Alert archive / Missouri / Mesoscale Discussions in 2009
Mesoscale Discussion 95
The Storm Prediction Center issued this mesoscale discussion at Feb 11, 2009, 2:30 AM CST for 6 states. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Feb 11, 2009, 2:30 AM CST (08:30 UTC)
- Expired
- Feb 11, 2009, 4:00 AM CST
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 77 counties
Arkansas County, AR, Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Randolph County, AR, Sharp County, AR, St. Francis County, AR, White County, AR, Woodruff County, AR, Alexander County, IL, Monroe County, IL, Randolph County, IL, Fulton County, KY, Hickman County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dent County, MO, Dunklin County, MO, Franklin County, MO, Gasconade County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Pemiscot County, MO, Perry County, MO, Phelps County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Wayne County, MO, Coahoma County, MS, DeSoto County, MS, Panola County, MS, Quitman County, MS, Tate County, MS, Tunica County, MS, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 120 km from the middle of the area, began a volume at 08:32 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
Little Rock, AR (KLZK), launched 00:00Z, 8.5 hours before the alert went out and 168 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
- 632 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 645 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 3.9
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 |
|---|---|---|---|---|
| Feb 10, 6:13 PM CST | Mesoscale Discussion | SPC | Crawford, Washington | 92 min |
| Feb 10, 8:34 PM CST | Mesoscale Discussion | SPC | Conway, Crawford, Faulkner, Franklin, Garland, Hempstead and 19 more | 86 min |
| Feb 10, 9:30 PM CST | Tornado Watch | SPC | Baxter, Benton, Boone, Carroll, Clark, Cleburne and 42 more | 7 hr |
| Feb 10, 11:13 PM CST | Mesoscale Discussion | SPC | Baxter, Boone, Cleburne, Conway, Faulkner, Fulton and 18 more | 92 min |
| Feb 10, 11:45 PM CST | Tornado Watch | SPC | Arkansas, Clay, Craighead, Crittenden, Cross, Greene and 12 more | 6 hr |
| Feb 11, 12:37 AM CST | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Cleveland, Desha and 3 more | 53 min |
| Feb 11, 1:04 AM CST | Tornado Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Cleveland, Desha and 3 more | 5 hr |
| Feb 11, 4:01 AM CST | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Cleveland, Columbia and 6 more | 89 min |
| Feb 11, 5:26 AM CST | Mesoscale Discussion | SPC | Mississippi | 64 min |
| Feb 11, 10:02 AM CST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 81 more | 88 min |
| Feb 11, 10:38 AM CST | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Boone, Bourbon and 58 more | 6 hr |
| Feb 11, 12:35 PM CST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 84 more | 85 min |
| Feb 11, 12:59 PM CST | Tornado Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 32 more | 7 hr |
| Feb 11, 3:34 PM CST | Mesoscale Discussion | SPC | Bell, Boyd, Breathitt, Carter, Clay, Elliott and 19 more | 86 min |
| Feb 11, 9:36 AM CST | Mesoscale Discussion | SPC | George, Greene, Harrison, Jackson | 84 min |
| Feb 11, 11:10 AM CST | Tornado Watch | SPC | Bledsoe, Bradley, Franklin, Hamilton, Lincoln, McMinn and 6 more | 6 hr |
| Feb 11, 1:29 PM CST | Mesoscale Discussion | SPC | Bradley, Franklin, Hamilton, Marion, Polk | 2 hr |
Nearby
Mesoscale Discussions in Missouri, 2009Mesoscale Discussions in Arkansas, 2009Mesoscale Discussions in Tennessee, 2009Every mesoscale discussion in 2009
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.