Alert archive / Mississippi / Mesoscale Discussions in 2005
Mesoscale Discussion 437
The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2005, 3:06 PM CST for 9 counties in Arkansas; 9 parishes in Louisiana; 12 counties in Mississippi. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2005, 3:06 PM CST (21:06 UTC)
- Expired
- Mar 30, 2005, 5:00 PM CST
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 30 counties
Arkansas County, AR, Ashley County, AR, Bradley County, AR, Chicot County, AR, Desha County, AR, Drew County, AR, Lincoln County, AR, Phillips County, AR, Union County, AR, Bienville Parish, LA, Claiborne Parish, LA, East Carroll Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Union Parish, LA, West Carroll Parish, LA, Bolivar County, MS, Coahoma County, MS, DeSoto County, MS, Leflore County, MS, Marshall County, MS, Panola County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tunica County, MS, Washington County, MS
The radar
The Little Rock radar (KLZK), 166 km from the middle of the area, began a volume at 21:07 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 12:00Z, 9.1 hours before the alert went out and 186 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
- 829 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Mar 30, 5:24 PM CST | Mesoscale Discussion | SPC | East Baton Rouge, East Feliciana, Livingston, Saint Helena, Saint John the Baptist, Saint Tammany and 3 more | 96 min |
| Mar 30, 5:55 PM CST | Tornado Watch | SPC | East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena, Saint Tammany and 4 more | 7 hr |
Nearby
Mesoscale Discussions in Mississippi, 2005Mesoscale Discussions in Arkansas, 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.