A weak trough passing through northern Florida intensified afternoon sea breeze thunderstorms. One of these storms produced wind gusts estimated at 40 to 50 MPH that damaged and awning an knocked power lines down.
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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 TBW wrote it up.
A weak trough passing through northern Florida intensified afternoon sea breeze thunderstorms. One of these storms produced wind gusts estimated at 40 to 50 MPH that damaged and awning an knocked power lines down.
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 Jun 21, 9:36 AM EST, 2 hours 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 1036 AM EDT FRI JUN 21 2013 .DISCUSSION... THE STALLED FRONTAL BOUNDARY WILL REMAIN IN PLACE ACROSS NORTHERN FLORIDA TODAY WITH HIGH PRESSURE RIDGING ACROSS SOUTHERN FLORIDA KEEPING A S/SW FLOW ACROSS MUCH OF THE AREA. THE FRONTAL BOUNDARY WILL BEGIN TO LIFT/DISSIPATE TONIGHT AS THE RIDGE AXIS LIFTS NORTH. THIS WILL ALLOW FOR EASTERLY WINDS FOR THE WEEKEND WITH AN AFTERNOON SEABREEZE DEVELOPING EACH DAY ALONG THE COAST. SCATTERED TO NUMEROUS THUNDERSTORMS WILL ALSO BE POSSIBLE EACH DAY WITH THE HIGHEST COVERAGE AND STRONGEST STORMS IN THE AFTERNOON AND EVENING HOURS. NO UPDATES PLANNED AS FORECAST IS GENERALLY ON TRACK. && .AVIATION... GENERALLY VFR CONDITIONS EXPECTED. VCTS INCLUDED FOR ALL SITES STARTING LATE MORNING AND CONTINUING THROUGH THE EVENING. && .MARINE... LIGHT S/SW FLOW IS IN PLACE WITH SEAS GENERALLY BELOW 2 FEET. WINDS WILL REMAIN LIGHT OUTSIDE OF THUNDERSTORMS AND BECOME MORE WESTERLY THROUGH THE AFTERNOON. NO MAJOR CHANGES TO THE UPDATE AS THE FORECAST IS GENERALLY ON TRACK. && .TBW WATCHES/WARNINGS/ADVISORIES... FL...NONE. GULF WATERS...NONE. && SHORT TERM/MARINE/FIRE WEATHER...24/COLSON LONG TERM/AVIATION...05/CARLISLE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 516 AM EDT FRI JUN 21 2013 FLZ039-042-043-048>052-055>057-060>062-065-GMZ830-850-853-856-870- 873-876-212130- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DESOTO-CHARLOTTE-LEE- TAMPA BAY WATERS-TARPON SPRINGS TO SUWANNEE RIVER OUT 20 NM- ENGLEWOOD TO TARPON SPRINGS OUT 20 NM- BONITA BEACH TO ENGLEWOOD OUT 20 NM- TARPON SPRINGS TO SUWANNEE RIVER OUT 20 TO 60 NM- ENGLEWOOD TO TARPON SPRINGS OUT 20 TO 60 NM- BONITA BEACH TO ENGLEWOOD OUT 20 TO 60 NM- 516 AM EDT FRI JUN 21 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... MOIST AND UNSTABLE AIR WILL PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS ACROSS THE AREA TODAY. WITH EAST FLOW...THE GREATEST STORM COVERAGE WILL BE ALONG THE WEST COAST. THE PRIMARY THREATS WILL BE STRONG GUSTY WINDS...FREQUENT LIGHTNING...SMALL HAIL...AND LOCALLY HEAVY RAINFALL WITH MINOR FLOODING. ADDITIONALLY...ISOLATED WATER SPOUTS AND TORNADOES WILL BE POSSIBLE. ...FLOOD IMPACT... WITH VERY SLOW MOVING STORMS EXPECTED...LOCALIZED AREAS COULD SEE HEAVY RAINFALL TOTALS. FLOODING OF STREETS AND LOW LYING AREAS WILL BE POSSIBLE THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. ...THUNDERSTORM IMPACT... A MOIST AND UNSTABLE AIRMASS WILL ALLOW FOR AFTERNOON AND EVENING THUNDERSTORMS EACH DAY. EAST TO SOUTHEAST FLOW WILL FAVOR THUNDERSTORMS DEVELOPING ALONG AND JUST WEST OF INTERSTATE 75. THE PRIMARY THREATS WILL BE STRONG GUSTY WINDS...LOCALIZED HEAVY RAINFALL...FREQUENT CLOUD TO GROUND LIGHTNING...AND SMALL HAIL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. FLEMING
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1236 PM EDT FRI JUN 21 2013
FLZ050-211730-
PINELLAS-
1236 PM EDT FRI JUN 21 2013
...STRONG THUNDERSTORMS WILL AFFECT CENTRAL AND SOUTHERN PINELLAS
COUNTY...
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES LOCATED NEAR
SAWGRASS LAKE PARK...OR NEAR PINELLAS PARK...MOVING SOUTH AT 5 MPH...
WILL AFFECT SAINT PETE CLEARWATER AIRPORT...HIGHPOINT...SAINT
PETERSBURG AND PINELLAS PARK...UNTIL 130 PM EDT.
THIS INCLUDES INTERSTATE 275 BETWEEN EXITS 19 AND 32.
GUSTY WINDS 35 TO 45 MPH WILL OCCUR.
&&
LAT...LON 2793 8268 2792 8263 2789 8261 2779 8259
2774 8263 2775 8275 2792 8279
TIME...MOT...LOC 1636Z 351DEG 5KT 2783 8268The Tampa radar (KTBW), 32 km away, was scanning. The volume nearest the first event began at 16:45 UTC.
1 thunderstorm wind. Local standard time, as filed.
Damage was reported by the public to an awning and powerlines. Wind gusts were estimated to be 40 to 50 MPH with the storm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2013Every state in 2013This day in weather historyWarnings in Florida, June 2013
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: 455291.