Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 78, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Aug 8, 2012, 4:11 PM EDT for Volusia County, Florida. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2012, 4:11 PM EDT (20:11 UTC)
- Expired
- Aug 8, 2012, 4:45 PM EDT
- In force
- 34 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
County Volusia County, FL
The radar
The Jacksonville radar (KJAX), 141 km from the middle of the area, began a volume at 20:12 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.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 8.2 hours before the alert went out and 112 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
- 89 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 1314 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
131
WUUS52 KMLB 082011
SVRMLB
FLC127-082115-
/O.NEW.KMLB.SV.W.0078.120808T2011Z-120808T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
411 PM EDT WED AUG 8 2012
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL VOLUSIA COUNTY IN FLORIDA
* UNTIL 515 PM EDT.
* AT 406 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
DAYTONA INTERNATIONAL SPEEDWAY...OR 6 MILES WEST OF HOLLY HILL...
AND MOVING NORTHEAST AT 15 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
SOUTH DAYTONA...WILBUR BY THE SEA...DAYTONA BEACH...ORMOND BEACH
AND ORMOND BY THE SEA
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 2941 8108 2913 8095 2909 8119 2927 8126
2927 8116 2941 8116 2943 8114 2943 8110
TIME...MOT...LOC 2010Z 228DEG 18KT 2923 8112
$$1 follow-up statement
811
WWUS52 KMLB 082045
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
445 PM EDT WED AUG 8 2012
FLC127-082052-
/O.CAN.KMLB.SV.W.0078.000000T0000Z-120808T2115Z/
VOLUSIA-
445 PM EDT WED AUG 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL VOLUSIA COUNTY
IS CANCELLED...
THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND MOVED
OUT OVER THE COASTAL WATERS THUS THE WARNING HAS BEEN CANCELLED. A
SPECIAL MARINE WARNING REMAINS IN EFFECT THE COASTAL WATERS FOR WIND
GUSTS UP TO 50 MPH. OTHER STORMS WITH FREQUENT LIGHTNING AND GUSTY
WINDS TO 45 MPH WILL MOVE BACK INTO NORTHEAST VOLUSIA COUNTY FROM
THE WEST.
LAT...LON 2941 8108 2913 8095 2909 8119 2927 8126
2927 8116 2941 8116 2943 8114 2943 8110
TIME...MOT...LOC 2042Z 228DEG 18KT 2934 8098
$$The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 4:08 PM EDT | Special Weather Statement | MLB | Volusia | 37 min |
| Aug 8, 4:21 PM EDT | Special Marine Warning | MLB | 114 min | |
| Aug 8, 5:07 PM EDT | Special Weather Statement | MLB | Volusia | 53 min |
| Aug 8, 5:17 PM EDT | Special Weather Statement | MLB | Orange | 58 min |
| Aug 8, 5:22 PM EDT | Special Marine Warning | MLB | 95 min | |
| Aug 8, 5:30 PM EDT | Special Weather Statement | MLB | Volusia | 45 min |
| Aug 8, 6:22 PM EDT | Special Weather Statement | MLB | Orange, Seminole | 53 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.