Alert archive / Mississippi / Mesoscale Discussions in 2008
Mesoscale Discussion 2202
The Storm Prediction Center issued this mesoscale discussion at Sep 2, 2008, 3:42 AM CDT for 7 parishes in Louisiana; 32 counties in Mississippi. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Sep 2, 2008, 3:42 AM CDT (08:42 UTC)
- Expired
- Sep 2, 2008, 5:15 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 39 counties
East Baton Rouge Parish, LA, East Feliciana Parish, LA, Livingston Parish, LA, Saint Helena 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, Hancock County, MS, Hinds County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Neshoba County, MS, Newton County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Warren County, MS, Wilkinson County, MS, Yazoo County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 88 km from the middle of the area, began a volume at 08:45 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 8.7 hours before the alert went out and 90 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
- 440 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 534 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 404 m²/s²
- 0-3 km storm-relative helicity
- 441 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 7.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 11:01 PM CDT | Mesoscale Discussion | SPC | Bienville, Caldwell, Catahoula, Claiborne, Concordia, East Carroll and 23 more | 59 min |
| Sep 1, 11:41 PM CDT | Tornado Watch | SPC | Caldwell, Catahoula, Concordia, East Baton Rouge, East Carroll, East Feliciana and 15 more | 7 hr |
| Sep 2, 6:04 AM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Livingston and 9 more | 56 min |
| Sep 2, 6:34 AM CDT | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 16 more | 9 hr |
| Sep 2, 3:11 PM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 16 more | 64 min |
| Sep 2, 3:54 PM CDT | Tornado Watch | SPC | Ascension, Assumption, Catahoula, Concordia, East Baton Rouge, East Carroll and 21 more | 6 hr |
| Sep 2, 4:38 PM CDT | Tornado Watch | SPC | DeSoto, Lafayette, Marshall, Panola, Tate, Tunica | 3 hr |
| Sep 2, 6:42 PM CDT | Mesoscale Discussion | SPC | DeSoto, Marshall, Panola, Tate, Tunica | 2 hr |
Nearby
Mesoscale Discussions in Mississippi, 2008Mesoscale Discussions in Louisiana, 2008Every mesoscale discussion in 2008
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.