Alert archive / Florida / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 38, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 25, 2002, 5:19 PM EDT for Hillsborough County, Florida. It was in force for 26 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 25, 2002, 5:19 PM EDT (21:19 UTC)
- Expired
- Jul 25, 2002, 5:45 PM EDT
- In force
- 26 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Hillsborough County, FL
The radar
The Tampa radar (KTBW), 23 km from the middle of the area, began a volume at 21:18 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 25, 5:30 PM EDT | Thunderstorm Wind 50 E | Plant City, FL | TECO reported downed power lines due to wind damage to numerous trees. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 9.3 hours before the alert went out and 23 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2670 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 769 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
475 WUUS52 KTBW 252119 SVRTBW FLC057-252145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 519 PM EDT THU JUL 25 2002 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN HILLSBOROUGH COUNTY IN FLORIDA. * UNTIL 545 PM EDT. * AT 519 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...OVER TAMPA...MOVING NORTHWEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... WEST PARK. TOWN N COUNTRY. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY. $$ 13
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jul 25, 2:05 PM EDT, 3 hours 14 minutes earlier.
Area forecast discussion, Jul 25, 2:05 PM EDT, 3 hours 14 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 205 PM EDT THU JUL 25 2002 CURRENTLY...ORIENTATION OF SURFACE RIDGE AXIS ACROSS THE N-CENTRAL PENINSULA IS ALLOWING THE WEST COAST SEA BREEZE TO PUSH INLAND FROM HERNANDO COUNTY NORTH EARLY THIS AFTERNOON...WHILE SELY FLOW FURTHER SOUTH IS DELAYING ITS ONSET. 88D RETURNS DEPICT ONGOING CONVECTION OVER LEVY AND CITRUS COUNTIES...AND AS THE AFTERNOON CONTINUES EXPECT AREAL COVERAGE TO INCREASE NORTH OF THE BAY AREA FIRST...THEN ACROSS CENTRAL AND SOUTHERN ZONES BY LATE AFTERNOON AS THE SEA BREEZE DEVELOPS FURTHER SOUTH...SO WILL WORD FOR SCATTERED EVENING POPS IN ALL ZONES. SHORT TERM(TON-SUN)...PERSISTENCE SEEMS TO BE THE BEST WAY TO GO THIS CYCLE AS LATEST MODELS SHOW LITTLE CHANGE OVER THE NEXT SEVEN DAYS. WEAK SERN U.S TROUGHINESS OF THE LAST SEVERAL DAYS WILL BE REPLACED BY A BUILDING UPPER RIDGE FROM THE ATLANTIC. ATTENDANT SFC RIDGE AXIS WILL CONTINUE TO MEANDER ABOUT THE CENTRAL PENINSULA PROVIDING ALL OF THE FA WITH A SE-SLY WIND FLOW WITH AN ONSHORE SEA BREEZE COMPONENT DEVELOPING ALONG COASTAL LOCATIONS EACH AFTERNOON. WITH PWS PROGD TO REMAIN IN THE 1.7-2 RANGE...A CONTINUATION OF SCATTERED DIURNAL SEA/ LAKE BREEZE DRIVEN CONVECTION IS EXPECTED EACH DAY THROUGH THE PERIOD. INCREASING HEIGHTS WILL MEAN SLIGHTLY ABOVE NORMAL TEMPS THROUGHOUT THE PERIOD. EXTENDED(MON-THURS)...UPPER RIDGE PROGD TO REMAIN OVER THE SERN U.S AS SURFACE RIDGE AXIS REMAINS ACROSS THE CENTRAL PENINSULA. LITTLE OVERALL CHANGE IN MOISTURE LEVELS MEANS A CONTINUATION OF SCATTERED DIURNAL POPS DURING THE AFTERNOON AND EVENING HOURS EACH DAY THROUGH THE PERIOD. MARINE...SURFACE RIDGE POSITION WILL CONTINUE TO FAVOR A LIGHT SE-SLY WIND FLOW OF LESS THAN 10 KNOTS OVER THE ADJACENT GULF WATERS OVER THE NEXT FIVE DAYS WITH ONSHORE SEA BREEZE COMPONENT DEVELOPING EACH AFTERNOON. NO HIGHLIGHTS EXPECTED. FIRE WEATHER...NO CONCERNS. PRELIMINARY CCF #S BKV 073/093 072/093 2424 TPA 078/092 078/092 2424 GIF 075/093 075/094 2424 SRQ 077/091 077/091 2424 FMY 076/093 076/093 2424 .TBW...NONE. MCMICHAEL
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 2:24 PM EDT | Severe Thunderstorm Warning | TBW | Citrus | 36 min |
| Jul 25, 2:55 PM EDT | Severe Thunderstorm Warning | TBW | Levy | 35 min |
| Jul 25, 3:24 PM EDT | Severe Thunderstorm Warning | TBW | Sarasota | 36 min |
| Jul 25, 4:20 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 25 min |
| Jul 25, 4:26 PM EDT | Special Marine Warning | TBW | 64 min | |
| Jul 25, 4:41 PM EDT | Severe Thunderstorm Warning | TBW | Manatee | 34 min |
| Jul 25, 4:45 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 30 min |
| Jul 25, 4:51 PM EDT | Special Marine Warning | TBW | 24 min | |
| Jul 25, 4:54 PM EDT | Special Marine Warning | TBW | 51 min | |
| Jul 25, 5:52 PM EDT | Special Marine Warning | TBW | 53 min | |
| Jul 25, 5:52 PM EDT | Severe Thunderstorm Warning | TBW | Pinellas | 38 min |
| Jul 25, 6:43 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 32 min |
| Jul 25, 6:56 PM EDT | Severe Thunderstorm Warning | TBW | Hardee | 34 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2002Every severe thunderstorm warning in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.