Alert archive / Alabama / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 39, NWS Mobile, AL

April 7, 2014Baldwin County, Escambia County, Alabama; Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Apr 7, 2014, 6:49 AM CDT for Baldwin County, Escambia County, Alabama; Escambia County, Santa Rosa County, Florida. It was in force for 56 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: Apr 7, 2014, 6:49 AM CDT (11:49 UTC)
Expired: Apr 7, 2014, 7:45 AM CDT
In force: 56 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

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

The radar

The Mobile radar (KMOB), 73 km from the middle of the area, began a volume at 11:52 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.

Issued	Product	Office	Lasted
Apr 7, 1:16 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 11.8 hours before the alert went out and 219 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: 1102 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 542 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 330 m²/s²
0-3 km storm-relative helicity: 422 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 11.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

636 
WUUS54 KMOB 071149
SVRMOB
ALC003-053-FLC033-113-071245-
/O.NEW.KMOB.SV.W.0039.140407T1149Z-140407T1245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
649 AM CDT MON APR 7 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  NORTHWESTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
  EXTREME SOUTH CENTRAL ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 745 AM CDT

* AT 648 AM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
  4 MILES SOUTHEAST OF ATMORE TO 11 MILES SOUTHEAST OF BAY MINETTE TO
  4 MILES NORTHEAST OF ROBERTSDALE TO 6 MILES EAST OF POINT CLEAR...
  AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHITFIELD...          PINE LEVEL...         JAY...
  FLOMATON...           MOLINO...             GONZALEZ...
  ENSLEY...             CENTURY...            BELLVIEW...

THIS INCLUDES INTERSTATE 10 IN FLORIDA BETWEEN MILE MARKERS 1 AND 10.
THIS INCLUDES INTERSTATE 10 IN ALABAMA BETWEEN MILE MARKERS 44 AND
66.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. PREPARE FOR DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY.

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

&&

LAT...LON 3043 8789 3060 8780 3081 8773 3101 8748
      3101 8689 3084 8708 3063 8715 3040 8734
TIME...MOT...LOC 1148Z 267DEG 27KT 3098 8744 3082 8760
          3061 8768 3045 8781

$$

1 follow-up statement

852 
WWUS54 KMOB 071227
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
727 AM CDT MON APR 7 2014

ALC003-053-FLC033-113-071245-
/O.CON.KMOB.SV.W.0039.000000T0000Z-140407T1245Z/
ESCAMBIA AL-SANTA ROSA FL-ESCAMBIA FL-BALDWIN AL-
727 AM CDT MON APR 7 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM CDT
FOR SOUTHERN BALDWIN...ESCAMBIA...NORTHWESTERN SANTA ROSA AND EXTREME
SOUTH CENTRAL ESCAMBIA COUNTIES...

AT 727 AM CDT...A LINE OF SEVERE THUNDERSTORMS WERE LOCATED ALONG A
LINE EXTENDING FROM 7 MILES SOUTH OF EAST BREWTON TO 7 MILES WEST OF
GONZALEZ TO 4 MILES NORTHEAST OF FOLEY...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  WHITFIELD...          PINE LEVEL...         JAY...
  FLOMATON...           MOLINO...             GONZALEZ...
  ENSLEY...             CENTURY...            BELLVIEW...

THIS INCLUDES INTERSTATE 10 IN FLORIDA BETWEEN MILE MARKERS 1 AND 11.
THIS INCLUDES INTERSTATE 10 IN ALABAMA BETWEEN MILE MARKERS 48 AND
66.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CDT MONDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3043 8789 3060 8779 3076 8756 3091 8732
      3100 8727 3101 8689 3084 8708 3063 8715
      3040 8734
TIME...MOT...LOC 1227Z 269DEG 33KT 3099 8704 3062 8738
          3044 8760

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 7:16 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	74 min
Apr 6, 7:36 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	24 min
Apr 6, 8:01 PM CDT	Severe Thunderstorm Warning	MOB	Crenshaw	14 min
Apr 6, 11:30 PM CDT	Areal Flood Warning	MOB	Butler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 3 more	12 hr
Apr 7, 3:22 AM CDT	Tornado Warning	MOB	Clarke, Washington	38 min
Apr 7, 3:50 AM CDT	Flash Flood Warning	MOB	Choctaw, Clarke, Conecuh, Monroe, Washington, Wilcox	4 hr
Apr 7, 3:50 AM CDT	Tornado Warning	MOB	Monroe, Wilcox	40 min
Apr 7, 4:41 AM CDT	Tornado Warning	MOB	Baldwin, Clarke, Mobile, Monroe	49 min
Apr 7, 4:58 AM CDT	Severe Thunderstorm Warning	MOB	Butler	62 min
Apr 7, 5:23 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	52 min
Apr 7, 5:41 AM CDT	Areal Flood Advisory	MOB	Baldwin, Clarke, Mobile, Washington	2 hr
Apr 7, 6:08 AM CDT	Flash Flood Warning	MOB	Baldwin, Clarke, Mobile, Washington	112 min
Apr 7, 6:10 AM CDT	Tornado Warning	MOB	Butler, Conecuh, Monroe	50 min
Apr 7, 6:16 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Conecuh, Escambia, Monroe	44 min
Apr 7, 6:23 AM CDT	Special Marine Warning	MOB		97 min
Apr 7, 6:30 AM CDT	Flash Flood Warning	MOB	Baldwin, Clarke, Conecuh, Escambia, Monroe	2 hr
Apr 7, 6:43 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia, Monroe	47 min
Apr 7, 7:36 AM CDT	Special Marine Warning	MOB		84 min
Apr 7, 8:04 AM CDT	Areal Flood Advisory	MOB	Baldwin, Escambia, Mobile	116 min
Apr 7, 8:20 AM CDT	Severe Thunderstorm Warning	MOB	Covington, Escambia	55 min
Apr 7, 8:28 AM CDT	Areal Flood Advisory	MOB	Baldwin, Covington, Crenshaw, Escambia	2 hr
Apr 7, 8:35 AM CDT	Special Marine Warning	MOB		55 min
Apr 7, 8:40 AM CDT	Severe Thunderstorm Warning	MOB	Covington	65 min
Apr 7, 8:56 AM CDT	Special Marine Warning	MOB		94 min
Apr 7, 9:29 AM CDT	Special Marine Warning	MOB		91 min
Apr 7, 10:45 AM CDT	Special Marine Warning	MOB		60 min
Apr 7, 12:26 PM CDT	River Flood Warning	MOB	Escambia	6 days
Apr 7, 9:47 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	28 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2014 Severe Thunderstorm Warnings in Florida, 2014 Every severe thunderstorm warning in 2014

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.