Alert archive / Mississippi / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 56, NWS Mobile, AL

January 21, 2017Greene County, Wayne County, Mississippi; Choctaw County, Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jan 21, 2017, 10:15 PM CST for Greene County, Wayne County, Mississippi; Choctaw County, Washington County, Alabama. It was in force for 45 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
Jan 21, 2017, 10:15 PM CST (04:15 UTC)
Expired
Jan 21, 2017, 11:00 PM CST
In force
45 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Possible
Hail
1.25 in
Wind
60.0 mph

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

The radar

The Mobile radar (KMOB), 101 km from the middle of the area, began a volume at 04:15 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.

IssuedProductOfficeLasted
Jan 21, 6:51 PM CSTTornado Watch PDSSPC8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 4.3 hours before the alert went out and 206 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-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2017-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1036 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2017-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 144 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1036 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1052 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
144 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

875 
WUUS54 KMOB 220415
SVRMOB
ALC023-129-MSC041-153-220500-
/O.NEW.KMOB.SV.W.0056.170122T0415Z-170122T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1015 PM CST SAT JAN 21 2017

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  South central Choctaw County in southwestern Alabama...
  Washington County in southwestern Alabama...
  Southeastern Wayne County in southeastern Mississippi...
  Northeastern Greene County in southeastern Mississippi...

* Until 1100 PM CST

* At 1014 PM CST, a severe thunderstorm was located over State Line,
  or 14 miles west of Chatom, moving northeast at 60 mph.

  HAZARD...60 mph wind gusts and half dollar 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, Wagarville, Leroy, Tibbie, Millry,
  Buckatunna, State Line and Fruitdale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 300 AM CST for southwestern
Alabama...and southeastern Mississippi.

LAT...LON 3175 8814 3176 8811 3168 8808 3165 8809
      3162 8807 3160 8808 3159 8806 3159 8803
      3157 8802 3157 8804 3156 8802 3153 8794
      3150 8791 3145 8791 3144 8793 3142 8791
      3141 8793 3126 8854 3162 8855 3177 8816
TIME...MOT...LOC 0414Z 240DEG 53KT 3147 8850 

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...60MPH
 
$$
1 follow-up statement
425 
WWUS54 KMOB 220445
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1045 PM CST SAT JAN 21 2017

ALC023-MSC041-153-220455-
/O.CAN.KMOB.SV.W.0056.000000T0000Z-170122T0500Z/
Choctaw AL-Wayne MS-Greene MS-
1045 PM CST SAT JAN 21 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CHOCTAW...
SOUTHEASTERN WAYNE AND NORTHEASTERN GREENE COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 300 AM CST for southwestern
Alabama.

LAT...LON 3168 8808 3165 8809 3162 8807 3160 8808
      3159 8806 3159 8803 3157 8802 3157 8804
      3156 8802 3153 8794 3150 8791 3145 8791
      3144 8793 3142 8791 3129 8843 3165 8845
      3170 8833 3170 8809
TIME...MOT...LOC 0445Z 240DEG 53KT 3170 8803 

$$

ALC129-220500-
/O.CON.KMOB.SV.W.0056.000000T0000Z-170122T0500Z/
Washington AL-
1045 PM CST SAT JAN 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CST
FOR NORTHERN WASHINGTON COUNTY...

At 1045 PM CST, a severe thunderstorm was located near Coffeeville,
or 14 miles west of Grove Hill, moving northeast at 60 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, Wagarville, Leroy, Tibbie, Millry and
Fruitdale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 300 AM CST for southwestern
Alabama.

