Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 137, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 17, 2012, 4:55 PM CDT for Santa Rosa County, Florida. It was in force for 50 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 17, 2012, 4:55 PM CDT (21:55 UTC)
- Expired
- Jul 17, 2012, 5:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 97 km from the middle of the area, began a volume at 21:54 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 242 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
- 1803 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- -27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
592
WUUS54 KMOB 172155
SVRMOB
FLC113-172245-
/O.NEW.KMOB.SV.W.0137.120717T2155Z-120717T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
455 PM CDT TUE JUL 17 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WEST CENTRAL SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
* UNTIL 545 PM CDT
* AT 453 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 9 MILES EAST
OF MOLINO...OR 8 MILES NORTHWEST OF POINT BAKER...AND MOVING SOUTH
AT 10 MPH.
* LOCATIONS IMPACTED INCLUDE...
POINT BAKER... PEA RIDGE... PACE...
MILTON... BAGDAD...
LAT...LON 3059 8723 3061 8724 3062 8726 3063 8725
3066 8727 3069 8727 3069 8728 3071 8727
3072 8728 3082 8728 3082 8707 3058 8701
TIME...MOT...LOC 2155Z 000DEG 8KT 3073 8717
$$1 follow-up statement
547
WWUS54 KMOB 172237
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
537 PM CDT TUE JUL 17 2012
FLC113-172247-
/O.EXP.KMOB.SV.W.0137.000000T0000Z-120717T2245Z/
SANTA ROSA FL-
537 PM CDT TUE JUL 17 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
WEST CENTRAL SANTA ROSA COUNTY...
AT 531 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR WEST CENTRAL
SANTA ROSA COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 545 PM CDT.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
LAT...LON 3059 8723 3061 8724 3062 8726 3063 8725
3066 8727 3069 8727 3069 8728 3071 8727
3072 8728 3082 8728 3082 8707 3058 8701
TIME...MOT...LOC 2237Z 000DEG 8KT 3064 8717
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 2:41 PM CDT | Areal Flood Advisory | MOB | Okaloosa | 2 hr |
| Jul 17, 3:31 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 26 min |
| Jul 17, 3:33 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 16 min |
| Jul 17, 3:41 PM CDT | Severe Thunderstorm Warning | MOB | Santa Rosa | 26 min |
| Jul 17, 4:10 PM CDT | Severe Thunderstorm Warning | MOB | Escambia, Santa Rosa | 36 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.