Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 81, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Aug 14, 2012, 5:40 PM EDT for Brevard County, Orange County, Florida. It was in force for 22 min. 1 report 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 14, 2012, 5:40 PM EDT (21:40 UTC)
- Expired
- Aug 14, 2012, 6:02 PM EDT
- In force
- 22 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Brevard County, FL, Orange County, FL
The radar
The Melbourne radar (KMLB), 37 km from the middle of the area, began a volume at 21:40 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 14, 5:50 PM EDT | TSTM WND GST 44 | 2 N Cocoa, FL | USAF 54 FT WIND TOWER NUMBER 1000 MEASURED A THUNDERSTORM WIND GUST OF 38 KT/44 MPH. |
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, 9.7 hours before the alert went out and 19 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
- 23 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 1369 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
856
WUUS52 KMLB 142140
SVRMLB
FLC009-095-142230-
/O.NEW.KMLB.SV.W.0081.120814T2140Z-120814T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
540 PM EDT TUE AUG 14 2012
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN BREVARD COUNTY IN FLORIDA
EAST CENTRAL ORANGE COUNTY IN FLORIDA
* UNTIL 630 PM EDT.
* AT 535 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER THE SAINT JOHNS
RIVER WEST OF TITUSVILLE AIRPORT...AND MOVING SOUTHEAST AT 15 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
PORT SAINT JOHN...CANAVERAL GROVES...SHARPES...PORT CANAVERAL...
MERRITT ISLAND...CAPE CANAVERAL...ROCKLEDGE AND COCOA.
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.
IF ON OR NEAR LAKES OR THE INTRACOASTAL WATERS...GET OUT OR OFF OF
THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING
CAN STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE
TO SAFE SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!
&&
LAT...LON 2838 8062 2840 8063 2840 8065 2835 8064
2825 8074 2849 8097 2862 8085 2858 8079
2854 8077 2854 8073 2849 8064 2841 8065
2843 8061 2847 8060 2844 8056
TIME...MOT...LOC 2139Z 311DEG 11KT 2851 8088
$$
KELLY1 follow-up statement
734
WWUS52 KMLB 142202
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
602 PM EDT TUE AUG 14 2012
FLC009-095-142210-
/O.CAN.KMLB.SV.W.0081.000000T0000Z-120814T2230Z/
ORANGE-BREVARD-
602 PM EDT TUE AUG 14 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN BREVARD AND EAST
CENTRAL ORANGE COUNTIES IS CANCELLED...
THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO
LONGER CAPABLE OF PRODUCING DAMAGING WINDS. AS A RESULT...THE
WARNING HAS BEEN CANCELLED. HOWEVER...HEAVY RAIN GUSTY WINDS AND
DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE. A WIND
GUST OF 44 MPH WAS RECORDED ON A US AIR FORCE WIND TOWER NEAR COCOA
AT 550 PM.
LAT...LON 2838 8062 2840 8063 2840 8065 2835 8064
2825 8074 2849 8097 2862 8085 2858 8079
2854 8077 2854 8073 2849 8064 2841 8065
2843 8061 2847 8060 2844 8056
TIME...MOT...LOC 2200Z 311DEG 11KT 2847 8082
$$
KELLYThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 9:32 PM EDT | Special Weather Statement | MLB | Flagler | 58 min |
| Aug 14, 3:48 PM EDT | Special Weather Statement | MLB | Volusia | 42 min |
| Aug 14, 4:00 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 34 min |
| Aug 14, 4:01 PM EDT | Special Weather Statement | MLB | Lake, Orange, Osceola, Seminole | 119 min |
| Aug 14, 4:24 PM EDT | Special Weather Statement | MLB | Orange | 51 min |
| Aug 14, 4:33 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Seminole, Volusia | 42 min |
| Aug 14, 4:56 PM EDT | Special Weather Statement | MLB | Orange, Seminole | 49 min |
| Aug 14, 5:11 PM EDT | Special Weather Statement | MLB | Seminole | 64 min |
| Aug 14, 5:20 PM EDT | Special Marine Warning | MLB | 64 min | |
| Aug 14, 5:51 PM EDT | Special Weather Statement | MLB | Osceola | 39 min |
| Aug 14, 6:17 PM EDT | Special Weather Statement | MLB | Osceola | 43 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.