Alert archive / Florida / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 69, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 17, 2011, 5:49 PM EDT for Orange County, Osceola County, Florida. It was in force for 56 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 17, 2011, 5:49 PM EDT (21:49 UTC)
- Expired
- Jun 17, 2011, 6:45 PM EDT
- In force
- 56 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Orange County, FL, Osceola County, FL
The radar
The Melbourne radar (KMLB), 87 km from the middle of the area, began a volume at 21:51 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, 9.8 hours before the alert went out and 95 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
- 587 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1402 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
006 WUUS52 KMLB 172149 SVRMLB FLC095-097-172245- /O.NEW.KMLB.SV.W.0069.110617T2149Z-110617T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 549 PM EDT FRI JUN 17 2011 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL ORANGE COUNTY IN FLORIDA NORTHWESTERN OSCEOLA COUNTY IN FLORIDA * UNTIL 645 PM EDT. * AT 542 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 PLEASURE ISLAND...OR NEAR EPCOT. THIS STORM WAS NEARLY STATIONARY. * OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... KISSIMMEE...WINDERMER...UNIVERSAL STUDIOS...SEA WORLD...ORLANDO...ORLANDO INTERNATIONAL AIPORT...OAK RIDGE...DOCTOR PHILLIPS...CONWAY 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. 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 2854 8156 2850 8127 2828 8137 2829 8160 TIME...MOT...LOC 2147Z 231DEG 1KT 2837 8148 $$ BOWEN
2 follow-up statements
824 WWUS52 KMLB 172225 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 625 PM EDT FRI JUN 17 2011 FLC097-172234- /O.CAN.KMLB.SV.W.0069.000000T0000Z-110617T2245Z/ OSCEOLA- 625 PM EDT FRI JUN 17 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OSCEOLA COUNTY IS CANCELLED... LAT...LON 2835 8159 2854 8156 2850 8127 2834 8134 TIME...MOT...LOC 2224Z 231DEG 1KT 2844 8144 $$ FLC095-172245- /O.CON.KMLB.SV.W.0069.000000T0000Z-110617T2245Z/ ORANGE- 625 PM EDT FRI JUN 17 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR CENTRAL ORANGE COUNTY... AT 619 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 TANGELO PARK...OR NEAR OAK RIDGE. THIS STORM WAS NEARLY STATIONARY. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNIVERSAL STUDIOS...PINE CASTLE...ORLANDO INTERNATIONAL AIRPORT... ORLANDO...EDGEWOOD...CONWAY AND BELLE ISLE 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 2835 8159 2854 8156 2850 8127 2834 8134 TIME...MOT...LOC 2224Z 231DEG 1KT 2844 8144 $$ BOWEN
777 WWUS52 KMLB 172239 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 639 PM EDT FRI JUN 17 2011 FLC095-172249- /O.EXP.KMLB.SV.W.0069.000000T0000Z-110617T2245Z/ ORANGE- 639 PM EDT FRI JUN 17 2011 ...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ORANGE COUNTY WILL EXPIRE AT 645 PM EDT... THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 2835 8159 2854 8156 2850 8127 2834 8134 TIME...MOT...LOC 2239Z 231DEG 1KT 2844 8144 $$ KELLY
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 2:55 PM EDT | Special Weather Statement | MLB | Martin, Saint Lucie | 50 min |
| Jun 17, 3:41 PM EDT | Special Weather Statement | MLB | Martin, Saint Lucie | 49 min |
| Jun 17, 3:47 PM EDT | Special Weather Statement | MLB | Okeechobee | 58 min |
| Jun 17, 4:06 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 39 min |
| Jun 17, 4:14 PM EDT | Severe Thunderstorm Warning | MLB | Martin | 31 min |
| Jun 17, 4:45 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 44 min |
| Jun 17, 5:15 PM EDT | Special Weather Statement | MLB | Orange | 60 min |
| Jun 17, 6:02 PM EDT | Severe Thunderstorm Warning | MLB | Seminole, Volusia | 58 min |
| Jun 17, 6:11 PM EDT | Special Weather Statement | MLB | Lake | 49 min |
| Jun 17, 6:36 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Volusia | 54 min |
| Jun 17, 6:48 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange | 57 min |
| Jun 17, 7:02 PM EDT | Special Marine Warning | MLB | 118 min | |
| Jun 17, 7:17 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 42 min |
| Jun 17, 7:32 PM EDT | Special Weather Statement | MLB | Volusia | 43 min |
| Jun 17, 7:41 PM EDT | Areal Flood Advisory | MLB | Lake, Volusia | 2 hr |
| Jun 17, 7:41 PM EDT | Special Weather Statement | MLB | Lake | 49 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.