Alert archive / Alabama / Mesoscale Discussions in 2005
Mesoscale Discussion 44
The Storm Prediction Center issued this mesoscale discussion at Jan 7, 2005, 8:34 PM CST for 20 counties in Alabama; 6 parishes in Louisiana; 13 counties in Mississippi. It was in force for 26 min.
The area
The outline as issued.
The facts
- Issued
- Jan 7, 2005, 8:34 PM CST (02:34 UTC)
- Expired
- Jan 7, 2005, 9:00 PM CST
- In force
- 26 min
- Issued by
- the Storm Prediction Center
All 39 counties
Autauga County, AL, Baldwin County, AL, Bibb County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Dallas County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Perry County, AL, Shelby County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Washington County, AL, Wilcox County, AL, Jefferson Parish, LA, Orleans Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Clarke County, MS, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jones County, MS, Lamar County, MS, Pearl River County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 69 km from the middle of the area, began a volume at 02:35 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
Slidell Radar S, LA (KSIL), launched 00:00Z, 2.6 hours before the alert went out and 128 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
- 413 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 691 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.5
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 |
|---|---|---|---|---|
| Jan 7, 8:45 PM CST | Tornado Watch | SPC | Bibb, Blount, Calhoun, Cherokee, Chilton, Choctaw and 19 more | 5 hr |
| Jan 7, 11:44 PM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Calhoun, Chilton, Clarke and 14 more | 91 min |
Nearby
Mesoscale Discussions in Alabama, 2005Mesoscale Discussions in Mississippi, 2005Mesoscale Discussions in Louisiana, 2005Every mesoscale discussion in 2005
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.