Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 78, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 24, 1997, 3:55 PM EDT for Charlotte County, Florida. It was in force for 35 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
- Jun 24, 1997, 3:55 PM EDT (19:55 UTC)
- Expired
- Jun 24, 1997, 4:30 PM EDT
- In force
- 35 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Charlotte County, FL
The radar
The Tampa radar (KTBW), 100 km from the middle of the area, began a volume at 19:57 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 |
|---|---|---|---|
| Jun 24, 4:19 PM EDT | Thunderstorm Wind | Placida, FL | A boat was capsized by thunderstorm winds near Don Pedro and Little Gasparilla islands. |
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, 7.9 hours before the alert went out and 100 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
- 1382 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 688 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 35 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 Jun 24, 2:54 PM EDT, 1 hour 1 minute earlier.
Area forecast discussion, Jun 24, 2:54 PM EDT, 1 hour 1 minute before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL 250 PM EDT TUE JUN 24 1997 SUGGESTIONS...EVG POPS 40% TIL MID-EVG CSTL/30% INLAND TIL EARLY EVG. WEDNESDAY...50% CSTL/30-40% INLAND. THURSDAY...30-40% AREA WIDE. DISCUSSION...CURRENTLY SHWRS & TSTMS TREKKING TOWARD THE FCST AREA. SEA BREEZE JUST GETTING GOING RIGHT ALONG THE COAST. SHOULD ONLY MAKE ITS WAY ABOUT 5 MILES INLAND...AND THIS WILL BE THE FOCUS AS STORMS FIRST REACH FMY AREA THEN RIPPLE NORTHWARD UP THE COAST...AFFECTING VENICE-SRQ-PIE- TPA-RRF STARTING ABOUT 5PM AND ENDING ABOUT 7PM. PROBABLE RAIN TOTALS TO 2IN IN LOCAL SPOTS IN THAT "HOT ZONE". LEFTOVER LGHT RAIN FOR CSTL AREAS SHOULD BE GONE BY 9PM (EXCEPT AGREE W/JAX & TLH THAT SOME LEFTOVER PRECIP MAY LINGER TIL 11P IN BIG BEND FROM ACTIVITY WHICH WORKED ITS WAY NORTH UP THE COAST)...THEN CLEARING SKIES OVERNIGHT. .WEDNESDAY...MODELS STILL HINTING THAT COMBINATION OF SLIGHTLY DRIER AIR FROM THE EAST ALONG WITH RIDGE SINKING ON TOP OF US WILL BE LEADING TO SLIGHTLY LOWER PRECIP COVERAGE. STILL SOUTHEAST FLOW WEDNESDAY...SO ANOTHER ROUND OF LATE AFT/EVG TSTMS FOCUSED ON WEST COAST. .THURSDAY...RIDGE A LITTLE STRONGER AND FARTHER SOUTH ACROSS N-CNTRL FL. AS MLB ALREADY POINTED OUT...STEERING FLOW MAY BECOME MORE SOUTHERLY THUS DUAL SEA BREEZE PATTERN SHOULD SET UP. MAY BE LITTLE LESS STORMS AROUND AS STABILITY INCREASES SLIGHTLY. STILL...WILL BE ABLE TO CALL IT A "TYPICAL" SUMMER DAY. TEMPERATURE/POP THOUGHTS... BKV 71/92/72/94 4533 TPA 73/92/73/93 4534 FMY 74/94/74/95 3533 NASH
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 4:24 PM EDT | Severe Thunderstorm Warning | TBW | Pasco | 61 min |
| Jun 24, 4:35 PM EDT | Tornado Warning | TBW | Hillsborough | 35 min |
| Jun 24, 5:13 PM EDT | Severe Thunderstorm Warning | TBW | Pinellas | 47 min |
| Jun 24, 5:33 PM EDT | Flash Flood Warning | TBW | Pasco, Pinellas | 2 hr |
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.