Alert archive / Kansas / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 494
The Storm Prediction Center issued this severe thunderstorm watch at Oct 6, 2017, 2:31 PM MDT for 6 counties in Colorado; 34 counties in Kansas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 6, 2017, 2:31 PM MDT (20:31 UTC)
- Expired
- Oct 6, 2017, 10:00 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 65 kt
All 40 counties
Baca County, CO, Bent County, CO, Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Prowers County, CO, Barber County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Rush County, KS, Scott County, KS, Seward County, KS, Sherman County, KS, Stafford County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS
The radar
The Goodland radar (KGLD), 116 km from the middle of the area, began a volume at 20:32 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 70%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 2:56 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 64 min |
| Oct 6, 3:05 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Gray, Hodgeman | 25 min |
| Oct 6, 3:19 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Hodgeman, Lane, Ness | 39 min |
| Oct 6, 3:27 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Prowers | 20 min |
| Oct 6, 3:29 PM MDT | Severe Thunderstorm Warning | DDC | Grant, Hamilton, Kearny, Stanton | 61 min |
| Oct 6, 3:29 PM MDT | Severe Thunderstorm Warning | DDC | Hodgeman | 46 min |
| Oct 6, 3:36 PM MDT | Severe Thunderstorm Warning | GLD | Greeley, Wallace | 54 min |
| Oct 6, 3:57 PM MDT | Severe Thunderstorm Warning | DDC | Ness, Trego | 36 min |
| Oct 6, 4:00 PM MDT | Severe Thunderstorm Warning | DDC | Grant, Morton, Stanton, Stevens | 36 min |
| Oct 6, 4:06 PM MDT | Severe Thunderstorm Warning | DDC | Edwards, Hodgeman, Pawnee | 34 min |
| Oct 6, 4:06 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Kearny | 54 min |
| Oct 6, 4:08 PM MDT | Severe Thunderstorm Warning | GLD | Gove, Graham | 26 min |
| Oct 6, 4:36 PM MDT | Severe Thunderstorm Warning | DDC | Pawnee, Stafford | 54 min |
| Oct 6, 4:42 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Gray, Hodgeman, Lane, Ness | 48 min |
| Oct 6, 4:58 PM MDT | Severe Thunderstorm Warning | DDC | Hodgeman, Ness, Pawnee, Rush | 33 min |
| Oct 6, 5:22 PM MDT | Severe Thunderstorm Warning | DDC | Edwards, Finney, Ford, Gray, Hodgeman, Pawnee | 53 min |
| Oct 6, 5:30 PM MDT | Severe Thunderstorm Warning | DDC | Rush | 45 min |
| Oct 6, 5:47 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Grant, Haskell, Kearny | 42 min |
| Oct 6, 6:11 PM MDT | Severe Thunderstorm Warning | DDC | Edwards, Ford, Hodgeman, Kiowa, Ness, Pawnee and 1 more | 49 min |
| Oct 6, 7:00 PM MDT | Severe Thunderstorm Warning | DDC | Edwards, Pawnee, Pratt, Stafford | 60 min |
| Oct 6, 9:15 PM MDT | Severe Thunderstorm Warning | DDC | Barber | 19 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
Dodge City, (KDDC), launched 12:00Z, 8.5 hours before the alert went out and 142 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
- 453 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 575 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 174 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 1:55 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Kiowa, Prowers | 2 hr |
| Oct 6, 5:06 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Kiowa, Kit Carson, Prowers | 84 min |
| Oct 6, 2:14 PM MDT | Mesoscale Discussion | SPC | Cloud, Jewell, Mitchell, Republic, Washington | 91 min |
| Oct 6, 2:47 PM MDT | Severe Thunderstorm Watch | SPC | Barton, Brown, Clay, Cloud, Dickinson, Ellsworth and 20 more | 7 hr |
| Oct 6, 5:50 PM MDT | Mesoscale Discussion | SPC | Chase, Clay, Cloud, Dickinson, Ellsworth, Geary and 17 more | 85 min |
Nearby
Severe Thunderstorm Watches in Kansas, 2017Severe Thunderstorm Watches in Colorado, 2017Every severe thunderstorm watch in 2017
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.