Alert archive / Florida / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 50, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 14, 2011, 2:51 PM EDT for Osceola County, Florida. It was in force for 54 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 14, 2011, 2:51 PM EDT (18:51 UTC)
- Expired
- Jun 14, 2011, 3:45 PM EDT
- In force
- 54 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
County Osceola County, FL
The radar
The Melbourne radar (KMLB), 63 km from the middle of the area, began a volume at 18:53 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, 6.9 hours before the alert went out and 98 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
- 271 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1216 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
841
WUUS52 KMLB 141851
SVRMLB
FLC097-141945-
/O.NEW.KMLB.SV.W.0050.110614T1851Z-110614T1945Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
251 PM EDT TUE JUN 14 2011
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL OSCEOLA COUNTY IN FLORIDA
* UNTIL 345 PM EDT.
* AT 248 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE KISSIMMEE...AND MOVING
SOUTHEAST AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
AREAS OF THE INDICATED COUNTY.
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 2806 8130 2791 8105 2775 8117 2779 8120
2782 8122 2784 8124 2784 8127 2787 8131
2790 8132 2797 8137
TIME...MOT...LOC 1851Z 311DEG 11KT 2795 8131
$$
SEDLOCK2 follow-up statements
224
WWUS52 KMLB 141921
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
321 PM EDT TUE JUN 14 2011
FLC097-141945-
/O.CON.KMLB.SV.W.0050.000000T0000Z-110614T1945Z/
OSCEOLA-
321 PM EDT TUE JUN 14 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL OSCEOLA COUNTY...
AT 316 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE KISSIMMEE...
MOVING SOUTHEAST AT 15 MPH.
THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.
LAT...LON 2798 8121 2791 8105 2775 8117 2779 8120
2782 8122 2784 8124 2784 8127 2787 8131
2790 8132 2791 8133
TIME...MOT...LOC 1920Z 311DEG 11KT 2789 8123
$$
GUSEMAN582
WWUS52 KMLB 141943
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
343 PM EDT TUE JUN 14 2011
FLC097-141952-
/O.EXP.KMLB.SV.W.0050.000000T0000Z-110614T1945Z/
OSCEOLA-
343 PM EDT TUE JUN 14 2011
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OSCEOLA COUNTY WILL
EXPIRE AT 345 PM EDT...
THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE
WARNING HAS BEEN ALLOWED TO EXPIRE.
LAT...LON 2798 8121 2791 8105 2775 8117 2779 8120
2782 8122 2784 8124 2784 8127 2787 8131
2790 8132 2791 8133
TIME...MOT...LOC 1942Z 311DEG 11KT 2785 8117
$$The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 1:46 PM EDT | Special Weather Statement | MLB | Orange | 44 min |
| Jun 14, 2:29 PM EDT | Special Weather Statement | MLB | Osceola | 61 min |
| Jun 14, 2:43 PM EDT | Special Weather Statement | MLB | Seminole | 47 min |
| Jun 14, 2:44 PM EDT | Special Marine Warning | MLB | 91 min | |
| Jun 14, 2:46 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Volusia | 44 min |
| Jun 14, 3:03 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Osceola | 42 min |
| Jun 14, 3:29 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Orange, Seminole, Volusia | 61 min |
| Jun 14, 3:59 PM EDT | Special Marine Warning | MLB | 91 min | |
| Jun 14, 4:25 PM EDT | Special Marine Warning | MLB | 80 min | |
| Jun 14, 5:04 PM EDT | Severe Thunderstorm Warning | MLB | Orange, Osceola | 56 min |
| Jun 14, 5:18 PM EDT | Special Weather Statement | MLB | Martin | 42 min |
| Jun 14, 5:21 PM EDT | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 39 min |
| Jun 14, 5:33 PM EDT | Special Marine Warning | MLB | 87 min | |
| Jun 14, 5:35 PM EDT | Special Weather Statement | MLB | Seminole | 40 min |
| Jun 14, 5:57 PM EDT | Severe Thunderstorm Warning | MLB | Martin | 42 min |
| Jun 14, 5:59 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 50 min |
| Jun 14, 6:19 PM EDT | Special Weather Statement | MLB | Seminole | 41 min |
| Jun 14, 6:29 PM EDT | Severe Thunderstorm Warning | MLB | Brevard, Orange | 48 min |
| Jun 14, 7:17 PM EDT | Special Weather Statement | MLB | Seminole, Volusia | 43 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2011Every severe thunderstorm warning in 2011
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.