Alert archive / Florida / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 7, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Mar 15, 1986, 8:38 AM EST for Flagler County, Volusia County, Florida. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Mar 15, 1986, 8:38 AM EST (13:38 UTC)
- Expired
- Mar 15, 1986, 9:30 AM EST
- In force
- 52 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
Counties Flagler 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
Cape Canaveral, FL (KXMR), launched 12:00Z, 1.6 hours before the alert went out and 113 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
- 725 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDAB 151338 SVRDAB FLC035-127-083-151430- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE DAYTONA BEACH FL 838 AM EST SAT MAR 15 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 930 AM EST FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL FLORIDA...FLAGLER...NORTHERN VOLUSIA AND EASTERN MARION ...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE COUNTIES JUST MENTIONED RADAR SPOTTED A SEVERE THUNDERSTORM OVER EASTERN MARION COUNTY NEAR THE OCALA FOREST. THE THUNDERSTORM WAS MOVING EAST 30 MPH. THIS THUNDERSTORM WILL LIKELY HAVE DAMAGING WINDS..LARGE HAIL AND DANGEROUS LIGHTNING. THE THUNDERSTORM WILL PASS OVER LAKE GEORGE. 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. REMEMBER)..THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING.
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 15, 7:54 AM EST, 44 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DAYTONA BEACH FL 740AM EST SAT MAR 15 1986 A TORNADO WATCH HAS BEEN PLACED IN EFFECT UNTIL 2 PM EST THIS AFTERNOON FOR MARION..VOLUSIA..FLAGLER..BREVARD..AND INDIAN RIVER COUNTIES AND INCLUDES THE ADJACENT COASTAL WATERS. THE WATCH IS ALSO IN FOR MOST OF THE REMAINING COUNTIES OF CENTRAL FLORIDA.. A LINE OF SEVERE THUNDERSTORMS EXTENDED ACROSS NORTHWEST FLORIDA FROM JUST NORTHEAST OF GAINESVILLE THROUGH OCALA TO THE WEST COAST NEAR CRYSTAL RIVER AND HOMOSASSA SPRINGS AND CONTINUED FOR SEVERAL MILES INTO THE GULF. VERY STRONG THUNDERSTORMS WERE ALSO OCCURRING ALONG THE EAST COAST BETWEEN FLAGLER BEACH AND ST AUGUSTINE. THESE THUNDERSTORMS ARE SEVERE AND ARE LIKELY TO PRODUCE STRONG DAMAGING WINDS..POSSIBLY DANGEROUS HAIL..AS WELL AS VERY HEAVY RANFALL AMOUNTS ENOUGH TO CAUSE RAPID FLOODING OF LOW LYING AREAS. IN ADDITION A TORNADO WATCH INDICATES CONDITIONS ARE FAVORABLE FOR THE DEVLOPMENT OF TORNADOES ALONG WITH THESE SEVERE THUNDERSTORMS. THE THUNDERSTORMS WERE MOVING EAST TO NORTHEAST AT 25 MPH. IF YOU ARE IN THE PATH OF THESE THUNDERSTORMS YOU SHOULD SEEK SAFE SHELTER IMMEDIATELY.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 8:38 AM EST | Severe Thunderstorm Warning | MLB | Marion | 52 min |
| Mar 15, 3:00 PM EST | Tornado Warning | MLB | Palm Beach | 30 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1986Every severe thunderstorm warning in 1986
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.