Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 113, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 15, 1997, 5:20 PM EDT for Highlands County, Florida. It was in force for 55 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 15, 1997, 5:20 PM EDT (21:20 UTC)
- Expired
- Jul 15, 1997, 6:15 PM EDT
- In force
- 55 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Highlands County, FL
The radar
The Melbourne radar (KMLB), 109 km from the middle of the area, began a volume at 21:23 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 15, 5:37 PM EDT | Thunderstorm Wind | Sebring, FL | Thunderstorm winds downed several trees and power lines in east Sebring. |
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 112 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
- 1593 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 943 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -2 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 KTBW 152124 RRA SVRTBW FLC055-152215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 520 PM EDT TUE JUL 15 1997 THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL FLORIDA ...HIGHLANDS COUNTY DOPPLAR RADAR INDICATED THAT A SEVERE THUNDERSTORM HAS DEVELOPED JUST NORTHEAST OF SEBRING. THE STORM IS MOVING VERY LITTLE. SEVERAL OTHER STRONG STORMS ARE LOCATED ACROSS THE COUNTY AND THEY COULD BECOME SEVERE WITH LITTLE NOTICE. BY DEFINITION...SEVERE THUNDERSTORMS HAVE WINDS OF 58 MPH OR GREATER AND/OR DIME SIZE HAIL OR LARGER. MOBILE HOMES ARE NOT SAFE! IF THIS STORM APPROACHES YOUR AREA...GO TO A REINFORCED BUILDING AND STAY THERE UNTIL THE STORM PASSES. THE NATIONAL WEATHER SERVICE IN RUSKIN REQUESTS THAT SKYWARN UNITS IN THE COUNTY BE ACTIVATED AND FORWARD ALL SIGNIFICANT WEATHER REPORTS TO OUR OFFICE.
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 5:40 PM EDT | Severe Thunderstorm Warning | TBW | Pasco | 65 min |
| Jul 15, 5:58 PM EDT | Severe Thunderstorm Warning | TBW | Lee | 62 min |
| Jul 15, 6:37 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 68 min |
| Jul 15, 7:41 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 64 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.