Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 46, NWS Mobile, AL

August 30, 2017Stone County, Mississippi

NWS Mobile, AL issued this tornado warning at Aug 30, 2017, 10:26 AM CDT for Stone County, Mississippi. 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: Aug 30, 2017, 10:26 AM CDT (15:26 UTC)
Expired: Aug 30, 2017, 10:45 AM CDT
In force: 19 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Stone County, MS

The radar

The Mobile radar (KMOB), 102 km from the middle of the area, began a volume at 15:29 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
Aug 30, 10:22 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 3.4 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: 1853 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 550 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 270 m²/s²
0-3 km storm-relative helicity: 310 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 13.7

Open this sounding in Storm Lab

The text

As transmitted.

571 
WFUS54 KMOB 301526
TORMOB
MSC131-301545-
/O.NEW.KMOB.TO.W.0046.170830T1526Z-170830T1545Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
1026 AM CDT WED AUG 30 2017

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Northwestern Stone County in southeastern Mississippi...

* Until 1045 AM CDT
    
* At 1026 AM CDT, a severe thunderstorm capable of producing a
  tornado was located 11 miles east of Poplarville, moving north 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
  northwestern Stone 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.

&&

LAT...LON 3091 8934 3091 8918 3078 8925 3080 8934
TIME...MOT...LOC 1526Z 192DEG 29KT 3084 8934 

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

$$

Butts

2 follow-up statements

128 
WWUS54 KMOB 301536
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1036 AM CDT WED AUG 30 2017

MSC131-301545-
/O.CON.KMOB.TO.W.0046.000000T0000Z-170830T1545Z/
Stone MS-
1036 AM CDT WED AUG 30 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR
NORTHWESTERN STONE COUNTY...
    
At 1036 AM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles southwest of Maxie, or 11 miles west of Wiggins,
moving north 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
northwestern Stone 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 3091 8934 3091 8918 3086 8923 3086 8934
TIME...MOT...LOC 1536Z 192DEG 29KT 3092 8932 

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

$$

Butts

477 
WWUS54 KMOB 301544
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1044 AM CDT WED AUG 30 2017

MSC131-301554-
/O.EXP.KMOB.TO.W.0046.000000T0000Z-170830T1545Z/
Stone MS-
1044 AM CDT WED AUG 30 2017

...THE TORNADO WARNING FOR NORTHWESTERN STONE COUNTY WILL EXPIRE AT
1045 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 600 PM CDT for southeastern
Mississippi.

Additional statements will be issue as conditions warrant.

LAT...LON 3091 8934 3091 8918 3086 8923 3086 8934
TIME...MOT...LOC 1544Z 192DEG 29KT 3098 8931 

$$

Butts

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 11:34 AM CDT	Tornado Warning	MOB	George	26 min
Aug 30, 11:49 AM CDT	Tornado Warning	MOB	Perry	41 min
Aug 30, 11:59 AM CDT	Tornado Warning	MOB	George, Greene	46 min
Aug 30, 12:33 PM CDT	Severe Thunderstorm Warning	MOB	George	42 min
Aug 30, 12:59 PM CDT	Tornado Warning	MOB	Greene	22 min
Aug 30, 1:06 PM CDT	Severe Thunderstorm Warning	MOB	Greene	39 min
Aug 30, 1:10 PM CDT	Special Weather Statement	MOB	Perry, Stone	50 min
Aug 30, 1:20 PM CDT	Severe Thunderstorm Warning	MOB	Perry, Stone	40 min
Aug 30, 2:04 PM CDT	Special Weather Statement	MOB	Greene, Wayne	56 min
Aug 30, 5:49 PM CDT	Special Weather Statement	MOB	George	41 min
Aug 30, 6:41 PM CDT	Special Weather Statement	MOB	Greene	49 min
Aug 30, 6:51 PM CDT	Tornado Warning	MOB	Greene	39 min

Nearby

Tornado Warnings in Mississippi, 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.