Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 59, NWS Mobile, AL

February 23, 2016Covington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 23, 2016, 9:08 PM CST for Covington County, Alabama. It was in force for 22 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
Feb 23, 2016, 9:08 PM CST (03:08 UTC)
Expired
Feb 23, 2016, 9:30 PM CST
In force
22 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Covington County, AL

The radar

The Eglin Afb radar (KEVX), 64 km from the middle of the area, began a volume at 03:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 23, 2:13 PM CSTTornado Watch PDSSPC8 hr
Feb 23, 8:08 PM CSTTornado WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.1 hours before the alert went out and 203 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, Tallahassee Rgnl, FL at 00:00Z on 2016-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 100 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, Tallahassee Rgnl, FL at 00:00Z on 2016-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939587897Sfc1 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
100 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

972 
WUUS54 KMOB 240308
SVRMOB
ALC039-240330-
/O.NEW.KMOB.SV.W.0059.160224T0308Z-160224T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
908 PM CST TUE FEB 23 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 930 PM CST

* AT 908 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER FLORALA...
  MOVING NORTHEAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  FLORALA AND LOCKHART. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FOR SOUTH CENTRAL
ALABAMA AND NORTHWESTERN FLORIDA.

LAT...LON 3099 8627 3099 8640 3107 8642 3121 8620
      3101 8619
TIME...MOT...LOC 0308Z 244DEG 32KT 3103 8630 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
158 
WWUS54 KMOB 240326
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
926 PM CST TUE FEB 23 2016

ALC039-240336-
/O.EXP.KMOB.SV.W.0059.000000T0000Z-160224T0330Z/
COVINGTON AL-
926 PM CST TUE FEB 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN COVINGTON COUNTY
WILL EXPIRE AT 930 PM CST...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST FOR SOUTH CENTRAL
ALABAMA AND NORTHWESTERN FLORIDA.

LAT...LON 3099 8627 3099 8640 3107 8642 3121 8620
      3101 8619
TIME...MOT...LOC 0324Z 244DEG 32KT 3103 8630 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 6:01 PM CSTSpecial Marine WarningMOB59 min
Feb 23, 6:06 PM CSTFlash Flood WarningMOBChoctaw, Clarke, Washington3 hr
Feb 23, 6:06 PM CSTSpecial Marine WarningMOB54 min
Feb 23, 6:10 PM CSTTornado WarningMOBChoctaw, Clarke, Washington50 min
Feb 23, 6:29 PM CSTTornado WarningMOBBaldwin, Clarke, Mobile, Washington11 min
Feb 23, 6:31 PM CSTSevere Thunderstorm WarningMOBClarke, Mobile, Monroe, Washington, Wilcox44 min
Feb 23, 6:35 PM CSTSevere Thunderstorm WarningMOBWashington25 min
Feb 23, 6:58 PM CSTSpecial Marine WarningMOB62 min
Feb 23, 7:00 PM CSTSpecial Marine WarningMOB30 min
Feb 23, 7:13 PM CSTTornado Warning Considerable damage threatMOBBaldwin62 min
Feb 23, 7:14 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Washington, Wilcox46 min
Feb 23, 7:17 PM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Monroe, Washington43 min
Feb 23, 7:25 PM CSTFlash Flood WarningMOBChoctaw, Clarke, Wilcox3 hr
Feb 23, 7:27 PM CSTSpecial Marine WarningMOB48 min
Feb 23, 7:28 PM CSTAreal Flood AdvisoryMOBBaldwin2 hr
Feb 23, 7:34 PM CSTAreal Flood AdvisoryMOBMobile116 min
Feb 23, 8:01 PM CSTSevere Thunderstorm WarningMOBWilcox21 min
Feb 23, 8:09 PM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Monroe, Washington39 min
Feb 23, 8:15 PM CSTSpecial Marine WarningMOB15 min
Feb 23, 8:28 PM CSTSpecial Marine WarningMOB32 min
Feb 23, 8:30 PM CSTFlash Flood WarningMOBBaldwin2 hr
Feb 23, 8:59 PM CSTSpecial Marine WarningMOB61 min
Feb 23, 9:56 PM CSTSpecial Weather StatementMOBMonroe34 min
Feb 23, 9:57 PM CSTSpecial Marine WarningMOB63 min
Feb 24, 12:44 AM CSTSpecial Weather StatementMOBChoctaw76 min
Feb 24, 3:59 AM CSTGale WarningMOB17 hr
Feb 24, 1:02 PM CSTRiver Flood WarningMOBDallas, Monroe, Wilcox4 days
Feb 24, 1:02 PM CSTRiver Flood WarningMOBClarke, Monroe, Wilcox8 days

Nearby

Severe Thunderstorm Warnings in Alabama, 2016Every severe thunderstorm warning in 2016

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.