Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 67, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 9, 2012, 3:54 PM EDT for Lake County, Orange County, Florida. It was in force for 41 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 9, 2012, 3:54 PM EDT (19:54 UTC)
- Expired
- Jul 9, 2012, 4:35 PM EDT
- In force
- 41 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Lake County, FL, Orange County, FL
The radar
The Melbourne radar (KMLB), 122 km from the middle of the area, began a volume at 19:56 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
Tampa Bay, FL (KTBW), launched 12:00Z, 7.9 hours before the alert went out and 122 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
- 3312 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 649 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -24 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.
401 WUUS52 KMLB 091954 SVRMLB FLC069-095-092045- /O.NEW.KMLB.SV.W.0067.120709T1954Z-120709T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 354 PM EDT MON JUL 9 2012 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL LAKE COUNTY IN FLORIDA NORTHWESTERN ORANGE COUNTY IN FLORIDA * UNTIL 445 PM EDT. * AT 351 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 LAKE APOPKA...AND MOVING NORTHWEST AT 10 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...LAKE APOPKA...FERNDALE...CLERMONT AND HOWEY IN THE HILLS 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 2866 8193 2881 8168 2859 8149 2850 8172 TIME...MOT...LOC 1954Z 124DEG 8KT 2862 8165 $$ MOSES
2 follow-up statements
928 WWUS52 KMLB 092008 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 408 PM EDT MON JUL 9 2012 FLC069-095-092045- /O.CON.KMLB.SV.W.0067.000000T0000Z-120709T2045Z/ ORANGE-LAKE- 408 PM EDT MON JUL 9 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR CENTRAL LAKE AND NORTHWESTERN ORANGE COUNTIES... AT 406 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER LAKE APOPKA...MOVING NORTHWEST AT 5 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MONTVERDE...MINNEOLA...LITTLE LAKE HARRIS...LAKE DORA...HOWEY IN THE HILLS...FERNDALE...CLERMONT AND ASTATULA PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP AWAY FROM WINDOWS. IF ON OR NEAR LAKE APOPKA...GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM! && LAT...LON 2866 8193 2881 8168 2859 8149 2850 8172 TIME...MOT...LOC 2008Z 124DEG 2KT 2864 8164 $$ MOSES
404 WWUS52 KMLB 092035 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 435 PM EDT MON JUL 9 2012 FLC069-095-092045- /O.CAN.KMLB.SV.W.0067.000000T0000Z-120709T2045Z/ ORANGE-LAKE- 435 PM EDT MON JUL 9 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LAKE AND NORTHWESTERN ORANGE COUNTIES IS CANCELLED... THE SEVERE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND ARE NO LONGER CAPABLE OF PRODUCING LARGE HAIL OR DAMAGING WINDS. AS A RESULT...THE WARNING HAS BEEN CANCELLED. HOWEVER...SMALL HAIL... WIND GUSTS TO 45 MPH...HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING STRIKES WILL CONTINUE. LAT...LON 2866 8193 2881 8168 2859 8149 2850 8172 TIME...MOT...LOC 2035Z 124DEG 2KT 2865 8165 $$ CRISTALDI
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 2:41 PM EDT | Special Weather Statement | MLB | Volusia | 64 min |
| Jul 9, 3:25 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Seminole, Volusia | 33 min |
| Jul 9, 3:48 PM EDT | Special Weather Statement | MLB | Lake | 42 min |
| Jul 9, 4:31 PM EDT | Areal Flood Advisory | MLB | Lake, Orange, Seminole | 89 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.