Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 48, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 10, 2012, 4:39 PM EDT for Volusia County, Florida. It was in force for 66 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, 4:39 PM EDT (20:39 UTC)
- Expired
- Jun 10, 2012, 5:45 PM EDT
- In force
- 66 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
County Volusia County, FL
The radar
The Melbourne radar (KMLB), 114 km from the middle of the area, began a volume at 20:40 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, 8.7 hours before the alert went out and 86 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
- 741 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 953 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
522 WUUS52 KMLB 102039 SVRMLB FLC127-102145- /O.NEW.KMLB.SV.W.0048.120610T2039Z-120610T2145Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 439 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 545 PM EDT. * AT 436 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 SOUTHWEST OF PORT ORANGE...OR 8 MILES NORTHEAST OF LAKE HELEN...AND MOVING NORTHEAST AT 5 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... NEW SMYRNA BEACH AND SOUTH DAYTONA. 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. && LAT...LON 2921 8099 2900 8091 2891 8111 2908 8123 TIME...MOT...LOC 2039Z 247DEG 4KT 2906 8114 $$ KELLY
3 follow-up statements
754 WWUS52 KMLB 102054 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 454 PM EDT SUN JUN 10 2012 FLC127-102145- /O.CON.KMLB.SV.W.0048.000000T0000Z-120610T2145Z/ VOLUSIA- 454 PM EDT SUN JUN 10 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR CENTRAL VOLUSIA COUNTY... AT 450 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SPRUCE CREEK...OR 8 MILES SOUTHWEST OF PORT ORANGE... MOVING SOUTHEAST AT 5 TO 10 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE ASHBY...ALLANDALE...HARBOR OAKS AND NEW SMYRNA BEACH. PRECAUTIONARY/PREPAREDNESS ACTIONS... NATIONAL WEATHER SERVICE METEOROLOGISTS ALSO DETECTED WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A SMALL INTERIOR ROOM. IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM WHICH COULD BECOME EXCESSIVE. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 2919 8098 2900 8091 2891 8111 2908 8123 TIME...MOT...LOC 2052Z 298DEG 7KT 2904 8111 $$ KELLY
282 WWUS52 KMLB 102130 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 530 PM EDT SUN JUN 10 2012 FLC127-102145- /O.CON.KMLB.SV.W.0048.000000T0000Z-120610T2145Z/ VOLUSIA- 530 PM EDT SUN JUN 10 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR CENTRAL VOLUSIA COUNTY... AT 527 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 8 MILES EAST OF LAKE HELEN...MOVING SOUTH AT 5 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...LAKE ASHBY. PRECAUTIONARY/PREPAREDNESS ACTIONS... NATIONAL WEATHER SERVICE METEOROLOGISTS ALSO DETECTED 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. && LAT...LON 2913 8100 2899 8093 2891 8111 2904 8120 TIME...MOT...LOC 2129Z 338DEG 5KT 2899 8110 $$ KELLY
977 WWUS52 KMLB 102142 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 542 PM EDT SUN JUN 10 2012 FLC127-102151- /O.EXP.KMLB.SV.W.0048.000000T0000Z-120610T2145Z/ VOLUSIA- 542 PM EDT SUN JUN 10 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL VOLUSIA COUNTY WILL EXPIRE AT 545 PM EDT... THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING WILL BE ALLOWED TO EXPIRE. LAT...LON 2913 8100 2899 8093 2891 8111 2904 8120 TIME...MOT...LOC 2141Z 338DEG 5KT 2897 8109 $$ KELLY
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 8:11 PM EDT | Special Weather Statement | MLB | Osceola | 49 min |
| Jun 10, 3:39 PM EDT | Areal Flood Advisory | MLB | Volusia | 51 min |
| Jun 10, 5:55 PM EDT | Special Weather Statement | MLB | Volusia | 65 min |
| Jun 10, 6:26 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Volusia | 64 min |
| Jun 10, 7:23 PM EDT | Special Weather Statement | MLB | Seminole | 37 min |
| Jun 10, 7:29 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Seminole, Volusia | 61 min |
| Jun 10, 7:48 PM EDT | Special Weather Statement | MLB | Lake | 42 min |
| Jun 10, 7:52 PM EDT | Special Weather Statement | MLB | Volusia | 38 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.