Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 159, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 30, 2012, 8:21 PM CDT for Okaloosa County, Santa Rosa County, Florida; Escambia County, Alabama. It was in force for 25 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 30, 2012, 8:21 PM CDT (01:21 UTC)
- Expired
- Jul 30, 2012, 8:46 PM CDT
- In force
- 25 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Escambia County, AL, Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 95 km from the middle of the area, began a volume at 01:21 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.4 hours before the alert went out and 250 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
- 2222 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1177 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
463 WUUS54 KMOB 310121 SVRMOB ALC053-FLC091-113-310215- /O.NEW.KMOB.SV.W.0159.120731T0121Z-120731T0215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 821 PM CDT MON JUL 30 2012 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN OKALOOSA COUNTY IN NORTHWEST FLORIDA... NORTHEASTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA... SOUTHEASTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA... * UNTIL 915 PM CDT * AT 819 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 16 MILES EAST OF EAST BREWTON...OR 4 MILES SOUTH OF US 29 AND CR 43...AND MOVING SOUTH AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... WHITING FIELD... US 29 AND CR 43... THIS INCLUDES INTERSTATE 10 IN FLORIDA BETWEEN MILE MARKERS 38 AND 42. LAT...LON 3063 8680 3072 8709 3120 8686 3116 8671 TIME...MOT...LOC 0121Z 016DEG 22KT 3109 8680 $$
1 follow-up statement
245 WWUS54 KMOB 310146 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 846 PM CDT MON JUL 30 2012 ALC053-FLC091-113-310156- /O.CAN.KMOB.SV.W.0159.000000T0000Z-120731T0215Z/ ESCAMBIA AL-OKALOOSA FL-SANTA ROSA FL- 846 PM CDT MON JUL 30 2012 ...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR NORTHEASTERN SANTA ROSA...NORTHWESTERN OKALOOSA AND SOUTHEASTERN ESCAMBIA COUNTIES... AT 843 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHEASTERN SANTA ROSA...NORTHWESTERN OKALOOSA AND SOUTHEASTERN ESCAMBIA COUNTIES HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. LAT...LON 3063 8680 3072 8709 3120 8686 3116 8671 TIME...MOT...LOC 0146Z 016DEG 22KT 3094 8685 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 7:40 PM CDT | Severe Thunderstorm Warning | MOB | Covington | 51 min |
| Jul 31, 4:33 AM CDT | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 87 min |
| Jul 31, 7:24 AM CDT | Severe Thunderstorm Warning | MOB | Butler, Wilcox | 66 min |
| Jul 31, 7:54 AM CDT | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 23 min |
| Jul 31, 8:15 AM CDT | Special Marine Warning | MOB | 60 min | |
| Jul 31, 8:54 AM CDT | Areal Flood Advisory | MOB | Wilcox | 2 hr |
| Jul 31, 9:14 AM CDT | Special Marine Warning | MOB | 91 min | |
| Jul 31, 9:32 AM CDT | Flash Flood Warning | MOB | Wilcox | 4 hr |
| Jul 31, 10:47 AM CDT | Special Marine Warning | MOB | 58 min | |
| Jul 31, 11:52 AM CDT | Special Marine Warning | MOB | 83 min | |
| Jul 31, 2:41 PM CDT | Special Marine Warning | MOB | 94 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2012Severe Thunderstorm Warnings in Alabama, 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.