Alert archive / Missouri / Tornado Watches in 2009
Tornado Watch 14
The Storm Prediction Center issued this tornado watch at Feb 10, 2009, 11:45 PM CST for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 10, 2009, 11:45 PM CST (05:45 UTC)
- Expired
- Feb 11, 2009, 6:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 70 kt
All 63 counties
Arkansas County, AR, Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Randolph County, AR, St. Francis County, AR, Woodruff County, AR, Bollinger County, MO, Butler County, MO, Camden County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dent County, MO, Douglas County, MO, Dunklin County, MO, Franklin County, MO, Gasconade County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Laclede County, MO, Madison County, MO, Maries County, MO, Miller County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Pemiscot County, MO, Perry County, MO, Phelps County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Washington County, MO, Wayne County, MO, Wright County, MO, Coahoma County, MS, DeSoto County, MS, Tunica County, MS, Dyer County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN
The radar
The Springfield radar (KSGF), 164 km from the middle of the area, began a volume at 05:48 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 90%
- One or more gusts of 65 knots or more
- 50%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 12:48 AM CST | Severe Thunderstorm Warning | PAH | Carter, Ripley | 42 min |
| Feb 11, 2:04 AM CST | Severe Thunderstorm Warning | PAH | Wayne | 41 min |
| Feb 11, 2:29 AM CST | Severe Thunderstorm Warning | LSX | Madison | 27 min |
| Feb 11, 2:31 AM CST | Severe Thunderstorm Warning | LZK | Cleburne, Independence, Jackson, Sharp, White, Woodruff | 44 min |
| Feb 11, 2:45 AM CST | Severe Thunderstorm Warning | PAH | Bollinger, Perry | 26 min |
| Feb 11, 4:09 AM CST | Severe Thunderstorm Warning | LZK | Arkansas, Desha, Drew, Lincoln | 36 min |
| Feb 11, 4:21 AM CST | Flash Flood Warning | PAH | Wayne | 4 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.8 hours before the alert went out and 190 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
- 7 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 1210 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 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, 2:30 AM CST | Mesoscale Discussion | SPC | Arkansas, Clay, Craighead, Crittenden, Cross, Fulton and 18 more | 90 min |
| 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, 9:36 AM CST | Mesoscale Discussion | SPC | George, Greene, Harrison, Jackson | 84 min |
| Feb 11, 10:02 AM CST | Mesoscale Discussion | SPC | Anderson, Bedford, Bledsoe, Blount, Bradley, Campbell and 52 more | 88 min |
| Feb 11, 10:38 AM CST | Tornado Watch | SPC | Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 21 more | 6 hr |
| Feb 11, 11:10 AM CST | Tornado Watch | SPC | Bledsoe, Bradley, Franklin, Hamilton, Lincoln, McMinn and 6 more | 6 hr |
| Feb 11, 12:35 PM CST | Mesoscale Discussion | SPC | Anderson, Bedford, Bledsoe, Blount, Campbell, Cannon and 39 more | 85 min |
| Feb 11, 12:59 PM CST | Tornado Watch | SPC | Anderson, Blount, Campbell, Carter, Claiborne, Cocke and 18 more | 7 hr |
| Feb 11, 1:29 PM CST | Mesoscale Discussion | SPC | Bradley, Franklin, Hamilton, Marion, Polk | 2 hr |
| Feb 11, 3:34 PM CST | Mesoscale Discussion | SPC | Blount, Carter, Claiborne, Cocke, Grainger, Greene and 12 more | 86 min |
Nearby
Tornado Watches in Missouri, 2009Tornado Watches in Arkansas, 2009Tornado Watches in Tennessee, 2009Every tornado watch 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.