Alert archive / Alabama / Special Weather Statements in 2016

Special Weather Statement, NWS Mobile, AL

August 2, 2016Choctaw County, Alabama

NWS Mobile, AL issued this special weather statement at Aug 2, 2016, 4:55 PM CDT for Choctaw County, Alabama. 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: Aug 2, 2016, 4:55 PM CDT (21:55 UTC)
Expired: Aug 2, 2016, 5:45 PM CDT
In force: 50 min
Issued by: NWS Mobile, AL

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 160 km from the middle of the area, began a volume at 21:57 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 170 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: 680 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1101 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

170 
WWUS84 KMOB 022155
SPSMOB

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
455 PM CDT TUE AUG 2 2016
 
ALZ051-053-022245-
CLARKE AL-CHOCTAW AL-
455 PM CDT TUE AUG 2 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...CHOCTAW AND NORTHWESTERN CLARKE COUNTIES UNTIL 545 PM
CDT...

AT 455 PM CDT...THE STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM MYRTLEWOOD TO NEAR ZERO...AND MOVING SOUTH AT 25 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
BUTLER...LISMAN...PENNINGTON...GILBERTOWN AND TOXEY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH
FLOODED ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3230 8811 3229 8801 3229 8802 3226 8801
      3215 8802 3214 8804 3211 8805 3209 8804
      3206 8807 3207 8810 3206 8812 3201 8812
      3201 8809 3199 8807 3199 8783 3185 8781
      3186 8847 3231 8842
TIME...MOT...LOC 2155Z 002DEG 20KT 3224 8797 3226 8863 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 7:13 PM CDT	Special Weather Statement	MOB	Escambia	32 min
Aug 1, 7:39 PM CDT	Special Weather Statement	MOB	Escambia	51 min
Aug 1, 8:26 PM CDT	Special Weather Statement	MOB	Baldwin	34 min
Aug 1, 9:35 PM CDT	Special Weather Statement	MOB	Mobile	40 min
Aug 2, 11:01 AM CDT	Flash Flood Warning	MOB	Baldwin	3 hr
Aug 2, 12:22 PM CDT	Special Weather Statement	MOB	Mobile	38 min
Aug 2, 1:08 PM CDT	Areal Flood Advisory	MOB	Mobile	3 hr
Aug 2, 1:37 PM CDT	Special Weather Statement	MOB	Crenshaw	38 min
Aug 2, 1:53 PM CDT	Special Weather Statement	MOB	Mobile	52 min
Aug 2, 2:52 PM CDT	Special Weather Statement	MOB	Washington	38 min
Aug 2, 2:55 PM CDT	Severe Thunderstorm Warning	MOB	Mobile, Washington	35 min
Aug 2, 3:10 PM CDT	Special Weather Statement	MOB	Monroe	50 min
Aug 2, 3:27 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	33 min
Aug 2, 4:16 PM CDT	Special Weather Statement	MOB	Wilcox	44 min
Aug 2, 4:44 PM CDT	Areal Flood Advisory	MOB	Wilcox	3 hr
Aug 2, 5:43 PM CDT	Special Weather Statement	MOB	Choctaw	47 min
Aug 2, 5:55 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	35 min
Aug 2, 9:01 AM CDT	Areal Flood Advisory	MOB	Escambia	119 min
Aug 2, 10:19 AM CDT	Areal Flood Advisory	MOB	Okaloosa, Santa Rosa	3 hr
Aug 2, 11:08 AM CDT	Areal Flood Advisory	MOB	Okaloosa, Santa Rosa	3 hr
Aug 1, 7:31 PM CDT	Special Weather Statement	MOB	George	44 min
Aug 1, 8:00 PM CDT	Severe Thunderstorm Warning	MOB	Greene	30 min
Aug 1, 8:19 PM CDT	Special Weather Statement	MOB	Greene	26 min
Aug 1, 8:43 PM CDT	Special Weather Statement	MOB	Perry	47 min
Aug 2, 3:37 PM CDT	Special Weather Statement	MOB	George	38 min
Aug 2, 3:48 PM CDT	Special Weather Statement	MOB	George	42 min
Aug 2, 4:12 PM CDT	Special Weather Statement	MOB	Perry	48 min
Aug 2, 4:29 PM CDT	Special Weather Statement	MOB	Wayne	46 min
Aug 2, 6:10 PM CDT	Special Weather Statement	MOB	Wayne	50 min

Nearby

Special Weather Statements in Alabama, 2016 Every special weather statement 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.