Alert archive / Florida / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 21, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 3, 1991, 10:52 AM EST for 5 counties in Florida. It was in force for 68 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
- Mar 3, 1991, 10:52 AM EST (15:52 UTC)
- Expired
- Mar 3, 1991, 12:00 PM EST
- In force
- 68 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
Counties DeSoto County, FL, Hardee County, FL, Hillsborough County, FL, Manatee County, FL, Polk County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 3, 11:09 AM EST | Hail 0.75 | Polk, FL | |
| Mar 3, 11:09 AM EST | Thunderstorm Wind 0 | Polk, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 3.9 hours before the alert went out and 41 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
- 1186 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 661 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 344 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTBW 031555 SVRTBW FLC027-049-105-015-057-081-115-071-031700- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 1052 AM EST SUN MAR 3 1991 THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL NOON EST FOR PEOPLE... IN CENTRAL FLORIDA ...DESOTO COUNTY...HARDEE COUNTY...POLK COUNTY IN WEST CENTRAL FLORIDA ...WESTERN CHARLOTTE COUNTY...EASTERN HILLSBOROUGH COUNTY ...MANATEE COUNTY...SARASOTA COUNTY...WESTERN LEE COUNTY AND FOR THE COASTAL WATERS FROM... ...LONG BOAT KEY TO VENICE ...VENICE TO BOCA GRANDE ...BOCA GRANDE TO FORT MYERS BEACH ...FORT MYERS BEACH TO BONITA BEACH A LINE OF SEVERE THUNDERSTORM WAS DETECTED BY RADAR FROM POLK COUNTY TO 30 MPILES WEST OF SANIBEL ISLAND... MOVING EAST AT 35 MPH. DAMAGING WINDS AND SEVERAL TORNADOES HAVE BEEN OBSERVED EARLIER THIS MORNING. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. CARS AND MOBILE HOMES ARE NOT SAFE. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM MOVE TO A REINFORCED BUILDING. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. IF YOU SEE A TORNADO... WATERSPOUT..c. HAIL OR DAMAGING WIND... CALL THE WEST CENTRAL AND SOUTHWEST FLORIDA SEVERE WEATHER LINE AT 1-800-282-5584.
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.
In the hours before
Special weather statement, Mar 3, 7:43 AM EST, 3 hours 9 minutes before
FLZ006-009>022-031340- SPECIAL WEATHER AND MARINE WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 730 AM EST SUN MAR 03 1991 ...A TORNADO WATCH IS IN EFFECT UNTIL SUNDAY MORNING AT 12 PM EST FOR PARTS OF NORTH...ALL OF CENTRAL...SOUTH CENTRAL FLORIDA... ...A MARINE WARNING IS IN EFFECT UNTIL 915 AM FOR THE COASTAL WATERS FROM LEVY COUNTY SOUTH TO SARASOTA COUNTY... THIS STATEMENT IS FOR CITRUS...LEVY...SUMTER...HERNANDO...PASCO...POLK... HILLSBOROUGH...PINELLAS...MANATEE...SARASOTA...HARDEE...DESOTO...AND HIGHLANDS COUNTIES... AT 730 AM...RADAR INDICATED A SEVERE THUNDERSTORM OVER THE EAST GULF 50 MILES WEST OF ST PETERSBURG. THIS THUNDERSTORM...AND OTHER SCATTERED SHOWERS AND THUNDERSTORMS...WAS EMBEDDED IN A LARGE AREA OF RAIN THAT EXTENDED FROM NEAR GAINESVILLE...SOUTHWEST TO TARPON SPRINGS...THEN OUT OVER THE EAST GULF FOR OVER 180 MILES. THE HEAVIEST RAINFALL WAS IN A BROAD BAND THAT EXTENDED FROM HOMOSASSA...SOUTHWEST OVER THE GULF FOR 140 MILES. MOVEMENT WAS NORTHEAST AT 45 MILES AN HOUR. ELSEWHERE...PATCHES OF LIGHT RAIN WERE JUST NORTH OF LAKE OKEECHOBEE ...AND OVER THE NORTHERN EVERGLADES. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADO DEVELOPMENT IN AND CLOSE TO THE WATCH AREA. RESIDENTS IN AND NEAR THE WATCH AREA ARE URGED TO TAKE IMMEDIATE PRECAUTIONS IN CASE DAMAGING WEATHER OCCURS IN YOUR AREA. BE READY TO SEEK SAFE SHELTER IN AN INTERIOR ROOM OF A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH.
