Alert archive / Kansas / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 486
The Storm Prediction Center issued this severe thunderstorm watch at Aug 8, 2013, 3:57 AM CDT for 4 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2013, 3:57 AM CDT (08:57 UTC)
- Expired
- Aug 8, 2013, 6:36 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 33 counties
Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Allen County, KS, Anderson County, KS, Bourbon County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, McDonald County, MO, Newton County, MO, Craig County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Rogers County, OK, Washington County, OK
The radar
The Wichita radar (KICT), 126 km from the middle of the area, began a volume at 08:58 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
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 4:28 AM CDT | Flash Flood Warning | TSA | Benton, Carroll, Madison, Washington | 4 hr |
| Aug 8, 4:35 AM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Elk | 55 min |
| Aug 8, 5:59 AM CDT | Flash Flood Warning | SGF | Newton | 6 hr |
| Aug 8, 6:06 AM CDT | Flash Flood Warning | TSA | Benton, Washington | 114 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
Springfield, MO (KSGF), launched 00:00Z, 9.0 hours before the alert went out and 208 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
- 1157 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 969 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 5:24 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Clay, Cleburne and 22 more | 66 min |
| Aug 8, 5:32 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Benton, Boone, Carroll, Clay, Cleburne and 43 more | 6 hr |
| Aug 7, 8:16 PM CDT | Mesoscale Discussion | SPC | Clark, Finney, Ford, Grant, Gray, Greeley and 9 more | 89 min |
| Aug 7, 9:02 PM CDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche, Edwards, Harper, Kingman and 4 more | 88 min |
| Aug 7, 10:24 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Butler, Comanche, Cowley, Edwards, Harper and 8 more | 7 hr |
| Aug 7, 11:30 PM CDT | Mesoscale Discussion | SPC | Clark, Finney, Ford, Gray, Greeley, Haskell and 4 more | 60 min |
| Aug 8, 3:18 AM CDT | Mesoscale Discussion | SPC | Allen, Butler, Chase, Chautauqua, Coffey, Cowley and 15 more | 87 min |
| Aug 8, 3:00 PM CDT | Mesoscale Discussion | SPC | Beaver, Beckham, Cimarron, Ellis, Greer, Harmon and 2 more | 60 min |
| Aug 8, 3:21 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Beckham, Cimarron, Custer, Dewey, Greer and 7 more | 9 hr |
| Aug 8, 5:02 PM CDT | Mesoscale Discussion | SPC | Blaine, Caddo, Canadian, Carter, Cleveland, Coal and 30 more | 88 min |
| Aug 8, 6:23 PM CDT | Severe Thunderstorm Watch | SPC | Atoka, Blaine, Bryan, Caddo, Canadian, Carter and 22 more | 8 hr |
| Aug 8, 6:47 PM CDT | Mesoscale Discussion | SPC | Beaver, Beckham, Cimarron, Custer, Dewey, Greer and 7 more | 88 min |
Nearby
Severe Thunderstorm Watches in Kansas, 2013Severe Thunderstorm Watches in Oklahoma, 2013Severe Thunderstorm Watches in Arkansas, 2013Every severe thunderstorm watch in 2013
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.