Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Mobile, AL

May 25, 2018Choctaw County, Alabama

NWS Mobile, AL issued this special weather statement at May 25, 2018, 7:21 PM CDT for Choctaw 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
May 25, 2018, 7:21 PM CDT (00:21 UTC)
Expired
May 25, 2018, 7:45 PM CDT
In force
24 min
Issued by
NWS Mobile, AL

County Choctaw County, AL

The radar

The Birmingham radar (KBMX), 168 km from the middle of the area, began a volume at 00:20 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 00:00Z, 0.4 hours before the alert went out and 167 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2018-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 428 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2018-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
428 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
882 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
-30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

794 
WWUS84 KMOB 260021
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
721 PM CDT FRI MAY 25 2018
 
ALZ051-260045-
Choctaw AL-
721 PM CDT FRI MAY 25 2018

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHWESTERN CHOCTAW COUNTY UNTIL 745 PM CDT...

At 721 PM CDT, the strong thunderstorm was located 5 miles south of
Kinterbish, or 12 miles north of Butler, moving north at 20 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Pennington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3231 8803 3218 8805 3218 8844 3231 8842
TIME...MOT...LOC 0021Z 185DEG 17KT 3226 8826 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 10:13 AM CDTSpecial Marine WarningMOB62 min
May 26, 11:42 AM CDTSpecial Marine WarningMOB46 min
May 26, 12:15 PM CDTHigh Surf WarningMOBBaldwin52 hr
May 26, 1:58 PM CDTSpecial Marine WarningMOB47 min
May 26, 4:04 PM CDTTropical Storm WarningMOBBaldwin, Covington, Crenshaw, Escambia, Mobile54 hr
May 26, 5:02 PM CDTAreal Flood AdvisoryMOBWashington3 hr

Nearby

Special Weather Statements in Alabama, 2018Every 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.