Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 176, NWS Mobile, AL

August 1, 2016Clarke County, Monroe County, Wilcox County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 1, 2016, 4:51 PM CDT for Clarke County, Monroe County, Wilcox County, Alabama. It was in force for 24 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: Aug 1, 2016, 4:51 PM CDT (21:51 UTC)
Expired: Aug 1, 2016, 5:15 PM CDT
In force: 24 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Clarke County, AL, Monroe County, AL, Wilcox County, AL

The radar

The Mobile radar (KMOB), 135 km from the middle of the area, began a volume at 21:54 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

Birmingham, AL (KBMX), launched 12:00Z, 9.9 hours before the alert went out and 175 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: 1157 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 888 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: -43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

297 
WUUS54 KMOB 012151
SVRMOB
ALC025-099-131-012215-
/O.NEW.KMOB.SV.W.0176.160801T2151Z-160801T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
451 PM CDT MON AUG 1 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHWESTERN WILCOX COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHEASTERN CLARKE COUNTY IN SOUTHWESTERN ALABAMA...

* UNTIL 515 PM CDT

* AT 451 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES EAST OF
  FULTON...OR 11 MILES NORTHEAST OF GROVE HILL...MOVING SOUTH AT 10
  MPH.

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

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  WHATLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3185 8748 3160 8744 3161 8775 3186 8769
TIME...MOT...LOC 2151Z 001DEG 9KT 3179 8759 

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

1 follow-up statement

392 
WWUS54 KMOB 012207
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
507 PM CDT MON AUG 1 2016

ALC025-099-131-012216-
/O.EXP.KMOB.SV.W.0176.000000T0000Z-160801T2215Z/
MONROE AL-WILCOX AL-CLARKE AL-
507 PM CDT MON AUG 1 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL MONROE...
SOUTHWESTERN WILCOX AND NORTHEASTERN CLARKE COUNTIES WILL EXPIRE AT
515 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3185 8748 3160 8744 3161 8775 3186 8769
TIME...MOT...LOC 2205Z 001DEG 9KT 3179 8759 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 7:46 PM CDT	Special Weather Statement	MOB	Conecuh	29 min
Aug 1, 2:05 PM CDT	Special Weather Statement	MOB	Covington	40 min
Aug 1, 3:17 PM CDT	Special Weather Statement	MOB	Choctaw	43 min
Aug 1, 3:38 PM CDT	Special Weather Statement	MOB	Choctaw	52 min
Aug 1, 3:51 PM CDT	Special Weather Statement	MOB	Clarke	39 min
Aug 1, 4:40 PM CDT	Special Weather Statement	MOB	Clarke	50 min
Aug 1, 4:41 PM CDT	Special Weather Statement	MOB	Wilcox	49 min
Aug 1, 5:09 PM CDT	Special Weather Statement	MOB	Monroe	36 min
Aug 1, 5:32 PM CDT	Special Weather Statement	MOB	Conecuh	43 min
Aug 1, 5:42 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	33 min
Aug 1, 6:09 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	36 min
Aug 1, 6:27 PM CDT	Special Weather Statement	MOB	Monroe	48 min

Nearby

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.