Special weather statement, Mar 3, 8:42 AM EST, 2 hours 10 minutes before
FLZ006-009>022-031440- SPECIAL WEATHER AND MARINE WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 835 AM EST SUN MAR 03 1991 ...A TORNADO WATCH IS IN EFFECT UNTIL SUNDAY MORNING AT 12 PM EST FOR PARTS OF NORTH...ALL OF CENTRAL...SOUTH CENTRAL FLORIDA... ...A MARINE WARNING IS IN EFFECT UNTIL 915 AM FOR THE COASTAL WATERS FROM LEVY COUNTY SOUTH TO SARASOTA COUNTY... THIS STATEMENT IS FOR CITRUS...LEVY...SUMTER...HERNANDO...PASCO...POLK... HILLSBOROUGH...PINELLAS...MANATEE...SARASOTA...HARDEE...DESOTO...AND HIGHLANDS COUNTIES... AT 830 AM...RADAR INDICATED SEVERAL STRONG THUNDERSTORMS OVER THE EAST GULF...ONE WAS 40 MILES WEST OF ST PETERSBURG.AND ANOTHER ONE 75 MILES WEST OF VENICE. THESE STORMS WERE PART OF AN AREA OF SHOWERS AND THUNDERSTORMS THAT WAS FROM EAST OF GAINESVILLE TO WEST OF ORLANDO... CONTINUED ACROSS THE STATE FROM CEDAR KEY TO ST. PETERSBURG...THEN OUT OVER THE EAST GULF WATERS...FROM 50 TO OVER 100 MILES OFFSHORE FROM CEDAR KEY TO CAPTIVA. MOVEMENT WAS TO THE NORTHEAST AT 45 MILES AN HOUR. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADO DEVELOPMENT IN AND CLOSE TO THE WATCH AREA. RESIDENTS IN AND NEARW THE WATCH AREA ARE URGED TO TAKE IMMEDIATE PRECAUTIONS IN CASE DAMAGING WEATHER OCCURS IN YOUR AREA. BE READY TO SEEK SAFE SHELTER IN AN INTERIOR ROOM OF A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH.
Special weather statement, Mar 3, 9:39 AM EST, 1 hour 13 minutes before
FLZ006-009>022-031540- SPECIAL WEATHER AND MARINE WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 935 AM EST SUN MAR 03 1991 ...A TORNADO WATCH IS IN EFFECT UNTIL SUNDAY MORNING AT 12 PM EST FOR PARTS OF NORTH...ALL OF CENTRAL...SOUTH CENTRAL FLORIDA... ...A MARINE WARNING IS IN EFFECT UNTIL 915 AM FOR THE COASTAL WATERS FROM LEVY COUNTY SOUTH TO SARASOTA COUNTY... THIS STATEMENT IS FOR CITRUS...LEVY...SUMTER...HERNANDO...PASCO...POLK... HILLSBOROUGH...PINELLAS...MANATEE...SARASOTA...HARDEE...DESOTO...AND HIGHLANDS COUNTIES... AT 930 AM...RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS...FROM NORTHERN CITRUS COUNTY TO 50 MILES OFFSHORE FROM SARASOTA. THIS LINE OF THUNDERSTORMS AREA PART OF AN AREA OF SHOWERS AND THUNDERSTORMS...THAT WAS OVER NORTH AND WEST CENTRAL PART OF THE STATE AND THE EAST GULF WATERS. THE AREA WAS 100 MILES WIDE AND THE LEADING EDGE OF THE AREA WAS FROM WEST OF DAYTON BEACH TO WEST OF ORLANDO TO THE TAMPA BAY AREA AND CONTINUED OUT OVER THE EAST GULF WATERS...SOUTHWESTWARD TO OVER 100 MILES OFFSHORE FROM NAPLES. MOVEMENT WAS TO THE NORTHEAST AT 45 MILES AN HOUR. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADO DEVELOPMENT IN AND CLOSE TO THE WATCH AREA. RESIDENTS IN AND NEAR THE WATCH AREA ARE URGED TO TAKE IMMEDIATE PRECAUTIONS IN CASE DAMAGING WEATHER OCCURS IN YOUR AREA. BE READY TO SEEK SAFE SHELTER IN AN INTERIOR ROOM OF A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH.
