Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 157, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Oct 27, 1997, 10:01 AM EST for Polk County, Florida. It was in force for 29 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
- Oct 27, 1997, 10:01 AM EST (15:01 UTC)
- Expired
- Oct 27, 1997, 10:30 AM EST
- In force
- 29 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Polk County, FL
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 27, 10:00 AM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 3.0 hours before the alert went out and 74 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
- 2501 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 494 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 2.3
- Supercell composite
- 8.7
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 Oct 27, 9:25 AM EST, 36 minutes earlier.
Area forecast discussion, Oct 27, 9:25 AM EST, 36 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>In the hours before
Special weather statement, Oct 27, 6:00 AM EST, 4 hours 1 minute before
FLZ039-042-043-048>052-055>057-060>062-065-504-505-271600- WEST CENTRAL AND SOUTHWEST FLORIDA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 600 AM EST MON OCT 27 1997 ...SLIGHT RISK FOR SEVERE THUNDERSTORMS FOR MUCH OF WEST CENTRAL FLORIDA SOUTH OF BROOKSVILLE TO NAPLES... AN IMPRESSIVE LINE OF THUNDERSTORMS ACROSS THE NORTH CENTRAL PENINSULA WILL CONTINUE TO PUSH SOUTHEASTWARD AT 15 TO 20 MPH THROUGH WEST CENTRAL TO SOUTHWEST FLORIDA TODAY. THUNDERSTORMS ARE GENERATING IN ADVANCE OF A COLD FRONT MOVING THROUGH THE SOUTHEASTERN U.S. HEAVIER THUNDERSTORMS WILL GENERATE GUSTY WINDS OF 30 TO 40 MPH... FREQUENT DANGEROUS LIGHTNING...AND DOWNPOURS OF RAIN. THERE IS A RISK FOR ISOLATED THUNDERSTORMS TO BECOME NEAR SEVERE WITH THE POTENTIAL FOR A DAMAGING WIND GUST OF ISOLATED BRIEF TORNADO AS THE INITIAL HEAVIEST THUNDERSTORMS AFFECT A GIVEN AREA. RESIDENTS IN THE TAMPA BAY AREA MAY WANT TO PLAN AHEAD FOR THUNDERSTORMS PUSHING INTO THE METROPOLITAN AREA FROM 7AM TO 910AM THIS MORNING...SO MORNING COMMUTERS SHOULD PLAN ACCORDINGLY. SOME PONDING OF WATER IN ROADS AND INTERSECTIONS IS POSSIBLE DURING THE MID TO LATE MORNING HOURS. RAINFALL AMOUNTS SHOULD AVERAGE BETWEEN 1.5 AND TWO INCHES. THUNDERSTORMS ARE NOT EXPECTED INTO THE FORT MYERS AREA UNTIL AROUND NOON. MARINE SMALL CRAFT OPERATORS SHOULD REMAIN IN PORT. ALL SHOULD CONTINUE TO MONITOR THEIR RADIO...TELEVISION OR NOAA WEATHER RADIO FOR FURTHER WEATHER STATEMENTS. RITTENBERRY
Special weather statement, Oct 27, 6:00 AM EST, 4 hours 1 minute before
FLZ039-042-043-048>052-055>057-060>062-065-504-505-271600- WEST CENTRAL AND SOUTHWEST FLORIDA THUNDERSTORM OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 600 AM EST MON OCT 27 1997 ...SLIGHT RISK FOR SEVERE THUNDERSTORMS FOR MUCH OF WEST CENTRAL AND SOUTHWEST FLORIDA BETWEEN BROOKSVILLE AND NAPLES... AN IMPRESSIVE LINE OF THUNDERSTORMS ACROSS THE NORTH CENTRAL PENINSULA WILL CONTINUE TO PUSH SOUTHEASTWARD AT 15 TO 20 MPH THROUGH WEST CENTRAL TO SOUTHWEST FLORIDA TODAY. THUNDERSTORMS ARE GENERATING IN ADVANCE OF A COLD FRONT MOVING THROUGH THE SOUTHEASTERN U.S. HEAVIER THUNDERSTORMS WILL GENERATE GUSTY WINDS OF 30 TO 40 MPH... FREQUENT DANGEROUS LIGHTNING...AND DOWNPOURS OF RAIN. THERE IS A RISK FOR ISOLATED THUNDERSTORMS TO BECOME NEAR SEVERE WITH THE POTENTIAL FOR A DAMAGING WIND GUST OR AN ISOLATED BRIEF TORNADO AS THE INITIAL HEAVIEST THUNDERSTORMS AFFECT A GIVEN AREA. RESIDENTS IN THE TAMPA BAY AREA MAY WANT TO PLAN AHEAD FOR THUNDERSTORMS PUSHING INTO THE METROPOLITAN AREA FROM 7AM TO 10AM THIS MORNING...SO MORNING COMMUTERS SHOULD PLAN ACCORDINGLY. SOME PONDING OF WATER IN ROADS AND INTERSECTIONS IS POSSIBLE DURING THE MID TO LATE MORNING HOURS. RAINFALL AMOUNTS SHOULD AVERAGE BETWEEN 1.5 AND TWO INCHES. THUNDERSTORMS ARE NOT EXPECTED INTO THE FORT MYERS AREA UNTIL AROUND NOON. MARINE SMALL CRAFT OPERATORS SHOULD REMAIN IN PORT. ALL SHOULD CONTINUE TO MONITOR THEIR RADIO...TELEVISION OR NOAA WEATHER RADIO FOR FURTHER WEATHER STATEMENTS. RITTENBERRY
