Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 203, NWS Mobile, AL

November 30, 2016Escambia County, Alabama; Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Nov 30, 2016, 12:25 PM CST for Escambia County, Alabama; Escambia County, Santa Rosa County, Florida. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Nov 30, 2016, 12:25 PM CST (18:25 UTC)
Expired
Nov 30, 2016, 1:15 PM CST
In force
50 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Escambia County, AL, Escambia County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 108 km from the middle of the area, began a volume at 18:24 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Nov 30, 11:06 AM CSTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.4 hours before the alert went out and 229 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, Birmingham, AL at 12:00Z on 2016-11-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 492 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, Birmingham, AL at 12:00Z on 2016-11-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
492 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
638 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
1.0
Supercell composite
7.4

Open this sounding in Storm Lab

The text

As transmitted.

569 
WUUS54 KMOB 301825
SVRMOB
ALC053-FLC033-113-301915-
/O.NEW.KMOB.SV.W.0203.161130T1825Z-161130T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1225 PM CST WED NOV 30 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTH CENTRAL ESCAMBIA COUNTY IN NORTHWESTERN FLORIDA...
  NORTHEASTERN SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 115 PM CST

* AT 1224 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 8 MILES EAST OF I65 AND AL 113 TO NEAR POLLARD TO
  CENTURY TO NEAR BRATT...MOVING NORTHEAST AT 60 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  BREWTON...CENTURY...FLOMATON...EAST BREWTON...JAY...POLLARD AND
  RIVERVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST FOR SOUTH CENTRAL
ALABAMA...AND NORTHWESTERN FLORIDA.

LAT...LON 3100 8679 3094 8679 3096 8733 3111 8722
      3119 8723 3124 8677 3122 8676 3120 8677
      3119 8676 3120 8674 3118 8673 3118 8672
      3119 8672 3119 8670 3100 8670
TIME...MOT...LOC 1824Z 244DEG 53KT 3121 8717 3109 8717 3097 8726 3088
8742

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
024 
WWUS54 KMOB 301900
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
100 PM CST WED NOV 30 2016

FLC033-301910-
/O.CAN.KMOB.SV.W.0203.000000T0000Z-161130T1915Z/
ESCAMBIA FL-
100 PM CST WED NOV 30 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ESCAMBIA COUNTY
IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST FOR SOUTH CENTRAL
ALABAMA...AND NORTHWESTERN FLORIDA.

LAT...LON 3100 8679 3094 8679 3095 8710 3106 8709
      3121 8701 3124 8677 3122 8676 3120 8677
      3119 8676 3120 8674 3118 8673 3118 8672
      3119 8672 3119 8670 3100 8670
TIME...MOT...LOC 1900Z 271DEG 39KT 3125 8680 3111 8680 3099 8689 3090
8705

$$

ALC053-FLC113-301915-
/O.CON.KMOB.SV.W.0203.000000T0000Z-161130T1915Z/
ESCAMBIA AL-SANTA ROSA FL-
100 PM CST WED NOV 30 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM CST
FOR EASTERN ESCAMBIA AND NORTHEASTERN SANTA ROSA COUNTIES...

AT 100 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 13 MILES EAST OF CASTLEBERRY TO 15 MILES EAST OF EAST
BREWTON TO 11 MILES SOUTHEAST OF RIVERVIEW TO 6 MILES SOUTHEAST OF
JAY...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
BREWTON...EAST BREWTON AND RIVERVIEW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST FOR SOUTH CENTRAL
ALABAMA...AND NORTHWESTERN FLORIDA.

LAT...LON 3100 8679 3094 8679 3095 8710 3106 8709
      3121 8701 3124 8677 3122 8676 3120 8677
      3119 8676 3120 8674 3118 8673 3118 8672
      3119 8672 3119 8670 3100 8670
TIME...MOT...LOC 1900Z 271DEG 39KT 3125 8680 3111 8680 3099 8689 3090
8705

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 30, 5:12 AM CSTSpecial Weather StatementMOBClarke48 min
Nov 30, 7:00 AM CSTSpecial Weather StatementMOBChoctaw60 min
Nov 30, 8:04 AM CSTSpecial Weather StatementMOBChoctaw41 min
Nov 30, 9:36 AM CSTSpecial Weather StatementMOBClarke, Monroe, Wilcox54 min
Nov 30, 10:00 AM CSTSpecial Weather StatementMOBEscambia45 min
Nov 30, 10:07 AM CSTSpecial Marine WarningMOB38 min
Nov 30, 10:19 AM CSTSpecial Marine WarningMOB41 min
Nov 30, 10:29 AM CSTSevere Thunderstorm WarningMOBButler, Monroe, Wilcox61 min
Nov 30, 10:35 AM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Monroe55 min
Nov 30, 10:58 AM CSTSpecial Marine WarningMOB62 min
Nov 30, 11:06 AM CSTSpecial Weather StatementMOBBaldwin, Escambia, Mobile54 min
Nov 30, 11:09 AM CSTSpecial Marine WarningMOB51 min
Nov 30, 11:29 AM CSTSpecial Weather StatementMOBButler, Conecuh, Crenshaw61 min
Nov 30, 11:32 AM CSTSevere Thunderstorm WarningMOBMobile43 min
Nov 30, 11:48 AM CSTSpecial Marine WarningMOB57 min
Nov 30, 11:49 AM CSTSevere Thunderstorm WarningMOBBaldwin, Escambia41 min
Nov 30, 11:55 AM CSTSpecial Marine WarningMOB80 min
Nov 30, 11:58 AM CSTSevere Thunderstorm WarningMOBBaldwin62 min
Nov 30, 12:40 PM CSTSpecial Marine WarningMOB35 min
Nov 30, 12:40 PM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia65 min
Nov 30, 1:01 PM CSTSpecial Marine WarningMOB89 min
Nov 30, 1:18 PM CSTSpecial Marine WarningMOB42 min
Nov 30, 1:44 PM CSTSpecial Weather StatementMOBCovington46 min
Nov 30, 2:08 PM CSTSevere Thunderstorm WarningMOBCovington22 min
Nov 30, 2:28 PM CSTSpecial Marine WarningMOB92 min
Nov 30, 10:04 AM CSTSpecial Weather StatementMOBOkaloosa41 min
Nov 30, 10:40 AM CSTSpecial Weather StatementMOBOkaloosa50 min
Nov 30, 11:33 AM CSTTornado WarningMOBOkaloosa27 min
Nov 30, 12:55 PM CSTSpecial Weather StatementMOBEscambia, Santa Rosa65 min
Nov 30, 1:23 PM CSTHigh Surf AdvisoryMOBEscambia, Okaloosa, Santa Rosa5 hr
Nov 30, 1:41 PM CSTSpecial Weather StatementMOBOkaloosa, Santa Rosa64 min

Nearby

Severe Thunderstorm Warnings in Florida, 2016Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.