Alert archive / Florida / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 15, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 30, 1996, 2:30 PM EST for Pasco County, Polk County, Florida. It was in force for 45 min. 9 reports 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
- Mar 30, 1996, 2:30 PM EST (19:30 UTC)
- Expired
- Mar 30, 1996, 3:15 PM EST
- In force
- 45 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
Counties Pasco County, FL, Polk County, FL
The radar
The Tampa radar (KTBW), 57 km from the middle of the area, began a volume at 19:30 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 |
|---|---|---|---|
| Mar 30, 2:40 PM EST | Thunderstorm Wind | Lakeland, FL | |
| Mar 30, 2:45 PM EST | Hail 0.75 | Zephyrhills, FL | |
| Mar 30, 2:45 PM EST | Hail 2.75 | Mulberry, FL | |
| Mar 30, 2:45 PM EST | Thunderstorm Wind | Mulberry, FL | |
| Mar 30, 2:50 PM EST | Hail 1.75 | Bartow, FL | |
| Mar 30, 2:50 PM EST | Hail 1.75 | Lakeland, FL | |
| Mar 30, 3:15 PM EST | Thunderstorm Wind 75 | Bartow, FL | |
| Mar 30, 3:15 PM EST | Hail 2.75 | Bartow, FL | |
| Mar 30, 3:25 PM EST | Hail 1.25 | Bartow, FL |
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, 7.5 hours before the alert went out and 57 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
- 1385 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Mar 30, 9:33 AM EST, 4 hours 57 minutes earlier.
Area forecast discussion, Mar 30, 9:33 AM EST, 4 hours 57 minutes before
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</html>In the hours before
Special weather statement, Mar 30, 11:35 AM EST, 2 hours 55 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-504-505-301900- WEST CENTRAL AND SOUTHWEST FLORIDA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 1135 AM EST SAT MAR 30 1996 ...SLIGHT CHANCE FOR SEVERE THUNDERSTORMS FOR WEST CENTRAL FLORIDA... THE LOWER LEVELS OF THE ATMOSPHERE ARE WARM AND UNSTABLE...WHILE COLD AIR ALOFT COMBINED WITH AN UPPER LEVEL DISTURBANCE MOVING ACROSS THE SOUTHEASTERN U.S. ALL ADD UP TO SHOWER AND THUNDERSTORM DEVELOPMENT. SOME MAY BECOME SEVERE WITH HAIL...LOCALLY HEAVY RAIN AND GUSTY WINDS. THUNDERSTORMS OVER THE NORTHEAST GULF THIS MORNING WILL AFFECT AREAS MAINLY NORTH OF A BROOKSVILLE TO ORLANDO LINE THIS AFTERNOON WITH WIDESPREAD RAINFALL AND EMBEDDED STRONGER STORMS. FROM THE TAMPA AREA SOUTH TO FORT MYERS...DAYTIME HEATING WILL RESULT IN THE FORMATION OF A SEA BREEZE. THIS SEA BREEZE WILL BE A FOCUS FOR ADDITIONAL THUNDERSTORM DEVELOPMENT EARLY THIS AFTERNOON. THESE STORMS WILL THEN PUSH EAST...AFFECTING INLAND COUNTIES LATE THIS AFTERNOON INTO EARLY EVENING. SOME OF THESE THUNDERSTORMS MAY ALSO APPROACH SEVERE LIMITS. THE MAIN THREAT FROM THE STRONGER THUNDERSTORMS TODAY WILL BE LARGE HAIL AND STRONG WIND GUSTS OVER 40 MPH. ALL THUNDERSTORMS WILL ALSO PRODUCE VERY HEAVY RAINFALL AND DEADLY LIGHTNING. PERSONS ACROSS THE AREA SHOULD REMAIN ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER AND MOVE INDOORS AS THUNDERSTORMS APPROACH. BOATERS SHOULD BE PREPARED TO RETURN TO PORT AS THE THUNDERSTORMS OVER THE GULF APPROACH THE COAST. EMERGENCY MANAGEMENT AND STORM SPOTTERS ACROSS THE REGION ARE ASKED TO RELAY ANY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN RUSKIN. NASH
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 1:49 PM EST | Severe Thunderstorm Warning | TBW | Hillsborough | 41 min |
| Mar 30, 3:15 PM EST | Severe Thunderstorm Warning | TBW | Polk | 45 min |
| Mar 30, 3:25 PM EST | Tornado Warning | TBW | Polk | 50 min |
| Mar 30, 3:52 PM EST | Tornado Warning | TBW | Polk | 53 min |
| Mar 30, 3:58 PM EST | Severe Thunderstorm Warning | TBW | Hernando | 47 min |
| Mar 30, 4:17 PM EST | Tornado Warning | TBW | Hernando | 43 min |
| Mar 30, 4:22 PM EST | Severe Thunderstorm Warning | TBW | Levy | 38 min |
| Mar 30, 4:40 PM EST | Severe Thunderstorm Warning | TBW | Sumter | 50 min |
| Mar 30, 4:49 PM EST | Severe Thunderstorm Warning | TBW | Citrus | 56 min |
| Mar 30, 4:58 PM EST | Tornado Warning | TBW | Sumter | 47 min |
| Mar 30, 5:48 PM EST | Severe Thunderstorm Warning | TBW | Hernando, Sumter | 42 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1996Every severe thunderstorm warning in 1996
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.