Alert archive / Kansas / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 638

August 26, 20026 counties in Colorado; 12 counties in Kansas; 9 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Aug 26, 2002, 1:05 PM MDT for 6 counties in Colorado; 12 counties in Kansas; 9 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Aug 26, 2002, 1:05 PM MDT (19:05 UTC)
Expired
Aug 26, 2002, 6:00 PM MDT
In force
5 hr
Issued by
the Storm Prediction Center
All 27 counties

Cheyenne County, CO, Kit Carson County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Gove County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Chase County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Perkins County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 104 km from the middle of the area, began a volume at 19:09 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.

Warnings issued inside it

21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Aug 26, 1:21 PM MDTSevere Thunderstorm WarningGLDHitchcock54 min
Aug 26, 1:42 PM MDTSevere Thunderstorm WarningGLDDundy63 min
Aug 26, 1:48 PM MDTSevere Thunderstorm WarningGLDRawlins57 min
Aug 26, 2:01 PM MDTTornado WarningGLDDundy29 min
Aug 26, 2:13 PM MDTTornado WarningGLDCheyenne47 min
Aug 26, 2:14 PM MDTSevere Thunderstorm WarningGLDHitchcock61 min
Aug 26, 2:32 PM MDTFlash Flood WarningGLDDundy, Hitchcock6 hr
Aug 26, 2:44 PM MDTSevere Thunderstorm WarningGLDRawlins61 min
Aug 26, 3:01 PM MDTSevere Thunderstorm WarningGLDCheyenne59 min
Aug 26, 3:21 PM MDTTornado WarningGLDCheyenne39 min
Aug 26, 3:55 PM MDTTornado WarningGLDRawlins50 min
Aug 26, 4:00 PM MDTSevere Thunderstorm WarningGLDCheyenne60 min
Aug 26, 4:07 PM MDTFlash Flood WarningGLDCheyenne, Rawlins4 hr
Aug 26, 4:31 PM MDTSevere Thunderstorm WarningGLDSherman59 min
Aug 26, 4:37 PM MDTSevere Thunderstorm WarningGLDThomas53 min
Aug 26, 5:05 PM MDTSevere Thunderstorm WarningGLDKit Carson55 min
Aug 26, 5:15 PM MDTSevere Thunderstorm WarningGLDCheyenne60 min
Aug 26, 5:20 PM MDTSevere Thunderstorm WarningGLDWallace55 min
Aug 26, 5:34 PM MDTSevere Thunderstorm WarningGLDThomas41 min
Aug 26, 5:49 PM MDTSevere Thunderstorm WarningGLDLogan56 min
Aug 26, 5:55 PM MDTFlash Flood WarningGLDThomas4 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.1 hours before the alert went out and 115 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.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2002-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1929 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2002-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1929 J/kg
Mixed-layer CIN
-185 J/kg
Mixed-layer LCL
1191 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 26, 4:30 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Cheyenne, Kiowa, Kit Carson, Lincoln and 7 more6 hr
Aug 26, 12:15 PM MDTSevere Thunderstorm WatchSPCArthur, Box Butte, Cherry, Cheyenne, Dawes, Garden and 8 more6 hr
Aug 26, 5:10 PM MDTSevere Thunderstorm WatchSPCArthur, Banner, Box Butte, Cherry, Cheyenne, Dawes and 11 more5 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2002Severe Thunderstorm Watches in Nebraska, 2002Severe Thunderstorm Watches in Colorado, 2002Every severe thunderstorm watch in 2002

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.