Alert archive / Mississippi / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 13, NWS Jackson, MS

February 20, 2014Washington County, Mississippi; Chicot County, Arkansas

NWS Jackson, MS issued this severe thunderstorm warning at Feb 20, 2014, 5:19 PM CST for Washington County, Mississippi; Chicot County, Arkansas. It was in force for 41 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Feb 20, 2014, 5:19 PM CST (23:19 UTC)
Expired: Feb 20, 2014, 6:00 PM CST
In force: 41 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), 141 km from the middle of the area, began a volume at 23:20 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.

What was reported inside it

Time	Report	Where	Remark
Feb 20, 5:25 PM CST	TSTM WND DMG	4 Sse Avon, MS	A ROOF WAS BLOWN OFF A MOBILE HOME ON RIVERSIDE ROAD NEAR MS HIGHWAY 12
Feb 20, 5:35 PM CST	TSTM WND DMG	Arcola, MS	A CARPORT WAS DAMAGED BY STRONG WINDS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 20, 12:47 PM CST	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.3 hours before the alert went out and 132 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: 39 J/kg
Mixed-layer CIN: -357 J/kg
Mixed-layer LCL: 628 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 246 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

912 
WUUS54 KJAN 202319
SVRJAN
ARC017-MSC151-210000-
/O.NEW.KJAN.SV.W.0013.140220T2319Z-140221T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
519 PM CST THU FEB 20 2014

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHICOT COUNTY IN SOUTHEAST ARKANSAS...
  WASHINGTON COUNTY IN NORTHWEST MISSISSIPPI...

* UNTIL 600 PM CST

* AT 519 PM CST...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES EAST OF
  EUDORA...AND MOVING NORTHEAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  AVON AROUND 530 PM CST.
  WAYSIDE AROUND 535 PM CST.
  ESTILL AROUND 540 PM CST.
  ARCOLA AROUND 545 PM CST.
  LELAND AROUND 550 PM CST.
  TRIBBETT AROUND 555 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING AND STAY AWAY FROM WINDOWS.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CST
THURSDAY EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHWESTERN MISSISSIPPI.

LAT...LON 3316 9077 3303 9117 3318 9129 3353 9079
      3353 9078
TIME...MOT...LOC 2319Z 235DEG 36KT 3315 9114

$$

MRM

1 follow-up statement

029 
WWUS54 KJAN 202331
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
531 PM CST THU FEB 20 2014

ARC017-MSC151-210000-
/O.CON.KJAN.SV.W.0013.000000T0000Z-140221T0000Z/
CHICOT AR-WASHINGTON MS-
531 PM CST THU FEB 20 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
WASHINGTON AND EXTREME EAST CENTRAL CHICOT COUNTIES UNTIL 600 PM
CST...

AT 528 PM CST...A SEVERE THUNDERSTORM WAS LOCATED NEAR AVON...AND
MOVING NORTHEAST AT 40 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ESTILL AROUND 540 PM CST.
  ARCOLA AROUND 545 PM CST.
  DARLOVE AROUND 550 PM CST.
  TRIBBETT AROUND 555 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING AND STAY AWAY FROM WINDOWS.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CST
THURSDAY EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHWESTERN MISSISSIPPI.

LAT...LON 3316 9077 3306 9111 3332 9109 3353 9079
      3353 9078
TIME...MOT...LOC 2331Z 235DEG 36KT 3321 9102

$$

MRM

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 20, 2:08 PM CST	Special Weather Statement	JAN	Bolivar, Issaquena, Leflore, Sharkey, Sunflower, Washington	67 min
Feb 20, 3:33 PM CST	Special Weather Statement	JAN	Bolivar	32 min
Feb 20, 3:47 PM CST	Special Weather Statement	JAN	Bolivar	33 min
Feb 20, 4:06 PM CST	Severe Thunderstorm Warning	JAN	Bolivar	54 min
Feb 20, 4:27 PM CST	Special Weather Statement	JAN	Lamar	28 min
Feb 20, 4:37 PM CST	Special Weather Statement	JAN	Jasper	43 min
Feb 20, 4:50 PM CST	Special Weather Statement	JAN	Bolivar	45 min
Feb 20, 5:06 PM CST	Severe Thunderstorm Warning	JAN	Bolivar	39 min
Feb 20, 5:11 PM CST	Special Weather Statement	JAN	Washington	29 min
Feb 20, 5:16 PM CST	Severe Thunderstorm Warning	JAN	Jones	44 min
Feb 20, 5:27 PM CST	Special Weather Statement	JAN	Newton	38 min
Feb 20, 5:39 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Leflore, Sunflower	51 min
Feb 20, 5:45 PM CST	Tornado Warning	JAN	Jones	30 min
Feb 20, 5:48 PM CST	Special Weather Statement	JAN	Lauderdale	47 min
Feb 20, 5:52 PM CST	Tornado Warning	JAN	Leflore, Sunflower	53 min
Feb 20, 3:00 PM CST	Special Weather Statement	JAN	Ashley	30 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2014 Severe Thunderstorm Warnings in Arkansas, 2014 Every severe thunderstorm warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.