Alert archive / Kansas / Tornado Watches in 1997
Tornado Watch 709
The Storm Prediction Center issued this tornado watch at Aug 21, 1997, 6:00 PM MDT for Phillips County, Sedgwick County, Yuma County, Colorado; 17 counties in Kansas; 14 counties in Nebraska. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 21, 1997, 6:00 PM MDT (00:00 UTC)
- Expired
- Aug 22, 1997, 12:00 AM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 34 counties
Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Gove County, KS, Graham County, KS, Greeley County, KS, Lane County, KS, Logan County, KS, Ness County, KS, Norton County, KS, Rawlins County, KS, Scott County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Chase County, NE, Custer 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), 31 km from the middle of the area, began a volume at 00:05 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.
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 |
|---|---|---|---|---|
| Aug 21, 6:06 PM MDT | Tornado Warning | LBF | Perkins | 49 min |
| Aug 21, 6:24 PM MDT | Tornado Warning | LBF | Chase | 46 min |
| Aug 21, 7:11 PM MDT | Tornado Warning | LBF | Chase | 44 min |
| Aug 21, 7:13 PM MDT | Tornado Warning | GLD | Dundy, Hitchcock | 47 min |
| Aug 21, 7:15 PM MDT | Tornado Warning | LBF | Hayes | 65 min |
| Aug 21, 7:46 PM MDT | Severe Thunderstorm Warning | GLD | Red Willow | 49 min |
| Aug 21, 7:57 PM MDT | Severe Thunderstorm Warning | GLD | Dundy, Hitchcock | 48 min |
| Aug 21, 8:14 PM MDT | Severe Thunderstorm Warning | GLD | Decatur, Rawlins | 61 min |
| Aug 21, 8:19 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 61 min |
| Aug 21, 8:46 PM MDT | Severe Thunderstorm Warning | GLD | Sheridan | 49 min |
| Aug 21, 8:48 PM MDT | Tornado Warning | LBF | Lincoln | 32 min |
| Aug 21, 9:00 PM MDT | Tornado Warning | LBF | Frontier | 65 min |
| Aug 21, 9:21 PM MDT | Severe Thunderstorm Warning | DDC | Trego | 59 min |
| Aug 21, 9:41 PM MDT | Severe Thunderstorm Warning | GLD | Graham | 49 min |
| Aug 21, 10:01 PM MDT | Severe Thunderstorm Warning | DDC | Ness, Rush | 59 min |
| Aug 21, 11:20 PM MDT | Severe Thunderstorm Warning | DDC | Scott | 50 min |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 0.0 hours before the alert went out and 162 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
- 12 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 2758 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 252 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 8:45 PM MDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Clay, Cloud, Comanche, Dickinson and 29 more | 6 hr |
| Aug 21, 10:45 PM MDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Clark, Comanche, Cowley, Edwards and 31 more | 4 hr |
Nearby
Tornado Watches in Kansas, 1997Tornado Watches in Nebraska, 1997Tornado Watches in Colorado, 1997Every tornado watch in 1997
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.