Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 91, NWS Mobile, AL

March 17, 2016Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 17, 2016, 8:45 PM CDT for Baldwin County, Mobile County, Alabama. It was in force for 45 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
Mar 17, 2016, 8:45 PM CDT (01:45 UTC)
Expired
Mar 17, 2016, 9:30 PM CDT
In force
45 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Baldwin County, AL, Mobile County, AL

The radar

The Mobile radar (KMOB), 49 km from the middle of the area, began a volume at 01:48 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
Mar 17, 8:54 PM CDTTSTM WND DMG1 Wsw Fairhope, ALTREE ON A HOME AT MOBILE ST AND WHITE AVE RESULTING IN SIGNIFICANT DAMAGE. ANOTHER HOME IN THE AREA SUFFERED SHINGLE DAMAGE. SEVERAL OTHER TREES DOWNED IN THE AREA. NUMEROUS TENTS ASSOCIATED WITH THE ARTS AND CRAFTS FESTIVAL IN DOWNTOWN FAIRHOPE WERE DAMAGED.
Mar 17, 9:15 PM CDTHAIL 0.5Robertsdale, ALBROADCAST MEDIA REPORTS DIME SIZE HAIL IN ROBERTSDALE. TIME FROM RADAR.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 17, 1:19 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.8 hours before the alert went out and 179 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 2016-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 761 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 00:00Z on 2016-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
761 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1293 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.4
Supercell composite
5.5

Open this sounding in Storm Lab

The text

As transmitted.

258 
WUUS54 KMOB 180145
SVRMOB
ALC003-097-180230-
/O.NEW.KMOB.SV.W.0091.160318T0145Z-160318T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
845 PM CDT THU MAR 17 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 930 PM CDT

* AT 843 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR CHICKASAW TO NEAR BELLE FONTAINE TO NEAR GRAND
  BAY...MOVING EAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  MOBILE...DAPHNE...FAIRHOPE...FOLEY...ORANGE BEACH...ROBERTSDALE...BAYOU
  LA BATRE...GRAND BAY...TILLMANS CORNER...POINT CLEAR...THEODORE...
  MIDTOWN MOBILE...ELBERTA...SUMMERDALE...MAGNOLIA SPRINGS...SILVERHILL...
  PERDIDO BEACH...CODEN...I10 AND I65 AND BON SECOUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE IMMEDIATELY TO SHELTER INSIDE A STRONG BUILDING. STAY
AWAY FROM WINDOWS.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3025 8779 3030 8773 3042 8783 3033 8814
      3041 8791 3047 8792 3048 8793 3033 8815
      3039 8840 3054 8836 3073 8815 3065 8803
      3057 8744 3035 8748 3031 8758 3036 8760
      3036 8761 3030 8762 3031 8751 3025 8766
TIME...MOT...LOC 0143Z 280DEG 38KT 3079 8799 3053 8809 3042 8835 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
793 
WWUS54 KMOB 180158
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
858 PM CDT THU MAR 17 2016

ALC003-097-180230-
/O.CON.KMOB.SV.W.0091.000000T0000Z-160318T0230Z/
BALDWIN AL-MOBILE AL-
858 PM CDT THU MAR 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR SOUTHERN BALDWIN AND SOUTH CENTRAL MOBILE COUNTIES...

AT 857 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM DAPHNE TO NEAR POINT CLEAR TO CODEN...MOVING EAST AT 50
MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MOBILE...DAPHNE...FAIRHOPE...FOLEY...ORANGE BEACH...ROBERTSDALE...BAYOU LA
BATRE...POINT CLEAR...THEODORE...ELBERTA...SUMMERDALE...MAGNOLIA SPRINGS...
SILVERHILL...PERDIDO BEACH...CODEN...BON SECOUR...BELLE FONTAINE AND
FAIRHOPE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3025 8779 3030 8773 3042 8783 3033 8814
      3041 8791 3047 8792 3048 8793 3033 8815
      3037 8833 3050 8825 3060 8812 3065 8803
      3057 8744 3035 8748 3031 8758 3036 8760
      3036 8761 3030 8762 3031 8751 3025 8766
TIME...MOT...LOC 0157Z 280DEG 44KT 3061 8791 3051 8795 3040 8821 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 7:23 PM CDTSevere Thunderstorm WarningMOBMobile37 min
Mar 17, 7:37 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile23 min
Mar 17, 7:55 PM CDTSevere Thunderstorm WarningMOBBaldwin, Escambia65 min
Mar 17, 8:00 PM CDTSevere Thunderstorm WarningMOBMobile45 min
Mar 17, 8:02 PM CDTSevere Thunderstorm WarningMOBMobile58 min
Mar 17, 8:16 PM CDTSevere Thunderstorm WarningMOBBaldwin29 min
Mar 17, 8:17 PM CDTSpecial Marine WarningMOB58 min
Mar 17, 8:41 PM CDTSevere Thunderstorm WarningMOBBaldwin38 min
Mar 17, 9:12 PM CDTSpecial Marine WarningMOB63 min
Mar 17, 9:20 PM CDTSpecial Marine WarningMOB55 min
Mar 17, 9:30 PM CDTSevere Thunderstorm WarningMOBBaldwin37 min
Mar 17, 10:00 PM CDTSpecial Marine WarningMOB90 min
Mar 17, 10:10 PM CDTSpecial Marine WarningMOB65 min
Mar 17, 10:18 PM CDTSpecial Marine WarningMOB57 min
Mar 17, 11:16 PM CDTSpecial Marine WarningMOB59 min
Mar 17, 11:30 PM CDTSpecial Marine WarningMOB60 min
Mar 18, 12:42 AM CDTSpecial Marine WarningMOB63 min
Mar 18, 1:09 AM CDTSpecial Marine WarningMOB96 min
Mar 18, 4:43 AM CDTSpecial Marine WarningMOB92 min
Mar 18, 5:25 AM CDTSpecial Weather StatementMOBChoctaw, Clarke, Washington50 min
Mar 18, 6:00 AM CDTSpecial Marine WarningMOB30 min
Mar 18, 6:59 AM CDTSpecial Marine WarningMOB31 min
Mar 18, 7:10 AM CDTSpecial Marine WarningMOB65 min
Mar 18, 8:14 AM CDTSpecial Marine WarningMOB2 hr
Mar 18, 4:05 PM CDTSmall Craft AdvisoryMOB66 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.