Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 111, NWS Mobile, AL

March 31, 2016Okaloosa County, Florida; Covington County, Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 31, 2016, 2:01 PM CDT for Okaloosa County, Florida; Covington County, Escambia County, Alabama. It was in force for 29 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 31, 2016, 2:01 PM CDT (19:01 UTC)
Expired: Mar 31, 2016, 2:30 PM CDT
In force: 29 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.88 in
Wind: 60.0 mph

Counties Covington County, AL, Escambia County, AL, Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 71 km from the middle of the area, began a volume at 19:00 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 31, 2:13 PM CDT	TSTM WND DMG	4 Nw Florala, AL	TREES DOWN REPORTED NEAR HEADQUARTER CAMP RD IN SOUTHERN COVINGTON COUNTY. TIME ESTIMATED VIA RADAR.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.0 hours before the alert went out and 215 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: 53 J/kg
Mixed-layer CIN: -640 J/kg
Mixed-layer LCL: 1024 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

807 
WUUS54 KMOB 311901
SVRMOB
ALC039-053-FLC091-311930-
/O.NEW.KMOB.SV.W.0111.160331T1901Z-160331T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
201 PM CDT THU MAR 31 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHEASTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHEASTERN OKALOOSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 230 PM CDT

* AT 200 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR SAMSON TO NEAR ONYCHA TO NEAR LOCKHART TO 9
  MILES NORTHWEST OF LAUREL HILL...MOVING EAST AT 15 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  FLORALA...LAUREL HILL AND LOCKHART. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

&&

LAT...LON 3099 8639 3096 8639 3094 8649 3093 8672
      3103 8677 3110 8643 3118 8631 3119 8619
      3099 8619
TIME...MOT...LOC 1900Z 282DEG 15KT 3114 8610 3114 8623 3107 8635 3103
8661

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

BUTTS

2 follow-up statements

843 
WWUS54 KMOB 311914
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
214 PM CDT THU MAR 31 2016

ALC053-FLC091-311923-
/O.CAN.KMOB.SV.W.0111.000000T0000Z-160331T1930Z/
ESCAMBIA AL-OKALOOSA FL-
214 PM CDT THU MAR 31 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ESCAMBIA AND
NORTHEASTERN OKALOOSA COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING ARE NO LONGER EXPECTED TO
AFFECT SOUTHEASTERN ESCAMBIA AND NORTHEASTERN OKALOOSA COUNTIES.
THEREFORE...THE WARNING HAS BEEN CANCELLED.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

LAT...LON 3100 8646 3108 8650 3110 8643 3118 8631
      3119 8619 3099 8619
TIME...MOT...LOC 1913Z 270DEG 23KT 3119 8597 3115 8613 3109 8620 3105
8646

$$

ALC039-311930-
/O.CON.KMOB.SV.W.0111.000000T0000Z-160331T1930Z/
COVINGTON AL-
214 PM CDT THU MAR 31 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR SOUTHEASTERN COVINGTON COUNTY...

AT 213 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 10 MILES SOUTHWEST OF ENTERPRISE TO NEAR SAMSON TO 9
MILES NORTHEAST OF FLORALA TO NEAR LAUREL HILL...MOVING EAST AT 25
MPH.

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

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
FLORALA AND LOCKHART. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

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

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

&&

LAT...LON 3100 8646 3108 8650 3110 8643 3118 8631
      3119 8619 3099 8619
TIME...MOT...LOC 1913Z 270DEG 23KT 3119 8597 3115 8613 3109 8620 3105
8646

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

BUTTS

533 
WWUS54 KMOB 311929
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
229 PM CDT THU MAR 31 2016

ALC039-311938-
/O.EXP.KMOB.SV.W.0111.000000T0000Z-160331T1930Z/
COVINGTON AL-
229 PM CDT THU MAR 31 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN COVINGTON COUNTY
WILL EXPIRE AT 230 PM CDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER...GUSTY
WINDS ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

LAT...LON 3100 8646 3108 8650 3110 8643 3118 8631
      3119 8619 3099 8619
TIME...MOT...LOC 1926Z 282DEG 15KT 3119 8597 3115 8613 3109 8620 3105
8646

$$

BUTTS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 8:48 PM CDT	River Flood Warning	MOB	Escambia	24 hr
Mar 30, 8:51 PM CDT	River Flood Warning	MOB	Okaloosa	5 days
Mar 31, 10:01 AM CDT	River Flood Warning	MOB	Escambia	3 days
Mar 31, 10:04 AM CDT	River Flood Warning	MOB	Escambia	6 days
Mar 31, 12:59 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	61 min
Mar 31, 9:08 AM CDT	Severe Thunderstorm Warning	MOB	Mobile, Washington	67 min
Mar 31, 9:27 AM CDT	Areal Flood Advisory	MOB	Mobile, Washington	2 hr
Mar 31, 10:06 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Escambia, Mobile, Monroe, Washington	54 min
Mar 31, 10:14 AM CDT	Special Weather Statement	MOB	Choctaw	61 min
Mar 31, 10:47 AM CDT	Areal Flood Advisory	MOB	Baldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more	118 min
Mar 31, 10:58 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Conecuh, Escambia, Monroe	62 min
Mar 31, 11:33 AM CDT	Special Weather Statement	MOB	Washington	27 min
Mar 31, 11:57 AM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	63 min
Mar 31, 1:06 PM CDT	Special Weather Statement	MOB	Escambia	54 min
Mar 31, 2:32 PM CDT	Special Weather Statement	MOB	Covington	28 min
Mar 31, 5:10 PM CDT	Special Weather Statement	MOB	Choctaw	50 min
Mar 31, 5:26 PM CDT	Special Weather Statement	MOB	Clarke	49 min
Mar 31, 6:06 PM CDT	Tornado Warning	MOB	Choctaw	24 min
Mar 31, 6:15 PM CDT	Tornado Warning Considerable damage threat	MOB	Choctaw, Clarke	45 min
Mar 31, 6:57 PM CDT	Special Weather Statement	MOB	Wilcox	48 min
Mar 31, 6:58 PM CDT	Areal Flood Advisory	MOB	Clarke, Wilcox	3 hr
Mar 31, 6:59 PM CDT	Special Weather Statement	MOB	Clarke	46 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.