Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 51, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Aug 30, 1990, 4:22 PM EDT for Brevard County, Florida. It was in force for 68 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 30, 1990, 4:22 PM EDT (20:22 UTC)
- Expired
- Aug 30, 1990, 5:30 PM EDT
- In force
- 68 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Brevard County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 30, 4:30 PM EDT | Thunderstorm Wind 0 | Brevard, FL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 8.4 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
- 1973 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1151 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 53 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 302026 SVRMLB FLC009-302130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 422 PM EDT THU AUG 30 1990 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...NORTHERN BREVARD COUNTY AND FOR MARINE INTERESTS ON THE COASTAL WATERS FROM... ...MOSQUITO LAGOON TO COCOA BEACH AT 425 PM THERE WERE STRONG THUNDERSTORMS JUST NORTH OF THE KENNEDY SPACE CENTER IN NORTH BREVARD COUNTY. THESE STORMS HAVE PRODUCED WINDS TO 60 MPH ALONG THE COAST OF VOLUSIA COUNTY. THEY WERE MOVING SOUTH AT 10 MPH AND WILL MOVE THROUGH NORTH BREAVRD AND THE ADJACENT COASTAL WATERS BY 530 PM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTE+CTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, 1:48 PM EDT, 2 hours 34 minutes before
FLZ012-220200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 145 PM EDT THU AUG 30 1990 THUNDERSTORMS WITH VERY HEAVY RAINFALL DEVELOPED RAPIDY DORING THE LAST HOUR ACROSS FLAGLER COUNTY FROM JUST SOUTHEAST OF PALATKA EAST THROUGH FLAGLER BEACH INTO THE ATLANTIC. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 10 MPH AND WILL MOVE INTO THE COASTAL WATERS OF FLAGLER AND NORTH VOLUSIA COUNTIES DURING THE NEXT 2 HOURS. BOATERBS OVER THE COASTAL WATERS CAN EXPECT STRONG WINDS AND ROUGH SEAS AND SHOULD TRY TO AVOID THESE STORMS AS THE MOVE INTO THEIR VICNITY.
Special weather statement, Aug 30, 2:47 PM EDT, 1 hour 35 minutes before
FLZ011-017-302045 SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 245 PM EDT THU AUG 30 1990 AT 240 PM EDT A NEARLY SOLID LINE OF STRONG THUNDERSTORMS STRETCHED FROM JUST NORTH OF DAYTONA BEACH TO LAKE GEORGE AND THEN TO NEAR CITRA IN NORTH CENTRAL MARION COUNTY. THESE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS... HEAVY RAIN... NUMEROUS CLOUD TO GROUND LIGHTNING STRIKES AND POSSIBLE SMALL HAIL. BETWEEN 245 AND 445 PM THESE STORMS WILL MOVE INTO AND THROUGH NORTHERN LAKE COUNTY AND APPROACH SEMINOLE... BREVARD AND ORANGE COUNTIES. ELSEWHERE ACROSS EAST CENTRAL FLORIDA.. ONLY CENTRAL AND SOUTHERN LAKE COUNTY WILL HAVE WIDELY SCATTERED SHOWERS AND THUNDERSTORMS. ALL PERSONS ACROSS EAST CENTRAL FLORIDA ARE ADVISED TO KEEP ABREAST OF THE LATEST ADVISORIES AND KEEP AN EYE TO THE SKY FOR QUICKLY DETERIORATING WEATHER CONDITIONS.
Special weather statement, Aug 30, 2:54 PM EDT, 1 hour 28 minutes before
FLZ009-302000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTONA BEACH FL 253 PM EDT THU AUG 30 1990 A CLUSTER OF STRONG THUNDERSTORMS IS MOVING INTO NORHEAST MARION COUNTY. REPORTS OF HAIL UP TO 1/2 INCH WAS REPORTED AT 240PM IN THE NORTHEAST PORTION OF THE COUNTY ALONG WITH VERY HEAVY RAIN.. GUSTY WINDS AND FREQUENT LIGHTNING. THE THUNDERSTORMS ARE MOVING SOUTH AT 10 MPH. DURING THE NEXT HOUR RESIDENTS OF MARION COUNTY SHOULD BE ON THE ALERT FOR STRONG THUNDERSTORMS CONDITIONS.
Local storm report, Aug 30, 3:45 PM EDT, 37 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
340 PM EDT THU AUG 30 1990
200 PM EDT... CD OFFICE FLAGLER COUNTY..WIND 60 MPH SOUTH END OF COUNTY
ALONG THE BEACH. POWERLINES DOWN AND SMALL HAIL.
245 PM EDT... LIFEGUARD STATION VOLUSIA COUNTY..WIND ESTIMATED 60 MPH
AND SMALL HAIL ON BEACH AT ORMOND BEACH. 300 POUND LIFEGUARD
TOWERS ALL BLOWN OVER.Special weather statement, Aug 30, 3:52 PM EDT, 30 minutes before
FLZ009-011-012-017-310200 SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 345 PM EDT THU AUG 30 1990 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT FOR MUCH OF EAST CENTRAL FLORIDA INCLUDING MARION... FLAGLER... VOLUSIA... LAKE... SEMINOLE... ORANGE... BREVARD AND OSCEOLA COUNTIES... THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF EAST CENTRAL FLORIDA UNTIL 1000 PM EDT. PLEASE REMEMBER A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE FORMATION OF SEVERE THUNDERSTORMS. ALSO A SEVERE THUNDERSTORMS WATCH INDICATES THAT WINDS IN EXCESS OF 58 MPH AND HAIL IN EXCESS OF THREE QUARTERS OF AN INCH ARE POSSIBLE. AT 345 PM A BROKEN LINE OF STRONG THUNDERSTORMS WAS FROM NEW SMYRNA BEACH TO DELAND TO ASTOR PARK AND THEN TO NEAR OCALA. OTHER STRONG THUNDERSTORMS WERE JUST NORTH OF DAYTONA BEACH. BETWEEN 345 AND 545 PM... THESE STORMS WILL CONTINUE TO MOVE SOUTH AND REDEVELOP. THESE STORMS WILL MOVE ACROOS OR INTO VOLUSIA... LAKE... SEMINOLE... AND NORTH BREVARD DURING THIS TIME. WE URGE EVERYONE IN EAST CENTRAL FLORIDA TO STAY ABREAST OF THE LATEST DEVELOPMENT WITH RESPECT TO THESE STORMS.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 1:57 PM EDT | Severe Thunderstorm Warning | MLB | Flagler | 63 min |
| Aug 30, 2:15 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 60 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.