Alert archive / Alabama / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 63, NWS Mobile, AL

June 23, 2015Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 23, 2015, 2:27 PM CDT for Mobile County, Alabama. It was in force for 33 min. 2 reports 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
Jun 23, 2015, 2:27 PM CDT (19:27 UTC)
Expired
Jun 23, 2015, 3:00 PM CDT
In force
33 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Mobile County, AL

The radar

The Mobile radar (KMOB), 21 km from the middle of the area, began a volume at 19:30 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
Jun 23, 2:53 PM CDTHAIL 13 Nne Grand Bay, ALBROADCAST MEDIA REPORTED NICKEL TO QUARTER SIZE HAIL AT MOBILE INTERNATIONAL SPEEDWAY.
Jun 23, 2:53 PM CDTHAIL 14 Sw Theodore, ALBROADCAST MEDIA REPORTED NICKEL TO QUARTER SIZE HAIL AT MOBILE INTERNATIONAL SPEEDWAY.

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, 7.5 hours before the alert went out and 143 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 2015-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2882 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 2015-06-23The 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
2882 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
933 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
-36 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.

029 
WUUS54 KMOB 231927
SVRMOB
ALC097-232000-
/O.NEW.KMOB.SV.W.0063.150623T1927Z-150623T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
227 PM CDT TUE JUN 23 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MOBILE COUNTY IN SOUTHWESTERN ALABAMA...

* UNTIL 300 PM CDT

* AT 226 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
  SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED NEAR
  THEODORE...AND WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  MOBILE...              THEODORE...            GRAND BAY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO 
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS 
IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE 
STRUCK BY LIGHTNING.

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

&&

LAT...LON 3058 8840 3058 8814 3044 8811 3042 8810
      3041 8811 3041 8839
TIME...MOT...LOC 1926Z 326DEG 4KT 3052 8824 
$$
1 follow-up statement
884 
WWUS54 KMOB 231951
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
251 PM CDT TUE JUN 23 2015

ALC097-232000-
/O.CON.KMOB.SV.W.0063.000000T0000Z-150623T2000Z/
MOBILE AL-
251 PM CDT TUE JUN 23 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT
FOR SOUTHWESTERN MOBILE COUNTY...
    
AT 250 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED NEAR THEODORE.
THE STORM WAS DRIFTING SLOWLY SOUTHEAST AT LESS THAN 5 MPH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. PREPARE FOR LARGE HAIL. PEOPLE OUTSIDE 
SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

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

&&

LAT...LON 3058 8840 3058 8814 3044 8811 3042 8810
      3041 8811 3041 8839
TIME...MOT...LOC 1950Z 314DEG 2KT 3051 8823 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 10:03 AM CDTHeat AdvisoryMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more8 hr
Jun 23, 1:46 PM CDTSpecial Weather StatementMOBBaldwin29 min
Jun 23, 2:01 PM CDTSevere Thunderstorm WarningMOBBaldwin44 min
Jun 23, 3:01 PM CDTSevere Thunderstorm WarningMOBMobile31 min
Jun 23, 5:00 PM CDTSpecial Weather StatementMOBMobile45 min
Jun 23, 6:27 PM CDTSpecial Weather StatementMOBCrenshaw63 min
Jun 23, 6:38 PM CDTSevere Thunderstorm WarningMOBCrenshaw33 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.