Alert archive / Alabama / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 76, NWS Mobile, AL

February 7, 2017Choctaw County, Washington County, Alabama; Wayne County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Feb 7, 2017, 10:16 AM CST for Choctaw County, Washington County, Alabama; Wayne County, Mississippi. It was in force for 59 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: Feb 7, 2017, 10:16 AM CST (16:16 UTC)
Expired: Feb 7, 2017, 11:15 AM CST
In force: 59 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Choctaw County, AL, Washington County, AL, Wayne County, MS

The radar

The Mobile radar (KMOB), 123 km from the middle of the area, began a volume at 16:20 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
Feb 7, 7:54 AM CST	Tornado Watch	SPC	11 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.3 hours before the alert went out and 184 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: 442 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 583 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 231 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

866 
WUUS54 KMOB 071616
SVRMOB
ALC023-129-MSC153-071715-
/O.NEW.KMOB.SV.W.0076.170207T1616Z-170207T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1016 AM CST TUE FEB 7 2017

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southwestern Choctaw County in southwestern Alabama...
  Northwestern Washington County in southwestern Alabama...
  Wayne County in southeastern Mississippi...

* Until 1115 AM CST

* At 1015 AM CST, clusters of severe thunderstorms were located over 
  Wayne County. One cluster was located 12 miles southeast of 
  Waynesboro. Another line of severe thunderstorms was located from 
  Gretna to Hollis Creek. Movement was east at 50 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Waynesboro, Chatom, Saint Stephens, Clara, Millry, State Line,
  Buckatunna, Silas, Gilbertown and Toxey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.

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

&&

A tornado watch remains in effect until 200 PM CST for southeastern
Mississippi.

LAT...LON 3201 8812 3196 8810 3195 8812 3194 8810
      3191 8809 3190 8813 3181 8818 3175 8814
      3176 8811 3174 8809 3160 8808 3158 8804
      3145 8802 3143 8845 3143 8894 3184 8873
      3189 8848 3191 8847
TIME...MOT...LOC 1615Z 253DEG 43KT 3155 8849 

HAIL...1.00IN
WIND...60MPH
 
$$

Butts

3 follow-up statements

714 
WWUS54 KMOB 071631
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1031 AM CST TUE FEB 7 2017

ALC023-129-MSC153-071715-
/O.CON.KMOB.SV.W.0076.000000T0000Z-170207T1715Z/
Choctaw AL-Washington AL-Wayne MS-
1031 AM CST TUE FEB 7 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM CST
FOR SOUTHWESTERN CHOCTAW...NORTHWESTERN WASHINGTON AND EASTERN WAYNE
COUNTIES...

At 1031 AM CST, severe thunderstorms were located along a line
extending from near Toxey to near Millry to 11 miles south of Clara,
moving east at 55 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Waynesboro, Chatom, Saint Stephens, Clara, Millry, State Line,
Buckatunna, Silas, Gilbertown and Toxey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

Additional statements will be issued as conditions warrant.

&&

A tornado watch remains in effect until 200 PM CST for southeastern
Mississippi.

LAT...LON 3201 8812 3196 8810 3195 8812 3194 8810
      3191 8809 3190 8813 3181 8818 3175 8814
      3176 8811 3174 8809 3160 8808 3158 8804
      3145 8802 3143 8845 3144 8883 3174 8862
      3189 8848 3191 8847
TIME...MOT...LOC 1631Z 254DEG 48KT 3193 8827 3160 8841 3141 8869 

HAIL...1.00IN
WIND...60MPH
 
$$

Butts

257 
WWUS54 KMOB 071641
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1041 AM CST TUE FEB 7 2017

ALC023-129-MSC153-071715-
/O.CON.KMOB.SV.W.0076.000000T0000Z-170207T1715Z/
Choctaw AL-Washington AL-Wayne MS-
1041 AM CST TUE FEB 7 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM CST
FOR SOUTHWESTERN CHOCTAW...NORTHWESTERN WASHINGTON AND SOUTHEASTERN
WAYNE COUNTIES...

At 1041 AM CST, severe thunderstorms were located along a line
extending from 8 miles southwest of Putnam to Millry to near State
Line, moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Chatom, Saint Stephens, Millry, State Line, Buckatunna, Silas,
Gilbertown and Toxey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

Additional statements will be issued as conditions warrant.

&&

A tornado watch remains in effect until 200 PM CST for southeastern
Mississippi.

LAT...LON 3201 8812 3196 8810 3195 8812 3194 8810
      3191 8809 3190 8813 3181 8818 3175 8814
      3176 8811 3174 8809 3160 8808 3158 8804
      3145 8802 3143 8845 3143 8864 3174 8846
      3197 8827
TIME...MOT...LOC 1641Z 253DEG 43KT 3196 8815 3163 8829 3144 8858 

HAIL...1.00IN
WIND...60MPH
 
$$

Butts

322 
WWUS54 KMOB 071701
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1101 AM CST TUE FEB 7 2017

MSC153-071711-
/O.CAN.KMOB.SV.W.0076.000000T0000Z-170207T1715Z/
Wayne MS-
1101 AM CST TUE FEB 7 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WAYNE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 200 PM CST for southeastern
Mississippi.

