Alert archive / Mississippi / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 53, NWS Mobile, AL

January 21, 2017Greene County, Wayne County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Jan 21, 2017, 9:48 PM CST for Greene County, Wayne County, Mississippi. It was in force for 42 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, 9:48 PM CST (03:48 UTC)
Expired: Jan 21, 2017, 10:30 PM CST
In force: 42 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Greene County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 87 km from the middle of the area, began a volume at 03:47 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
Jan 21, 6:51 PM CST	Tornado Watch PDS	SPC	8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.8 hours before the alert went out and 165 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: 1796 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 528 m above ground
0-6 km bulk shear: 96 kt
0-1 km storm-relative helicity: 288 m²/s²
0-3 km storm-relative helicity: 382 m²/s²
Significant tornado parameter: 4.0
Supercell composite: 16.4

Open this sounding in Storm Lab

The text

As transmitted.

087 
WUUS54 KMOB 220348
SVRMOB
MSC041-153-220430-
/O.NEW.KMOB.SV.W.0053.170122T0348Z-170122T0430Z/

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

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wayne County in southeastern Mississippi...
  Greene County in southeastern Mississippi...

* Until 1030 PM CST

* At 948 PM CST, a severe thunderstorm was located 7 miles east of
  Richton, moving northeast at 50 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...
  Leakesville, McLain, Buckatunna and State Line. 

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 3164 8846 3116 8844 3109 8884 3146 8885
TIME...MOT...LOC 0348Z 240DEG 41KT 3134 8882 

HAIL...1.25IN
WIND...60MPH
 
$$

1 follow-up statement

182 
WWUS54 KMOB 220411
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1011 PM CST SAT JAN 21 2017

MSC041-153-220430-
/O.CON.KMOB.SV.W.0053.000000T0000Z-170122T0430Z/
Wayne MS-Greene MS-
1011 PM CST SAT JAN 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CST
FOR SOUTHEASTERN WAYNE AND NORTHERN GREENE COUNTIES...

At 1011 PM CST, a severe thunderstorm was located near Buckatunna, or
15 miles south of Waynesboro, moving northeast at 45 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...
Buckatunna and State Line. 

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 3128 8844 3117 8884 3146 8885 3164 8846
TIME...MOT...LOC 0411Z 240DEG 41KT 3147 8855 

HAIL...1.25IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 6:18 PM CST	Special Weather Statement	MOB	George	57 min
Jan 21, 6:18 PM CST	Severe Thunderstorm Warning	MOB	George	42 min
Jan 21, 7:11 PM CST	Severe Thunderstorm Warning	MOB	George, Greene	34 min
Jan 21, 7:40 PM CST	Severe Thunderstorm Warning	MOB	George	28 min
Jan 21, 7:56 PM CST	Severe Thunderstorm Warning	MOB	Perry	49 min
Jan 21, 8:28 PM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	47 min
Jan 21, 8:52 PM CST	Severe Thunderstorm Warning	MOB	Perry, Wayne	38 min
Jan 21, 9:06 PM CST	Severe Thunderstorm Warning	MOB	Wayne	39 min
Jan 21, 9:25 PM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	50 min
Jan 21, 9:49 PM CST	Severe Thunderstorm Warning	MOB	George, Greene, Perry, Stone	41 min
Jan 21, 10:15 PM CST	Severe Thunderstorm Warning	MOB	Greene, Wayne	45 min
Jan 21, 10:27 PM CST	Special Weather Statement	MOB	Greene	48 min
Jan 21, 11:05 PM CST	Special Weather Statement	MOB	Wayne	40 min
Jan 21, 11:10 PM CST	Severe Thunderstorm Warning	MOB	Wayne	25 min
Jan 22, 5:23 AM CST	Wind Advisory	MOB	George, Greene, Perry, Stone, Wayne	30 hr
Jan 22, 9:20 AM CST	Severe Thunderstorm Warning	MOB	George, Greene	40 min
Jan 22, 10:08 AM CST	Special Weather Statement	MOB	George	52 min
Jan 22, 10:27 AM CST	Severe Thunderstorm Warning	MOB	George, Greene	33 min
Jan 22, 4:21 PM CST	River Flood Warning	MOB	George, Greene, Wayne	4 days

Nearby

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.