Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 27, NWS Mobile, AL

May 23, 2017Covington County, Alabama

NWS Mobile, AL issued this tornado warning at May 23, 2017, 8:35 AM CDT for Covington County, Alabama. It was in force for 19 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 23, 2017, 8:35 AM CDT (13:35 UTC)
Expired: May 23, 2017, 8:54 AM CDT
In force: 19 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Covington County, AL

The radar

The Eglin Afb radar (KEVX), 75 km from the middle of the area, began a volume at 13:37 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 1.6 hours before the alert went out and 79 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: 1379 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 637 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

As transmitted.

144 
WFUS54 KMOB 231335
TORMOB
ALC039-231415-
/O.NEW.KMOB.TO.W.0027.170523T1335Z-170523T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
835 AM CDT TUE MAY 23 2017

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Southeastern Covington County in south central Alabama...

* Until 915 AM CDT
    
* At 835 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles south of Opp, moving northeast at 35 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Opp around 845 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 3106 8629 3120 8642 3138 8620 3111 8619
TIME...MOT...LOC 1335Z 231DEG 30KT 3118 8630 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Butts

2 follow-up statements

627 
WWUS54 KMOB 231343
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
843 AM CDT TUE MAY 23 2017

ALC039-231415-
/O.CON.KMOB.TO.W.0027.000000T0000Z-170523T1415Z/
Covington AL-
843 AM CDT TUE MAY 23 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR EAST
CENTRAL COVINGTON COUNTY...
    
At 843 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Opp, moving northeast at 35 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
east central Covington County.

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.

Additional statements will be issued as conditions warrant.

&&

LAT...LON 3112 8628 3130 8630 3138 8620 3115 8619
TIME...MOT...LOC 1343Z 239DEG 31KT 3121 8622 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Butts

364 
WWUS54 KMOB 231354
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
854 AM CDT TUE MAY 23 2017

ALC039-231401-
/O.CAN.KMOB.TO.W.0027.000000T0000Z-170523T1415Z/
Covington AL-
854 AM CDT TUE MAY 23 2017

...THE TORNADO WARNING FOR EAST CENTRAL COVINGTON COUNTY IS
CANCELLED...
    
The tornado threat has diminished for East Central Covington County 
as the thunderstorm which prompted the warning has moved into Coffee 
County. 

Additional statements will be issued as conditions warrant.

LAT...LON 3112 8628 3130 8630 3138 8620 3115 8619
TIME...MOT...LOC 1350Z 231DEG 30KT 3125 8616 

$$

Butts

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 8:15 AM CDT	Severe Thunderstorm Warning	MOB	Covington	45 min
May 23, 8:34 AM CDT	Special Weather Statement	MOB	Mobile	41 min
May 23, 9:04 AM CDT	Special Weather Statement	MOB	Covington	41 min
May 23, 9:45 AM CDT	Special Weather Statement	MOB	Baldwin	45 min
May 23, 9:53 AM CDT	Special Weather Statement	MOB	Covington	37 min
May 23, 10:20 AM CDT	Special Marine Warning	MOB		55 min
May 23, 10:30 AM CDT	Areal Flood Advisory	MOB	Mobile	3 hr
May 23, 10:38 AM CDT	Special Weather Statement	MOB	Baldwin	52 min
May 23, 3:54 PM CDT	Special Weather Statement	MOB	Escambia	51 min
May 23, 4:36 PM CDT	Special Weather Statement	MOB	Conecuh, Escambia	54 min
May 23, 5:00 PM CDT	Areal Flood Advisory	MOB	Conecuh, Escambia	2 hr
May 23, 5:37 PM CDT	Special Weather Statement	MOB	Conecuh	38 min
May 23, 5:45 PM CDT	Special Weather Statement	MOB	Conecuh, Covington, Escambia	60 min
May 23, 6:19 PM CDT	Flash Flood Warning	MOB	Baldwin, Escambia	6 hr
May 23, 6:48 PM CDT	Special Weather Statement	MOB	Covington, Escambia	57 min
May 23, 6:52 PM CDT	Areal Flood Advisory	MOB	Conecuh, Escambia	113 min

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.