369
FXUS62 KTAE 210602
AFDTAE
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
202 AM EDT THU AUG 21 2025
...NEW NEAR TERM, SHORT TERM, LONG TERM, AVIATION, MARINE, FIRE WEATHER, HYDROLOGY...
NEAR TERM
(TODAY AND TONIGHT)
ISSUED AT 155 AM EDT THU AUG 21 2025
THE MAIN CONCERNS TODAY WILL BE THE DEVELOPMENT OF SCATTERED TO
WIDESPREAD SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING
WITH LOCALIZED EXCESSIVE RAINFALL LEADING TO FLOODING CONCERNS.
THE LOW TO MID-LEVEL FLOW BECOMES WEST-SOUTHWEST TODAY ALLOWING
THE SEABREEZE TO PENETRATE INLAND. MID LEVEL TROUGHING WITH A
SURFACE REFLECTION WILL ALSO BE PRESENT, AS PWATS INCREASE WITH
A 60% CHANCE OF EXCEEDING THE 90TH PERCENTILE (2.1-2.15"). THE
FLOW ALOFT IS ALSO WEAK, GENERALLY OUT OF THE WEST AROUND 5 KTS
IN THE CLOUD LAYER. AS A RESULT, SHOWERS AND THUNDERSTORMS WITH
HIGH RAINFALL RATES WILL WILL MOVE SLOWLY EAST AS THEY PROPAGATE
NORTHWARD THIS AFTERNOON AND EVENING. MUCH OF THE REGION FROM
AROUND THE US-84 CORRIDOR SOUTHWARD WILL BE AT RISK FOR LOCALLY
EXCESSIVE RAINFALL WITH ISOLATED 3-5 INCH AMOUNTS POSSIBLE,
WHICH MAY LEAD TO ISOLATED FLASH FLOODING, ESPECIALLY OCCURING
OVER URBAN CENTERS. OTHERWISE, MARGINALLY HIGH DCAPE AND A
SUBTLE HAIL PROFILE MAY LEAD TO ISOLATED GUSTY THUNDERSTORM
WINDS OF 40-50 MPH AND SMALL HAIL IN THE MORE ROBUST CORES.
OVERALL, POPS WERE INCREASED OVER GUIDANCE IN COLLABORATION
WITH SURROUNDING OFFICES AND HIGH TEMPERATURES ADJUSTED BELOW
GUIDANCE DUE TO PRECIP COVERAGE. NONETHELESS, HIGHS IN THE
LOWER 90S MAY RESULT IN HEAT INDICES OF 100-105F. IN ADDITION,
PATCHY FOG IS LIKELY IN SPOTS THIS MORNING AND AGAIN FRIDAY
MORNING.
SHORT TERM
(FRIDAY THROUGH SATURDAY NIGHT)
ISSUED AT 155 AM EDT THU AUG 21 2025
ON FRIDAY, THE WEAK SURFACE BOUNDARY WILL SAG A LITTLE FARTHER SOUTH
INTO THE AREA WITH A GREATER COVERAGE OF SHOWERS AND THUNDERSTORMS
EXPECTED. PRECIPITABLE WATER VALUES WILL REMAIN HIGH NEAR 2 INCHES,
AND SOME POCKETS OF HEAVY RAIN ARE POSSIBLE WITH LOCALIZED FLASH
FLOODING, MAINLY IN URBAN AND POOR DRAINAGE AREAS. HIGH TEMPERATURES
ARE EXPECTED TO BE SLIGHTLY COOLER AROUND 90 GIVEN THE INCREASED
CLOUD COVER AND STORM COVERAGE. OVERNIGHT LOWS WILL REMAIN MUGGY IN
THE LOW TO MID 70S.
ON SATURDAY, SIMILAR CONDITIONS ARE EXPECTED WITH A WEAK FRONTAL
BOUNDARY DRAPED ACROSS THE AREA WITH HIGH PRECIPITABLE WATER VALUES
AROUND 2 INCHES. HIGH RAIN COVERAGE IS EXPECTED AGAIN WITH POCKETS
OF HEAVY RAIN AND LOCALIZED FLASH FLOODING POSSIBLE. HIGH
TEMPERATURES ARE EXPECTED TO BE COOLER DUE TO ALL THE CLOUD COVER
AND RAIN COVERAGE.
LONG TERM
(SUNDAY THROUGH WEDNESDAY)
ISSUED AT 155 AM EDT THU AUG 21 2025
ABOVE AVERAGE RAIN CHANCES WILL CONTINUE THROUGH SUNDAY WITH A
STALLED SURFACE BOUNDARY IN THE AREA AND PRECIPITABLE WATER VALUES
OVER 2 INCHES. SOME POCKETS OF HEAVY RAIN REMAIN POSSIBLE. BY EARLY
NEXT WEEK, RAIN CHANCES ARE EXPECTED TO DECREASE AS SOME DRIER AIR
MAKES IT INTO THE AREA WITH A FAIRLY DEEP UPPER LEVEL TROUGH ACROSS
THE GREAT LAKES. HIGH TEMPERATURES ARE EXPECTED TO BE HELD DOWN ON
SUNDAY DUE TO THE CLOUD COVER AND RAIN, RANGING FROM THE MID 80S TO
NEAR 90. LOW TEMPERATURES WILL REMAIN MUGGY IN THE 70S THROUGH THE
WEEKEND. HOWEVER, BY THE EARLY TO MIDDLE PART OF NEXT WEEK, WE COULD
SEE SOME LOWS IN THE 60S DIPPING INTO OUR NORTHERN COUNTIES WITH THE
DRIER AIRMASS.
