Alert archive / Kansas / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 360
The Storm Prediction Center issued this severe thunderstorm watch at Jun 21, 2017, 4:37 PM CDT for 27 counties in Kansas; 13 counties in Nebraska. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2017, 4:37 PM CDT (21:37 UTC)
- Expired
- Jun 21, 2017, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 40 counties
Decatur County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Norton County, KS, Phillips County, KS, Rooks County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Stanton County, KS, Stevens County, KS, Trego County, KS, Wichita County, KS, Buffalo County, NE, Custer County, NE, Dawson County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Kearney County, NE, Phelps County, NE, Red Willow County, NE, Sherman County, NE, Valley County, NE
The radar
The Goodland radar (KGLD), 141 km from the middle of the area, began a volume at 21:37 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:19 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Grant, Hamilton, Kearny | 45 min |
| Jun 21, 5:56 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Grant, Haskell, Kearny, Seward, Stevens | 64 min |
| Jun 21, 6:06 PM CDT | Severe Thunderstorm Warning | GLD | Gove | 12 min |
| Jun 21, 6:08 PM CDT | Severe Thunderstorm Warning | DDC | Grant, Morton, Stanton, Stevens | 52 min |
| Jun 21, 6:26 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Ford, Gray, Hodgeman | 49 min |
| Jun 21, 6:42 PM CDT | Severe Thunderstorm Warning | DDC | Gray, Haskell, Meade, Seward | 63 min |
| Jun 21, 6:58 PM CDT | Severe Thunderstorm Warning | DDC | Morton, Stevens | 62 min |
| Jun 21, 7:01 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Ford, Gray, Meade | 59 min |
| Jun 21, 7:38 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Meade, Seward | 48 min |
| Jun 21, 7:52 PM CDT | Severe Thunderstorm Warning | GID | Gosper, Harlan, Phelps | 38 min |
| Jun 21, 8:09 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 39 min |
| Jun 21, 8:35 PM CDT | Severe Thunderstorm Warning | GID | Furnas, Harlan | 40 min |
| Jun 21, 9:08 PM CDT | Severe Thunderstorm Warning | GID | Phillips | 52 min |
| Jun 21, 9:28 PM CDT | Severe Thunderstorm Warning | DDC | Morton, Stevens | 47 min |
| Jun 21, 9:43 PM CDT | Severe Thunderstorm Warning | GID | Furnas | 47 min |
| Jun 21, 9:48 PM CDT | Severe Thunderstorm Warning | GID | Franklin, Nuckolls, Webster | 42 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, 9.6 hours before the alert went out and 235 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
- 730 J/kg
- Mixed-layer CIN
- -454 J/kg
- Mixed-layer LCL
- 1859 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 2:30 PM CDT | Mesoscale Discussion | SPC | Decatur, Ellis, Finney, Ford, Gove, Graham and 30 more | 2 hr |
| Jun 21, 6:34 PM CDT | Mesoscale Discussion | SPC | Clark, Ellis, Finney, Ford, Gove, Graham and 19 more | 116 min |
Nearby
Severe Thunderstorm Watches in Kansas, 2017Severe Thunderstorm Watches in Nebraska, 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.