Alert archive / Mississippi / Tornado Warnings in 2013

Tornado Warning 49, NWS Jackson, MS

April 11, 2013Lowndes County, Noxubee County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 11, 2013, 12:46 PM CDT for Lowndes County, Noxubee County, Mississippi. It was in force for 14 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: Apr 11, 2013, 12:46 PM CDT (17:46 UTC)
Expired: Apr 11, 2013, 1:00 PM CDT
In force: 14 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Lowndes County, MS, Noxubee County, MS

The radar

The Columbus AFB radar (KGWX), 65 km from the middle of the area, began a volume at 17:49 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
Apr 11, 12:48 PM CDT	TORNADO 1	4 Nw Pickensville, AL	TREES AND POWER LINES WERE BLOWN DOWN ALONG PINE GROVE ROAD NEAR THE PINE GROVE COMMUNITY. STATE POLICE REPORT DAMAGE TO MULTIPLE HOMES. NUMEROUS TREES WERE ALSO BLOWN DOWN ALONG A PATH. RADAR INDICATED DEBRIS SIGNATURE AND PHOTOS OF A TORNADO WERE TAKEN.
Apr 11, 12:53 PM CDT	HAIL 1.75	6 S New Hope, MS

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
Apr 11, 8:00 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.8 hours before the alert went out and 143 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: 35 J/kg
Mixed-layer CIN: -291 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 143 m²/s²
0-3 km storm-relative helicity: 169 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.

013 
WFUS54 KJAN 111746
TORJAN
MSC087-103-111800-
/O.NEW.KJAN.TO.W.0049.130411T1746Z-130411T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1246 PM CDT THU APR 11 2013

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  NOXUBEE COUNTY IN EAST CENTRAL MISSISSIPPI...
  LOWNDES COUNTY IN NORTHEAST MISSISSIPPI...

* UNTIL 100 PM CDT

* AT 1245 PM CDT...A CONFIRMED DAMAGING TORNADO WAS LOCATED NEAR
  BIGBEE VALLEY MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING A LONG TRACK DAMAGING TORNADO 
WITH CONFIRMED INJURIES.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CDT THURSDAY AFTERNOON
FOR EASTERN MISSISSIPPI.

LAT...LON 3335 8829 3329 8829 3322 8830 3322 8831
      3326 8842 3340 8829 3339 8829 3336 8829
TIME...MOT...LOC 1745Z 221DEG 37KT 3324 8833

$$

CME

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 9:49 PM CDT	Special Weather Statement	JAN	Bolivar	61 min
Apr 10, 10:01 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	29 min
Apr 10, 11:23 PM CDT	Special Weather Statement	JAN	Bolivar	57 min
Apr 11, 12:19 AM CDT	Special Weather Statement	JAN	Washington	61 min
Apr 11, 8:50 AM CDT	River Flood Warning	JAN	Attala, Holmes	6 days
Apr 11, 8:58 AM CDT	Special Weather Statement	JAN	Lincoln	32 min
Apr 11, 9:28 AM CDT	River Flood Warning	JAN	Neshoba	24 hr
Apr 11, 10:13 AM CDT	Special Weather Statement	JAN	Smith	32 min
Apr 11, 10:45 AM CDT	Special Weather Statement	JAN	Scott	20 min
Apr 11, 10:53 AM CDT	Special Weather Statement	JAN	Jasper	22 min
Apr 11, 11:25 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Neshoba, Newton	50 min
Apr 11, 11:31 AM CDT	Tornado Warning Emergency	JAN	Kemper, Neshoba	59 min
Apr 11, 11:32 AM CDT	Areal Flood Warning	JAN	Holmes, Humphreys, Issaquena, Sharkey, Washington, Yazoo	6 hr
Apr 11, 11:56 AM CDT	Tornado Warning Emergency	JAN	Noxubee	64 min
Apr 11, 12:02 PM CDT	Severe Thunderstorm Warning	JAN	Clay	28 min
Apr 11, 12:18 PM CDT	Severe Thunderstorm Warning	JAN	Marion	42 min
Apr 11, 12:42 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	48 min
Apr 11, 12:45 PM CDT	Tornado Warning	JAN	Forrest, Lamar, Marion	45 min
Apr 11, 1:17 PM CDT	Severe Thunderstorm Warning	JAN	Jones	43 min
Apr 11, 1:26 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	49 min
Apr 11, 1:29 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	31 min
Apr 11, 1:34 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper	56 min
Apr 11, 1:50 PM CDT	Tornado Warning	JAN	Clarke, Lauderdale	40 min
Apr 11, 4:10 PM CDT	River Flood Warning	JAN	Carroll, Leflore	43 hr

Nearby

Tornado Warnings in Mississippi, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.