Alert archive / Kansas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 720

August 8, 200434 counties in Kansas; 17 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Aug 8, 2004, 1:45 PM CDT for 34 counties in Kansas; 17 counties in Nebraska. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Aug 8, 2004, 1:45 PM CDT (18:45 UTC)
Expired
Aug 8, 2004, 9:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 51 counties

Barton County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellis County, KS, Ellsworth County, KS, Geary County, KS, Graham County, KS, Hodgeman County, KS, Jewell County, KS, Lincoln County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Nemaha County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Phillips County, KS, Pottawatomie County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Trego County, KS, Wabaunsee County, KS, Washington County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gage County, NE, Harlan County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Saline County, NE, Thayer County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 74 km from the middle of the area, began a volume at 18:47 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

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

IssuedProductOfficeCountiesLasted
Aug 8, 3:39 PM CDTSevere Thunderstorm WarningOAXSaline36 min
Aug 8, 3:57 PM CDTSevere Thunderstorm WarningGIDNuckolls63 min
Aug 8, 3:58 PM CDTSevere Thunderstorm WarningOAXGage62 min
Aug 8, 4:10 PM CDTSevere Thunderstorm WarningOAXJohnson, Otoe50 min
Aug 8, 4:13 PM CDTSevere Thunderstorm WarningOAXJefferson32 min
Aug 8, 4:34 PM CDTSevere Thunderstorm WarningTOPRepublic56 min
Aug 8, 4:43 PM CDTSevere Thunderstorm WarningOAXJefferson47 min
Aug 8, 4:57 PM CDTSevere Thunderstorm WarningOAXGage63 min
Aug 8, 4:59 PM CDTSevere Thunderstorm WarningOAXJohnson31 min
Aug 8, 5:03 PM CDTSevere Thunderstorm WarningTOPWashington57 min
Aug 8, 5:16 PM CDTSevere Thunderstorm WarningOAXPawnee59 min
Aug 8, 5:29 PM CDTSevere Thunderstorm WarningTOPRepublic46 min
Aug 8, 5:39 PM CDTSevere Thunderstorm WarningGIDJewell66 min
Aug 8, 5:45 PM CDTSevere Thunderstorm WarningTOPWashington45 min
Aug 8, 5:57 PM CDTSevere Thunderstorm WarningTOPCloud63 min
Aug 8, 6:08 PM CDTSevere Thunderstorm WarningOAXGage37 min
Aug 8, 6:09 PM CDTSevere Thunderstorm WarningTOPClay, Riley51 min
Aug 8, 6:12 PM CDTSevere Thunderstorm WarningGIDMitchell63 min
Aug 8, 6:15 PM CDTSevere Thunderstorm WarningTOPRepublic30 min
Aug 8, 6:27 PM CDTSevere Thunderstorm WarningOAXJohnson48 min
Aug 8, 6:41 PM CDTSevere Thunderstorm WarningTOPMarshall64 min
Aug 8, 6:59 PM CDTSevere Thunderstorm WarningTOPClay, Cloud, Ottawa, Riley61 min
Aug 8, 7:25 PM CDTSevere Thunderstorm WarningTOPDickinson, Geary65 min
Aug 8, 7:42 PM CDTSevere Thunderstorm WarningTOPPottawatomie48 min
Aug 8, 7:59 PM CDTSevere Thunderstorm WarningTOPRiley, Wabaunsee61 min
Aug 8, 8:26 PM CDTSevere Thunderstorm WarningICTLincoln64 min
Aug 8, 8:28 PM CDTSevere Thunderstorm WarningTOPPottawatomie32 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

Topeka, KS (KTOP), launched 12:00Z, 6.8 hours before the alert went out and 247 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, Topeka, KS at 12:00Z on 2004-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Topeka, KS at 12:00Z on 2004-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.19395878Sfc1 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
6 J/kg
Mixed-layer CIN
-313 J/kg
Mixed-layer LCL
1104 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 1:05 PM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Decatur, Dickinson and 33 more55 min
Aug 8, 3:00 AM CDTMesoscale DiscussionSPCAntelope, Blaine, Boone, Brown, Buffalo, Butler and 25 more90 min

Nearby

Severe Thunderstorm Watches in Kansas, 2004Severe Thunderstorm Watches in Nebraska, 2004Every severe thunderstorm watch in 2004

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.