Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 209, NWS Jackson, MS

September 25, 2011Washington County, Mississippi; Chicot County, Arkansas

NWS Jackson, MS issued this tornado warning at Sep 25, 2011, 9:00 PM CDT for Washington County, Mississippi; Chicot County, Arkansas. It was in force for 60 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: Sep 25, 2011, 9:00 PM CDT (02:00 UTC)
Expired: Sep 25, 2011, 10:00 PM CDT
In force: 60 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Chicot County, AR, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 174 km from the middle of the area, began a volume at 02:01 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
Sep 25, 3:19 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 2.0 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: 1074 J/kg
Mixed-layer CIN: -175 J/kg
Mixed-layer LCL: 1252 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 200 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

737 
WFUS54 KJAN 260200
TORJAN
ARC017-MSC151-260300-
/O.NEW.KJAN.TO.W.0209.110926T0200Z-110926T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
900 PM CDT SUN SEP 25 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN WASHINGTON COUNTY IN NORTHWEST MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...LELAND...GREENVILLE...
  NORTHEASTERN CHICOT COUNTY IN SOUTHEAST ARKANSAS...

* UNTIL 1000 PM CDT

* AT 900 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES WEST OF
  WINTERVILLE MOVING EAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  METCALFE AND TRIBBETT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTHEAST ARKANSAS AND NORTHWESTERN MISSISSIPPI.

&&

LAT...LON 3353 9121 3353 9096 3347 9076 3328 9076
      3344 9137 3354 9135 3352 9131 3352 9126
      3356 9125 3357 9123
TIME...MOT...LOC 0200Z 281DEG 28KT 3350 9121

$$

BK

2 follow-up statements

717 
WWUS54 KJAN 260228
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
928 PM CDT SUN SEP 25 2011

ARC017-MSC151-260300-
/O.CON.KJAN.TO.W.0209.000000T0000Z-110926T0300Z/
CHICOT AR-WASHINGTON MS-
928 PM CDT SUN SEP 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHERN
WASHINGTON AND NORTHEASTERN CHICOT COUNTIES...

AT 927 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
TORNADO WAS LOCATED 8 MILES NORTHWEST OF GREENVILLE MOVING SOUTHEAST 
AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WINTERVILLE...METCALFE...LELAND AND TRIBBETT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTHEAST ARKANSAS AND NORTHWESTERN MISSISSIPPI.

&&

LAT...LON 3353 9121 3353 9096 3347 9076 3328 9076
      3344 9137 3354 9135 3352 9131 3352 9126
      3356 9125 3357 9123
TIME...MOT...LOC 0227Z 288DEG 30KT 3342 9115

$$

BK

785 
WWUS54 KJAN 260247
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
947 PM CDT SUN SEP 25 2011

ARC017-260258-
/O.CAN.KJAN.TO.W.0209.000000T0000Z-110926T0300Z/
CHICOT AR-
947 PM CDT SUN SEP 25 2011

...THE TORNADO WARNING FOR NORTHEASTERN CHICOT COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTHEAST ARKANSAS AND NORTHWESTERN MISSISSIPPI.

LAT...LON 3352 9095 3347 9077 3328 9076 3337 9111
      3342 9106 3345 9106 3345 9109 3341 9110
      3338 9114 3340 9120 3342 9120 3343 9113
      3347 9112 3350 9117 3345 9117 3344 9123
      3350 9118 3353 9121
TIME...MOT...LOC 0248Z 288DEG 30KT 3336 9095

$$

MSC151-260300-
/O.CON.KJAN.TO.W.0209.000000T0000Z-110926T0300Z/
WASHINGTON MS-
947 PM CDT SUN SEP 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHERN
WASHINGTON COUNTY...

AT 948 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR GREENVILLE MOVING EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LELAND
AND TRIBBETT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTHEAST ARKANSAS AND NORTHWESTERN MISSISSIPPI.

&&

LAT...LON 3352 9095 3347 9077 3328 9076 3337 9111
      3342 9106 3345 9106 3345 9109 3341 9110
      3338 9114 3340 9120 3342 9120 3343 9113
      3347 9112 3350 9117 3345 9117 3344 9123
      3350 9118 3353 9121
TIME...MOT...LOC 0248Z 288DEG 30KT 3336 9095

$$

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 25, 7:23 PM CDT	Tornado Warning	JAN	Bolivar, Sunflower	21 min
Sep 25, 7:33 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	57 min
Sep 25, 7:45 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	60 min
Sep 25, 7:57 PM CDT	Tornado Warning	JAN	Bolivar	48 min
Sep 25, 8:11 PM CDT	Tornado Warning	JAN	Leflore, Sunflower	64 min
Sep 25, 8:29 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower, Washington	61 min
Sep 25, 8:36 PM CDT	Tornado Warning	JAN	Bolivar, Sunflower, Washington	54 min
Sep 25, 8:50 PM CDT	Flash Flood Warning	JAN	Bolivar, Sunflower	115 min
Sep 25, 8:56 PM CDT	Severe Thunderstorm Warning	JAN	Sunflower, Washington	64 min
Sep 25, 9:13 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Leflore, Sunflower	47 min
Sep 25, 9:19 PM CDT	Tornado Warning	JAN	Leflore, Sunflower	24 min
Sep 25, 9:36 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Washington	54 min
Sep 25, 9:37 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys, Leflore, Sunflower	38 min
Sep 25, 9:59 PM CDT	Severe Thunderstorm Warning	JAN	Sunflower, Washington	31 min
Sep 25, 10:13 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Leflore	19 min
Sep 25, 10:28 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Washington	77 min
Sep 25, 10:31 PM CDT	Flash Flood Warning	JAN	Issaquena, Sharkey, Washington	119 min
Sep 25, 11:14 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Yazoo	35 min
Sep 26, 12:07 AM CDT	Special Weather Statement	JAN	Issaquena	28 min
Sep 26, 2:28 PM CDT	Special Weather Statement	JAN	Lauderdale	47 min
Sep 26, 3:11 PM CDT	Special Weather Statement	JAN	Lauderdale	29 min
Sep 25, 9:06 PM CDT	Severe Thunderstorm Warning	JAN	Ashley	54 min
Sep 25, 9:44 PM CDT	Severe Thunderstorm Warning	JAN	Ashley	76 min

Nearby

Tornado Warnings in Mississippi, 2011 Tornado Warnings in Arkansas, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.