Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 52, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at May 15, 1997, 2:32 PM CDT for Holmes County, Florida. It was in force for 58 min. 2 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
- May 15, 1997, 2:32 PM CDT (19:32 UTC)
- Expired
- May 15, 1997, 3:30 PM CDT
- In force
- 58 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Holmes County, FL
The radar
The Eglin Afb radar (KEVX), 35 km from the middle of the area, began a volume at 19:34 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 |
|---|---|---|---|
| May 15, 3:22 PM CDT | Hail 1.75 | Bonifay, FL | |
| May 15, 3:30 PM CDT | Thunderstorm Wind | Noma, 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
Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 7.5 hours before the alert went out and 79 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
- 991 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTLH 151935 RRA SVRTLH FLC059-152030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TALLAHASSEE FL 332 PM EDT (232 PM CDT) THU MAY 15 1997 THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM EDT (330 PM CDT) FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST FLORIDA ...HOLMES COUNTY AT 232 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF ESTO MOVING TO THE SOUTHEAST AT 25 MPH. SEVERE THUNDERSTORMS PRODUCE WINDS OF 58 MPH OR HIGHER... LARGE HAIL... DANGEROUS LIGHTNING AND VERY HEAVY RAIN. IF YOU ARE IN THE PATH OF THIS STORM... GO TO A SAFE PLACE IMMEDIATELY.
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 May 15, 1:53 AM CDT, 12 hours 39 minutes earlier.
Area forecast discussion, May 15, 1:53 AM CDT, 12 hours 39 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TALLAHASSEE FL 245 AM EDT THU MAY 15 1997 PERSISTENT LARGE UPR TROF OVR ERN HALF OF COUNTRY WILL CONTINUE TO DOMINATE WX PATN OVR THE EAST THRU FRIDAY...ALTHO STG NRN STREAM S/WV PROGRESSING THRU TROF WILL MOV TROF AXIS FM GT LAKES/N CNTRL GULF COAST TO ERN SEABOARD BY END OF PD. HOWEVER...THIS S/WV WILL REMAIN WELL TO OUR N. OVR SERN STATES...MAIN FEATURE OF INTEREST IS CDFNT ANALYZED FM NRN LA TO NRN AL AT 06Z. THIS BNDRY WILL CONTINUE MOVG SEWD TODAY AND SHOULD BE DRAPED ACRS FL PNHNDL/S GA BY SUNSET. HOWEVER...CDFNT WILL NOT HAVE MUCH MOISTURE TO WORK WITH AND ETA MDL DOES NOT SHOW A TREMENDOUS AMT OF LLVL MOISTURE CONVERGENCE. THESE FACTORS WOULD SUGGEST A FAIRLY LOW PRECIP THREAT...A VIEW SHARED BY FWC GUIDANCE. HOWEVER...WHAT REMAINS TO BE SEEN IS PSBL SEABRZ INTERACTION THIS AFTN...ESPECIALLY ACRS FL PNHNDL. PROGRESSIVE SEABRZ DVLPD YESTERDAY AFTN ON A DAY THAT DID NOT LOOK ESPECIALLY FAVORABLE IN MDL GUIDANCE. LATEST ETA MDL LOOKS A LITTLE BETTER W.R.T. SEABRZ TODAY. WITH THAT IN MIND...HAVE NO PROBLEM KEEPING PRECIP PROBABILITIES IN THE 20 TO 30 PCT RANGE AS CURRENTLY ADVERTISED AND AS SEEN IN FAN GUIDANCE. CDFNT SHOUL D MOV SE OF FCST AREA BY LATE THURSDAY EVE...AFTER WHICH HI PRES WILL BEGIN TO BUILD BACK INTO AREA. MOORE
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 2:42 PM CDT | Severe Thunderstorm Warning | TAE | Walton | 63 min |
| May 15, 2:59 PM CDT | Severe Thunderstorm Warning | TAE | Jackson | 61 min |
| May 15, 3:32 PM CDT | Severe Thunderstorm Warning | TAE | Holmes | 28 min |
| May 15, 3:55 PM CDT | Severe Thunderstorm Warning | TAE | Gadsden | 65 min |
| May 15, 4:59 PM CDT | Severe Thunderstorm Warning | TAE | Leon | 61 min |
| May 15, 5:32 PM CDT | Severe Thunderstorm Warning | TAE | Jefferson | 43 min |
| May 15, 6:09 PM CDT | Severe Thunderstorm Warning | TAE | Madison, Taylor | 66 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1997Every severe thunderstorm warning in 1997
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.