Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 52, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 10, 2012, 8:50 PM EDT for Lake County, Orange County, Osceola County, Florida. It was in force for 55 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
- Jun 10, 2012, 8:50 PM EDT (00:50 UTC)
- Expired
- Jun 10, 2012, 9:45 PM EDT
- In force
- 55 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Lake County, FL, Orange County, FL, Osceola County, FL
The radar
The Melbourne radar (KMLB), 98 km from the middle of the area, began a volume at 00:49 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
Tampa Bay, FL (KTBW), launched 00:00Z, 0.8 hours before the alert went out and 111 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
- 3486 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 950 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
449
WUUS52 KMLB 110050
SVRMLB
FLC069-095-097-110145-
/O.NEW.KMLB.SV.W.0052.120611T0050Z-120611T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
850 PM EDT SUN JUN 10 2012
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTH CENTRAL LAKE COUNTY IN FLORIDA
SOUTHWESTERN ORANGE COUNTY IN FLORIDA
NORTHWESTERN OSCEOLA COUNTY IN FLORIDA
* UNTIL 945 PM EDT.
* AT 845 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
LAKE LOUISA...OR 10 MILES WEST OF BAY LAKE...AND MOVING EAST AT 10
MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
CELEBRATION...WINDERMERE...UNIVERSAL STUDIOS...SEA WORLD...BAY
LAKE...PINE CASTLE...ORLOVISTA...ORLANDO...OAK RIDGE...LAKE BUENA
VISTA...KISSIMMEE...DOCTOR PHILLIPS...CAMPBELL...BUENA VENTURA
LAKES...BELLE ISLE AND BAY HILL.
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.
NATIONAL WEATHER SERVICE METEOROLOGISTS ALSO DETECTED SOME WEAK
ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO
MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A SMALL INTERIOR
ROOM.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 2859 8136 2822 8132 2830 8166 2834 8167
2834 8179 2835 8179 2850 8182
TIME...MOT...LOC 0049Z 261DEG 10KT 2842 8172
$$
KELLY1 follow-up statement
878
WWUS52 KMLB 110109
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
909 PM EDT SUN JUN 10 2012
FLC069-095-097-110145-
/O.CON.KMLB.SV.W.0052.000000T0000Z-120611T0145Z/
ORANGE-OSCEOLA-LAKE-
909 PM EDT SUN JUN 10 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR SOUTH CENTRAL LAKE...NORTHWESTERN OSCEOLA AND SOUTHWESTERN ORANGE
COUNTIES...
AT 903 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR SEA WORLD...MOVING EAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
KISSIMMEE...EDGEWOOD AND BUENA VENTURA LAKES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 2849 8165 2850 8137 2822 8132 2830 8166
2834 8167 2834 8174
TIME...MOT...LOC 0108Z 280DEG 26KT 2837 8142
$$
KELLYThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 8:09 PM EDT | Special Weather Statement | MLB | Osceola | 36 min |
| Jun 10, 8:12 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 26 min |
| Jun 10, 8:38 PM EDT | Special Weather Statement | MLB | Orange, Seminole, Volusia | 52 min |
| Jun 10, 9:13 PM EDT | Severe Thunderstorm Warning | MLB | Orange, Osceola | 47 min |
| Jun 10, 9:14 PM EDT | Areal Flood Advisory | MLB | Lake, Orange, Osceola | 76 min |
| Jun 10, 9:50 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Orange, Osceola | 30 min |
| Jun 10, 9:56 PM EDT | Special Marine Warning | MLB | 94 min | |
| Jun 10, 10:19 PM EDT | Special Weather Statement | MLB | Brevard | 41 min |
| Jun 10, 11:27 PM EDT | Special Weather Statement | MLB | Okeechobee | 48 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.