Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 29, NWS Mobile, AL

May 12, 2012Escambia County, Florida

NWS Mobile, AL issued this tornado warning at May 12, 2012, 7:44 PM CDT for Escambia County, Florida. It was in force for 16 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
May 12, 2012, 7:44 PM CDT (00:44 UTC)
Expired
May 12, 2012, 8:00 PM CDT
In force
16 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Escambia County, FL

The radar

The Mobile radar (KMOB), 94 km from the middle of the area, began a volume at 00:45 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 00:00Z, 0.7 hours before the alert went out and 227 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.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2012-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2012-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
12 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1195 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

930 
WFUS54 KMOB 130044
TORMOB
FLC033-130100-
/O.NEW.KMOB.TO.W.0029.120513T0044Z-120513T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
744 PM CDT SAT MAY 12 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL ESCAMBIA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 800 PM CDT

* AT 740 PM CDT...A TORNADO WAS REPORTED OVER JOHNSONS BEACH...
  MOVING NORTH AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  JOHNSONS BEACH...NAVY PENSACOLA...PLEASANT GROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.

&&

LAT...LON 3031 8736 3040 8738 3041 8729 3032 8731
      3031 8733
TIME...MOT...LOC 0042Z 186DEG 11KT 3034 8733

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 8:00 PM CDTTornado WarningMOBEscambia30 min
May 12, 9:05 PM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa115 min
May 13, 6:40 AM CDTSevere Thunderstorm WarningMOBOkaloosa35 min
May 13, 7:14 AM CDTTornado WarningMOBOkaloosa33 min

Nearby

Tornado Warnings in Florida, 2012Every tornado warning in 2012Tornadoes 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.