Alert archive / Mississippi / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 13, NWS Jackson, MS

February 23, 2005Claiborne County, Warren County, Mississippi; Tensas Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Feb 23, 2005, 1:12 PM CST for Claiborne County, Warren County, Mississippi; Tensas Parish, Louisiana. It was in force for 48 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: Feb 23, 2005, 1:12 PM CST (19:12 UTC)
Expired: Feb 23, 2005, 2:00 PM CST
In force: 48 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Tensas Parish, LA, Claiborne County, MS, Warren County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 101 km from the middle of the area, began a volume at 19:15 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.

Issued	Product	Office	Lasted
Feb 23, 11:45 AM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.2 hours before the alert went out and 94 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: 201 J/kg
Mixed-layer CIN: -185 J/kg
Mixed-layer LCL: 597 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 162 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KJAN 231913
SVRJAN
LAC107-MSC021-149-232000-
/O.NEW.KJAN.SV.W.0013.050223T1912Z-050223T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
112 PM CST WED FEB 23 2005

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL TENSAS PARISH IN NORTHEAST LOUISIANA
  NORTHERN CLAIBORNE COUNTY IN SOUTHWEST MISSISSIPPI
  THIS INCLUDES THE CITY OF GRAND GULF
  SOUTHERN WARREN COUNTY IN WEST CENTRAL MISSISSIPPI

* UNTIL 200 PM CST

* AT 112 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  WEST OF GRAND GULF...AND MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GRAND GULF BY 120 PM CST

TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.

LAT...LON 3215 9115 3211 9116 3202 9112 3190 9125
      3202 9073 3235 9073

$$

EEC

1 follow-up statement

000 
WWUS54 KJAN 231943
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
142 PM CST WED FEB 23 2005

LAC107-231952-
/O.CAN.KJAN.SV.W.0013.000000T0000Z-050223T2000Z/
TENSAS LA-
142 PM CST WED FEB 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR TENSAS PARISH IS CANCELLED...

LAT...LON 3216 9109 3210 9105 3205 9105 3197 9111
      3202 9073 3235 9073

$$

MSC021-149-232000-
/O.CON.KJAN.SV.W.0013.000000T0000Z-050223T2000Z/
CLAIBORNE MS-WARREN MS-
142 PM CST WED FEB 23 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 200 PM CST FOR
SOUTHERN WARREN AND NORTHERN CLAIBORNE COUNTIES...

AT 140 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES NORTHEAST OF GRAND
GULF...MOVING NORTHEAST AT 35 MPH.

LAT...LON 3216 9109 3210 9105 3205 9105 3197 9111
      3202 9073 3235 9073

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 23, 9:19 AM CST	Severe Thunderstorm Warning	JAN	Leflore, Sunflower	56 min
Feb 23, 1:37 PM CST	Severe Thunderstorm Warning	JAN	Adams	23 min
Feb 23, 1:56 PM CST	Severe Thunderstorm Warning	JAN	Adams, Franklin	49 min
Feb 23, 12:06 PM CST	Severe Thunderstorm Warning	JAN	Catahoula, Franklin	39 min
Feb 23, 12:36 PM CST	Severe Thunderstorm Warning	JAN	Tensas	39 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2005 Severe Thunderstorm Warnings in Louisiana, 2005 Every severe thunderstorm warning in 2005

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.