Alert archive / Kansas / Tornado Watches in 2009
Tornado Watch 426
The Storm Prediction Center issued this tornado watch at Jun 15, 2009, 6:01 PM CDT for 49 counties in Kansas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2009, 6:01 PM CDT (23:01 UTC)
- Expired
- Jun 16, 2009, 12:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 70 kt
All 49 counties
Allen County, KS, Anderson County, KS, Barton County, KS, Brown County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Cowley County, KS, Dickinson County, KS, Douglas County, KS, Elk County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Kingman County, KS, Labette County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Montgomery County, KS, Morris County, KS, Nemaha County, KS, Neosho County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS
The radar
The Topeka radar (KTWX), 86 km from the middle of the area, began a volume at 23:01 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
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
48 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 6:03 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Greenwood | 42 min |
| Jun 15, 6:17 PM CDT | Severe Thunderstorm Warning | ICT | Lincoln | 28 min |
| Jun 15, 6:25 PM CDT | Tornado Warning | ICT | Chase, Marion | 65 min |
| Jun 15, 6:28 PM CDT | Severe Thunderstorm Warning | ICT | Chase, Marion | 62 min |
| Jun 15, 6:30 PM CDT | Tornado Warning | ICT | Butler | 45 min |
| Jun 15, 6:40 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Chase, Greenwood | 31 min |
| Jun 15, 6:43 PM CDT | Severe Thunderstorm Warning | ICT | Lincoln | 16 min |
| Jun 15, 6:44 PM CDT | Severe Thunderstorm Warning | TOP | Cloud, Ottawa | 46 min |
| Jun 15, 6:55 PM CDT | Tornado Warning | ICT | Butler | 50 min |
| Jun 15, 7:01 PM CDT | Tornado Warning | ICT | Reno | 59 min |
| Jun 15, 7:03 PM CDT | Severe Thunderstorm Warning | ICT | Marion | 16 min |
| Jun 15, 7:12 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson, Morris | 48 min |
| Jun 15, 7:18 PM CDT | Severe Thunderstorm Warning | TOP | Cloud, Republic, Washington | 57 min |
| Jun 15, 7:21 PM CDT | Tornado Warning | ICT | Butler, Greenwood | 54 min |
| Jun 15, 7:27 PM CDT | Tornado Warning | ICT | Chase | 63 min |
| Jun 15, 7:31 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Riley, Wabaunsee | 59 min |
| Jun 15, 7:40 PM CDT | Severe Thunderstorm Warning | ICT | Reno | 50 min |
| Jun 15, 7:40 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Cloud | 20 min |
| Jun 15, 7:45 PM CDT | Severe Thunderstorm Warning | ICT | Chase, Marion | 31 min |
| Jun 15, 7:50 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 40 min |
| Jun 15, 7:51 PM CDT | Severe Thunderstorm Warning | ICT | Harvey, Reno, Sedgwick | 54 min |
| Jun 15, 7:54 PM CDT | Severe Thunderstorm Warning | ICT | Kingman, Sedgwick, Sumner | 66 min |
| Jun 15, 7:54 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Pottawatomie, Riley | 36 min |
| Jun 15, 7:56 PM CDT | Severe Thunderstorm Warning | ICT | McPherson, Rice, Saline | 64 min |
| Jun 15, 8:00 PM CDT | Tornado Warning | ICT | Greenwood | 45 min |
| Jun 15, 8:10 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Marshall, Pottawatomie, Wabaunsee | 50 min |
| Jun 15, 8:19 PM CDT | Severe Thunderstorm Warning | ICT | Harper, Kingman | 56 min |
| Jun 15, 8:20 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Chase, Harvey, McPherson, Marion, Reno and 2 more | 55 min |
| Jun 15, 8:27 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Cowley, Sedgwick, Sumner | 63 min |
| Jun 15, 8:30 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 45 min |
| Jun 15, 8:38 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Jackson, Marshall, Nemaha, Pottawatomie | 52 min |
