Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 72, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 30, 1990, 6:55 PM EDT for Citrus County, Florida. It was in force for 50 min.
The area
The counties it named.
The facts
- Issued
- Aug 30, 1990, 6:55 PM EDT (22:55 UTC)
- Expired
- Aug 30, 1990, 7:45 PM EDT
- In force
- 50 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Citrus County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 10.9 hours before the alert went out and 128 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
- 2896 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 728 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 43 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 302257 SVRTBW FLC017-302345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 655 PM EDT THU AUG 30 1990 THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 745 PM EDT FOR PEOPLE... IN WEST CENTRAL FLORIDA ...CITRUS COUNTY AND FOR THE COASTAL WATERS OF ...CITRUS COUNTY A SEVERE THUNDERSTORM WAS DETECTED BY RADAR NEAR HOLDER MOVING TO THE SOUTHWEST AT 10 MPH TOWARD CRYSTALL RIVER. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. CARS ALND MOBILE HOMES ARE NOT SAFE. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM MOVE TO A REINFORCED BUILDING. MARINE INTERESTS AND SMALL CRAFT OPERATORS IN THE COASTAL WATERS SHOULD SEEK SAFE HARBOR WITH THE APPROACH OF THIS THUNDERSTORM.
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, Aug 30, 2:44 PM EDT, 4 hours 11 minutes before
FLZ013-301930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 242 PM EDT THU AUG 30 1990 THIS STATEMENT FOR HILLSBOROUGH AND PASCO COUNTIES OF WEST CENTRAL FLORIDA. STRONG SUMMER THUNDERSTORMS HAVE DEVELOPED OVER NORTHERN HILLSBOROUGH COUNTY...INCLUDING MUCH OF URBAN TAMPA...AND OVER PORTIONS OF CENTRAL AND EASTERN PASCO COUNTY. THESE THUNDERSTORMS ARE PRODUCING FREQUENT LIFE THREATENING LIGHTNING...GUSTY WINDS...AND LOCALIZED DOWNPOURS OF RAIN WHICH WILL LIKELY CAUSE SOME MINOR STREET OR POOR DRAINAGE AREA FLOODING. MOTORIS ARE ADVISED TO EXERCISE CAUTION IN AREAS OF POOR VISIBILITY IN HEAVY RAIN...AND BE CAUTIOUS WHEN APPROACHING AREAS OF PONDING WATER. THOSE CAUGHT OUTDOORS SHOULD GIVE LIGHTNING GREAT RESPECT AND SEEK ROOFED SHELTER UNTIL THE THREAT OF LIGHTNING DIMINISHES. THESE THUNDERSTORMS ARE SHOWING ONLY A SLOW SOUTHEASTWARD MOVEMENT AROUND 10 MPH
Special weather statement, Aug 30, 3:55 PM EDT, 3 hours before
FLC017-053-075-119-310150- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 350 PM EDT THU AUG 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT FOR MOST OF NORTHERN AND PART OF CENTRAL FLORIDA INCLUDING THE COUNTIES OF LEVY... SUMTER... CITRUS... AND HERNANDO... AND THE GULF COASTAL WATERS NORTH OF BAYPORT. MARINERS... RESIDENTS... MOTORISTS... PILOTS... AND ANYONE ELSE CONDUCTING OUTDOOR ACTIVITIES IN THESE COUNTIES AND WATERS...OR HEADING INTO NORTHERN FLORIDA SHOULD BE ALERT FOR LARGE HAIL... DEADLY LIGHTNING... DAMAGING THUNDERSTORM WINDS... AND POSSIBLE TORNADOES AND WATERSPOUTS. REMEBER A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THIS AREA. RADAR DOES NOT CURRENTLY INDICATE SEVERE WEATHER PRESENT BUT EVERYONE IN THIS ARE SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. IF YOU OBSERVE A TORNANDO... WATERSPOUT... HAIL... OR DAMAGING WINDS... TAKE COVER... AND IF POSSIBLE REPORT IT TO YOUR NEAREST LAW ENFORCEMENT AGENCY AND REQUEST THEY RELAY THIS INFORMATION TO THE NATIONAL WEATHER SERVICE.
Special weather statement, Aug 30, 4:42 PM EDT, 2 hours 13 minutes before
FLZ006-008>021-302140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 440 PM EDT THU AUG 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT FOR MOST OF NORTHERN AND PART OF CENTRAL FLORIDA INCLUDING THE COUNTIES OF LEVY... SUMTER... CITRUS... AND HERNANDO... AND THE GULF COASTAL WATERS NORTH OF BAYPORT. A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM UMATILLA TO TITUSVILLE. OTHER STRONG THUNDERSTORMS WERE NEAR GAINESVILLE AND OVER EASTERN LEVY...MANATEE AND SARASOTA COUNTIES. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE SOUTH OF A LINE FROM NEW PORT RICHEY TO MELBOURNE. MOVEMENT WAS SOUTH AT 10 MILES AN HOUR.CIONAL WEATHER SERVICE.
Special weather statement, Aug 30, 5:51 PM EDT, 1 hour 4 minutes before
FLZ006-008>021-302240- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 545 PM EDT THU AUG 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT FOR MOST OF NORTHERN AND PART OF CENTRAL FLORIDA INCLUDING THE COUNTIES OF LEVY... SUMTER... CITRUS... AND HERNANDO... AND THE GULF COASTAL WATERS NORTH OF BAYPORT. A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM EAST OF ORLANDO TO THE ATLANTIC COASTAL WATERS EAST OF CAPE CANAVERAL. OTHER STRONG THUNDERSTORMS WERE NEAR MYAKKA CITY AND BELLEVIEW. SHOWERS AND THUNDERSTORMS EMBEDDED IN RAIN COVERED MOST OF NORTH FLORIDA FROM TALAHASSE TO DAYTONA AND SOUTH TO COCOA. OTHER WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER THE SOUTHERN HALF OF THE PENINSULA SOUTH OF A TAMPA/MELBOURNE LINE. MOVEMENT WAS SOUTH AT 15 MILES AN HOUR OVER NORTH FLORIDA. LITTLE MOVEMENT WAS NOTED OVER CENTRAL AND SOUTH FLORIDA.
Special weather statement, Aug 30, 6:38 PM EDT, 17 minutes before
FLZ006-008>021-302340- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 635 PM EDT THU AUG 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT FOR MOST OF NORTHERN AND PART OF CENTRAL FLORIDA INCLUDING THE COUNTIES OF LEVY... SUMTER... CITRUS... AND HERNANDO... AND THE GULF COASTAL WATERS NORTH OF BAYPORT. A CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAINFALL EXTENDED FROM OCALA TO DUNNELLON AND INVERNESS. OTHER STRONG THUNDERSTORMS WERE JUST WEST OF MELBOURNE AND JUST NORTH OF LAKE OKEECHOBEE. OTHER SHOWERS AND THUNDERSTORMS EMBEDDED IN RAIN COVERED MOST OF NORTH FLORIDA FROM THE BIG BEND AREA TO DAYTONA AND SOUTH TO MELBOURNE. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER THE SOUTHERN HALF OF THE PENINSULA SOUTH OF A PALMETTO/MELBOURNE LINE. MOVEMENT WAS SOUTH AT 10 MILES AN HOUR OVER NORTH FLORIDA. LITTLE MOVEMENT WAS NOTED OVER CENTRAL AND SOUTH FLORIDA.
Nearby
Severe Thunderstorm Warnings in Florida, 1990Every severe thunderstorm warning in 1990
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.