Special weather statement, Mar 3, 9:46 AM EST, 1 hour 6 minutes before
FLZ006-009>022-031540- SPECIAL WEATHER AND MARINE WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 935 AM EST SUN MAR 03 1991 ...A TORNADO WATCH IS IN EFFECT UNTIL SUNDAY MORNING AT 12 PM EST FOR PARTS OF NORTH...ALL OF CENTRAL...SOUTH CENTRAL FLORIDA... ...A MARINE WARNING IS IN EFFECT UNTIL 12 NOON FOR THE COASTAL WATERS FROM PINELLAS COUNTY SOUTH TO SARASOTA COUNTY... THIS STATEMENT IS FOR CITRUS...LEVY...SUMTER...HERNANDO...PASCO...POLK... HILLSBOROUGH...PINELLAS...MANATEE...SARASOTA...HARDEE...DESOTO...AND HIGHLANDS COUNTIES... AT 930 AM...RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS...FROM NORTHERN CITRUS COUNTY TO 50 MILES OFFSHORE FROM SARASOTA. THIS LINE OF THUNDERSTORMS AREA PART OF AN AREA OF SHOWERS AND THUNDERSTORMS...THAT WAS OVER NORTH AND WEST CENTRAL PART OF THE STATE AND THE EAST GULF WATERS. THE AREA WAS 100 MILES WIDE AND THE LEADING EDGE OF THE AREA WAS FROM WEST OF DAYTON BEACH TO WEST OF ORLANDO TO THE TAMPA BAY AREA AND CONTINUED OUT OVER THE EAST GULF WATERS...SOUTHWESTWARD TO OVER 100 MILES OFFSHORE FROM NAPLES. MOVEMENT WAS TO THE NORTHEAST AT 45 MILES AN HOUR. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADO DEVELOPMENT IN AND CLOSE TO THE WATCH AREA. RESIDENTS IN AND NEAR THE WATCH AREA ARE URGED TO TAKE IMMEDIATE PRECAUTIONS IN CASE DAMAGING WEATHER OCCURS IN YOUR AREA. BE READY TO SEEK SAFE SHELTER IN AN INTERIOR ROOM OF A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH.
Special weather statement, Mar 3, 10:36 AM EST, 16 minutes before
FLZ006-009>022-031640- SPECIAL WEATHER AND MARINE WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 1035 AM EST SUN MAR 03 1991 ...A TORNADO WATCH IS IN EFFECT UNTIL SUNDAY MORNING AT 12 PM EST FOR PARTS OF NORTH...ALL OF CENTRAL...SOUTH CENTRAL FLORIDA... ...A MARINE WARNING IS IN EFFECT UNTIL 12 NOON FOR THE COASTAL WATERS FROM PINELLAS COUNTY SOUTH TO SARASOTA COUNTY... THIS STATEMENT IS FOR CITRUS...LEVY...SUMTER...HERNANDO...PASCO...POLK... HILLSBOROUGH...PINELLAS...MANATEE...SARASOTA...HARDEE...DESOTO...AND HIGHLANDS COUNTIES... AT 1030 AM...AN AREA OF SHOWERS AND STRONG THUNDERSTORMS...SOME WITH HEAVY RAINFALL WERE OVER THE NORTHERN AND CENTRAL PORTIONS OF THE STATE AND THE EAST GULF WATERS. SOME OF THE STRONG THUNDERSTORMS WERE OVER NORTHERN HILLSBOROUGH COUNTY...OVER THE TAMPA BAY...NORTHWEST OF DADE CITY IN PASCO COUNTY AND ALSO 30 MILES OFFSHORE FROM SARASOTA. THE AREA WAS FROM NEAR ST. AUGUSTINE TO SOUTH OF DAYTONA BEACHSOUTHWEST ACROSS THE STATE TO SARASOTA THEN ALONG THE WEST COAST TO NORTH OF NEW PORT RICHEY. THE AREA EXTENDS OUT OVER THE GULF WATERS 50 TO OVER 100 MILES OFFSHORE NEW PORT RICHEY TO CAPE ROMANO. MOVEMENT WAS TO THE NORTHEAST AT 45 MILES AN HOUR. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADO DEVELOPMENT IN AND CLOSE TO THE WATCH AREA. RESIDENTS IN AND NEAR THE WATCH AREA ARE URGED TO TAKE IMMEDIATE PRECAUTIONS IN CASE DAMAGING WEATHFER OCCURS IN YOUR AREA. BE READY TO SEEK SAFE SHELTER IN AN INTERIOR ROOM OF A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH.
