Alert archive / Florida / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 8, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 12, 1987, 4:11 PM EDT for Brevard County, Volusia County, Florida. It was in force for 49 min.
The area
The counties it named.
The facts
- Issued
- Jul 12, 1987, 4:11 PM EDT (20:11 UTC)
- Expired
- Jul 12, 1987, 5:00 PM EDT
- In force
- 49 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
Counties Brevard County, FL, Volusia 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, 8.2 hours before the alert went out and 181 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 2 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 KDAB 122011 SVRDAB FLC127-009-122100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE DAYTONA BEACH FL 411 PM EDT SUN JUL 12 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL FLORIDA...SOUTHEAST VOLUSIA AND NORTHEAST BREVARD ...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE COUNTIES JUST MENTIONED AT 405 PM EDT RADAR INDICATED SEVERE THUNDERSTORMS OVER SOUTHEAST VOLUSIA COUNTY JUST WEST OF OAK HILL AND ALONG AND JUST OFFSHORE THE CANAVERAL NATIONAL SEAHSORE PARK BETWEEN NEW SMYRNA BEACH AND PORT CANAVERAL. IF YOU ARE IN OR NEAR THE WARNED AREA GET TO A REINFORCED SHELTER AND PREPARE FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN AND DANGEROUS LIGHTNING. THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY !
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, Jul 12, 3:49 PM EDT, 22 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 331PM EDT SUN JUL 12 1987 VERY STRONG AFTERNOON THUNDERSTORMS FORMING INLAND ARE MOVING TOWARD THE BEACHES OF FLAGLER AND VOLUSIA COUNTIES OF NORTHEAST FLORIDA. SCATTERED VERY HEAVY THUNDERSTORMS WITH VERY HEAVY RAINS WERE OCCURRING FOR THE MOST PART OVER THE EAST HALF OF THE FLORIDA PENINSULA FROM THE MATANZAS INLET INLAND TO BETWEEN GAINESVILLE AND OCALA AND EXTENDED SOUTH TO VERO BEACH AND LAKE KISSIMMEE. THE HEAVIEST CONCENTRATION OF THUNDERSTORMS WAS LOCATED ACROSS VOLUSIA COUNTY FROM THE CANAVERAL NATIONAL SEASHORE PARK TO THE NORTHWEST CORNER OF THE COUNTY NEAR LAKE GEORGE. THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAINFALL AMOUNTS AND MAKE DRIVING CONDITIONS VERY DANGEROUS AND WITH THE HIGH NUMBER OF MOTORISTS HEADING HOME FROM AREA BEACHES...MOTORISTS SHOULD BE ESPECIALLY ALERT AND CAREFULL. ADDITIONALLY...THESE THUNDERSTORMS WILL PROuDUCE FREQUENT DANGEROUS LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY SMALL HAIL. THE THUNDERSTORMS WERE MOVING TOWARD THE EAST AT 15 MPH.
Nearby
Severe Thunderstorm Warnings in Florida, 1987Every severe thunderstorm warning in 1987
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.