Alert archive / Florida / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 46, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at May 8, 1999, 5:53 PM EDT for Indian River County, Florida. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 8, 1999, 5:53 PM EDT (21:53 UTC)
- Expired
- May 8, 1999, 6:55 PM EDT
- In force
- 62 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Indian River County, FL
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 9.9 hours before the alert went out and 180 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
- 912 J/kg
- Mixed-layer CIN
- -188 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
999
WUUS01 KMLB 082152 RRA
SVRMLB
FLC061-082255-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
553 PM EDT SAT MAY 8 1999
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN INDIAN RIVER COUNTY IN EAST CENTRAL FLORIDA
* UNTIL 655 PM EDT
* AT 550 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 2 MILES NORTH OF BLUE CYPRESS LAKE. MOVEMENT
WAS NEARLY STATIONARY.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
THE VICINITY NORTH OF BLUE CYPRESS LAKE THROUGH 610 PM
WITH FURTHER DEVELOPMENT POSSIBLE TOWARDS FELLSMERE.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN.
MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STRONG BUILDING.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.
NWS Melbourne, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 8, 2:00 PM EDT, 3 hours 53 minutes earlier.
Area forecast discussion, May 8, 2:00 PM EDT, 3 hours 53 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 200 PM EDT SAT MAY 8 1999 STORMS CURRENTLY DEVELOPING AND MOVING TOWARD E COAST. COVERAGE AND INTENSITY SHOULD INCREASE THROUGH LATE AFTERNOON AS EAST COAST SEA BREEZE GETS ESTABLISHED. TONIGHT...STORMS WILL LINGER INTO EVE HOURS BEFORE MOVING ACROSS EAST COAST. POPS WILL BE ADJUSTED BASED ON TRENDS LATER THIS AFTERNOON. SHOULD HAVE A LITTLE LATE NIGHT FOG AND STRATUS DEVELOP AND WILL WATCH FOR CIRRUS SHIELD MOVING EWD FROM TSTM COMPLEX IN GULF OF MEXICO. SUN...LIGHT WINDS AND TEMPERATURES IN THE UPPER 80S/AROUND 90 WILL ALLOW SEA BREEZE DEVELOPMENT BY EARLY AFTN. ONCE STORMS DEVELOP OVER THE INTERIOR COUNTIES...MID LEVEL STEERING FLOW WILL PUSH THEM EAST. CHANCE POPS...30-40 PERCENT...AFTERNOON AND EVENING. MON-THU...AVIATION DEVELOPS A 500MB TROUGH DOWN THE EASTERN SEABOARD EARLY MON WITH -14 C TEMPERATURES DOWN TO A CAPE-BKV LINE BY THAT TIME AS WELL. MEDIUM RANGE MODELS KEEP THE 500MB COLD POOL AND SURFACE HIGH PRESSURE OVER THE CWA THROUGH THU. COULD BE SETTING THE STAGE FOR SOME INTERESTING WEATHER NEXT WEEK. CHANCE POPS EACH DAY DUE TO SEA BREEZES INITIATING CONVECTION OVER THE INTERIOR. MARINE...SURFACE RIDGE BUILDS ACROSS COASTAL WATERS AND INTO THE GULF OF MEXICO THROUGH SUN...THEN INTO GA/AL THROUGH THU. WINDS GENERALLY FROM THE EAST AND SOUTHEAST AT 15 KT OR LESS UNTIL LATE THU WHEN MEDIUM RANGE MODELS DEVELOP AN INVERTED TROUGH OVER THE PENINSULA. PRELIM CCF NUMBERS... DAB BT 067/088 065/085 066 67343 MCO BT 066/090 065/086 065 67354 MLB BT 069/089 066/087 067 67344 .MLB...NONE. GLITTO/WIMMER
In the hours before
Local storm report, May 8, 5:15 PM EDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
515 PM EDT SAT MAY 08 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0450 PM CAPE CANAVERAL FL WIND DAMAGE
05/08/99 BREVARD 58 MPH WIND GUST. REPORTED
BY CAPE CANAVERAL
FORECASTER.Local storm report, May 8, 5:15 PM EDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
515 PM EDT SAT MAY 08 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0450 PM CAPE CANAVERAL FL WIND DAMAGE
05/08/99 BREVARD 58 MPH WIND GUST. REPORTED
BY CAPE CANAVERAL
FORECASTER.The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 8:01 PM EDT | Severe Thunderstorm Warning | MLB | Okeechobee | 64 min |
| May 8, 4:25 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 35 min |
| May 8, 5:34 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 61 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1999Every severe thunderstorm warning in 1999
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.