Alert archive / Kansas / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 692

September 28, 200724 counties in Kansas; Dundy County, Hitchcock County, Red Willow County, Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Sep 28, 2007, 3:03 PM CDT for 24 counties in Kansas; Dundy County, Hitchcock County, Red Willow County, Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Sep 28, 2007, 3:03 PM CDT (20:03 UTC)
Expired
Sep 28, 2007, 9:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 27 counties

Cheyenne County, KS, Decatur County, KS, Finney County, KS, Gove County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Rawlins County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Dundy County, NE, Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 54 km from the middle of the area, began a volume at 20:07 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
5%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Sep 28, 3:08 PM CDTSevere Thunderstorm WarningGLDGreeley52 min
Sep 28, 3:52 PM CDTSevere Thunderstorm WarningGLDGreeley, Wallace23 min
Sep 28, 4:30 PM CDTSevere Thunderstorm WarningGLDGreeley, Wallace60 min
Sep 28, 4:35 PM CDTSevere Thunderstorm WarningGLDLogan55 min
Sep 28, 5:27 PM CDTSevere Thunderstorm WarningGLDLogan, Thomas, Wallace63 min
Sep 28, 5:49 PM CDTSevere Thunderstorm WarningGLDWallace41 min
Sep 28, 6:02 PM CDTFlash Flood WarningGLDLogan3 hr
Sep 28, 6:14 PM CDTTornado WarningGLDGove, Logan31 min
Sep 28, 6:19 PM CDTSevere Thunderstorm WarningDDCFinney, Gray, Hodgeman41 min
Sep 28, 6:44 PM CDTTornado WarningGLDGove, Logan46 min
Sep 28, 7:25 PM CDTTornado WarningGLDGove58 min
Sep 28, 7:30 PM CDTSevere Thunderstorm WarningGLDWichita25 min
Sep 28, 8:01 PM CDTSevere Thunderstorm WarningDDCScott44 min
Sep 28, 8:04 PM CDTSevere Thunderstorm WarningGLDLogan16 min
Sep 28, 8:23 PM CDTSevere Thunderstorm WarningDDCLane37 min
Sep 28, 8:42 PM CDTSevere Thunderstorm WarningDDCLane, Scott48 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, 8.1 hours before the alert went out and 183 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, Dodge City, at 12:00Z on 2007-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1886 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, Dodge City, at 12:00Z on 2007-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
1886 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
720 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 28, 2:01 PM CDTMesoscale DiscussionSPCCheyenne, Finney, Grant, Gray, Greeley, Hamilton and 14 more89 min
Sep 28, 5:55 PM CDTSevere Thunderstorm WatchSPCArthur, Blaine, Chase, Custer, Frontier, Grant and 9 more6 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2007Severe Thunderstorm Watches in Nebraska, 2007Every severe thunderstorm watch in 2007

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.