Alert archive / Alabama / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 2, NWS Mobile, AL

January 19, 2019Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jan 19, 2019, 10:49 AM CST for Choctaw County, Alabama. It was in force for 41 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: Jan 19, 2019, 10:49 AM CST (16:49 UTC)
Expired: Jan 19, 2019, 11:30 AM CST
In force: 41 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Choctaw County, AL

The radar

The Birmingham radar (KBMX), 158 km from the middle of the area, began a volume at 16:49 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 19, 9:43 AM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 4.8 hours before the alert went out and 158 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: 15 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 531 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 313 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

051 
WUUS54 KMOB 191649
SVRMOB
ALC023-191730-
/O.NEW.KMOB.SV.W.0002.190119T1649Z-190119T1730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1049 AM CST SAT JAN 19 2019

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Northern Choctaw County in southwestern Alabama...

* Until 1130 AM CST.

* At 1048 AM CST, a severe thunderstorm was located 6 miles south of
  Snell, or 14 miles west of Butler, moving northeast at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Butler, Lisman and Pennington. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A Tornado Watch remains in effect until 500 PM CST for southwestern
Alabama.

LAT...LON 3231 8793 3228 8793 3228 8794 3230 8794
      3230 8800 3228 8801 3228 8802 3227 8802
      3226 8801 3218 8801 3199 8846 3223 8843
      3231 8829
TIME...MOT...LOC 1648Z 240DEG 49KT 3210 8847 

HAIL...<.75IN
WIND...60MPH
 
$$

1 follow-up statement

406 
WWUS54 KMOB 191723
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1123 AM CST SAT JAN 19 2019

ALC023-191732-
/O.EXP.KMOB.SV.W.0002.000000T0000Z-190119T1730Z/
Choctaw AL-
1123 AM CST SAT JAN 19 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CHOCTAW COUNTY WILL
EXPIRE AT 1130 AM CST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Tornado Watch remains in effect until 500 PM CST for southwestern
Alabama.

LAT...LON 3231 8793 3228 8793 3228 8794 3230 8794
      3230 8800 3228 8801 3228 8802 3227 8802
      3226 8801 3218 8801 3199 8846 3223 8843
      3231 8829
TIME...MOT...LOC 1722Z 240DEG 49KT 3232 8801 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 18, 8:12 PM CST	Wind Advisory	MOB	Baldwin, Butler, Clarke, Conecuh, Covington, Crenshaw and 4 more	34 hr
Jan 19, 3:37 AM CST	Marine Dense Fog Advisory	MOB		6 hr
Jan 19, 3:44 AM CST	High Surf Advisory	MOB	Baldwin, Mobile	20 hr
Jan 19, 11:31 AM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	44 min
Jan 19, 11:47 AM CST	Special Weather Statement	MOB	Washington	43 min
Jan 19, 12:15 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Washington, Wilcox	45 min
Jan 19, 12:42 PM CST	Special Weather Statement	MOB	Washington	48 min
Jan 19, 12:58 PM CST	Special Weather Statement	MOB	Wilcox	47 min
Jan 19, 2:33 PM CST	Special Marine Warning	MOB		57 min
Jan 19, 2:34 PM CST	Special Marine Warning	MOB		56 min
Jan 19, 2:48 PM CST	Special Marine Warning	MOB		32 min
Jan 19, 3:14 PM CST	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	30 min
Jan 19, 3:28 PM CST	Special Marine Warning	MOB		32 min
Jan 19, 3:30 PM CST	Special Marine Warning	MOB		15 min
Jan 19, 4:11 PM CST	Special Marine Warning	MOB		94 min
Jan 19, 4:13 PM CST	Special Marine Warning	MOB		32 min
Jan 19, 4:40 PM CST	Special Marine Warning	MOB		35 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2019 Every severe thunderstorm warning in 2019

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.