Alert archive / Mississippi / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 113, NWS Jackson, MS

March 12, 2001Lamar County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 12, 2001, 6:32 AM CST for Lamar County, Mississippi. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Mar 12, 2001, 6:32 AM CST (12:32 UTC)
Expired: Mar 12, 2001, 7:15 AM CST
In force: 43 min
Issued by: NWS Jackson, MS
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Lamar County, MS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 12, 6:00 AM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.5 hours before the alert went out and 110 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: 1587 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 469 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 367 m²/s²
0-3 km storm-relative helicity: 453 m²/s²
Significant tornado parameter: 4.1
Supercell composite: 19.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KJAN 121233
SVRJAN
MSC073-121315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
632 AM CST MON MAR 12 2001

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAMAR COUNTY IN SOUTHEAST MISSISSIPPI

* UNTIL 715 AM CST

* AT 632 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 17 MILES WEST OF PURVIS...OR ABOUT 9 MILES
  SOUTHEAST OF COLUMBIA...MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL...
  BE NEAR PURVIS AT 645 AM CST
  BE NEAR WEST HATTIESBURG AT 655 AM CST

DAMAGING WINDS IN EXCESS OF 60 MPH CAN BE EXPECTED ALONG WITH LARGE 
HAIL. GO TO 
A SAFE PLACE NOW AND REMAIN PROTECTED UNTIL THE STORM HAS 
PASSED.

62

LAT...LON 3103 8961 3105 8935 3135 8935 3135 8943
          3141 8944 3133 8965

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 1:06 AM CST	Severe Thunderstorm Warning	JAN	Adams, Franklin	24 min
Mar 12, 1:27 AM CST	Severe Thunderstorm Warning	JAN	Copiah, Jefferson, Lincoln	48 min
Mar 12, 2:14 AM CST	Severe Thunderstorm Warning	JAN	Copiah, Rankin, Simpson	46 min
Mar 12, 2:29 AM CST	Severe Thunderstorm Warning	JAN	Hinds	46 min
Mar 12, 2:57 AM CST	Severe Thunderstorm Warning	JAN	Madison, Rankin	48 min
Mar 12, 3:02 AM CST	Severe Thunderstorm Warning	JAN	Attala	28 min
Mar 12, 3:08 AM CST	Severe Thunderstorm Warning	JAN	Hinds, Warren	52 min
Mar 12, 3:21 AM CST	Severe Thunderstorm Warning	JAN	Leake, Scott	39 min
Mar 12, 3:41 AM CST	Severe Thunderstorm Warning	JAN	Madison, Yazoo	49 min
Mar 12, 3:50 AM CST	Severe Thunderstorm Warning	JAN	Marion	40 min
Mar 12, 4:03 AM CST	Tornado Warning	JAN	Lamar, Marion	42 min
Mar 12, 4:21 AM CST	Tornado Warning	JAN	Forrest	39 min
Mar 12, 5:29 AM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	46 min
Mar 12, 5:54 AM CST	Severe Thunderstorm Warning	JAN	Marion	51 min
Mar 12, 7:17 AM CST	Severe Thunderstorm Warning	JAN	Lawrence, Lincoln	28 min
Mar 12, 7:25 AM CST	Severe Thunderstorm Warning	JAN	Claiborne, Jefferson	50 min
Mar 12, 7:25 AM CST	Severe Thunderstorm Warning	JAN	Adams	50 min
Mar 12, 7:48 AM CST	Severe Thunderstorm Warning	JAN	Marion	42 min
Mar 12, 7:51 AM CST	Severe Thunderstorm Warning	JAN	Franklin	39 min
Mar 12, 8:03 AM CST	Severe Thunderstorm Warning	JAN	Scott	27 min
Mar 12, 8:06 AM CST	Severe Thunderstorm Warning	JAN	Simpson, Smith	39 min
Mar 12, 8:14 AM CST	Tornado Warning	JAN	Marion	31 min
Mar 12, 8:31 AM CST	Severe Thunderstorm Warning	JAN	Covington, Lamar	29 min
Mar 12, 8:39 AM CST	Tornado Warning	JAN	Lamar	36 min
Mar 12, 8:42 AM CST	Severe Thunderstorm Warning	JAN	Lincoln	33 min
Mar 12, 8:47 AM CST	Tornado Warning	JAN	Forrest, Jones	43 min
Mar 12, 8:58 AM CST	Severe Thunderstorm Warning	JAN	Lawrence	32 min
Mar 12, 9:08 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis	37 min
Mar 12, 9:17 AM CST	Severe Thunderstorm Warning	JAN	Marion	28 min
Mar 12, 9:25 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis	35 min
Mar 12, 9:28 AM CST	Severe Thunderstorm Warning	JAN	Covington	32 min
Mar 12, 9:30 AM CST	Severe Thunderstorm Warning	JAN	Jones	30 min
Mar 12, 9:35 AM CST	Severe Thunderstorm Warning	JAN	Simpson, Smith	25 min
Mar 12, 9:36 AM CST	Severe Thunderstorm Warning	JAN	Forrest, Lamar	39 min
Mar 12, 9:40 AM CST	Tornado Warning	JAN	Lamar, Marion	35 min
Mar 12, 9:46 AM CST	Tornado Warning	JAN	Forrest	44 min
Mar 12, 9:48 AM CST	Severe Thunderstorm Warning	JAN	Jasper	42 min
Mar 12, 9:58 AM CST	Tornado Warning	JAN	Clarke, Jasper, Jones	47 min
Mar 12, 10:00 AM CST	Severe Thunderstorm Warning	JAN	Lauderdale, Newton	45 min
Mar 12, 10:15 AM CST	Severe Thunderstorm Warning	JAN	Neshoba	30 min
Mar 12, 10:18 AM CST	Severe Thunderstorm Warning	JAN	Noxubee, Oktibbeha, Winston	57 min
Mar 12, 10:18 AM CST	Severe Thunderstorm Warning	JAN	Lowndes	57 min
Mar 12, 10:21 AM CST	Severe Thunderstorm Warning	JAN	Kemper	24 min
Mar 12, 10:28 AM CST	Tornado Warning	JAN	Forrest, Lamar	32 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2001 Every severe thunderstorm warning in 2001

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.