Alert archive / Mississippi / Tornado Watches in 2022

Tornado Watch 64

March 22, 20229 counties in Alabama; 8 parishes in Louisiana; 15 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Mar 22, 2022, 7:00 PM CDT for 9 counties in Alabama; 8 parishes in Louisiana; 15 counties in Mississippi. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Mar 22, 2022, 7:00 PM CDT (00:00 UTC)
Expired
Mar 22, 2022, 10:47 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 32 counties

Choctaw County, AL, Clarke County, AL, Greene County, AL, Hale County, AL, Marengo County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Jefferson Parish, LA, Lafourche Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Tammany Parish, LA, Washington Parish, LA, Clarke County, MS, Covington County, MS, Forrest County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jones County, MS, Lamar County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 128 km from the middle of the area, began a volume at 00:00 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
70%
One or more EF2 to EF5 tornadoes
60%
Ten or more severe wind reports
60%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Mar 22, 7:00 PM CDTTornado WarningLIXJefferson, Lafourche, Plaquemines, Saint Charles45 min
Mar 22, 7:05 PM CDTTornado WarningMOBClarke, Washington19 min
Mar 22, 7:09 PM CDTTornado WarningMOBClarke36 min
Mar 22, 7:09 PM CDTTornado WarningLIXSaint Tammany50 min
Mar 22, 7:11 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile, Washington49 min
Mar 22, 7:19 PM CDTTornado WarningLIXJefferson, Orleans, Plaquemines, Saint Bernard38 min
Mar 22, 7:21 PM CDTFlash Flood WarningBMXTuscaloosa2 hr
Mar 22, 7:29 PM CDTFlash Flood WarningLIXJefferson, Orleans, Saint Bernard58 min
Mar 22, 7:31 PM CDTTornado WarningMOBBaldwin, Clarke, Monroe10 min
Mar 22, 7:32 PM CDTTornado WarningLIXSaint Tammany, Washington34 min
Mar 22, 7:40 PM CDTFlash Flood WarningBMXGreene, Hale, Sumter, Tuscaloosa2 hr
Mar 22, 7:53 PM CDTTornado WarningLIXSaint Tammany37 min
Mar 22, 8:43 PM CDTTornado WarningBMXHale, Perry19 min
Mar 22, 9:33 PM CDTFlash Flood WarningBMXJefferson, Walker87 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.0 hours before the alert went out and 207 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-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2022-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1480 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2022-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 352 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1480 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
352 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
3.7
Supercell composite
17.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 22, 9:40 PM CDTMesoscale DiscussionSPCAutauga, Baldwin, Bibb, Bullock, Butler, Chilton and 30 more2 hr
Mar 22, 10:45 PM CDTTornado WatchSPCAutauga, Baldwin, Barbour, Bullock, Butler, Chambers and 29 more7 hr
Mar 23, 1:00 AM CDTMesoscale DiscussionSPCAutauga, Baldwin, Bullock, Butler, Chilton, Clay and 16 more2 hr
Mar 23, 2:56 AM CDTMesoscale DiscussionSPCCoffee, Covington, Dale, Geneva, Houston94 min
Mar 23, 4:32 AM CDTMesoscale DiscussionSPCGeneva, Henry, Houston88 min
Mar 22, 7:15 PM CDTMesoscale DiscussionSPCOrleans, Saint Tammany60 min

Nearby

Tornado Watches in Mississippi, 2022Tornado Watches in Alabama, 2022Tornado Watches in Louisiana, 2022Every 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.