Alert archive / Florida / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 7, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Apr 17, 1991, 3:17 PM EDT for Brevard County, Florida. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- Apr 17, 1991, 3:17 PM EDT (19:17 UTC)
- Expired
- Apr 17, 1991, 4:15 PM EDT
- In force
- 58 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Brevard County, FL
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 7.3 hours before the alert went out and 27 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
- 516 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 875 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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.
In the hours before
Special weather statement, Apr 17, 1:32 PM EDT, 1 hour 45 minutes before
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</html>Special weather statement, Apr 17, 1:34 PM EDT, 1 hour 43 minutes before
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</html>Special weather statement, Apr 17, 1:46 PM EDT, 1 hour 31 minutes before
FLZ017-011-016-012-009-171845- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 145 PM EDT WED APR 17 1991 AT 135 PM SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER MUCH OF EAST CENTRAL FLORIDA. THE STRONGEST STORMS WERE OVER CAPE CANAVERAL EXTENDING JUST OFFSHORE OF COCOA BEACH...NEAR DISNEY WORLD...OVER LAKE COUNTY FROM LEESBURG TO ASTOR PARK NORTH TO LAKE GEORGE...AND ON THE WESTERN FRINGES OF FLAGLER AND VOLUSIA COUNTIES. OTHER STRONG STORMS WERE OVER SOUTHERN OSCEOLA AND SOUTHERN BREVARD COUNTIES. THE STORMS WERE MOVING NORTHEAST AT 15 MPH. SOME OF THESE STORMS CAN PRODUCE VERY HEAVY DOWNPOURS...STRONG GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING...AND POSSIBLE SMALL HAIL. IF THREATENING WEATHER APPROACHES GO TO A PLACE OF SAFETY. BOATERS AND OTHER MARINE INTERESTS SHOULD BE ON THE LOOKOUT FOR THESE STORMS AS THEY MOVE OFFSHORE FROM FLAGLER BEACH TO SEBASTIAN INLET AND SEEK SAFE HARBOR. OVER THE NEXT TWO HOURS THUNDERSTORMS WILL CONTINUE OVER A GOOD PORTION OF EAST CENTRAL FLORIDA AND THE COASTAL WATERS FROM FLAGLER BEACH TO SEBASTIAN INLET. R.SMITH
Special weather statement, Apr 17, 1:49 PM EDT, 1 hour 28 minutes before
FLZ006>017-020-171900- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 145 PM EDT WED APR 17 1991 ...THIS IS A SPECIAL WEATHER STATEMENT FOR FLAGLER AND VOLUSIA COUNTIES AND THEIR ADJACENT COASTAL WATERS... NUMEROUS STRONG THUNDERSTORMS CAPABLE OF PRODUCING STRONG GUSTY WINDS... ...FREQUENT DANGEROUS LIGHTNING STRIKES...POSSIBLY SMALL HAIL...AND VERY HEAVY RAINFALL CONTINUE MOVING SLOWLY EAST ACROSS NORTHEAST FLORIDA. THE THUNDERSTORMS HAD MADE THEIR WAY INTO THE WESTERN AREAS OF FLAGLER AND VOLUSIA COUNTIES AND CAN BE EXPECTED TO REMAIN STRONG AS THEY MAKE THEIR WAY TO THE COASTAL AREAS. WINDS GUSTS IN EXCESS OF 30 MILES AND HOUR ARE LIKELY TO ACCOMPANY THESE THUNDERTORMS AS WELL AS NUMEROUS LIGHTNING STRIKES. RESIDENTS AND MARINERS ARE ADVISED TO BE PREPARED FOR THE APPROACH OF THESE THUNDERSTORMS AND BE PREPARED TO SEEK SAFE SHELTER IMMEDIATELY...KEEPING IN MIND LIGHTNING SAFETY TIPS. RADAR INDICATED NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDING FROM SOUTHEAST GEORGIA DOWN THE ST JOHNS RIVER TO AROUND DELAND. THE THUNDERSTORMS THEN BECAME WIDELY SCATTERD FROM AROUND ORLANDO SOUTHWARD TO THE PEACE RIVER. A SOLID AREA OF THUNDERSTORMS WAS ALSO ALONG THE EAST CENTRAL FLORIDA COAST FROM TITUSVILLE TO VERO BEACH. THUNDERSTORM MOVEMENT WAS EAST AT 10 TO 15 MPH.
Special weather statement, Apr 17, 2:12 PM EDT, 1 hour 5 minutes before
FLZ017-011-016-012-009-171915- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 211 PM EDT WED APR 17 1991 AT 210 PM A STRONG THUNDERSTORM WAS OVER ORANGE COUNTY JUST SOUTHWEST OF ORLANDO INTERNATIONAL AIRPORT. ONE HALF INCH HAIL HAS BEEN REPORTED SOUTH OF THE METROPOLITAN ORLANDO AREA WITH THIS STORM. THE STORM WAS MOVING NORTHEAST AT 15 MPH AND WILL MOVE THROUGH THE ORLANDO AREA WITHIN THE NEXT HOUR. ST2RONG WIND GUSTS...LARGE HAIL...AND FREQUENT DANGEROUS LIGHTNING CAN BE EXPECTED WITH THIS STORM. PERSONS IN ORANGE COUNTY FROM JUST EAST OF DISNEY THROUGH THE ORLANDO AREA SHOULD TAKE SAFE SHELTER AS THIS STORM MOVES THROUGH. R.SMITH
Special weather statement, Apr 17, 2:52 PM EDT, 25 minutes before
FLZ017-011-016-012-009-172000- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 251 PM EDT WED APR 17 1991 AT 240 PM SHOWERS AND THUNDERSTORMS CONTINUED OVER PARTS OF EAST CENTRAL FLORIDA. THE STRONGEST STORMS WERE OVER ORANGE COUNTY FROM NEA TO WINTER GARDEN EAST TO METROPOLITAN ORLANDO...OVER INDIAN RIVER COUNTY WEST OF FELLSMERE...AND OFFSHORE OUT 10 MILES FROM COCOA BEACH. WATER SPOUTS HAVE BEEN REPORTRD WITH THE STORM OFFSHORE OF COCOA...AND ONE HALF INCH HAIL WAS REPORTED SOUTH OF ORLANDO. WINDS ALSO GUSTED TO 53 MPH AT 222 PM AT THE ORLANDO INTERNATIONAL AIRPORT. OTHER STORMS WERE EXTENDED FROM BITHLO TO TITUSVILLE AND ANOTHER WAS NEAR MASCOTTE. STORMS WERE ALSO OVER WESTERN VOLUSIA AND MUCH OF FLAGLER COUNTY. THE STORMS WERE MOVING NORTHEAST AT 15 MPH. VERY HEAVY DOWNPOURS...STRONG GUSTY WINDS...HAIL...AND FREQUENT DANGEROUS LIGHTNING CAN BE EXPECTED WITH THESE STORMS. PERSONS SHOULD BE READY TO TAKE SAFE SHELTER IF THREATENING WEATHER APPROACHES. OVER THE NEXT TWO HOURS THUNDERSTORMS WILL CONTINUE OVER PARTS OF EAST CENTRAL FLORIDA...WITH THE STRONGEST ACTIVITY MOVING THROUGH ORANGE COUNTY... SOUTHERN BREVARD COUNTY...OFFSHpORE OF COCOA BEACH AND NEAR FLAGLER BEACH.. R.SMITH
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 5:26 PM EDT | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 2 hr |
| Apr 17, 7:25 PM EDT | Severe Thunderstorm Warning | MLB | Palm Beach | 65 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; the sounding from the Mesonet's radiosonde archive.