Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 170, NWS Mobile, AL

July 21, 2016Escambia County, Florida; Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 21, 2016, 2:56 PM CDT for Escambia County, Florida; Baldwin County, Alabama. It was in force for 34 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: Jul 21, 2016, 2:56 PM CDT (19:56 UTC)
Expired: Jul 21, 2016, 3:30 PM CDT
In force: 34 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Baldwin County, AL, Escambia County, FL

The radar

The Mobile radar (KMOB), 75 km from the middle of the area, began a volume at 19:58 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.9 hours before the alert went out and 220 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: 1965 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 910 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

148 
WUUS54 KMOB 211956
SVRMOB
ALC003-FLC033-212030-
/O.NEW.KMOB.SV.W.0170.160721T1956Z-160721T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
256 PM CDT THU JUL 21 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL BALDWIN COUNTY IN SOUTHWESTERN ALABAMA...
  WEST CENTRAL ESCAMBIA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 330 PM CDT

* AT 255 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES
  SOUTHWEST OF MOLINO...OR 11 MILES NORTHWEST OF GONZALEZ...MOVING
  NORTHWEST AT 5 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  EAST CENTRAL BALDWIN AND WEST CENTRAL ESCAMBIA COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3067 8735 3055 8749 3065 8766 3081 8742
TIME...MOT...LOC 1955Z 141DEG 5KT 3065 8746 

HAIL...0.75IN
WIND...60MPH
 
$$

BUTTS

1 follow-up statement

688 
WWUS54 KMOB 212013
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
313 PM CDT THU JUL 21 2016

ALC003-212022-
/O.CAN.KMOB.SV.W.0170.000000T0000Z-160721T2030Z/
BALDWIN AL-
313 PM CDT THU JUL 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BALDWIN COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.

LAT...LON 3065 8740 3068 8741 3069 8744 3070 8745
      3070 8747 3072 8748 3072 8750 3073 8751
      3074 8753 3081 8742 3067 8735 3063 8739
TIME...MOT...LOC 2012Z 216DEG 11KT 3071 8742 

$$

FLC033-212030-
/O.CON.KMOB.SV.W.0170.000000T0000Z-160721T2030Z/
ESCAMBIA FL-
313 PM CDT THU JUL 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR WEST CENTRAL ESCAMBIA COUNTY...

AT 312 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MOLINO...OR 11
MILES NORTHWEST OF GONZALEZ...MOVING NORTHEAST AT 15 MPH.

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

SOURCE...RADAR INDICATED. 

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

THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF WEST
CENTRAL ESCAMBIA COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.

&&

LAT...LON 3065 8740 3068 8741 3069 8744 3070 8745
      3070 8747 3072 8748 3072 8750 3073 8751
      3074 8753 3081 8742 3067 8735 3063 8739
TIME...MOT...LOC 2012Z 216DEG 11KT 3071 8742 

HAIL...0.75IN
WIND...60MPH
 
$$

BUTTS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 3:11 PM CDT	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	49 min
Jul 21, 3:44 PM CDT	Severe Thunderstorm Warning	MOB	Santa Rosa	31 min
Jul 21, 4:59 PM CDT	Special Weather Statement	MOB	Okaloosa	46 min
Jul 21, 12:51 PM CDT	Special Weather Statement	MOB	Mobile	24 min
Jul 21, 1:13 PM CDT	Special Weather Statement	MOB	Baldwin	47 min
Jul 21, 1:46 PM CDT	Special Weather Statement	MOB	Baldwin	44 min
Jul 21, 2:24 PM CDT	Special Weather Statement	MOB	Baldwin	36 min
Jul 21, 2:25 PM CDT	Special Weather Statement	MOB	Mobile	50 min
Jul 21, 2:28 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	32 min
Jul 21, 2:51 PM CDT	Areal Flood Advisory	MOB	Mobile	54 min
Jul 21, 3:27 PM CDT	Special Weather Statement	MOB	Covington	48 min
Jul 21, 5:38 PM CDT	Severe Thunderstorm Warning	MOB	Monroe	22 min
Jul 21, 5:59 PM CDT	Special Weather Statement	MOB	Monroe	31 min
Jul 21, 6:45 PM CDT	Special Weather Statement	MOB	Wilcox	30 min

Nearby

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