Alert archive / Florida / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 49, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 29, 1996, 6:21 PM CDT for Jackson County, Florida. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 29, 1996, 6:21 PM CDT (23:21 UTC)
- Expired
- Apr 29, 1996, 7:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Jackson County, FL
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.4 hours before the alert went out and 98 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
- 1702 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 592 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- -47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTLH 292324 SVRTLH FLC063-300000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TALLAHASSEE FL 721 PM EDT (621 PM CDT) MON APR 29 1996 THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM EDT (700 PM CDT) FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST FLORIDA ...JACKSON COUNTY NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM MOVING ACROSS JACKSON COUNTY OF FLORIDA. THIS STORM IS JUST TO THE WEST OF MARIANNA AND IS MOVING NORTHEAST AT ABOUT 25 TO 30 MPH. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM.@ SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. A MOBILE HOME IS NOT A SAFE REFUGE FROM A SEVERE THUNDERSTORM...MOVE TO A MORE SUBSTANTIAL BUILDING.
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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 29, 2:50 PM CDT, 3 hours 31 minutes earlier.
Area forecast discussion, Apr 29, 2:50 PM CDT, 3 hours 31 minutes before
ALZ065>069-FLZ007>019-026>029-034-GAZ121>131-142>148-155>161-300815- AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TALLAHASSEE FL 330 PM EDT MON APR 29 1996 ETA/NGM IN GOOD AGREEMENT BRINGING STRONG COLD FRONT THRU FORECAST AREA BY 12 UTC TUESDAY. HOWEVER...LOOKS LIKE ETA UNDERPLAYS LOW-LEVEL MOISTURE/INSTABILITY ACROSS REGION. SURFACE DEWPOINTS CURRENTLY IN UPPER 60S-LOW 70S RANGE ACROSS ENTIRE AREA...AND TLH CAPE WAS ABOVE 3500 J/KG (ETA IS FORECASTING CAPES AROUND 500 J/KG ACROSS AREA TONIGHT). NGM LOOKS MORE REASONABLE WITH ITS HANDLING OF LOW-LEVEL MOISTURE/INSTABILITY. STORM RELATIVE HELICITY WILL RANGE FROM 150-200 ACROSS AREA TONIGHT...BUT WITH SUCH HIGH CAPE MENTIONING SEVERE STORMS LOOKS GOOD IN THE ZONES. ALSO AGREE WITH LATEST MIA TERMINAL FCSTS WHICH CALL FOR WIND GUSTS TO 35 KNOTS...LOW CIGS...AND LOW VSBYS WITH STORMS. LOOKS LIKE RAPID CLEARING BY 18 UTC. AS FOR TAFS...XPCT LINE OF STG/SVR TSRA TO MOV EWD ACRS FCST AREA BETWEEN 03 UTC TO 08 UTC TUE MORNING...WITH RA ENDING BY 14 UTC. FOURNIER/MOORE
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 5:15 PM CDT | Severe Thunderstorm Warning | TAE | Walton | 45 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; the sounding from the Mesonet's radiosonde archive.