Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 68, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 11, 2012, 1:13 PM EDT for Orange County, Osceola County, Florida. It was in force for 45 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
- Jul 11, 2012, 1:13 PM EDT (17:13 UTC)
- Expired
- Jul 11, 2012, 1:58 PM EDT
- In force
- 45 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Orange County, FL, Osceola County, FL
The radar
The Melbourne radar (KMLB), 62 km from the middle of the area, began a volume at 17:14 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, 5.2 hours before the alert went out and 81 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
- 948 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1000 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
997 WUUS52 KMLB 111713 SVRMLB FLC095-097-111815- /O.NEW.KMLB.SV.W.0068.120711T1713Z-120711T1815Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 113 PM EDT WED JUL 11 2012 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL ORANGE COUNTY IN FLORIDA NORTHERN OSCEOLA COUNTY IN FLORIDA * UNTIL 215 PM EDT. * AT 111 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HARMONY...OR NEAR HOLOPAW...AND MOVING NORTHWEST AT 15 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... NARCOOSSEE...SAINT CLOUD...LAKE MARY JANE...WEST LAKE TOHO... KISSIMMEE...EAST LAKE TOHO...CAMPBELL AND BUENA VENTURA LAKES 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 2820 8152 2851 8124 2818 8098 2802 8113 TIME...MOT...LOC 1713Z 128DEG 11KT 2817 8113 $$ 52
2 follow-up statements
164 WWUS52 KMLB 111742 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 142 PM EDT WED JUL 11 2012 FLC095-097-111815- /O.CON.KMLB.SV.W.0068.000000T0000Z-120711T1815Z/ ORANGE-OSCEOLA- 142 PM EDT WED JUL 11 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR NORTHWESTERN OSCEOLA AND SOUTH CENTRAL ORANGE COUNTIES... AT 138 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WEST LAKE TOHO... MOVING NORTHWEST AT 10 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO OSCEOLA ASTROS COMPLEX...BUENA VENTURA LAKES...KISSIMMEE AND CAMPBELL. LAT...LON 2820 8152 2845 8127 2821 8113 2807 8123 TIME...MOT...LOC 1742Z 106DEG 11KT 2820 8137 $$ 52
625 WWUS52 KMLB 111758 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 158 PM EDT WED JUL 11 2012 FLC095-097-111808- /O.CAN.KMLB.SV.W.0068.000000T0000Z-120711T1815Z/ ORANGE-OSCEOLA- 158 PM EDT WED JUL 11 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OSCEOLA AND SOUTH CENTRAL ORANGE COUNTIES IS CANCELLED... THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER CAPABLE OF PRODUCING LARGE HAIL OR DAMAGING WINDS. AS A RESULT...THE WARNING HAS BEEN CANCELLED. HOWEVER...HEAVY RAIN AND DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE. LAT...LON 2820 8152 2845 8127 2821 8113 2807 8123 TIME...MOT...LOC 1758Z 106DEG 11KT 2821 8142 $$ 52
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 9:34 PM EDT | Special Weather Statement | MLB | Polk | 41 min |
| Jul 11, 12:44 PM EDT | Special Marine Warning | MLB | 61 min | |
| Jul 11, 12:54 PM EDT | Special Weather Statement | MLB | Brevard, Indian River, Osceola | 51 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.