Alert archive / Kansas / Severe Thunderstorm Watches in 2020
Severe Thunderstorm Watch 404
The Storm Prediction Center issued this severe thunderstorm watch at Jul 29, 2020, 2:09 PM MDT for 9 counties in Colorado; 39 counties in Kansas; 13 counties in Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2020, 2:09 PM MDT (20:09 UTC)
- Expired
- Jul 29, 2020, 9:00 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 61 counties
Baca County, CO, Bent County, CO, Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Phillips County, CO, Prowers County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Clark County, KS, Comanche County, KS, Decatur County, KS, Edwards County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham 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, Norton County, KS, Pawnee County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Chase County, NE, Dawson County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Lincoln County, NE, Perkins County, NE, Red Willow County, NE
The radar
The Goodland radar (KGLD), 79 km from the middle of the area, began a volume at 20:09 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
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 2:34 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 26 min |
| Jul 29, 2:50 PM MDT | Severe Thunderstorm Warning | GLD | Logan | 55 min |
| Jul 29, 3:11 PM MDT | Severe Thunderstorm Warning | DDC | Scott | 49 min |
| Jul 29, 3:31 PM MDT | Flash Flood Warning | GLD | Decatur, Norton | 3 hr |
| Jul 29, 3:57 PM MDT | Severe Thunderstorm Warning | DDC | Scott | 48 min |
| Jul 29, 4:22 PM MDT | Severe Thunderstorm Warning | GLD | Wichita | 53 min |
| Jul 29, 4:38 PM MDT | Severe Thunderstorm Warning | GLD | Graham, Sheridan | 29 min |
| Jul 29, 4:43 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Scott | 47 min |
| Jul 29, 4:51 PM MDT | Severe Thunderstorm Warning | GLD | Norton | 18 min |
| Jul 29, 4:59 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 31 min |
| Jul 29, 5:01 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Kearny | 44 min |
| Jul 29, 5:25 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Gray | 50 min |
| Jul 29, 5:30 PM MDT | Severe Thunderstorm Warning | GLD | Red Willow | 45 min |
| Jul 29, 5:58 PM MDT | Severe Thunderstorm Warning | GID | Furnas | 32 min |
| Jul 29, 6:03 PM MDT | Severe Thunderstorm Warning | DDC | Gray, Haskell, Meade | 42 min |
| Jul 29, 6:33 PM MDT | Severe Thunderstorm Warning | DDC | Clark, Ford, Gray, Meade | 26 min |
| Jul 29, 7:04 PM MDT | Severe Thunderstorm Warning | GLD | Graham, Norton | 56 min |
| Jul 29, 7:07 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 53 min |
| Jul 29, 8:37 PM MDT | Severe Thunderstorm Warning | LBF | Custer, Lincoln | 38 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, 8.2 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
- 810 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 862 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 32 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 |
|---|---|---|---|---|
| Jul 29, 1:28 PM MDT | Mesoscale Discussion | SPC | Baca, Cheyenne, Kiowa, Kit Carson, Prowers | 92 min |
| Jul 29, 5:09 PM MDT | Mesoscale Discussion | SPC | Clark, Decatur, Edwards, Ellis, Finney, Ford and 21 more | 96 min |
Nearby
Severe Thunderstorm Watches in Kansas, 2020Severe Thunderstorm Watches in Nebraska, 2020Severe Thunderstorm Watches in Colorado, 2020Every severe thunderstorm watch in 2020
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.