Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Mobile, AL

November 7, 2018Choctaw County, Alabama

NWS Mobile, AL issued this special weather statement at Nov 7, 2018, 10:09 AM CST for Choctaw County, Alabama. It was in force for 66 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: Nov 7, 2018, 10:09 AM CST (16:09 UTC)
Expired: Nov 7, 2018, 11:15 AM CST
In force: 66 min
Issued by: NWS Mobile, AL

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 157 km from the middle of the area, began a volume at 16:10 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

Jackson, MS (KJAN), launched 12:00Z, 4.2 hours before the alert went out and 184 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: 70 J/kg
Mixed-layer CIN: -195 J/kg
Mixed-layer LCL: 622 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this special weather statement went out at Nov 7, 9:43 AM CST, 26 minutes earlier.

Area forecast discussion, Nov 7, 9:43 AM CST, 26 minutes before

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Hazardous weather outlook, Nov 7, 6:13 AM CST, 3 hours 56 minutes before

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In the hours before

Special weather statement, Nov 7, 10:09 AM CST, 0 minutes before

Special Weather Statement
National Weather Service Mobile AL
1009 AM CST WED NOV 7 2018

ALZ051-071715-
Choctaw AL-
1009 AM CST WED NOV 7 2018

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...CENTRAL
CHOCTAW COUNTY UNTIL 1115 AM CST...

At 1008 AM CST, the strong thunderstorm was located over Crandall, or
12 miles east of Quitman, moving northeast at 30 mph.

Nickel size hail and winds gusts of 40 mph will be possible with
this storm.

Locations impacted include...
Butler and Lisman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3213 8804 3211 8805 3209 8804 3206 8807
      3207 8810 3206 8812 3201 8812 3188 8847
      3213 8844 3229 8814
TIME...MOT...LOC 1608Z 242DEG 26KT 3198 8851

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 7, 12:43 AM CST	Dense Fog Advisory	MOB	Baldwin, Butler, Conecuh, Covington, Crenshaw, Escambia and 1 more	8 hr
Nov 7, 11:04 AM CST	Special Weather Statement	MOB	Marengo	41 min
Nov 7, 11:45 AM CST	Special Weather Statement	MOB	Choctaw	45 min
Nov 7, 1:57 PM CST	Special Weather Statement	MOB	Stone	48 min
Nov 7, 2:07 PM CST	Special Weather Statement	MOB	Stone	38 min
Nov 7, 2:08 PM CST	Special Weather Statement	MOB	Stone	52 min
Nov 7, 2:37 PM CST	Special Weather Statement	MOB	George, Stone	38 min

Nearby

Special Weather Statements in Alabama, 2018 Every special weather statement in 2018

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.