LAT...LON 3175 8814 3176 8811 3174 8809 3160 8808
      3158 8804 3145 8802 3143 8845 3153 8845
      3172 8831 3177 8825 3178 8819
TIME...MOT...LOC 1701Z 253DEG 43KT 3202 8791 3169 8805 3150 8834 

$$

ALC023-129-071715-
/O.CON.KMOB.SV.W.0076.000000T0000Z-170207T1715Z/
Choctaw AL-Washington AL-
1101 AM CST TUE FEB 7 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM CST
FOR SOUTH CENTRAL CHOCTAW AND NORTHWESTERN WASHINGTON COUNTIES...

At 1101 AM CST, severe thunderstorms were located along a line
extending from near Sweet Water to near Coffeeville to near Chatom,
moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Chatom, Saint Stephens and Millry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

&&

A tornado watch remains in effect until 200 PM CST for southeastern
Mississippi.

LAT...LON 3175 8814 3176 8811 3174 8809 3160 8808
      3158 8804 3145 8802 3143 8845 3153 8845
      3172 8831 3177 8825 3178 8819
TIME...MOT...LOC 1701Z 253DEG 43KT 3202 8791 3169 8805 3150 8834 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 7, 5:58 AM CST	Rip Current Statement	MOB	Baldwin, Mobile	42 hr
Feb 7, 10:29 AM CST	Special Weather Statement	MOB	Clarke	46 min
Feb 7, 10:47 AM CST	Special Weather Statement	MOB	Mobile	28 min
Feb 7, 10:57 AM CST	Special Marine Warning	MOB		33 min
Feb 7, 11:17 AM CST	Special Weather Statement	MOB	Clarke, Washington	43 min
Feb 7, 11:33 AM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Washington, Wilcox	42 min
Feb 7, 12:06 PM CST	Special Weather Statement	MOB	Escambia	39 min
Feb 7, 12:12 PM CST	Special Weather Statement	MOB	Conecuh, Monroe	33 min
Feb 7, 12:34 PM CST	Special Marine Warning	MOB		41 min
Feb 7, 12:42 PM CST	Special Marine Warning	MOB		63 min
Feb 7, 12:49 PM CST	Special Weather Statement	MOB	Butler, Crenshaw	41 min
Feb 7, 1:00 PM CST	Special Weather Statement	MOB	Baldwin, Mobile	30 min
Feb 7, 1:06 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	39 min
Feb 7, 1:11 PM CST	Severe Thunderstorm Warning	MOB	Mobile	49 min
Feb 7, 1:21 PM CST	Areal Flood Advisory	MOB	Mobile	3 hr
Feb 7, 1:27 PM CST	Special Weather Statement	MOB	Baldwin	48 min
Feb 7, 1:44 PM CST	Special Marine Warning	MOB		46 min
Feb 7, 1:46 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	44 min
Feb 7, 1:49 PM CST	Special Marine Warning	MOB		56 min
Feb 7, 1:52 PM CST	Special Weather Statement	MOB	Conecuh	38 min
Feb 7, 2:02 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	58 min
Feb 7, 2:20 PM CST	Special Weather Statement	MOB	Butler, Conecuh, Crenshaw	40 min
Feb 7, 2:26 PM CST	Special Weather Statement	MOB	Covington, Escambia	49 min
Feb 7, 2:30 PM CST	Special Marine Warning	MOB		45 min
Feb 7, 2:32 PM CST	Special Marine Warning	MOB		58 min
Feb 7, 2:33 PM CST	Special Marine Warning	MOB		42 min
Feb 7, 2:45 PM CST	Special Marine Warning	MOB		60 min
Feb 7, 2:49 PM CST	Small Craft Advisory	MOB		9 hr
Feb 7, 2:57 PM CST	Areal Flood Advisory	MOB	Baldwin, Mobile	3 hr
Feb 7, 2:58 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	62 min
Feb 7, 3:01 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	59 min
Feb 7, 3:10 PM CST	Special Weather Statement	MOB	Covington	35 min
Feb 7, 3:14 PM CST	Special Marine Warning	MOB		61 min
Feb 7, 3:27 PM CST	Special Marine Warning	MOB		63 min
Feb 7, 3:40 PM CST	Special Marine Warning	MOB		65 min
Feb 7, 3:59 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	46 min
Feb 7, 4:04 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	41 min
Feb 7, 4:14 PM CST	Special Marine Warning	MOB		61 min
Feb 7, 4:25 PM CST	Special Marine Warning	MOB		65 min
Feb 7, 4:44 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	35 min
Feb 7, 4:48 PM CST	Special Marine Warning	MOB		27 min
Feb 7, 4:49 PM CST	Special Weather Statement	MOB	Wilcox	41 min
Feb 7, 5:02 PM CST	Special Weather Statement	MOB	Conecuh	43 min
Feb 7, 5:12 PM CST	Special Marine Warning	MOB		63 min
Feb 7, 9:02 AM CST	Special Weather Statement	MOB	Wayne	43 min
Feb 7, 9:44 AM CST	Special Weather Statement	MOB	Greene, Perry, Wayne	46 min
Feb 7, 11:43 AM CST	Special Weather Statement	MOB	Perry	32 min
Feb 7, 12:26 PM CST	Special Weather Statement	MOB	George	49 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2017 Severe Thunderstorm Warnings in Mississippi, 2017 Every severe thunderstorm warning 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.