AVIATION
(06Z TAFS)
ISSUED AT 155 AM EDT THU AUG 21 2025
MAINTAINED PATCHY FOG AROUND SUNRISE THIS MORNING AT DHN/VLD BASED
ON SOME PERSISTENCE AND LATEST GUIDANCE, OTHERWISE VFR TO START THE
DAY. SCATTERED TO WIDESPREAD TSRA STILL ON TRACK TO DEVELOP THIS
AFTERNOON, PARTICULARLY DHN/TLH AND POSSIBLY VLD, WITH BRIEF MVFR/
IFR CONDITIONS DUE TO VISIBILITY POSSIBLE IN THE STRONGER STORMS.
AS PREVIOUSLY MENTIONED, SHRA/TSRA MAY LINGER PAST 00Z AT ABY/DHN.
LIGHT WEST AND NORTHWESTERLY FLOW BECOMES WEST AND SOUTHWESTERLY
DURING THE MORNING AND AFTERNOON.
MARINE
ISSUED AT 155 AM EDT THU AUG 21 2025
WEST TO SOUTHWEST WINDS WILL PREVAIL THROUGH THE WEEKEND AHEAD OF A
WEAK FRONTAL BOUNDARY. SCATTERED TO NUMEROUS SHOWERS AND
THUNDERSTORMS ARE EXPECTED STARTING ON FRIDAY AND LASTING THROUGH
SUNDAY. BY MONDAY, A FRONT WILL PASS THROUGH THE MARINE AREA
SHIFTING WINDS TO AN OFFSHORE DIRECTION AND PROVIDING A DRIER
AIRMASS WITH A DECREASE IN THE COVERAGE OF STORMS. OUTSIDE OF
THUNDERSTORMS, WINDS ARE EXPECTED TO BE AROUND 10 KNOTS OR LESS WITH
SEAS OF 1 TO 2 FEET. HOWEVER, LOCALLY HIGHER WINDS AND SEAS CAN BE
EXPECTED NEAR STORMS.
FIRE WEATHER
ISSUED AT 155 AM EDT THU AUG 21 2025
AFTERNOON SHOWER AND THUNDERSTORM COVERAGE INCREASES STARTING TODAY
AND CONTINUES THROUGH SUNDAY, AS A SLOW-MOVING COLD FRONT MOVES
SOUTHWARD. OUTSIDE OF BRIEFLY ERRATIC AND GUSTY WINDS IN THE
VICINITY OF ANY THUNDERSTORMS, THE MAIN CONCERN WILL BE POCKETS OF
POOR DISPERSION EACH AFTERNOON INTO THIS WEEKEND, DUE TO LOWER
MIXING HEIGHTS AND GENERALLY WEAK WESTERLY TRANSPORT WINDS. LOOKING
AHEAD, A MUCH DRIER AIR MASS FILTERS IN EARLY NEXT WEEK.
HYDROLOGY
ISSUED AT 155 AM EDT THU AUG 21 2025
AS WE HEAD INTO THE WEEKEND, MOISTURE WILL INCREASE ACROSS THE AREA
AS A SURFACE FRONT MOVES SLOWLY INTO THE REGION. LOCALIZED HEAVY
RAINFALL IS EXPECTED, AND FLASH FLOODING IN URBAN AND POOR DRAINAGE
AREAS IS POSSIBLE. ASIDE FROM THE FLASH FLOOD RISK, NO RIVERINE
FLOODING IS ANTICIPATED AS WIDESPREAD RAIN TOTALS ARE NOT EXPECTED
TO PRODUCE ANY SIGNIFICANT RIVER RISES. DRIER CONDITIONS RETURN BY
MONDAY, ENDING ANY FLASH FLOOD THREAT.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS NOT REQUESTED. HOWEVER, SPOTTERS ARE ALWAYS
ENCOURAGED TO SAFELY REPORT SIGNIFICANT WEATHER CONDITIONS WHEN THEY
OCCUR BY CALLING THE OFFICE OR TWEETING US @NWSTALLAHASSEE.
PRELIMINARY POINT TEMPS/POPS
TALLAHASSEE 92 74 91 74 / 70 50 80 40
PANAMA CITY 90 77 90 76 / 50 20 70 50
DOTHAN 90 73 90 72 / 60 50 70 40
ALBANY 93 74 91 73 / 50 50 80 50
VALDOSTA 93 73 92 73 / 60 50 80 60
CROSS CITY 92 74 91 74 / 50 40 90 60
APALACHICOLA 89 78 88 77 / 50 20 70 50
TAE WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GA...NONE.
AL...NONE.
GM...NONE.
NEAR TERM...LF
SHORT TERM...DVD
LONG TERM....DVD
AVIATION...LF
MARINE...DVD
FIRE WEATHER...LF
HYDROLOGY...DVD
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