LAT...LON 3168 8808 3165 8809 3162 8807 3160 8808
      3159 8806 3159 8803 3157 8802 3157 8804
      3156 8802 3153 8794 3150 8791 3145 8791
      3144 8793 3142 8791 3129 8843 3165 8845
      3170 8833 3170 8809
TIME...MOT...LOC 0445Z 240DEG 53KT 3170 8803 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 6:18 PM CSTSpecial Weather StatementMOBGeorge57 min
Jan 21, 6:18 PM CSTSevere Thunderstorm WarningMOBGeorge42 min
Jan 21, 7:11 PM CSTSevere Thunderstorm WarningMOBGeorge, Greene34 min
Jan 21, 7:40 PM CSTSevere Thunderstorm WarningMOBGeorge28 min
Jan 21, 7:56 PM CSTSevere Thunderstorm WarningMOBPerry49 min
Jan 21, 8:28 PM CSTSevere Thunderstorm WarningMOBGreene, Perry, Wayne47 min
Jan 21, 8:52 PM CSTSevere Thunderstorm WarningMOBPerry, Wayne38 min
Jan 21, 9:06 PM CSTSevere Thunderstorm WarningMOBWayne39 min
Jan 21, 9:25 PM CSTSevere Thunderstorm WarningMOBGreene, Perry, Wayne50 min
Jan 21, 9:48 PM CSTSevere Thunderstorm WarningMOBGreene, Wayne42 min
Jan 21, 9:49 PM CSTSevere Thunderstorm WarningMOBGeorge, Greene, Perry, Stone41 min
Jan 21, 10:27 PM CSTSpecial Weather StatementMOBGreene48 min
Jan 21, 11:05 PM CSTSpecial Weather StatementMOBWayne40 min
Jan 21, 11:10 PM CSTSevere Thunderstorm WarningMOBWayne25 min
Jan 22, 5:23 AM CSTWind AdvisoryMOBGeorge, Greene, Perry, Stone, Wayne30 hr
Jan 22, 9:20 AM CSTSevere Thunderstorm WarningMOBGeorge, Greene40 min
Jan 22, 10:08 AM CSTSpecial Weather StatementMOBGeorge52 min
Jan 22, 10:27 AM CSTSevere Thunderstorm WarningMOBGeorge, Greene33 min
Jan 22, 4:21 PM CSTRiver Flood WarningMOBGeorge, Greene, Wayne4 days
Jan 21, 6:31 PM CSTSpecial Marine WarningMOB89 min
Jan 21, 6:49 PM CSTTornado WarningMOBMobile41 min
Jan 21, 6:59 PM CSTSevere Thunderstorm WarningMOBBaldwin46 min
Jan 21, 7:03 PM CSTSevere Thunderstorm WarningMOBMobile, Washington20 min
Jan 21, 7:07 PM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile38 min
Jan 21, 7:15 PM CSTSevere Thunderstorm WarningMOBBaldwin45 min
Jan 21, 7:25 PM CSTSevere Thunderstorm WarningMOBBaldwin, Conecuh, Escambia, Monroe50 min
Jan 21, 7:30 PM CSTTornado WarningMOBBaldwin, Escambia45 min
Jan 21, 7:46 PM CSTSevere Thunderstorm WarningMOBBaldwin, Escambia44 min
Jan 21, 7:51 PM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia54 min
Jan 21, 7:53 PM CSTSevere Thunderstorm WarningMOBEscambia52 min
Jan 21, 8:11 PM CSTTornado WarningMOBEscambia49 min
Jan 21, 8:15 PM CSTTornado WarningMOBEscambia30 min
Jan 21, 8:28 PM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw, Escambia62 min
Jan 21, 8:51 PM CSTAreal Flood AdvisoryMOBEscambia6 hr
Jan 21, 9:11 PM CSTTornado WarningMOBCovington34 min
Jan 21, 9:14 PM CSTSevere Thunderstorm WarningMOBConecuh, Escambia46 min
Jan 21, 9:31 PM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw44 min
Jan 21, 9:33 PM CSTSpecial Marine WarningMOB57 min
Jan 21, 9:56 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Wilcox49 min
Jan 21, 10:16 PM CSTSpecial Weather StatementMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more59 min
Jan 21, 10:19 PM CSTSevere Thunderstorm WarningMOBButler, Monroe, Wilcox41 min
Jan 21, 10:20 PM CSTSpecial Marine WarningMOB85 min
Jan 21, 10:25 PM CSTFlash Flood WarningMOBCovington6 hr
Jan 21, 11:15 PM CSTSpecial Weather StatementMOBButler, Clarke, Conecuh, Covington, Crenshaw, Monroe and 2 more75 min
Jan 21, 11:24 PM CSTSevere Thunderstorm WarningMOBClarke, Wilcox16 min
Jan 21, 11:25 PM CSTSpecial Weather StatementMOBChoctaw50 min
Jan 22, 12:35 AM CSTSpecial Marine WarningMOB115 min
Jan 22, 6:53 AM CSTSpecial Marine WarningMOB82 min
Jan 22, 7:56 AM CSTSpecial Marine WarningMOB49 min
Jan 22, 8:13 AM CSTSpecial Marine WarningMOB2 hr
Jan 22, 8:32 AM CSTSevere Thunderstorm WarningMOBBaldwin43 min
Jan 22, 8:35 AM CSTSpecial Marine WarningMOB55 min
Jan 22, 8:44 AM CSTSpecial Marine WarningMOB61 min
Jan 22, 9:10 AM CSTSevere Thunderstorm WarningMOBBaldwin50 min
Jan 22, 9:31 AM CSTSevere Thunderstorm WarningMOBBaldwin44 min
Jan 22, 9:33 AM CSTSpecial Marine WarningMOB42 min
Jan 22, 9:54 AM CSTSpecial Weather StatementMOBWashington51 min
Jan 22, 10:02 AM CSTSpecial Marine WarningMOB58 min
Jan 22, 10:04 AM CSTTornado WarningMOBCovington, Escambia41 min
Jan 22, 10:11 AM CSTSpecial Marine WarningMOB49 min
Jan 22, 10:29 AM CSTSevere Thunderstorm WarningMOBCovington, Escambia46 min
Jan 22, 10:34 AM CSTSpecial Weather StatementMOBMonroe41 min
Jan 22, 10:52 AM CSTSevere Thunderstorm WarningMOBClarke, Washington23 min
Jan 22, 10:54 AM CSTSevere Thunderstorm WarningMOBClarke, Conecuh, Monroe36 min
Jan 22, 10:58 AM CSTSpecial Marine WarningMOB47 min
Jan 22, 11:02 AM CSTSevere Thunderstorm WarningMOBCovington58 min
Jan 22, 11:03 AM CSTSpecial Weather StatementMOBBaldwin, Escambia42 min
Jan 22, 11:07 AM CSTTornado WarningMOBCovington38 min
Jan 22, 11:13 AM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Washington, Wilcox36 min
Jan 22, 11:24 AM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw, Monroe, Wilcox51 min
Jan 22, 11:39 AM CSTSpecial Marine WarningMOB66 min
Jan 22, 12:08 PM CSTSpecial Weather StatementMOBButler, Crenshaw52 min
Jan 22, 12:26 PM CSTSevere Thunderstorm WarningMOBButler, Crenshaw34 min
Jan 22, 4:15 PM CSTRiver Flood WarningMOBEscambia3 days

Nearby

Severe Thunderstorm Warnings in Mississippi, 2017Severe Thunderstorm Warnings in Alabama, 2017Every 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.