Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 20, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 1, 1990, 5:38 PM EDT for Indian River County, Florida. It was in force for 37 min.
The area
The counties it named.
The facts
- Issued
- Jul 1, 1990, 5:38 PM EDT (21:38 UTC)
- Expired
- Jul 1, 1990, 6:15 PM EDT
- In force
- 37 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Indian River 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, 9.6 hours before the alert went out and 86 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
- 1652 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 74 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 KMLB 012141 SVRMLB FLC061-012215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 538 PM EDT SUN JUL 1 1990 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...INDIAN RIVER COUNTY AT 535 PMEDT NATIONAL WEATHER SERVICE WEATHER RADAR INDICATED A SEVERE THUNDERSTORMS OVER WESTERN INDIAN RIVER COUNTY...WEST OF VERO BEACH. STRONG WINDS WERE REPORTED BY THE PUBLIC ASSOCIATED WITH THIS THUNDERSTORM. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 58 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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 1, 3:19 PM EDT, 2 hours 19 minutes before
FLZ012-012015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 317 PM EDT SUN JUL 1 1990 SEVERAL LARGE THUNDERSTORMS HAVE DEVELOPED OVER THE EASTERN HALF OVER VOLUSIA COUNTYY..MAINLY ON THE COASTLINE FROM DAYTONA BEACH SOUTHWARD ALONG THE VOLUSIA COUNTY BEACHES TO NEAR OAK HILL AND EDGE WATER. THESE THUNDERSTORMS ARE LIKELY TO PRODUCE DANGEROUS LIGHTNING STRIKES ..VERY HEAVY RAIN..STRONG GUSTY WINDS AND SOME HAIL. # THEY APPEAR TO BE MOVING SOUTHEAST.
Special weather statement, Jul 1, 3:41 PM EDT, 1 hour 57 minutes before
FLZ011-011-017-012040- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 340 PM EDT SUN JUL 1 1990 ...THUNDERSTORMS INTENSIFYING OVER EAST CENTRAL FLORIDA... AT 335 PM THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM DAYTONA TO TITUSVILLE TO BETWEEN COCOA AND MELBOURNE. OTHER STRONG THUNDERSTORMS EXTENDED FROM NEAR SANFORD ACROSS THE OCALA NATIONAL FOREST AND SOUTHWARD INTO LAKE COUNTY AROUND LEESBURG AND MASCOTTE. FREQUENT LIGHTNING WAS INDICATED IN SOME OF THE THUNDERSTORMS AND STRONG GUSTY WINDS AREA ALSO POSSIBLE. PEOPLE NEAR THESE THUNDERSTORMS SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS FOR THE NEXT SEVERAL HOURS. MOVEMENT WAS SLOWLY SOUTHEAST. BETWEEN 340 PM AND 440 PM...THUNDERSTORMS ARE LIKELY TO INCREASE IN COVERAGE ALONG THE EAST COAST FROM DAYTONA TO MELBOURNE. THUNDERSTORMS WILL CONTINUE TO PUSH SOUTHWARD OVER INTERIOR SECTIONS AND COULD MOVE INTO NORTHERN PARTS OF THE /ORLANDO AREA IN THE NEXT HOUR.
Special weather statement, Jul 1, 4:53 PM EDT, 45 minutes before
FLZ011-016-017-012040-
SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
450 PM EDT SUN JUL 1 1990
...THUNDERSTORMS INTENSIFYING OVER EAST CENTRAL FLORIDA...
