A moderate east flow kept the seabreeze pinned along the coast, with thunderstorms developing along the boundary.
Every event with a place to put it. Tap one for its entry below.
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 TBW wrote it up.
A moderate east flow kept the seabreeze pinned along the coast, with thunderstorms developing along the boundary.
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 Tampa Bay, FL wrote its last area forecast discussion before the first event at Sep 7, 1:15 PM EST, 4 hours 38 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 215 PM EDT TUE SEP 7 2010 .SYNOPSIS... A SPRAWLING UPPER LOW OVER BRITISH COLUMBIA AND WA TROUGHS TO NEAR BAJA CALIFORNIA - A LOW IS OVER THE UPPER GREAT LAKES - AND A RIDGE COVERS MOST OF THE SE U.S. AND THE GULF. AT THE SURFACE...HIGH PRESSURE IS OVER THE CENTRAL ROCKIES/PLAINS - A FRONTAL BOUNDARY ARCS FROM THE SOUTHWEST DESERTS TO THE GREAT LAKES - AND HIGH PRESSURE DOMINATES MUCH OF THE EASTERN SEABOARD INCLUDING FL. && .SHORT TERM (TONIGHT - THURSDAY)... THE RIDGING ALOFT THE REGION WILL HANG IN PLACE. MEANWHILE THE HIGH PRESSURE ALONG THE EASTERN SEABOARD DROPS TO LATITUDE 30 NORTH WED AND THEN BETWEEN LATITUDE 30 AND 25 BY THU...RIDGING ACROSS FL TO THE EASTERN GULF THROUGH THE PERIOD. WHILE THE UPPER RIDGE WILL HELP KEEP TEMPERATURES RUNNING ABOVE NORMAL BY A DEGREE OR TWO THE DOMINATE FACTOR WILL BE THE SURFACE RIDGE MAINTAINING A MOIST...WITH PWAT VALUES IN THE 1.8 TO OVER 2 INCH RANGE...EASTERLY FLOW ACROSS THE STATE. THE GRADIENT DOES RELAX AS THE AXIS OF THE RIDGE SHIFTS SOUTH AND ALLOWS AN AFTERNOON SEA BREEZE TO FORM BOTH WED AND THU. AFTERNOON POPS WILL STAY IN THE SCATTERED RANGE...WITH THE BEST ODDS IN THE CENTRAL AND SOUTH WED AND THEN THE INTERIOR THU WHEN THE SEA BREEZE MAKES MORE PROGRESS INLAND. .LONG TERM (THURSDAY NIGHT THROUGH TUESDAY)...IN THE MID LEVELS WEAK HIGH PRESSURE WILL MIGRATE FROM FLORIDA TO THE WEST AND ON THE SURFACE THE WEAK RIDGE WILL REMAIN WITH A WEAK WIND PATTERN FRIDAY. SEA BREEZES WILL DRIVE AFTERNOON THUNDERSTORM ACTIVITY. BY MONDAY A COLD FRONT PUSHES INTO NORTH FLORIDA WITH MORE CONSOLIDATED AREAS OF RAINFALL NORTH BUT SCATTERED OVER THE REST OF THE AREA INTO TUESDAY. && .AVIATION... AS THE EAST COAST SEA BREEZE MERGES WITH THE WEST COAST SEA BREEZE NEAR THE WEST COAST LATER THIS AFTERNOON RAIN AND THUNDERSTORMS WILL PRODUCE SOME AREAS OF MVFR/LOCAL IFR CONDITIONS.. && .MARINE... A SURFACE RIDGE AXIS WILL DOMINATE THE WATERS AS ITS CENTER RELOCATES FROM THE MID-ATLANTIC REGION TO EAST OF FL. WINDS REMAIN EASTERLY THROUGH MOST OF THE WEEKEND...EXCEPT SHIFTING ONSHORE IN THE AFTERNOONS...AROUND 5KT TO AROUND 10KT WITH SEAS NO MORE THAN 3 FT. MAIN CONCERN WILL BE ISOLATED TO SCATTERED THUNDERSTORMS. && .FIRE WEATHER... AMPLE LOW LEVEL MOISTURE OVER THE STATE WILL PRECLUDE ANY RH CONCERNS. && .PRELIMINARY POINT TEMPS/POPS... TPA 76 91 77 91 / 20 40 20 40 FMY 75 92 75 91 / 30 40 20 50 GIF 74 92 75 93 / 20 40 20 50 SRQ 75 92 75 91 / 30 40 20 40 BKV 71 92 72 92 / 20 40 20 50 SPG 77 90 78 91 / 20 40 20 40 && .TBW WATCHES/WARNINGS/ADVISORIES... FL...NONE. GULF WATERS...NONE. && SHORT TERM/MARINE/FIRE WEATHER...09/RUDE LONG TERM/AVIATION...03/PAXTON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 527 AM EDT TUE SEP 7 2010 FLZ039-042-043-048>052-055>057-060>062-065-072130- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 527 AM EDT TUE SEP 7 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP LATER THIS AFTERNOON ALONG THE SEA BREEZE. BECAUSE OF A STRONGER EASTERLY FLOW TODAY...EXPECT BETTER STORM COVERAGE ALONG THE COAST. MAIN THREAT WITH AFTERNOON STORMS INCLUDE DEADLY CLOUD TO GROUND LIGHTNING...HEAVY RAINFALL CAUSING BRIEF LOCALIZED FLOODING AND GUSTY WINDS. ...THUNDERSTORM IMPACT... .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ...THUNDERSTORM IMPACT... SCATTERED THUNDERSTORMS CAN BE EXPECTED TO DEVELOP EACH AFTERNOON ALONG THE AFTERNOON SEA BREEZES. WITH EASTERLY FLOW GRADUALLY WEAKENING BY WEDNESDAY...THE SEA BREEZE WILL PUSH FURTHER INLAND PRODUCING BETTER STORM COVERAGE EAST OF I 75. MAIN THREAT WITH THESE STORMS INCLUDE DEADLY CLOUD TO GROUND LIGHTNING...HEAVY RAINFALL CAUSING BRIEF LOCALIZED FLOODING AND GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. BARRON
The Tampa radar (KTBW), 38 km away, was scanning. The volume nearest the first event began at 22:52 UTC.
1 funnel cloud. Local standard time, as filed.
A funnel cloud was reported in the KTPA and KPIE observations, as well as by numerous Skywarn Spotters and the public between 653 PM and 707 PM EDT.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2010Every state in 2010This day in weather historyWarnings in Florida, September 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: 260166.