Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 7, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Apr 23, 1997, 12:27 PM EDT for Brevard County, Florida. It was in force for 58 min. 14 reports 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
- Apr 23, 1997, 12:27 PM EDT (16:27 UTC)
- Expired
- Apr 23, 1997, 1:25 PM EDT
- In force
- 58 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Brevard County, FL
The radar
The Melbourne radar (KMLB), 21 km from the middle of the area, began a volume at 16:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 23, 12:44 PM EDT | Thunderstorm Wind | Grant, FL | Thunderstorm winds blew down tree branches and power lines in Grant. |
| Apr 23, 12:44 PM EDT | Thunderstorm Wind | Grant, FL | Thunderstorm winds blew down tree branches and power lines in Grant. |
| Apr 23, 12:49 PM EDT | Thunderstorm Wind | Indialantic, FL | Thunderstorm winds blew down trees and damaged the roof of a school in Indiatlantic. |
| Apr 23, 12:49 PM EDT | Thunderstorm Wind | Indialantic, FL | Thunderstorm winds blew down trees and damaged the roof of a school in Indiatlantic. |
| Apr 23, 12:50 PM EDT | Thunderstorm Wind 55 | Melbourne, FL | Thunderstorms produced a wind gust to 66 mph at the Melbourne Regional Airport. |
| Apr 23, 12:50 PM EDT | Thunderstorm Wind 55 | Melbourne, FL | Thunderstorms produced a wind gust to 66 mph at the Melbourne Regional Airport. |
| Apr 23, 12:51 PM EDT | Thunderstorm Wind | Rockledge, FL | Power lines were blown down in Rockledge. |
| Apr 23, 12:51 PM EDT | Thunderstorm Wind | Rockledge, FL | Power lines were blown down in Rockledge. |
| Apr 23, 1:10 PM EDT | Thunderstorm Wind | Satellite Beach, FL | Thunderstorm wind blew down power lines and damaged the roof of a house. |
| Apr 23, 1:10 PM EDT | Thunderstorm Wind | Satellite Beach, FL | Thunderstorm wind blew down power lines and damaged the roof of a house. |
| Apr 23, 1:15 PM EDT | Thunderstorm Wind | Palm Bay, FL | Thunderstorm winds blew down trees in Melbourne and Palm Bay. |
| Apr 23, 1:15 PM EDT | Thunderstorm Wind | Palm Bay, FL | Thunderstorm winds blew down trees in Melbourne and Palm Bay. |
| Apr 23, 1:25 PM EDT | Thunderstorm Wind | Melbourne Beach, FL | Thunderstorm winds blew down power lines in South Melbourne Beach. |
| Apr 23, 1:25 PM EDT | Thunderstorm Wind | Melbourne Beach, FL | Thunderstorm winds blew down power lines in South Melbourne Beach. |
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 23, 8:00 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 23, 11:45 AM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 4.5 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
- 2247 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 587 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 9.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMLB 231627 RRA SVRMLB FLC009-231725- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 1227 PM EDT WED APR 23 1997 THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 125 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL FLORIDA ...BREVARD COUNTY AT 1225 PM...WEATHER RADAR AT MELBOURNE INDICATED A LINE OF STRONG TO SEVERE THUNDERSTORMS FROM CAPE CANAVERAL TO ST. CLOUD. ANOTHER STRONG STORM WAS RAPIDLY DEVELOPING OVER EXTREME SOUTHWEST BREVARD COUNTY. THESE STORMS WILL MOVE EAST AT 35 MPH AND CONTINUE TO INTENSIFY...AND WILL LIKELY PRODUCE DAMAGING WINDS AND LARGE HAIL ACROSS PORTIO*NS OF CENTRAL AND SOUTHERN BREVARD COUNTY. A TORNADO WATCH IS ALSO IN EFFECT FOR BREVARD COUNTY. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WILL LITTLE ADVANCE WARNING. MOVE TO A SAFE LOCATION IN ADVANCE OF THESE STORMS. SPRATT
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 8:40 AM EDT | Tornado Warning | MLB | Volusia | 45 min |
| Apr 23, 9:22 AM EDT | Tornado Warning | MLB | Volusia | 33 min |
| Apr 23, 9:43 AM EDT | Severe Thunderstorm Warning | MLB | Volusia | 62 min |
| Apr 23, 9:56 AM EDT | Severe Thunderstorm Warning | MLB | Lake | 94 min |
| Apr 23, 10:10 AM EDT | Tornado Warning | MLB | Volusia | 45 min |
| Apr 23, 10:17 AM EDT | Tornado Warning | MLB | Lake, Orange | 63 min |
| Apr 23, 10:29 AM EDT | Tornado Warning | MLB | Volusia | 66 min |
| Apr 23, 10:38 AM EDT | Tornado Warning | MLB | Seminole | 57 min |
| Apr 23, 11:10 AM EDT | Severe Thunderstorm Warning | MLB | Brevard | 60 min |
| Apr 23, 11:22 AM EDT | Severe Thunderstorm Warning | MLB | Orange, Seminole | 28 min |
| Apr 23, 11:44 AM EDT | Tornado Warning | MLB | Orange | 61 min |
| Apr 23, 11:52 AM EDT | Severe Thunderstorm Warning | MLB | Osceola | 63 min |
| Apr 23, 12:51 PM EDT | Severe Thunderstorm Warning | MLB | Indian River, Osceola | 64 min |
| Apr 23, 1:20 PM EDT | Tornado Warning | MLB | Indian River | 50 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1997Every severe thunderstorm warning in 1997
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; radar from the NEXRAD Level II archive.