A short-lived severe thunderstorm developed during the afternoon hours in association with an unstable air mass.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TAE wrote it up.
A short-lived severe thunderstorm developed during the afternoon hours in association with an unstable air mass.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tallahassee, FL wrote its last area forecast discussion before the first event at Jul 21, 1:43 PM CST, 3 hours 32 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TALLAHASSEE FL 343 PM EDT WED JUL 21 2010 .SYNOPSIS... THE 18 UTC REGIONAL SURFACE ANALYSIS SHOWED A HIGH PRESSURE RIDGE FROM THE WESTERN ATLANTIC TO LA...AND A WEAK TROPICAL WAVE OVER THE WESTERN GULF OF MEXICO. VAPOR IMAGERY AND UPPER AIR DATA SHOWED A RIDGE FROM OK THROUGH GA AND INTO THE WESTERN ATLANTIC...WITH PLENTY OF DRY AIR ALOFT. LOCAL RADARS WERE UNUSUALLY QUIET...AS SO FAR THE WARM DRY AIR ALOFT HAS BEEN SUPPRESSING DEEP MOIST CONVECTION. HOWEVER...THERE MAY BE ENOUGH BOUNDARY LAYER MOISTURE AND INSTABILITY FOR A FEW SHOWERS OR THUNDERSTORMS THIS EVENING. && .SHORT TERM... (TONIGHT THROUGH SATURDAY) THE FORECAST PERIOD WILL BE DOMINATED BY DEEP LAYER RIDGING. THE LATEST NWP GUIDANCE INDICATES THAT THURSDAY MAY NOT BE QUITE AS DRY AS TODAY...AS DEEP LAYER MOISTURE IS FORECAST TO INCREASE A BIT (ESPECIALLY IN GA). STILL...THE MOISTURE IS NOT EXPECTED TO BE ALL THAT IMPRESSIVE SO THE POP WILL ONLY BE AROUND 30 PERCENT (BELOW CLIMO). FRIDAY IS FORECAST TO BE SIMILAR TO THURSDAY IN TERMS OF THE DEEP LAYER MOISTURE PROFILE AND MEAN NORTHEAST FLOW (1000-700 MB). MOISTURE WILL BE ON THE INCREASE FRIDAY NIGHT AND SATURDAY AS A TROPICAL WAVE (CURRENTLY NEAR HISPANIOLA) APPROACHES FROM THE EAST. THE LATEST GLOBAL GUIDANCE (EXCLUDING THE GEM) DO NOT DEVELOP THIS WAVE...WHICH MEANS THE ONLY IMPACT TO OUR REGION WOULD BE IN INCREASE IN SCATTERED SHOWERS AND THUNDERSTORMS AND AN INCREASE IN WINDS AND SEAS. TEMPERATURES WILL BE HOT...WITH HIGHS IN THE MID TO UPPER 90S INLAND...AND INDEX VALUES EXCEEDING 100 DEGREES. .LONG TERM... (SATURDAY NIGHT THROUGH WEDNESDAY) THE VERY HOT UPPER LEVEL RIDGE TO OUR NORTH WILL LIKELY REMAIN THE DOMINANT SYNOPTIC LEVEL FEATURE THROUGH THE UPCOMING WEEKEND AND POSSIBLY INTO MUCH OF NEXT WEEK...MOISTURE WILL BE ON THE INCREASE FROM THE SOUTHEAST AS PREVIOUSLY MENTIONED ABOVE. WHETHER OR NOT WE WILL SEE ANY DIRECT OR INDIRECT IMPACTS FROM THE TROPICAL DISTURBANCE NEAR THE DOMINICAN REPUBLIC DURING THIS TIME IS STILL MUCH TOO EARLY TO PROJECT...BUT THE INFLUX OF DEEP LAYER TROPICAL MOISTURE INTO THE REGION FROM THE SOUTHEAST SHOULD ALLOW POPS TO RETURN TO NEAR CLIMATOLOGICAL NORMALS WITH A MORE ACTIVE SEA BREEZE CIRCULATION DRIVING THE AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. HOWEVER...THE INFLUENCE OF THE UPPER LEVEL HIGH WILL STILL BE FELT IN THE TEMPERATURES DEPARTMENT ...WITH BOTH HIGHS AND LOWS AVERAGING SEVERAL DEGREES ABOVE NORMAL THROUGH MUCH OF THE PERIOD. && .AVIATION... THRU 18Z THU EXPECTING VFR THROUGH THE PERIOD WITH THE EXCEPTION OF POSSIBLE 5SM BR THU MORNING FOR DHN...ABY...AND VLD. 20 PERCENT OR LOWER CHANCE OF SHWRS/TSTMS FOR WED AFTERNOON THRU THU 18Z ACROSS THE REGION...WITH LOWER CHANCES TO THE NORTH EXPECT VERY FEW SHOWERS AND THUNDERSTORMS TO DEVELOP AS THE STRONG UPPER LEVEL RIDGE SUPPRESSES CONVECTION...THERE ARE ONLY SCT CB GROUPS IN THE TAFS