Alert archive / Mississippi / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 149, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Dec 21, 2015, 9:35 PM CST for Jackson County, Mississippi. It was in force for 25 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
- Dec 21, 2015, 9:35 PM CST (03:35 UTC)
- Expired
- Dec 21, 2015, 10:00 PM CST
- In force
- 25 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Jackson County, MS
The radar
The Mobile radar (KMOB), 44 km from the middle of the area, began a volume at 03:38 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.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 3.6 hours before the alert went out and 106 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
- 366 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 289 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.2
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.
In the hours before
Special weather statement, Dec 21, 8:16 PM CST, 1 hour 19 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 |
|---|---|---|---|---|
| Dec 21, 6:41 PM CST | Special Marine Warning | LIX | 64 min | |
| Dec 21, 7:41 PM CST | Special Marine Warning | LIX | 64 min | |
| Dec 21, 8:28 PM CST | Special Marine Warning | LIX | 62 min | |
| Dec 21, 9:37 PM CST | Special Marine Warning | LIX | 23 min | |
| Dec 22, 12:22 AM CST | Special Marine Warning | LIX | 53 min | |
| Dec 22, 1:17 AM CST | Special Marine Warning | LIX | 118 min | |
| Dec 22, 4:06 AM CST | Dense Fog Advisory | LIX | Assumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Bernard and 7 more | 5 hr |
| Dec 22, 4:43 PM CST | Special Marine Warning | LIX | 47 min | |
| Dec 22, 5:19 PM CST | Special Marine Warning | LIX | 41 min | |
| Dec 21, 8:16 PM CST | Special Weather Statement | LIX | Hancock, Harrison, Jackson | 74 min |
| Dec 22, 12:44 PM CST | River Flood Warning | LIX | Pearl River | 45 hr |
| Dec 22, 4:47 PM CST | River Flood Warning | LIX | Harrison | 4 days |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2015Every severe thunderstorm warning in 2015
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.