Alert archive / Florida / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 78, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 10, 1996, 5:25 PM EDT for Hernando County, Florida. It was in force for 65 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 10, 1996, 5:25 PM EDT (21:25 UTC)
- Expired
- Jul 10, 1996, 6:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Hernando County, FL
The radar
The Tampa radar (KTBW), 95 km from the middle of the area, began a volume at 21:25 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 10, 5:45 PM EDT | Thunderstorm Wind | Brooksville, 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, 9.4 hours before the alert went out and 95 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
- 308 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 875 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 10, 2:53 PM EDT, 2 hours 32 minutes earlier.
Area forecast discussion, Jul 10, 2:53 PM EDT, 2 hours 32 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL 253 PM EDT WED JUL 10 1996 NWLY FLOW ALONG THE W COAST AND N-NELY FLOW OVER INTERIOR AND ERN MOST ZNS ALONG WITH NE-SW SHEAR AXIS ACRS THE FA HAS HELPED TO POP OFF SOME ISOLATED RW'S OVER HILLSBOROUGH AND EXTREME WRN POLK COUNTIES DURING THE LAST FEW HRS...BUT SUBSIDENCE AROUND HRCN BERTHA CONTS TO LIMIT THE OVERALL AREAL COVERAGE ACRS THE FA...THUS WOULD CONT TO SUGGEST ONLY SLGT CHC CAT FOR POPS THRU THE OVERNIGHT PERIOD. AS FOR THURSDAY WX REGIME ACRS THE FA WL CONT TO HINGE HIGHLY ON THE EVENTUAL TRACK OF HRCN BERTHA (SEE LATEST TPC GUIDANCE FOR FURTHER INFO). BASED UPON CURRENT TPC OFFICIAL TRACK OF BERTHA AND REVIEW OF GRIDDED MODEL DATA...SFC TROUGH TO THE N SHOULD SAG SWD THRU THURSDAY NIGHT AS BERTHA MOVES FURTHER NWD. ALONG WITH THE TROUGH SAGGING S...SOME DRIER MID/UPR LVL AIR WL ALSO GET PULLED SWD INTO THE FA...THUS PREFER DRIER LOOKING FWC GUIDANCE OVER FAN NUMBERS THRU THE FCST PERIOD. AS FOR TMPS GUIDANCE VALUES FAIRLY CLOSE AND WOULD SUGGEST UPPER 80S FOR MOST OF THE FA. MCMICHAEL
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 5:23 PM EDT | Tornado Warning | TBW | Lee | 67 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.