Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 111, NWS Mobile, AL

July 3, 2012Escambia County, Florida; Baldwin County, Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 3, 2012, 3:14 PM CDT for Escambia County, Florida; Baldwin County, Escambia County, Alabama. It was in force for 61 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 3, 2012, 3:14 PM CDT (20:14 UTC)
Expired
Jul 3, 2012, 4:15 PM CDT
In force
61 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Baldwin County, AL, Escambia County, AL, Escambia County, FL

The radar

The Mobile radar (KMOB), 55 km from the middle of the area, began a volume at 20:17 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, 8.2 hours before the alert went out and 202 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 12:00Z on 2012-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1652 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2012-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 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
1652 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
51 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.

601 
WUUS54 KMOB 032014
SVRMOB
ALC003-053-FLC033-032115-
/O.NEW.KMOB.SV.W.0111.120703T2014Z-120703T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
314 PM CDT TUE JUL 3 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  SOUTHWESTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 415 PM CDT

* AT 308 PM CDT... DEVELOPING SEVERE THUNDERSTORMS CAPABLE OF        
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS     
  LOCATED OVER NORTHEAST BALDWIN COUNTY OF ALABAMA AND NORTHWEST     
  ESCAMBIA IN FLORIDA. THE THUNDERSTORMS WAS NEARLY WERE STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  MOLINO...             I65 AND CR 47...      I65 AND AL 59...
  I65 AND AL 287...     I65 AND AL 225...     BAY MINETTE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 27 AND 49.

LAT...LON 3090 8796 3093 8794 3093 8791 3095 8787
      3097 8789 3098 8787 3099 8790 3103 8791
      3102 8794 3109 8788 3112 8790 3116 8773
      3084 8730 3073 8731 3072 8728 3070 8727
      3060 8752
TIME...MOT...LOC 2012Z 078DEG 2KT 3083 8765

$$
1 follow-up statement
755 
WWUS54 KMOB 032052
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
352 PM CDT TUE JUL 3 2012

ALC053-FLC033-032100-
/O.CAN.KMOB.SV.W.0111.000000T0000Z-120703T2115Z/
ESCAMBIA AL-ESCAMBIA FL-
352 PM CDT TUE JUL 3 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR NORTHERN 
ESCAMBIA COUNTY OF FLORIDA AND SOUTHWESTERN ESCAMBIA COUNTY OF 
ALABAMA...

AT 344 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHERN 
ESCAMBIA COUNTY OF FLORIDA AND SOUTHWESTERN ESCAMBIA COUNTY OF 
ALABAMA COUNTIES HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE 
SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

LAT...LON 3090 8796 3093 8794 3095 8787 3098 8787
      3099 8790 3102 8790 3103 8794 3109 8788
      3112 8790 3116 8773 3107 8761 3100 8762
      3095 8759 3085 8763 3078 8754 3074 8753
      3068 8741 3065 8740 3060 8752
TIME...MOT...LOC 2050Z 078DEG 2KT 3083 8767

$$

ALC003-032115-
/O.CON.KMOB.SV.W.0111.000000T0000Z-120703T2115Z/
BALDWIN AL-
352 PM CDT TUE JUL 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHERN BALDWIN COUNTY...

AT 344 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED ACROSS 
NORTHERN BALDWIN COUNTY OF ALABAMA. THE STORMS WERE NEARLY 
STATIONARY.

LOCATIONS IMPACTED INCLUDE...
  I65 AND CR 47...      I65 AND AL 59...      I65 AND AL 287...
  I65 AND AL 225...     BAY MINETTE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 27 AND 47.

LAT...LON 3090 8796 3093 8794 3095 8787 3098 8787
      3099 8790 3102 8790 3103 8794 3109 8788
      3112 8790 3116 8773 3107 8761 3100 8762
      3095 8759 3085 8763 3078 8754 3074 8753
      3068 8741 3065 8740 3060 8752
TIME...MOT...LOC 2050Z 078DEG 2KT 3083 8767

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 4:12 PM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa52 min
Jul 3, 1:58 PM CDTSevere Thunderstorm WarningMOBClarke32 min
Jul 3, 2:47 PM CDTSevere Thunderstorm WarningMOBConecuh, Escambia, Monroe32 min
Jul 3, 2:53 PM CDTSevere Thunderstorm WarningMOBMobile25 min
Jul 3, 3:31 PM CDTSevere Thunderstorm WarningMOBMobile, Washington31 min
Jul 3, 3:43 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile36 min
Jul 3, 4:01 PM CDTSpecial Marine WarningMOB89 min
Jul 3, 4:25 PM CDTSevere Thunderstorm WarningMOBBaldwin23 min
Jul 3, 4:43 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw62 min
Jul 3, 5:14 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw49 min
Jul 3, 6:27 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw29 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2012Severe 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.