217
FXUS01 KWBC 060740
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
340 AM EDT FRI SEP 06 2024
VALID 12Z FRI SEP 06 2024 - 12Z SUN SEP 08 2024
...DANGEROUS HEAT CONTINUES TO IMPACT LARGE SECTIONS OF THE WEST
INTO THIS WEEKEND...
...HEAVY RAIN AND INSTANCES OF FLASH FLOODING ARE LIKELY
THROUGHOUT THE CENTRAL GULF COAST AND SOUTHEAST OVER THE NEXT FEW
DAYS...
...SHOWERS AND ISOLATED SEVERE THUNDERSTORMS POSSIBLE FROM THE
OHIO VALLEY TO THE LOWER GREAT LAKES TODAY...
AN UPPER LEVEL HIGH PRESSURE SYSTEM IS EXPECTED TO CONTINUE AIDING
WELL ABOVE AVERAGE AND POTENTIALLY DANGEROUS TEMPERATURES
THROUGHOUT THE WEST INTO THE FIRST FULL WEEKEND OF SEPTEMBER.
HIGHS TODAY ARE FORECAST TO SOAR INTO THE TRIPLE DIGITS FOR MUCH
OF THE SOUTHWEST AND INTERIOR CALIFORNIA, WITH 110S IN THE
TYPICALLY HOTTEST LOCATIONS OF THE DESERT SOUTHWEST. MEANWHILE,
DAILY HIGH TEMPERATURE RECORDS ARE POSSIBLE IN THE NORTHWEST WHERE
MID-TO-UPPER 90S ARE IN THE FORECAST. A MINIMAL RELAXING OF THE
EXTREME HEAT SHOULD BE FELT THROUGHOUT MUCH OF THE WEST AND
SOUTHWEST ON SATURDAY, BUT WITH TEMPERATURES REMAINING ABOVE
AVERAGE. THE CORE OF THE ANOMALOUS HEAT WILL SHIFT TO THE NORTHERN
GREAT BASIN AND NORTHERN ROCKIES AS PARTS OF EASTERN OREGON AND
WASHINGTON EXPERIENCE ANOTHER DAY WITH HIGHS WELL INTO THE 90S.
POOR AIR QUALITY WILL ALSO REMAIN AN ISSUE THROUGHOUT PARTS OF THE
NORTHERN GREAT BASIN AS WILDFIRE SMOKE CONTINUES TO PLAGUE THE
REGION. RESIDENTS AND VISORS ARE ADVISED TO FOLLOW PROPER HEAT
SAFETY, WHICH INCLUDES CHECKING ON VULNERABLE INDIVIDUALS.
NOT MUCH HEAVY PRECIPITATION TO SPEAK OF THROUGHOUT THE NATION
OVER THE NEXT FEW DAYS BESIDES ALONG THE GULF COAST AND PARTS OF
THE SOUTHEAST. A LINGERING STATIONARY FRONT AND A COUPLE WAVES OF
LOW PRESSURE WILL PROVIDE A FOCUS FOR TROPICAL DOWNPOURS OVER
ALREADY SATURATED SOILS. THE GREATEST THREAT FOR HEAVY RAINFALL
TURNING INTO FLASH FLOODING IMPACTS ARE FORECAST ACROSS SOUTHEAST
LOUISIANA TODAY, WHERE A MODERATE RISK (LEVEL 3/4) OF EXCESSIVE
RAINFALL HAS BEEN ISSUED. SEVERAL INCHES OF RAIN OCCURRING WITHIN
A VERY SHORT PERIOD OF TIME COULD LEAD TO NUMEROUS FLASH FLOODS
HERE. A SCATTERED FLASH FLOOD THREAT ALSO EXTENDS EASTWARD ALONG
AND JUST NORTH OF THE STATIONARY FRONT INTO NORTHERN FLORIDA AND
SOUTHERN GEORGIA. THIS FRONTAL BOUNDARY IS EXPECTED TO GRADUALLY
SINK SOUTHWARD BY SATURDAY AS AN AREA OF LOW PRESSURE EXITS OFF
THE SOUTHEAST COASTLINE, WITH A PERSISTING ISOLATED FLASH FLOOD
POTENTIAL EXTENDING FROM THE CENTRAL GULF COAST AND NORTHERN
FLORIDA TO THE COASTAL CAROLINAS. REMEMBER, MOST FLOOD FATALITIES
OCCUR WITHIN VEHICLES... TURN AROUND, DON'T DROWN.
ELSEWHERE, A COLD FRONT SWEEPING ACROSS THE OHIO VALLEY AND LOWER
GREAT LAKES WILL USHER IN BELOW AVERAGE TEMPERATURES THROUGHOUT
THE GREAT LAKES, MIDWEST, BEFORE REACHING THE EAST COAST BY THIS
WEEKEND, WHILE ALSO PRODUCING AREAS OF SHOWERS AND THUNDERSTORMS.
A FEW STORMS COULD PRODUCE LOCALLY GUSTY WINDS AND HAIL TODAY IN
THE OHIO VALLEY AND NEARBY LAKE ERIE REGION. SCATTERED SHOWERS ARE
EXPECTED TO PROGRESS EASTWARD ALONG THE COLD FRONT ON SATURDAY AND
DAMPEN WEEKEND PLANS THROUGHOUT THE INTERIOR NORTHEAST AND
SECTIONS OF NEW ENGLAND BY SATURDAY EVENING.
SNELL
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