Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 44, NWS Mobile, AL

June 29, 2017Mobile County, Alabama

NWS Mobile, AL issued this tornado warning at Jun 29, 2017, 11:32 PM CDT for Mobile County, Alabama. It was in force for 28 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: Jun 29, 2017, 11:32 PM CDT (04:32 UTC)
Expired: Jun 30, 2017, 12:00 AM CDT
In force: 28 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Mobile County, AL

The radar

The Mobile radar (KMOB), 32 km from the middle of the area, began a volume at 04:35 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.5 hours before the alert went out and 137 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: 1614 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 777 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

023 
WFUS54 KMOB 300432
TORMOB
ALC097-300500-
/O.NEW.KMOB.TO.W.0044.170630T0432Z-170630T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
1132 PM CDT THU JUN 29 2017

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Southwestern Mobile County in southwestern Alabama...

* Until midnight CDT
    
* At 1132 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Coden, or near Bayou La Batre, moving
  northeast at 10 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Expect damage to mobile homes, roofs, and vehicles. 

* This dangerous storm will be near...
  Bayou La Batre around 1155 PM CDT. 
  Grand Bay around 1200 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3035 8829 3036 8834 3048 8833 3044 8818
TIME...MOT...LOC 0432Z 206DEG 9KT 3037 8831 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

1 follow-up statement

305 
WWUS54 KMOB 300456
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1156 PM CDT THU JUN 29 2017

ALC097-300506-
/O.EXP.KMOB.TO.W.0044.000000T0000Z-170630T0500Z/
Mobile AL-
1156 PM CDT THU JUN 29 2017

...THE TORNADO WARNING FOR SOUTHWESTERN MOBILE COUNTY WILL EXPIRE AT
MIDNIGHT CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.  However gusty winds
and heavy rain are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mobile.

LAT...LON 3035 8829 3036 8834 3048 8833 3044 8818
TIME...MOT...LOC 0456Z 204DEG 8KT 3041 8829 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:21 PM CDT	Special Weather Statement	MOB	Conecuh, Covington	39 min
Jun 29, 8:09 PM CDT	Special Weather Statement	MOB	Covington, Crenshaw	66 min
Jun 29, 11:08 PM CDT	Special Marine Warning	MOB		37 min
Jun 30, 12:03 AM CDT	Special Weather Statement	MOB	Mobile	57 min
Jun 30, 12:45 AM CDT	Flash Flood Warning	MOB	Mobile	4 hr
Jun 30, 5:28 AM CDT	River Flood Warning	MOB	Covington, Escambia	35 hr
Jun 30, 1:15 PM CDT	Special Weather Statement	MOB	Covington	45 min
Jun 30, 3:21 PM CDT	Special Weather Statement	MOB	Washington	24 min
Jun 30, 3:30 PM CDT	Special Weather Statement	MOB	Monroe	30 min
Jun 30, 5:25 PM CDT	Special Weather Statement	MOB	Choctaw, Clarke	65 min
Jun 30, 5:39 PM CDT	Special Weather Statement	MOB	Conecuh	36 min
Jun 30, 6:30 PM CDT	Areal Flood Advisory	MOB	Clarke, Washington	2 hr

Nearby

Tornado Warnings in Alabama, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.