Alert archive / Mississippi / Tornado Watches in 2022

Tornado Watch 586

December 13, 20228 parishes in Louisiana; 38 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Dec 13, 2022, 11:42 PM CST for 8 parishes in Louisiana; 38 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Dec 13, 2022, 11:42 PM CST (05:42 UTC)
Expired: Dec 14, 2022, 5:58 AM CST
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1 in
Strongest gust expected: 65 kt

All 46 counties

Catahoula Parish, LA, Concordia Parish, LA, East Feliciana Parish, LA, Franklin Parish, LA, Madison Parish, LA, Pointe Coupee Parish, LA, Tensas Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Attala County, MS, Carroll County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Warren County, MS, Webster County, MS, Wilkinson County, MS, Winston County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 69 km from the middle of the area, began a volume at 05:43 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 60%
One or more EF2 to EF5 tornadoes: 40%
Ten or more severe wind reports: 40%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 10%
One or more hailstones of 2 inches or more: 10%
Six or more combined severe hail and wind reports: 60%

Warnings issued inside it

31 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Dec 13, 11:51 PM CST	Severe Thunderstorm Warning	JAN	East Carroll, Franklin, Madison	54 min
Dec 13, 11:54 PM CST	Tornado Warning	JAN	East Carroll, Madison	66 min
Dec 13, 11:57 PM CST	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	48 min
Dec 14, 12:05 AM CST	Tornado Warning	JAN	Holmes, Humphreys, Sharkey, Yazoo	40 min
Dec 14, 12:13 AM CST	Tornado Warning	JAN	Carroll, Grenada, Leflore	62 min
Dec 14, 12:16 AM CST	Severe Thunderstorm Warning	JAN	Catahoula, Concordia, Franklin, Tensas	44 min
Dec 14, 12:31 AM CST	Tornado Warning	JAN	Humphreys, Issaquena, Sharkey, Yazoo	44 min
Dec 14, 12:48 AM CST	Severe Thunderstorm Warning	JAN	Attala, Carroll, Holmes, Humphreys, Yazoo	57 min
Dec 14, 12:54 AM CST	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	51 min
Dec 14, 12:55 AM CST	Flash Flood Warning	JAN	East Carroll, Madison	3 hr
Dec 14, 12:56 AM CST	Tornado Warning	JAN	Catahoula, Concordia	37 min
Dec 14, 1:03 AM CST	Tornado Warning	JAN	Attala, Carroll, Holmes, Montgomery	57 min
Dec 14, 1:05 AM CST	Tornado Warning	JAN	Holmes, Yazoo	55 min
Dec 14, 1:11 AM CST	Severe Thunderstorm Warning	JAN	Concordia, Tensas	49 min
Dec 14, 1:27 AM CST	Flash Flood Warning	JAN	Catahoula, Concordia	3 hr
Dec 14, 1:31 AM CST	Severe Thunderstorm Warning	JAN	Concordia	44 min
Dec 14, 1:50 AM CST	Tornado Warning	JAN	Concordia	55 min
Dec 14, 1:50 AM CST	Severe Thunderstorm Warning	JAN	Attala, Carroll, Choctaw, Montgomery, Webster	55 min
Dec 14, 1:56 AM CST	Severe Thunderstorm Warning	JAN	Tensas	49 min
Dec 14, 2:01 AM CST	Flash Flood Warning	JAN	Tensas	3 hr
Dec 14, 2:36 AM CST	Severe Thunderstorm Warning	JAN	Concordia	54 min
Dec 14, 2:51 AM CST	Tornado Warning	JAN	Adams, Franklin, Jefferson	54 min
Dec 14, 3:05 AM CST	Flash Flood Warning	JAN	Concordia	3 hr
Dec 14, 3:33 AM CST	Tornado Warning	JAN	Claiborne, Copiah, Jefferson	57 min
Dec 14, 3:43 AM CST	Severe Thunderstorm Warning	JAN	Franklin	62 min
Dec 14, 3:52 AM CST	Flash Flood Warning	JAN	Claiborne, Jefferson	3 hr
Dec 14, 5:02 AM CST	Tornado Warning	JAN	Copiah, Hinds, Rankin	58 min
Dec 14, 5:08 AM CST	Tornado Warning	JAN	Copiah, Lincoln, Rankin, Simpson	67 min
Dec 14, 5:24 AM CST	Flash Flood Warning	JAN	Adams, Franklin, Jefferson	3 hr
Dec 14, 5:29 AM CST	Flash Flood Warning	LIX	Pointe Coupee, West Feliciana	7 hr
Dec 14, 5:36 AM CST	Tornado Warning	JAN	Madison, Rankin, Scott	54 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 5.7 hours before the alert went out and 61 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: 50 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 505 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 307 m²/s²
0-3 km storm-relative helicity: 433 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 13, 6:25 PM CST	Tornado Watch	SPC	Catahoula, Concordia, East Carroll, Franklin, Madison, Morehouse and 3 more	8 hr
Dec 13, 7:06 PM CST	Mesoscale Discussion	SPC	Allen, Avoyelles, Beauregard, Caldwell, Catahoula, Concordia and 12 more	114 min
Dec 13, 8:31 PM CST	Mesoscale Discussion	SPC	Caldwell, Catahoula, Concordia, East Carroll, Franklin, LaSalle and 6 more	119 min
Dec 13, 8:48 PM CST	Mesoscale Discussion	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 15 more	87 min
Dec 13, 9:33 PM CST	Tornado Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 12 more	8 hr
Dec 13, 11:05 PM CST	Mesoscale Discussion	SPC	East Feliciana, Saint Helena, West Feliciana	115 min
Dec 14, 2:13 AM CST	Mesoscale Discussion	SPC	Acadia, Allen, Avoyelles, Calcasieu, Cameron, Catahoula and 12 more	2 hr
Dec 14, 4:52 AM CST	Mesoscale Discussion	SPC	Acadia, Ascension, East Baton Rouge, East Feliciana, Iberville, Lafayette and 11 more	83 min
Dec 14, 5:55 AM CST	Tornado Watch	SPC	Acadia, Ascension, Assumption, Cameron, East Baton Rouge, East Feliciana and 19 more	7 hr
Dec 14, 9:47 AM CST	Mesoscale Discussion	SPC	Acadia, Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia and 16 more	118 min
Dec 14, 11:37 AM CST	Mesoscale Discussion	SPC	Ascension, East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena and 6 more	113 min
Dec 14, 12:22 PM CST	Tornado Watch PDS	SPC	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia, Iberville and 17 more	10 hr
Dec 14, 1:20 PM CST	Mesoscale Discussion	SPC	Ascension, Assumption, East Baton Rouge, Livingston, Orleans, Saint Charles and 7 more	85 min
Dec 14, 2:53 PM CST	Mesoscale Discussion	SPC	Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 3 more	97 min
Dec 14, 4:35 PM CST	Mesoscale Discussion	SPC	Jefferson, Saint Bernard	115 min
Dec 14, 5:01 PM CST	Mesoscale Discussion	SPC	George, Greene, Perry, Stone, Wayne	89 min

Nearby

Tornado Watches in Mississippi, 2022 Tornado Watches in Louisiana, 2022 Every tornado watch in 2022

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.