Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 93, NWS Mobile, AL

March 17, 2016Baldwin County, Alabama; Escambia County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Mar 17, 2016, 9:30 PM CDT for Baldwin County, Alabama; Escambia County, Florida. It was in force for 37 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: Mar 17, 2016, 9:30 PM CDT (02:30 UTC)
Expired: Mar 17, 2016, 10:07 PM CDT
In force: 37 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Baldwin County, AL, Escambia County, FL

The radar

The Mobile radar (KMOB), 74 km from the middle of the area, began a volume at 02:34 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

Time	Report	Where	Remark
Mar 17, 9:50 PM CDT	TSTM WND DMG	1 Sw Pensacola Naval Ba, FL	LARGE TREE DOWN ON A ROAD AT PENSACOLA NAS

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.

Issued	Product	Office	Lasted
Mar 17, 1:19 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.5 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

173 
WUUS54 KMOB 180230
SVRMOB
ALC003-FLC033-180330-
/O.NEW.KMOB.SV.W.0093.160318T0230Z-160318T0330Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BALDWIN COUNTY IN SOUTHWESTERN ALABAMA...
  SOUTH CENTRAL ESCAMBIA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 1030 PM CDT

* AT 928 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 9 MILES NORTH OF LILLIAN TO NEAR EAST END OF
  DAUPHIN...MOVING SOUTH AT 45 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  PENSACOLA...FOLEY...ORANGE BEACH...BELLVIEW...WEST PENSACOLA...
  WARRINGTON...MYRTLE GROVE...ELBERTA...MAGNOLIA SPRINGS...PERDIDO BEACH...
  MOUTH OF WEEKS BAY...PALMETTO BEACH...LILLIAN AND BON SECOUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3026 8794 3024 8789 3026 8777 3030 8773
      3038 8786 3066 8740 3040 8722 3037 8727
      3037 8732 3033 8717 3034 8731 3033 8734
      3032 8735 3032 8736 3024 8782 3024 8776
      3023 8780 3022 8803
TIME...MOT...LOC 0228Z 340DEG 37KT 3055 8749 3020 8802 

HAIL...0.88IN
WIND...60MPH
 
$$

1 follow-up statement

017 
WWUS54 KMOB 180307
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1007 PM CDT THU MAR 17 2016

ALC003-FLC033-180317-
/O.CAN.KMOB.SV.W.0093.000000T0000Z-160318T0330Z/
BALDWIN AL-ESCAMBIA FL-
1007 PM CDT THU MAR 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BALDWIN AND SOUTH
CENTRAL ESCAMBIA COUNTIES IS CANCELLED...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3026 8794 3024 8789 3026 8777 3030 8773
      3038 8786 3066 8740 3040 8722 3037 8727
      3037 8732 3033 8717 3034 8731 3033 8734
      3032 8735 3032 8736 3024 8782 3024 8776
      3023 8780 3022 8803
TIME...MOT...LOC 0306Z 340DEG 37KT 3018 8734 2983 8786 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 7:23 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	37 min
Mar 17, 7:37 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	23 min
Mar 17, 7:55 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	65 min
Mar 17, 8:00 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	45 min
Mar 17, 8:02 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	58 min
Mar 17, 8:16 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	29 min
Mar 17, 8:17 PM CDT	Special Marine Warning	MOB		58 min
Mar 17, 8:41 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	38 min
Mar 17, 8:45 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	45 min
Mar 17, 9:12 PM CDT	Special Marine Warning	MOB		63 min
Mar 17, 9:20 PM CDT	Special Marine Warning	MOB		55 min
Mar 17, 10:00 PM CDT	Special Marine Warning	MOB		90 min
Mar 17, 10:10 PM CDT	Special Marine Warning	MOB		65 min
Mar 17, 10:18 PM CDT	Special Marine Warning	MOB		57 min
Mar 17, 11:16 PM CDT	Special Marine Warning	MOB		59 min
Mar 17, 11:30 PM CDT	Special Marine Warning	MOB		60 min
Mar 18, 12:42 AM CDT	Special Marine Warning	MOB		63 min
Mar 18, 1:09 AM CDT	Special Marine Warning	MOB		96 min
Mar 18, 4:43 AM CDT	Special Marine Warning	MOB		92 min
Mar 18, 5:25 AM CDT	Special Weather Statement	MOB	Choctaw, Clarke, Washington	50 min
Mar 18, 6:00 AM CDT	Special Marine Warning	MOB		30 min
Mar 18, 6:59 AM CDT	Special Marine Warning	MOB		31 min
Mar 18, 7:10 AM CDT	Special Marine Warning	MOB		65 min
Mar 18, 8:14 AM CDT	Special Marine Warning	MOB		2 hr
Mar 18, 4:05 PM CDT	Small Craft Advisory	MOB		66 hr
Mar 17, 8:52 PM CDT	Special Weather Statement	MOB	Santa Rosa	53 min
Mar 17, 9:28 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	47 min
Mar 17, 9:50 PM CDT	Severe Thunderstorm Warning	MOB	Escambia, Okaloosa, Santa Rosa	55 min
Mar 17, 10:01 PM CDT	River Flood Warning	MOB	Okaloosa	4 days
Mar 17, 10:15 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	30 min
Mar 17, 10:45 PM CDT	Special Weather Statement	MOB	Okaloosa	15 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2016 Severe Thunderstorm Warnings in Florida, 2016 Every 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.