Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 51, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 10, 2012, 8:12 PM EDT for Volusia County, Florida. It was in force for 26 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, 8:12 PM EDT (00:12 UTC)
- Expired
- Jun 10, 2012, 8:38 PM EDT
- In force
- 26 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
County Volusia County, FL
The radar
The Melbourne radar (KMLB), 112 km from the middle of the area, began a volume at 00:12 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
Jacksonville, FL (KJAX), launched 00:00Z, 0.2 hours before the alert went out and 172 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
- 1797 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 793 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
891 WUUS52 KMLB 110012 SVRMLB FLC127-110100- /O.NEW.KMLB.SV.W.0051.120611T0012Z-120611T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 812 PM EDT SUN JUN 10 2012 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL VOLUSIA COUNTY IN FLORIDA * UNTIL 900 PM EDT. * AT 807 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 8 MILES NORTHEAST OF DELAND...AND MOVING SOUTHEAST AT 15 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... LAKE HELEN AND PORT ORANGE 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 2904 8092 2888 8109 2903 8135 2924 8115 TIME...MOT...LOC 0011Z 311DEG 9KT 2909 8117 $$ WEITLICH
2 follow-up statements
145 WWUS52 KMLB 110027 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 827 PM EDT SUN JUN 10 2012 FLC127-110100- /O.CON.KMLB.SV.W.0051.000000T0000Z-120611T0100Z/ VOLUSIA- 827 PM EDT SUN JUN 10 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR CENTRAL VOLUSIA COUNTY... AT 821 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE HELEN...MOVING SOUTHEAST AT 10 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SPRUCE CREEK AND LAKE ASHBY LAT...LON 2921 8112 2904 8092 2888 8109 2900 8130 TIME...MOT...LOC 0025Z 311DEG 9KT 2903 8117 $$ WEITLICH
257 WWUS52 KMLB 110038 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 838 PM EDT SUN JUN 10 2012 FLC127-110048- /O.CAN.KMLB.SV.W.0051.000000T0000Z-120611T0100Z/ VOLUSIA- 838 PM EDT SUN JUN 10 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL VOLUSIA COUNTY 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...STRONG WIND GUSTS UP TO 40 TO 50 MPH...HEAVY RAIN AND DANGEROUS LIGHTNING STRIKES WILL CONTINUE TO BE POSSIBLE. LAT...LON 2921 8112 2904 8092 2888 8109 2900 8130 TIME...MOT...LOC 0038Z 311DEG 9KT 2901 8114 $$ WEITLICH
The 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, 8:38 PM EDT | Special Weather Statement | MLB | Orange, Seminole, Volusia | 52 min |
| Jun 10, 8:50 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Osceola | 55 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.