| Jun 15, 8:42 PM CDT | Tornado Warning | ICT | Greenwood | 23 min |
| Jun 15, 8:48 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Lyon | 32 min |
| Jun 15, 8:52 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson, Morris | 53 min |
| Jun 15, 8:54 PM CDT | Severe Thunderstorm Warning | ICT | Harper, Kingman, Sedgwick, Sumner | 47 min |
| Jun 15, 9:01 PM CDT | Severe Thunderstorm Warning | TOP | Osage | 28 min |
| Jun 15, 9:17 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Lyon, Morris, Riley, Wabaunsee | 34 min |
| Jun 15, 9:19 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 41 min |
| Jun 15, 9:26 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Cowley, Sedgwick, Sumner | 64 min |
| Jun 15, 9:27 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Jackson, Nemaha | 54 min |
| Jun 15, 9:36 PM CDT | Flash Flood Warning | TOP | Morris | 3 hr |
| Jun 15, 9:38 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey, Franklin, Osage | 52 min |
| Jun 15, 9:59 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Elk, Greenwood | 46 min |
| Jun 15, 10:08 PM CDT | Severe Thunderstorm Warning | TOP | Douglas | 28 min |
| Jun 15, 10:28 PM CDT | Severe Thunderstorm Warning | ICT | Allen, Elk, Greenwood, Neosho, Wilson, Woodson | 62 min |
| Jun 15, 10:30 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Harvey, Marion | 45 min |
| Jun 15, 11:12 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Chase, Harvey, Marion, Sedgwick | 41 min |
| Jun 15, 11:31 PM CDT | Severe Thunderstorm Warning | ICT | McPherson, Reno, Rice | 44 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 11.0 hours before the alert went out and 136 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
- 278 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 532 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.6
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 7:46 PM CDT | Tornado Watch | SPC | Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more | 5 hr |
| Jun 14, 10:36 PM CDT | Mesoscale Discussion | SPC | Atchison, Barton, Brown, Chase, Clay, Cloud and 42 more | 114 min |
| Jun 14, 10:54 PM CDT | Tornado Watch | SPC | Allen, Butler, Chase, Chautauqua, Cowley, Elk and 9 more | 5 hr |
| Jun 14, 11:45 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Clay, Cloud, Dickinson, Ellsworth, Geary and 21 more | 7 hr |
| Jun 15, 2:31 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 14 more | 59 min |
| Jun 15, 3:55 AM CDT | Mesoscale Discussion | SPC | Anderson, Atchison, Clay, Cloud, Coffey, Dickinson and 25 more | 65 min |
| Jun 15, 6:24 AM CDT | Mesoscale Discussion | SPC | Atchison, Dickinson, Douglas, Franklin, Geary, Jackson and 13 more | 96 min |
| Jun 15, 11:59 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Cherokee, Crawford, Labette and 2 more | 61 min |
| Jun 15, 12:52 PM CDT | Severe Thunderstorm Watch | SPC | Bourbon, Cherokee, Crawford | 9 hr |
| Jun 15, 2:57 PM CDT | Mesoscale Discussion | SPC | Cloud, Jewell, Marshall, Norton, Phillips, Republic and 2 more | 63 min |
| Jun 15, 3:12 PM CDT | Tornado Watch | SPC | Barber, Clark, Comanche, Edwards, Ellis, Finney and 18 more | 8 hr |
| Jun 15, 3:34 PM CDT | Tornado Watch | SPC | Cheyenne, Decatur, Gove, Graham, Greeley, Jewell and 13 more | 8 hr |
| Jun 15, 5:04 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Butler, Chase, Chautauqua, Clay and 38 more | 86 min |
| Jun 15, 6:19 PM CDT | Mesoscale Discussion | SPC | Decatur, Jewell, Norton, Phillips, Rawlins, Republic and 1 more | 86 min |
| Jun 15, 6:50 PM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford | 85 min |
Nearby
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.