AT 445 PM THUNDERSTORMS ...SOME WITH VERY HEAVY RAIN COVERED MANY AREAS ACROSS
EAST CENTRAL FLORIDA. MOST OF THIS PRECIPITATION EXTENDED FROM LAKE COUNTY
EAST TO VOLUSIA COUNTY AND SOUTH ACROSS EASTERN ORANGE COUNTY THROUGH BREVARD
COUNTY AND INTO INDIAN RIVER COUNTY. THE HEAVIEST THUNDERSTORM IN THIS AREA
WAS JUST WEST OF COCOA NEAR THE ORANGE-BREVARD COUNTY LINE. OTHER HEAVY
THUNDERSTORMS WERE IN THE MT. DORA AREA OF LAKE COUNTY. THESE THUNDERSTORMS
WERE DRIFTING TO THE SOUTHEAST AROUND 10 MILES AN HOUR.
OVER THE NEXT TWO HOURS THESE THUNDERSTORMS WILL CONTINUE TO PUSH TO THE
SOUTHEAST. THUNDERSTORMS WILL ALSO CONTINUE TO DEVELOP ALONG THE SEABREEZE
FRONT THAT WILL PUSH INLAND FROM VOLUSIA...BREVARD AND INDIAN RIVER COUNTIES
INTO ORANGE AN{D OSCEOLA COUNTIES.
STRONG WINDS AND DANGEROUS LIGHTNING WILL BE POSSIBLE FROM THESE
THUNDERSTORMS.Special weather statement, Jul 1, 4:55 PM EDT, 43 minutes before
FLZ011-016-017-012040- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 450 PM EDT SUN JUL 1 1990 ...THUNDERSTORMS INTENSIFYING OVER EAST CENTRAL FLORIDA... AT 445 PM THUNDERSTORMS ...SOME WITH VERY HEAVY RAIN COVERED MANY AREAS ACROSS EAST CENTRAL FLORIDA. MOST OF THIS PRECIPITATION EXTENDED FROM LAKE COUNTY EAST TO VOLUSIA COUNTY AND SOUTH ACROSS EASTERN ORANGE COUNTY THROUGH BREVARD COUNTY AND INTO INDIAN RIVER COUNTY. THE HEAVIEST THUNDERSTORM IN THIS AREA WAS JUST WEST OF COCOA NEAR THE ORANGE-BREVARD COUNTY LINE. OTHER HEAVY THUNDERSTORMS WERE IN THE MT. DORA AREA OF LAKE COUNTY. THESE THUNDERSTORMS WERE DRIFTING TO THE SOUTHEAST AROUND 10 MILES AN HOUR. OVER THE NEXT TWO HOURS THESE THUNDERSTORMS WILL CONTINUE TO PUSH TO THE SOUTHEAST. THUNDERSTORMS WILL ALSO CONTINUE TO DEVELOP ALONG THE SEABREEZE FRONT THAT WILL PUSH INLAND FROM VOLUSIA...BREVARD AND INDIAN RIVER COUNTIES INTO ORANGE AN}D OSCEOLA COUNTIES. STRONG WINDS AND DANGEROUS LIGHTNING WILL BE POSSIBLE FROM THESE THUNDERSTORMS.
Special weather statement, Jul 1, 5:19 PM EDT, 19 minutes before
FLZ012-012200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 520 PM EDT SUN JUL 1 1990 VERY STRONG THUNDERSTORMS ARE DEVELOPING OVER SOUTHEAST FLAGLER COUNTY FROM THE VICINITY OF FLAGLER BEACH TO THE VOLUSIA COUNTY LINE... THE THUNDERSTORMS EXTENDED FROM AROUND I-95 TO NEAR THE COAST AND BEING IN A DEVELOPMENTAL STAGE...SHOWED LITTLE MOVEMENT. THESE THUNDERSTORMS ARE LIKELY TO PRODUCE STRONG GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING STRIKES...POSSIBLY SMALL HAIL AND VERY HEAVY RAINFALL AMOUNTS. RESIDENTS...MOTORISTS...AND BOATERS IN THE AREA ARE ADVISED TO BE ON THE LOOKOUT FOR THE APPROACH OF THESE THUNDERSTORMS AND BE PREPARED TO TAKE NECESSARY PRECAUTIONARY MEASURES.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 6:02 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 58 min |
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.