Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 89, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Aug 21, 2012, 4:37 PM EDT for Brevard County, Florida. It was in force for 38 min. 8 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 21, 2012, 4:37 PM EDT (20:37 UTC)
- Expired
- Aug 21, 2012, 5:15 PM EDT
- In force
- 38 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
County Brevard County, FL
The radar
The Melbourne radar (KMLB), 10 km from the middle of the area, began a volume at 20:39 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 |
|---|---|---|---|
| Aug 21, 4:50 PM EDT | TSTM WND GST 63 | Nw Palm Bay, FL | MEASURED BY HANDHELD UNIT |
| Aug 21, 4:54 PM EDT | TSTM WND DMG | 2 Ssw Palm Bay, FL | LARGE TREE DOWN IN ROAD. CORNNER OF TROUTMAN BLVD. AND PORT MALABAR ROAD. |
| Aug 21, 5:00 PM EDT | TSTM WND DMG | E Melbourne, FL | RESIDENCE LOST ROOF IN 4100 BLOCK OF DUKE STREET |
| Aug 21, 5:00 PM EDT | TSTM WND DMG | Palm Bay, FL | MINTON ROAD AND CHANDLER STREET. MEASURED GUSTS 64 MPH. DEBRIS HIT POLICE CRUISER CAUSING DAMAGE. |
| Aug 21, 5:00 PM EDT | TSTM WND GST 78 | 5 Wnw Malabar, FL | STATION AR717 W4TEJ |
| Aug 21, 5:00 PM EDT | TSTM WND GST 78 | Palm Bay, FL | STATION AR717 W4TEJ |
| Aug 21, 5:01 PM EDT | TSTM WND DMG | Palm Bay, FL | RIVERA BLVD. ROOFS OFF OF SEVERAL CARPORTS AT MALABAR LAKES APTS. |
| Aug 21, 5:05 PM EDT | FUNNEL CLOUD | Patrick Airforce Base, FL | OFF DUTY USAF WEATHER OFFICER REPORTED FUNNEL CLOUD OVER THE PINEDA CAUSEWAY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 8.6 hours before the alert went out and 52 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
- 318 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1227 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
682
WUUS52 KMLB 212037
SVRMLB
FLC009-212115-
/O.NEW.KMLB.SV.W.0089.120821T2037Z-120821T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
437 PM EDT TUE AUG 21 2012
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN BREVARD COUNTY IN FLORIDA
* UNTIL 515 PM EDT.
* AT 434 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 7 MILES WEST OF PALM BAY...AND
MOVING NORTHEAST AT 30 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
MALABAR...CAMP HOLLY FISH CAMP...WEST MELBOURNE...MELBOURNE...
MELBOURNE BEACH...INDIALANTIC...INDIAN HARBOUR BEACH...SATELLITE
BEACH AND PATRICK AIRFORCE BASE
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.
&&
LAT...LON 2796 8052 2797 8053 2796 8053 2782 8080
2782 8081 2783 8081 2796 8087 2801 8087
2824 8065 2824 8064 2822 8063 2829 8060
2813 8057 2797 8050
TIME...MOT...LOC 2036Z 211DEG 30KT 2796 8076
$$
WEITLICH2 follow-up statements
417
WWUS52 KMLB 212047
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
447 PM EDT TUE AUG 21 2012
FLC009-212115-
/O.CON.KMLB.SV.W.0089.000000T0000Z-120821T2115Z/
BREVARD-
447 PM EDT TUE AUG 21 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHERN BREVARD COUNTY...
AT 443 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 80 MPH. THIS STORM WAS LOCATED NEAR PALM BAY...MOVING
NORTHEAST AT 30 MPH. TAKE COVER NOW DUE TO THIS DANGEROUS STORM!!
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CAMP
HOLLY FISH CAMP...MALABAR...VALKARIA...WEST MELBOURNE...MELBOURNE
VILLAGE...MELBOURNE AIRPORT...MELBOURNE...SPESSARD HOLLAND PARK...EAU
GALLIE...MELBOURNE BEACH...INDIALANTIC...PALM SHORES...INDIAN HARBOUR
BEACH...SATELLITE BEACH AND PATRICK AIRFORCE BASE
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 2796 8052 2797 8053 2796 8053 2782 8080
2782 8081 2783 8081 2796 8087 2801 8087
2824 8065 2824 8064 2822 8063 2829 8060
2813 8057 2797 8050
TIME...MOT...LOC 2046Z 220DEG 26KT 2801 8071
$$
WEITLICH860
WWUS52 KMLB 212058
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
458 PM EDT TUE AUG 21 2012
FLC009-212115-
/O.CON.KMLB.SV.W.0089.000000T0000Z-120821T2115Z/
BREVARD-
458 PM EDT TUE AUG 21 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHERN BREVARD COUNTY...
AT 453 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED NEAR WEST MELBOURNE...OR
NEAR PALM BAY...MOVING NORTHEAST AT 25 MPH. TAKE COVER NOW DUE TO
THIS DANGEROUS STORM!
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MELBOURNE...INDIALANTIC...SATELLITE BEACH...AND INDIAN HARBOUR BEACH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 2796 8052 2797 8053 2796 8053 2786 8072
2787 8072 2790 8073 2799 8078 2806 8082
2824 8065 2824 8064 2822 8063 2829 8060
2813 8057 2797 8050
TIME...MOT...LOC 2057Z 223DEG 21KT 2805 8066
$$
WEITLICHThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 11:28 PM EDT | Special Weather Statement | MLB | Orange | 47 min |
| Aug 21, 1:33 PM EDT | Special Weather Statement | MLB | Lake | 57 min |
| Aug 21, 2:39 PM EDT | Special Marine Warning | MLB | 66 min | |
| Aug 21, 2:53 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 37 min |
| Aug 21, 3:10 PM EDT | Special Marine Warning | MLB | 2 hr | |
| Aug 21, 3:12 PM EDT | Areal Flood Advisory | MLB | Lake | 93 min |
| Aug 21, 3:15 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Volusia | 45 min |
| Aug 21, 3:25 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Seminole, Volusia | 31 min |
| Aug 21, 3:37 PM EDT | Special Weather Statement | MLB | Brevard, Indian River, Lake, Martin, Okeechobee, Orange and 4 more | 53 min |
| Aug 21, 3:41 PM EDT | Special Marine Warning | MLB | 94 min | |
| Aug 21, 3:54 PM EDT | Areal Flood Advisory | MLB | Lake, Orange, Seminole, Volusia | 81 min |
| Aug 21, 4:24 PM EDT | Severe Thunderstorm Warning | MLB | Okeechobee | 45 min |
| Aug 21, 4:37 PM EDT | Special Weather Statement | MLB | Brevard, Indian River, Martin, Okeechobee, Osceola, Saint Lucie | 53 min |
| Aug 21, 4:49 PM EDT | Severe Thunderstorm Warning | MLB | Martin, Okeechobee, Saint Lucie | 34 min |
| Aug 21, 5:06 PM EDT | Special Marine Warning | MLB | 84 min | |
| Aug 21, 5:06 PM EDT | Severe Thunderstorm Warning | MLB | Indian River | 24 min |
| Aug 21, 5:08 PM EDT | Special Marine Warning | MLB | 82 min | |
| Aug 21, 5:12 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Osceola | 20 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.