Special weather statement, Oct 27, 6:09 AM EST, 3 hours 52 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-504-505-271600- WEST CENTRAL AND SOUTHWEST FLORIDA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 600 AM EST MON OCT 27 1997 ...SLIGHT RISK FOR SEVERE THUNDERSTORMS FOR MUCH OF WEST CENTRAL FLORIDA SOUTH OF BROOKSVILLE TO NAPLES... AN IMPRESSIVE LINE OF THUNDERSTORMS ACROSS THE NORTH CENTRAL PENINSULA WILL CONTINUE TO PUSH SOUTHEASTWARD AT 15 TO 20 MPH THROUGH WEST CENTRAL TO SOUTHWEST FLORIDA TODAY. THUNDERSTORMS ARE GENERATING IN ADVANCE OF A COLD FRONT MOVING THROUGH THE SOUTHEASTERN U.S. HEAVIER THUNDERSTORMS WILL GENERATE GUSTY WINDS OF 30 TO 40 MPH... FREQUENT DANGEROUS LIGHTNING...AND DOWNPOURS OF RAIN. THERE IS A RISK FOR ISOLATED THUNDERSTORMS TO BECOME NEAR SEVERE WITH THE POTENTIAL FOR A DAMAGING WIND GUST OF ISOLATED BRIEF TORNADO AS THE INITIAL HEAVIEST THUNDERSTORMS AFFECT A GIVEN AREA. RESIDENTS IN THE TAMPA BAY AREA MAY WANT TO PLAN AHEAD FOR THUNDERSTORMS PUSHING INTO THE METROPOLITAN AREA FROM 7AM TO 910AM THIS MORNING...SO MORNING COMMUTERS SHOULD PLAN ACCORDINGLY. SOME PONDING OF WATER IN ROADS AND INTERSECTIONS IS POSSIBLE DURING THE MID TO LATE MORNING HOURS. RAINFALL AMOUNTS SHOULD AVERAGE BETWEEN 1.5 AND TWO INCHES. THUNDERSTORMS ARE NOT EXPECTED INTO THE FORT MYERS AREA UNTIL AROUND NOON. MARINE SMALL CRAFT OPERATORS SHOULD REMAIN IN PORT. ALL SHOULD CONTINUE TO MONITOR THEIR RADIO...TELEVISION OR NOAA WEATHER RADIO FOR FURTHER WEATHER STATEMENTS. RITTENBERRY
Special weather statement, Oct 27, 6:18 AM EST, 3 hours 43 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-504-505-271600- WEST CENTRAL AND SOUTHWEST FLORIDA THUNDERSTORM OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 600 AM EST MON OCT 27 1997 ...SLIGHT RISK FOR SEVERE THUNDERSTORMS FOR MUCH OF WEST CENTRAL AND SOUTHWEST FLORIDA BETWEEN BROOKSVILLE AND NAPLES... AN IMPRESSIVE LINE OF THUNDERSTORMS ACROSS THE NORTH CENTRAL PENINSULA WILL CONTINUE TO PUSH SOUTHEASTWARD AT 15 TO 20 MPH THROUGH WEST CENTRAL TO SOUTHWEST FLORIDA TODAY. THUNDERSTORMS ARE GENERATING IN ADVANCE OF A COLD FRONT MOVING THROUGH THE SOUTHEASTERN U.S. HEAVIER THUNDERSTORMS WILL GENERATE GUSTY WINDS OF 30 TO 40 MPH... FREQUENT DANGEROUS LIGHTNING...AND DOWNPOURS OF RAIN. THERE IS A RISK FOR ISOLATED THUNDERSTORMS TO BECOME NEAR SEVERE WITH THE POTENTIAL FOR A DAMAGING WIND GUST OR AN ISOLATED BRIEF TORNADO AS THE INITIAL HEAVIEST THUNDERSTORMS AFFECT A GIVEN AREA. RESIDENTS IN THE TAMPA BAY AREA MAY WANT TO PLAN AHEAD FOR THUNDERSTORMS PUSHING INTO THE METROPOLITAN AREA FROM 7AM TO 10AM THIS MORNING...SO MORNING COMMUTERS SHOULD PLAN ACCORDINGLY. SOME PONDING OF WATER IN ROADS AND INTERSECTIONS IS POSSIBLE DURING THE MID TO LATE MORNING HOURS. RAINFALL AMOUNTS SHOULD AVERAGE BETWEEN 1.5 AND TWO INCHES. THUNDERSTORMS ARE NOT EXPECTED INTO THE FORT MYERS AREA UNTIL AROUND NOON. MARINE SMALL CRAFT OPERATORS SHOULD REMAIN IN PORT. ALL SHOULD CONTINUE TO MONITOR THEIR RADIO...&TELEVISION OR NOAA WEATHER RADIO FOR FURTHER WEATHER STATEMENTS. RITTENBERRY
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 10:02 PM EST | Severe Thunderstorm Warning | TBW | Levy | 88 min |
| Oct 27, 7:08 AM EST | Severe Thunderstorm Warning | TBW | Pasco, Pinellas | 62 min |
| Oct 27, 8:24 AM EST | Severe Thunderstorm Warning | TBW | Pinellas | 51 min |
| Oct 27, 8:34 AM EST | Tornado Warning | TBW | Pinellas | 26 min |
| Oct 27, 8:46 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Pasco | 44 min |
| Oct 27, 8:46 AM EST | Severe Thunderstorm Warning | TBW | Manatee | 44 min |
| Oct 27, 9:00 AM EST | Tornado Warning | TBW | Hillsborough | 30 min |
| Oct 27, 9:15 AM EST | Tornado Warning | TBW | Polk | 45 min |
| Oct 27, 10:27 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Manatee | 48 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; the sounding from the Mesonet's radiosonde archive.