Alert archive / Mississippi / Tornado Watches in 2022
Tornado Watch 558
The Storm Prediction Center issued this tornado watch at Oct 29, 2022, 12:26 PM CDT for 11 parishes in Louisiana; 24 counties in Mississippi. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 29, 2022, 12:26 PM CDT (17:26 UTC)
- Expired
- Oct 29, 2022, 9:41 PM CDT
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 35 counties
Jefferson Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Amite County, MS, Claiborne County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Simpson County, MS, Stone County, MS, Walthall County, MS
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 50%
- One or more EF2 to EF5 tornadoes
- 30%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 40%
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 2:52 PM CDT | Severe Thunderstorm Warning | LIX | Jackson | 38 min |
| Oct 29, 2:58 PM CDT | Tornado Warning | LIX | Jackson | 47 min |
| Oct 29, 3:32 PM CDT | Tornado Warning | LIX | Jackson | 28 min |
| Oct 29, 3:40 PM CDT | Tornado Warning | LIX | Jackson | 50 min |
| Oct 29, 4:35 PM CDT | Tornado Warning | LIX | Jackson | 12 min |
| Oct 29, 4:37 PM CDT | Tornado Warning | MOB | George | 17 min |
| Oct 29, 4:41 PM CDT | Tornado Warning | LIX | Jackson | 49 min |
| Oct 29, 5:24 PM CDT | Tornado Warning | LIX | Jackson | 36 min |
| Oct 29, 5:30 PM CDT | Tornado Warning | MOB | Perry, Stone | 45 min |
| Oct 29, 5:59 PM CDT | Severe Thunderstorm Warning | MOB | Greene, Perry | 46 min |
| Oct 29, 6:34 PM CDT | Severe Thunderstorm Warning | MOB | Greene, Perry, Wayne | 56 min |
| Oct 29, 6:46 PM CDT | Tornado Warning | MOB | Greene, Perry, Wayne | 39 min |
| Oct 29, 7:37 PM CDT | Severe Thunderstorm Warning | MOB | Greene, Wayne | 53 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 12:00Z, 5.4 hours before the alert went out and 78 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.
- Mixed-layer CAPE
- 27 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 218 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 12:11 PM CDT | Mesoscale Discussion | SPC | Ascension, East Baton Rouge, East Feliciana, Jefferson, Lafourche, Livingston and 11 more | 64 min |
| Oct 29, 3:28 PM CDT | Mesoscale Discussion | SPC | Saint Bernard | 92 min |
| Oct 29, 3:45 PM CDT | Tornado Watch | SPC | Wayne | 8 hr |
| Oct 29, 5:23 PM CDT | Mesoscale Discussion | SPC | George, Greene, Harrison, Jackson, Perry, Stone | 97 min |
Nearby
Tornado Watches in Mississippi, 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.