAST TO RE-INTENSIFY OVER THE SOUTHWESTERN GULF OF
MEXICO ON SATURDAY AND THREATEN SOUTHERN TEXAS...
DANGEROUS HEAT IS LIKELY TO BECOME MORE WIDESPREAD IN THE WEST
TODAY AND SATURDAY. TODAY, TEMPERATURES WILL SOAR INTO THE 100S
AND 110S OVER MUCH OF CALIFORNIA AND SOUTHERN OREGON. TEMPERATURES
WILL BE 15-30 DEGREES ABOVE AVERAGE FOR MUCH OF THE WEST COAST
TODAY. WIDESPREAD TEMPERATURE RECORDS ARE EXPECTED TO BE TIED OR
BROKEN. SATURDAY WILL LIKELY SHAPE UP TO BE THE HOTTEST DAY IN
THIS HEATWAVE WHEN HIGH TEMPERATURES INTO THE 110S WILL BE COMMON
ACROSS CALIFORNIA OUTSIDE OF THE COOLING EFFECTS OF THE PACIFIC
OCEAN NEAR THE COAST AND THE NATURALLY COOLER HIGHER ELEVATIONS.
NUMEROUS RECORD-BREAKING TEMPERATURES CAN BE EXPECTED THROUGH THE
NEXT FEW DAYS. LOCALLY HIGHER TEMPERATURES INTO THE 120S ARE
POSSIBLE IN THE TYPICAL HOT SPOTS OF THE DESERT SOUTHWEST. THE
TRIPLE-DIGIT HEAT WILL EXPAND NORTHWARD INTO THE PACIFIC NORTHWEST
AND PARTS OF THE CENTRAL GREAT BASIN, WITH WIDESPREAD HIGHS RISING
INTO THE 90S AND LOW 100S. THE DURATION OF THIS HEAT IS ALSO
CONCERNING AS SCORCHING ABOVE AVERAGE TEMPERATURES ARE FORECAST TO
LINGER INTO NEXT WEEK. HEAT IMPACTS CAN COMPOUND OVER TIME,
THEREFORE IT IS IMPORTANT TO REMAIN WEATHER AWARE AND FOLLOW THE
ADVICE OF LOCAL OFFICIALS. HEAT WATCHES AND WARNINGS ARE IN EFFECT
FOR MUCH OF THE WEST. THIS LEVEL OF HEAT THROUGHOUT PARTS OF THE
MOJAVE DESERT AND SACRAMENTO/SAN JOAQUIN VALLEYS OF CALIFORNIA
COULD POSE A RISK TO ANYONE IF PROPER HEAT SAFETY IS NOT FOLLOWED.
IT IS IMPERATIVE TO STAY HYDRATED, OUT OF DIRECT SUNLIGHT, AND IN
BUILDINGS WITH SUFFICIENT AIR-CONDITIONING WHEN POSSIBLE. IT IS
ALSO EQUALLY AS IMPORTANT TO CHECK ON THE SAFETY OF VULNERABLE
FRIENDS, FAMILY, AND NEIGHBORS.
MEANWHILE, OPPRESSIVE HEAT AND HUMIDITY WILL BEGIN TO SHIFT
EASTWARD TO THE MID-ATLANTIC AND SOUTHEAST FOR THE END OF THE
WEEK. HIGH TEMPERATURES RISING INTO THE UPPER 90S AND LOW 100S ARE
EXPECTED, WITH HEAT INDICES SOARING INTO THE 110S ACROSS THE LOWER
MISSISSIPPI VALLEY. WARM OVERNIGHT CONDITIONS IN THE UPPER 70S AND
LOW 80S WILL OFFER LITTLE RELIEF, LEADING TO A DANGEROUS SITUATION
FOR THOSE WITHOUT ACCESS TO ADEQUATE COOLING. A COLD FRONT
ENTERING THE SOUTHERN PLAINS IS ANTICIPATED TO OFFER COOLER AND
BELOW AVERAGE TEMPERATURES TO OKLAHOMA, MUCH OF NORTHERN/WESTERN
TEXAS, AND THE MID-SOUTH TODAY. ABOVE AVERAGE TEMPERATURES ARE
THEN ANTICIPATED TO REMAIN CONFINED TO THE SOUTHEAST AND
MID-ATLANTIC FOR THE START OF THE WEEKEND, WITH AFTERNOON HIGHS
INTO THE MID-TO-UPPER 90S.
