Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 41, NWS Mobile, AL

June 21, 2017Covington County, Alabama

NWS Mobile, AL issued this tornado warning at Jun 21, 2017, 8:51 PM CDT for Covington 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: Jun 21, 2017, 8:51 PM CDT (01:51 UTC)
Expired: Jun 21, 2017, 9:15 PM CDT
In force: 24 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Covington County, AL

The radar

The Eglin Afb radar (KEVX), 98 km from the middle of the area, began a volume at 01:52 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
Jun 21, 6:45 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.9 hours before the alert went out and 222 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: 55 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 682 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 196 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

110 
WFUS54 KMOB 220151
TORMOB
ALC039-220215-
/O.NEW.KMOB.TO.W.0041.170622T0151Z-170622T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
851 PM CDT WED JUN 21 2017

The National Weather Service in Mobile has issued a

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

* Until 915 PM CDT
    
* At 850 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles northwest of Laurel Hill, or 15 miles west of
  Florala, moving north at 30 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
  southwestern Covington County and west of the city of Andalusia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3099 8669 3100 8669 3100 8670 3135 8670
      3135 8669 3137 8667 3139 8667 3141 8650
      3099 8647
TIME...MOT...LOC 0150Z 178DEG 25KT 3104 8658 

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

$$

Butts

3 follow-up statements

249 
WWUS54 KMOB 220203
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
903 PM CDT WED JUN 21 2017

ALC039-220215-
/O.CON.KMOB.TO.W.0041.000000T0000Z-170622T0215Z/
Covington AL-
903 PM CDT WED JUN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
SOUTHWESTERN COVINGTON COUNTY...
    
At 902 PM CDT, a severe thunderstorm capable of producing a tornado
was located 12 miles northwest of Laurel Hill, or 14 miles southwest
of Andalusia, moving north at 25 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. 

Locations impacted include...
Andalusia and River Falls. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Additional statements will be issued as conditions warrant.

&&

LAT...LON 3102 8670 3135 8670 3135 8669 3137 8667
      3139 8667 3141 8650 3104 8650
TIME...MOT...LOC 0202Z 178DEG 23KT 3112 8658 

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

$$

Butts

688 
WWUS54 KMOB 220204 CCA
SVSMOB

Severe Weather Statement...CORRECTED 
National Weather Service Mobile AL 
904 PM CDT WED JUN 21 2017

ALC039-220215-
/O.CON.KMOB.TO.W.0041.000000T0000Z-170622T0215Z/
Covington AL-
904 PM CDT WED JUN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
SOUTHWESTERN COVINGTON COUNTY...
    
At 902 PM CDT, a severe thunderstorm capable of producing a tornado
was located 12 miles northwest of Laurel Hill, or 14 miles southwest
of Andalusia, moving north at 25 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. 

Locations impacted include...
River Falls. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Additional statements will be issued as conditions warrant.

&&

LAT...LON 3102 8670 3135 8670 3135 8669 3137 8667
      3139 8667 3141 8650 3104 8650
TIME...MOT...LOC 0202Z 178DEG 23KT 3112 8658 

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

$$

Butts

...CORRECTED IMPACTED LOCATIONS... DB

791 
WWUS54 KMOB 220210
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
910 PM CDT WED JUN 21 2017

ALC039-220219-
/O.EXP.KMOB.TO.W.0041.000000T0000Z-170622T0215Z/
Covington AL-
910 PM CDT WED JUN 21 2017

...THE TORNADO WARNING FOR SOUTHWESTERN COVINGTON COUNTY WILL EXPIRE
AT 915 PM CDT...
                
The storm which prompted the warning has weakened, and no longer 
appears capable of producing a tornado. Therefore, the warning will 
be allowed to expire at 915 PM.

A tornado watch remains in effect until 300 AM CDT for south central
Alabama.

Additional statements will be issued as conditions warrant.

LAT...LON 3102 8670 3135 8670 3135 8669 3137 8667
      3139 8667 3141 8650 3104 8650
TIME...MOT...LOC 0209Z 178DEG 25KT 3116 8658 

$$

Butts

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 7:03 PM CDT	Special Weather Statement	MOB	Conecuh, Covington, Escambia, Monroe	57 min
Jun 21, 7:16 PM CDT	Tornado Warning Tornado observed	MOB	Covington, Crenshaw	19 min
Jun 21, 7:41 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	39 min
Jun 21, 9:14 PM CDT	River Flood Warning	MOB	Baldwin, Mobile	4 days
Jun 21, 9:14 PM CDT	River Flood Warning	MOB	Choctaw, Clarke, Washington	10 days
Jun 21, 9:14 PM CDT	River Flood Warning	MOB	Choctaw, Clarke, Washington	14 days
Jun 21, 10:36 PM CDT	Flash Flood Warning	MOB	Butler, Covington, Crenshaw	6 hr
Jun 22, 12:33 AM CDT	Special Marine Warning	MOB		57 min
Jun 22, 1:14 AM CDT	Tornado Warning	MOB	Covington	46 min
Jun 22, 1:25 AM CDT	Special Marine Warning	MOB		65 min
Jun 22, 1:27 AM CDT	Special Marine Warning	MOB		33 min
Jun 22, 1:44 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin	41 min
Jun 22, 2:24 AM CDT	Flash Flood Warning	MOB	Covington, Escambia	6 hr
Jun 22, 3:28 AM CDT	Special Marine Warning	MOB		32 min
Jun 22, 4:33 AM CDT	Flash Flood Warning	MOB	Butler, Conecuh, Covington, Crenshaw	6 hr
Jun 22, 5:17 AM CDT	Special Weather Statement	MOB	Crenshaw	28 min
Jun 22, 7:40 AM CDT	River Flood Warning	MOB	Baldwin	21 days
Jun 22, 8:03 AM CDT	Flash Flood Warning	MOB	Choctaw, Washington	6 hr
Jun 22, 9:39 AM CDT	Special Marine Warning	MOB		96 min
Jun 22, 10:14 AM CDT	Flash Flood Warning	MOB	Choctaw, Clarke, Washington, Wilcox	6 hr
Jun 22, 10:19 AM CDT	Special Marine Warning	MOB		116 min
Jun 22, 10:48 AM CDT	Special Weather Statement	MOB	Mobile	27 min
Jun 22, 10:51 AM CDT	Flash Flood Warning	MOB	Baldwin, Butler, Clarke, Conecuh, Covington, Escambia and 4 more	6 hr
Jun 22, 11:05 AM CDT	Special Weather Statement	MOB	Mobile	40 min
Jun 22, 11:16 AM CDT	Special Marine Warning	MOB		89 min
Jun 22, 12:12 PM CDT	Special Marine Warning	MOB		93 min
Jun 22, 1:44 PM CDT	Flash Flood Warning	MOB	Butler, Crenshaw	6 hr
Jun 22, 2:15 PM CDT	Coastal Flood Advisory	MOB	Baldwin, Mobile	15 hr
Jun 22, 3:56 PM CDT	Special Marine Warning	MOB		64 min
Jun 22, 5:57 PM CDT	Special Weather Statement	MOB	Choctaw, Washington	48 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.