FOR THIS AFTERNOON FOR TLH AND ECP. && .MARINE... SO FAR SEAS HAVE BEEN A BIT HIGHER THAN THE SWAN WAS FORECASTING...BUT WE EXPECT THEM TO DIMINISH TONIGHT AS THE WIND SPEEDS WEAKEN. CAUTION LEVELS MAY BE REACHED FRIDAY NIGHT AS A TROPICAL WAVE DRAWS NEAR. && .FIRE WEATHER... NO FIRE WEATHER CONCERNS THROUGH FRIDAY. && .PRELIMINARY POINT TEMPS/POPS... TALLAHASSEE 74 96 74 96 76 / 10 30 20 20 20 PANAMA CITY 76 93 76 91 77 / 10 20 20 30 20 DOTHAN 75 99 74 97 75 / 20 30 30 30 20 ALBANY 76 97 75 97 75 / 20 40 30 20 20 VALDOSTA 73 95 73 95 74 / 10 30 20 20 20 CROSS CITY 73 96 73 94 75 / 10 20 10 30 30 APALACHICOLA 76 92 77 91 79 / 10 20 10 20 40 && .TAE WATCHES/WARNINGS/ADVISORIES... AL...NONE. GA...NONE. FL...NONE. GM...NONE. && AVIATION/FIRE WX...M BARRY/MOORE LONG TERM...GOULD REST OF DISCUSSION...FOURNIER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TALLAHASSEE FL 426 AM EDT WED JUL 21 2010 ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134- GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-220830- COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON- HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF- INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY- INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON- COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON- COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-QUITMAN-CLAY- RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN- EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE- DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER- APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE RIVER FL OUT TO 20 NM- COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM- COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO 20 NM- COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH OUT 20 NM- WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM- WATERS FROM SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM- 426 AM EDT WED JUL 21 2010 /326 AM CDT WED JUL 21 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA... SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE FLORIDA BIG BEND AND PANHANDLE...AND ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... ...HEAT INDICES WILL CLIMB INTO THE 105 TO 108 RANGE TODAY AND THURSDAY... ...MODERATE RISK FOR RIP CURRENTS ALONG THE PANHANDLE BEACHES WEST OF MEXICO BEACH TODAY... HOT AND DRY CONDITIONS COMBINED WITH LOWER CLOUD COVERAGE AND RAIN CHANCES WILL ALLOW TEMPERATURES TO REACH THE MID AND UPPER 90S WITH HEAT INDEX VALUES REACHING THE 105 TO 108 RANGE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... THE HOT CONDITIONS WITH LESS THAN NORMAL AFTERNOON SHOWER AND THUNDERSTORM COVERAGE WILL ALLOW HEAT INDICES TO NEAR THE 105 MARK ONCE AGAIN THURSDAY. OVER THE WEEKEND...INCREASING MOISTURE AND RAIN CHANCES WILL REMAIN POSSIBLE AS A TROPICAL WAVE APPROACHES THE LOCAL AREA FROM THE SOUTHEAST. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA OF INTEREST ON THE NATIONAL MAP.
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
Three trees were blown down and some damage to a mobile home occurred. The monetary damage figure provided is a rough estimate.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2010Every state in 2010This day in weather historyWarnings in Alabama, July 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 253050.