Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 120, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Sep 23, 2020, 4:18 PM CDT for Wilkinson County, Mississippi. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 23, 2020, 4:18 PM CDT (21:18 UTC)
- Expired
- Sep 23, 2020, 4:56 PM CDT
- In force
- 38 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Wilkinson 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 |
|---|---|---|---|
| Sep 23, 2:37 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 9.3 hours before the alert went out and 174 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 729 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 23, 1:20 PM CDT, 2 hours 58 minutes earlier.
Area forecast discussion, Sep 23, 1:20 PM CDT, 2 hours 58 minutes before
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</html>The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 7:28 AM CDT | Special Weather Statement | LIX | Iberville, West Baton Rouge | 32 min |
| Sep 23, 8:11 AM CDT | Special Weather Statement | LIX | Assumption, Iberville | 64 min |
| Sep 23, 9:09 AM CDT | Special Marine Warning | LIX | 36 min | |
| Sep 23, 9:55 AM CDT | Special Marine Warning | LIX | 50 min | |
| Sep 23, 10:47 AM CDT | Special Marine Warning | LIX | 43 min | |
| Sep 23, 12:47 PM CDT | Coastal Flood Warning | LIX | Saint John the Baptist | 23 hr |
| Sep 23, 3:35 PM CDT | Tornado Warning | LIX | West Feliciana | 40 min |
| Sep 23, 5:13 PM CDT | Severe Thunderstorm Warning | LIX | East Feliciana, West Feliciana | 47 min |
| Sep 23, 5:52 PM CDT | Special Weather Statement | LIX | East Baton Rouge, East Feliciana, Saint Helena | 68 min |
| Sep 23, 3:13 PM CDT | Tornado Warning | LIX | Wilkinson | 32 min |
| Sep 23, 3:52 PM CDT | Tornado Warning | LIX | Wilkinson | 23 min |
| Sep 23, 5:15 PM CDT | Tornado Warning | LIX | Wilkinson | 12 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2020Every severe thunderstorm warning in 2020
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.