Alert archive / Alabama / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 101, NWS Mobile, AL

July 19, 2015Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 19, 2015, 1:49 PM CDT for Baldwin County, Alabama. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 19, 2015, 1:49 PM CDT (18:49 UTC)
Expired
Jul 19, 2015, 2:30 PM CDT
In force
41 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 70 km from the middle of the area, began a volume at 18:52 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.

What was reported inside it

TimeReportWhereRemark
Jul 19, 1:55 PM CDTTSTM WND GST 61Gulf Shores, ALTHE JACK EDWARDS AIRPORT JKA AWOS MEASURED A WIND GUST OF 61 MPH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 hours before the alert went out and 198 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 2015-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2267 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 2015-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
2267 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1095 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

287 
WUUS54 KMOB 191849
SVRMOB
ALC003-191930-
/O.NEW.KMOB.SV.W.0101.150719T1849Z-150719T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
149 PM CDT SUN JUL 19 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL BALDWIN COUNTY IN SOUTHWESTERN ALABAMA...

* UNTIL 230 PM CDT

* AT 148 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
  WINDS OVER 60 MPH WAS LOCATED NEAR GULF SHORES...AND MOVING SOUTH
  AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FOLEY...               ORANGE BEACH...        ELBERTA...
  BON SECOUR...          

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS OFTEN PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING. PLEASE TAKE COVER UNTIL THE STORM PASSES.

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

&&

LAT...LON 3025 8776 3030 8773 3030 8775 3044 8772
      3043 8757 3031 8757 3031 8758 3034 8758
      3033 8759 3036 8761 3034 8761 3032 8759
      3030 8762 3030 8757 3027 8756 3025 8770
      3026 8769
TIME...MOT...LOC 1848Z 017DEG 10KT 3029 8765 
$$
1 follow-up statement
186 
WWUS54 KMOB 191925
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
225 PM CDT SUN JUL 19 2015

ALC003-191934-
/O.EXP.KMOB.SV.W.0101.000000T0000Z-150719T1930Z/
BALDWIN AL-
225 PM CDT SUN JUL 19 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL BALDWIN COUNTY
WILL BE ALLOWED TO EXPIRE...

AT 224 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTH 
CENTRAL BALDWIN COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS 
THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 230 PM 
CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

&&

LAT...LON 3025 8776 3030 8773 3030 8775 3044 8772
      3043 8757 3031 8757 3031 8758 3034 8758
      3033 8759 3036 8761 3034 8761 3032 8759
      3030 8762 3030 8757 3027 8756 3025 8770
      3026 8769
TIME...MOT...LOC 1920Z 017DEG 10KT 3029 8765 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 11:50 AM CDTSpecial Weather StatementMOBChoctaw25 min
Jul 19, 12:32 PM CDTSpecial Weather StatementMOBChoctaw28 min
Jul 19, 1:25 PM CDTSpecial Marine WarningMOB95 min
Jul 19, 1:41 PM CDTSpecial Weather StatementMOBBaldwin34 min
Jul 19, 2:14 PM CDTSpecial Marine WarningMOB46 min
Jul 19, 2:14 PM CDTSpecial Marine WarningMOB61 min
Jul 19, 2:55 PM CDTSpecial Weather StatementMOBClarke35 min
Jul 19, 4:48 PM CDTSpecial Weather StatementMOBMobile57 min
Jul 19, 4:51 PM CDTSpecial Marine WarningMOB54 min
Jul 19, 5:03 PM CDTSpecial Marine WarningMOB57 min
Jul 19, 5:17 PM CDTAreal Flood AdvisoryMOBConecuh, Covington, Escambia3 hr
Jul 19, 5:28 PM CDTSpecial Weather StatementMOBMobile62 min
Jul 19, 5:36 PM CDTSpecial Marine WarningMOB84 min
Jul 19, 5:44 PM CDTSpecial Marine WarningMOB31 min
Jul 19, 6:00 PM CDTSpecial Marine WarningMOB60 min
Jul 19, 6:24 PM CDTSpecial Weather StatementMOBBaldwin66 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2015Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.