AN ACTIVE AND STORMY WEATHER PATTERN OVER THE CENTRAL U.S. IS
EXPECTED TO BRING HEIGHTENED CHANCES FOR SEVERE THUNDERSTORMS AND
HEAVY RAINFALL, WHICH COULD IMPACT HOLIDAY GATHERINGS THROUGH
EARLY THIS WEEKEND. A DEVELOPING AREA OF LOW PRESSURE OVER THE
NORTHERN PLAINS IS FORECAST TO TEAM UP WITH A LINGERING FRONTAL
BOUNDARY STRETCHING FROM THE LOWER GREAT LAKES TO THE SOUTHERN
PLAINS TO TRIGGER SOME METEOROLOGICAL FIREWORKS. THUNDERSTORM
CHANCES SPAN FROM THE SOUTHERN PLAINS/ROCKIES TO THE MIDDLE/UPPER
MISSISSIPPI VALLEY AND ALSO EASTWARD TO THE OHIO VALLEY AND
MID-ATLANTIC. FLASH FLOODING WILL REMAIN A CONCERN THROUGHOUT THE
UPPER MIDWEST AS WELL DUE TO YET ANOTHER ROUND OF THUNDERSTORMS
OVERLAPPING AREAS DEALING WITH ONGOING RIVER FLOODING AND
SATURATED SOILS, WITH SCATTERED FLASH FLOODING ALSO POSSIBLE
BETWEEN THE OHIO VALLEY AND SOUTHERN PLAINS. TODAY, THUNDERSTORMS
WILL CONTINUE TO PROGRESS EASTWARD WITH THE FRONTAL BOUNDARY INTO
MUCH OF THE EASTERN THIRD OF THE COUNTRY. ISOLATED STRONG TO
SEVERE STORMS AND FLASH FLOODING ARE POSSIBLE. THE GREATEST THREAT
FOR DAMAGING WIND GUSTS ASSOCIATED WITH THESE STORMS WILL BE
ACROSS THE UPPER OHIO VALLEY. ELSEWHERE, DAILY THUNDERSTORM
CHANCES ASSOCIATED WITH DAYTIME HEATING ARE POSSIBLE ALONG THE
GULF COAST AND FLORIDA. SCATTERED SHOWERS AND THUNDERSTORMS ARE
ALSO POSSIBLE THROUGHOUT THE NORTH-CENTRAL U.S. THIS WEEKEND AS
UPPER TROUGHING REMAINS OVER THE REGION. THERE'S A SLIGHT RISK FOR
EXCESSIVE RAINFALL LEADING TO FLASH FLOODING ALONG A STALLED OUT
FRONTAL BOUNDARY OVER PORTIONS OF SOUTHEASTERN VIRGINIA DOWN
THROUGH COASTAL CAROLINA ON SATURDAY. RESIDENTS AND VISITORS
LOCATED WITHIN AREAS EXPECTING SEVERE WEATHER AND/OR HEAVY
RAINFALL ARE ADVISED TO REMAIN WEATHER AWARE, HAVE MULTIPLE WAYS
TO RECEIVE WARNINGS, AND NEVER DRIVE ACROSS FLOODED ROADWAYS.
AS WE HEAD INTO THE WEEKEND, INTERESTS ALONG THE WESTERN GULF OF
MEXICO SHOULD PAY ATTENTION TO THE FUTURE PROGRESS OF HURRICANE
BERYL, CURRENTLY LOCATED IN THE WESTERN CARIBBEAN SEA. BERYL IS
FORECAST TO WEAKEN INTO A TROPICAL STORM AS IT TRAVERSES THE
YUCATAN PENINSULA ON FRIDAY BEFORE EMERGING INTO THE SOUTHWESTERN
GULF OF MEXICO ON SATURDAY. BERYL HAS AN OPPORTUNITY TO
RE-INTENSIFY OVER THE GULF AND TURN MORE NORTHWEST TOWARD THE
SOUTHERN TIP OF TEXAS BY THE END OF THIS FORECAST PERIOD SATURDAY
EVENING.
KEBEDE/KONG
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