Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

May 23, 2017Conecuh County, Escambia County, Alabama

NWS Mobile, AL issued this special weather statement at May 23, 2017, 4:36 PM CDT for Conecuh County, Escambia County, Alabama. It was in force for 54 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: May 23, 2017, 4:36 PM CDT (21:36 UTC)
Expired: May 23, 2017, 5:30 PM CDT
In force: 54 min
Issued by: NWS Mobile, AL

Counties Conecuh County, AL, Escambia County, AL

The radar

The Mobile radar (KMOB), 94 km from the middle of the area, began a volume at 21:37 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 9.6 hours before the alert went out and 110 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: 1379 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 637 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

As transmitted.

844 
WWUS84 KMOB 232136
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
436 PM CDT TUE MAY 23 2017
 
ALZ055-056-059-060-262-232230-
Baldwin Inland AL-Monroe AL-Conecuh AL-Covington AL-Escambia AL-
436 PM CDT TUE MAY 23 2017

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHERN MONROE...NORTH CENTRAL BALDWIN...ESCAMBIA...CONECUH AND WEST
CENTRAL COVINGTON COUNTIES UNTIL 530 PM CDT...

At 435 PM CDT, the strong thunderstorm was located near Poarch Creek
Reservation, or 9 miles northwest of Atmore, moving northeast at 45
mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Atmore, Brewton, Evergreen, McCullough, Castleberry, I65 And US 84,
I65 And CR 1, I65 And AL 113, I65 And AL 21 and Poarch Creek
Reservation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3100 8754 3100 8760 3098 8759 3097 8764
      3113 8776 3156 8687 3124 8661
TIME...MOT...LOC 2135Z 240DEG 38KT 3109 8764 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 8:15 AM CDT	Severe Thunderstorm Warning	MOB	Covington	45 min
May 23, 8:34 AM CDT	Special Weather Statement	MOB	Mobile	41 min
May 23, 8:35 AM CDT	Tornado Warning	MOB	Covington	19 min
May 23, 9:04 AM CDT	Special Weather Statement	MOB	Covington	41 min
May 23, 9:45 AM CDT	Special Weather Statement	MOB	Baldwin	45 min
May 23, 9:53 AM CDT	Special Weather Statement	MOB	Covington	37 min
May 23, 10:20 AM CDT	Special Marine Warning	MOB		55 min
May 23, 10:30 AM CDT	Areal Flood Advisory	MOB	Mobile	3 hr
May 23, 10:38 AM CDT	Special Weather Statement	MOB	Baldwin	52 min
May 23, 3:54 PM CDT	Special Weather Statement	MOB	Escambia	51 min
May 23, 5:00 PM CDT	Areal Flood Advisory	MOB	Conecuh, Escambia	2 hr
May 23, 5:37 PM CDT	Special Weather Statement	MOB	Conecuh	38 min
May 23, 5:45 PM CDT	Special Weather Statement	MOB	Conecuh, Covington, Escambia	60 min
May 23, 6:19 PM CDT	Flash Flood Warning	MOB	Baldwin, Escambia	6 hr
May 23, 6:48 PM CDT	Special Weather Statement	MOB	Covington, Escambia	57 min
May 23, 6:52 PM CDT	Areal Flood Advisory	MOB	Conecuh, Escambia	113 min
May 23, 11:19 AM CDT	Special Weather Statement	MOB	Santa Rosa	56 min
May 23, 3:46 AM CDT	Areal Flood Advisory	MOB	Perry	3 hr
May 23, 6:24 AM CDT	Special Weather Statement	MOB	Perry	36 min
May 23, 6:59 AM CDT	Special Weather Statement	MOB	Greene	31 min
May 23, 7:17 AM CDT	Areal Flood Advisory	MOB	George, Greene, Perry, Stone	3 hr

Nearby

Special Weather Statements in Alabama, 2017 Every special weather statement in 2017

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.