Alert archive / Alabama / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 80, NWS Mobile, AL

July 22, 2018Clarke County, Monroe County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 22, 2018, 12:54 PM CDT for Clarke County, Monroe County, Alabama. It was in force for 36 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: Jul 22, 2018, 12:54 PM CDT (17:54 UTC)
Expired: Jul 22, 2018, 1:30 PM CDT
In force: 36 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Clarke County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 119 km from the middle of the area, began a volume at 17:58 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
Jul 22, 11:57 AM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.9 hours before the alert went out and 191 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: 342 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1340 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

405 
WUUS54 KMOB 221754
SVRMOB
ALC025-099-221900-
/O.NEW.KMOB.SV.W.0080.180722T1754Z-180722T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1254 PM CDT SUN JUL 22 2018

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  West central Monroe County in south central Alabama...
  East central Clarke County in southwestern Alabama...

* Until 200 PM CDT.

* At 1253 PM CDT, a severe thunderstorm was located over Whatley, or
  4 miles southeast of Grove Hill, moving southeast at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Grove Hill and Whatley. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3168 8783 3179 8767 3161 8744 3144 8768
TIME...MOT...LOC 1753Z 322DEG 11KT 3167 8771 

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

1 follow-up statement

286 
WWUS54 KMOB 221830
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
130 PM CDT SUN JUL 22 2018

ALC025-099-221838-
/O.CAN.KMOB.SV.W.0080.000000T0000Z-180722T1900Z/
Monroe AL-Clarke AL-
130 PM CDT SUN JUL 22 2018

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MONROE AND EAST
CENTRAL CLARKE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. Another severe 
thunderstorm warning has been issued further to the south. 

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
south central and southwestern Alabama.

LAT...LON 3168 8783 3179 8767 3161 8744 3144 8768
TIME...MOT...LOC 1824Z 322DEG 11KT 3158 8763 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 10:08 PM CDT	Special Weather Statement	MOB	Monroe	67 min
Jul 21, 10:18 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Conecuh, Monroe, Wilcox	57 min
Jul 21, 10:47 PM CDT	Special Weather Statement	MOB	Conecuh	28 min
Jul 21, 11:05 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw	40 min
Jul 21, 11:40 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Covington, Crenshaw	35 min
Jul 22, 2:25 AM CDT	Special Weather Statement	MOB	Butler, Covington	65 min
Jul 22, 3:22 AM CDT	Rip Current Statement	MOB	Baldwin, Mobile	24 hr
Jul 22, 10:50 AM CDT	Special Weather Statement	MOB	Choctaw, Wilcox	40 min
Jul 22, 11:20 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw	14 min
Jul 22, 11:33 AM CDT	Special Weather Statement	MOB	Choctaw, Clarke, Wilcox	42 min
Jul 22, 11:40 AM CDT	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	65 min
Jul 22, 12:06 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	54 min
Jul 22, 12:33 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Wilcox	23 min
Jul 22, 12:35 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington	15 min
Jul 22, 12:47 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw	41 min
Jul 22, 1:07 PM CDT	Special Weather Statement	MOB	Crenshaw	38 min
Jul 22, 1:13 PM CDT	Special Weather Statement	MOB	Monroe	62 min
Jul 22, 1:18 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Conecuh, Escambia, Monroe	18 min
Jul 22, 1:21 PM CDT	Severe Thunderstorm Warning	MOB	Covington	39 min
Jul 22, 1:25 PM CDT	Special Weather Statement	MOB	Butler, Crenshaw	80 min
Jul 22, 2:02 PM CDT	Severe Thunderstorm Warning	MOB	Covington	58 min
Jul 22, 2:17 PM CDT	Special Weather Statement	MOB	Clarke	43 min
Jul 22, 2:27 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe	37 min
Jul 22, 2:29 PM CDT	Tornado Warning	MOB	Clarke	23 min
Jul 22, 3:18 PM CDT	Special Marine Warning	MOB		57 min
Jul 22, 6:29 PM CDT	Special Marine Warning	MOB		61 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2018 Every severe thunderstorm warning 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.