Alert archive / Alabama / Special Weather Statements in 2016

Special Weather Statement, NWS Mobile, AL

November 28, 2016Choctaw County, Alabama

NWS Mobile, AL issued this special weather statement at Nov 28, 2016, 10:21 PM CST 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
Nov 28, 2016, 10:21 PM CST (04:21 UTC)
Expired
Nov 28, 2016, 10:45 PM CST
In force
24 min
Issued by
NWS Mobile, AL

County Choctaw County, AL

The radar

The Birmingham radar (KBMX), 165 km from the middle of the area, began a volume at 04:22 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 00:00Z, 4.4 hours before the alert went out and 188 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, Jackson, MS at 00:00Z on 2016-11-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2016-11-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 254 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
254 m²/s²
0-3 km storm-relative helicity
449 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted.

803 
WWUS84 KMOB 290421
SPSMOB

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1021 PM CST MON NOV 28 2016
 
ALZ051-290445-
CHOCTAW AL-
1021 PM CST MON NOV 28 2016

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHERN CHOCTAW COUNTY UNTIL 1045 PM CST...

AT 1020 PM CST...THE STRONG THUNDERSTORM WAS LOCATED NEAR SNELL...OR
12 MILES NORTHEAST OF QUITMAN...MOVING EAST AT 50 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

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

LAT...LON 3231 8800 3230 8800 3228 8801 3228 8802
      3226 8801 3217 8801 3215 8802 3214 8804
      3211 8805 3209 8804 3206 8807 3207 8810
      3206 8812 3205 8812 3204 8846 3225 8843
      3231 8806
TIME...MOT...LOC 0420Z 263DEG 45KT 3214 8854 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 28, 6:53 PM CSTSpecial Weather StatementMOBChoctaw37 min
Nov 28, 10:49 PM CSTSpecial Weather StatementMOBChoctaw41 min
Nov 29, 2:26 AM CSTSpecial Weather StatementMOBWashington49 min
Nov 29, 3:03 AM CSTSpecial Weather StatementMOBMonroe42 min

Nearby

Special Weather Statements in Alabama, 2016Every 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.