Local storm report, Mar 3, 10:45 AM EST, 7 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
1045 AM EST SUN MAR 03 1991
03/03/91 0800 EST PINELLAS COUNTY, PALM HARBOR
FREQUENT LIGHTNING, STRONG WINDS, HEAVY RAIN
WIND DAMAGE
PRIVATE CITIZEN
MIASVRTBW 031243-031445
03/03/91 0850 EST HERNANDO COUNTY, BAYPORT
DAMAGING WINDS FREQUENT RAIN AND LIGHTNING
PRIVATE CITIZEN
MIASVTBW 031243 - 031445
03/03/91 0920 EST CITRUS COUNTY, US41 NEAR COUNTY LINE
POSSIBLE TORNADO... SEVERAL TREES DOWN
CITRUS COUNTY SHERIFFS OFFICE
MIASVRTBW 031418 - 031615
03/03/91 0934 EST PASCO COUNTY, NEW PORT RICHEY
WIND DAMAGE
2 HOUSES DAMAGED.. ROOF BLOWN OFF OF ONE
T PASCO COUNTY DIV. OF EMERG. MANAGEMENT
MIASVRTBW 031243 - 031615ZThe office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 3, 7:40 AM EST | Severe Thunderstorm Warning | TBW | Pasco, Pinellas | 2 hr |
| Mar 3, 8:51 AM EST | Severe Thunderstorm Warning | TBW | Hernando, Pasco | 69 min |
| Mar 3, 9:15 AM EST | Severe Thunderstorm Warning | TBW | Hernando, Hillsborough, Pasco, Pinellas, Sumter | 2 hr |
| Mar 3, 9:15 AM EST | Severe Thunderstorm Warning | TBW | Citrus | 2 hr |
| Mar 3, 9:51 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Manatee, Polk | 69 min |
| Mar 3, 10:21 AM EST | Severe Thunderstorm Warning | TBW | Sarasota | 39 min |
| Mar 3, 10:21 AM EST | Severe Thunderstorm Warning | TBW | Hardee | 39 min |
| Mar 3, 10:52 AM EST | Severe Thunderstorm Warning | TBW | Charlotte, Sarasota | 68 min |
| Mar 3, 10:52 AM EST | Severe Thunderstorm Warning | TBW | Lee | 68 min |
| Mar 3, 12:01 PM EST | Severe Thunderstorm Warning | TBW | Charlotte, DeSoto, Highlands, Lee | 59 min |
| Mar 3, 12:01 PM EST | Severe Thunderstorm Warning | TBW | Hardee, Polk | 59 min |
| Mar 3, 1:00 PM EST | Severe Thunderstorm Warning | TBW | Charlotte, Highlands | 60 min |
| Mar 3, 1:00 PM EST | Severe Thunderstorm Warning | TBW | Lee | 60 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1991Every severe thunderstorm warning in 1991
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.