Alert archive / Kansas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 587

July 7, 200422 counties in Kansas; 22 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2004, 2:25 PM CDT for 22 counties in Kansas; 22 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 7, 2004, 2:25 PM CDT (19:25 UTC)
Expired
Jul 7, 2004, 8:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 44 counties

Barton County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellsworth County, KS, Geary County, KS, Jewell County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Republic County, KS, Rice County, KS, Rooks County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hall County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Nuckolls County, NE, Phelps County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 21 km from the middle of the area, began a volume at 19:27 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

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

IssuedProductOfficeCountiesLasted
Jul 7, 3:03 PM CDTSevere Thunderstorm WarningTOPCloud, Republic57 min
Jul 7, 3:12 PM CDTTornado WarningGIDJewell, Mitchell63 min
Jul 7, 3:20 PM CDTSevere Thunderstorm WarningGIDNuckolls, Webster55 min
Jul 7, 3:43 PM CDTSevere Thunderstorm WarningGIDJewell, Smith62 min
Jul 7, 3:50 PM CDTSevere Thunderstorm WarningTOPOttawa55 min
Jul 7, 3:58 PM CDTTornado WarningTOPCloud, Ottawa47 min
Jul 7, 4:09 PM CDTFlash Flood WarningGIDJewell3 hr
Jul 7, 4:39 PM CDTSevere Thunderstorm WarningICTEllsworth, Lincoln66 min
Jul 7, 4:43 PM CDTSevere Thunderstorm WarningGIDJewell, Mitchell, Osborne62 min
Jul 7, 4:43 PM CDTSevere Thunderstorm WarningTOPOttawa47 min
Jul 7, 4:50 PM CDTFlash Flood WarningGIDMitchell6 hr
Jul 7, 5:06 PM CDTSevere Thunderstorm WarningICTRussell54 min
Jul 7, 5:07 PM CDTSevere Thunderstorm WarningGIDSmith68 min
Jul 7, 5:27 PM CDTSevere Thunderstorm WarningTOPCloud, Ottawa48 min
Jul 7, 5:29 PM CDTTornado WarningGIDSmith61 min
Jul 7, 5:38 PM CDTFlash Flood WarningGIDOsborne6 hr
Jul 7, 5:38 PM CDTTornado WarningICTLincoln67 min
Jul 7, 5:46 PM CDTSevere Thunderstorm WarningGIDMitchell, Osborne59 min
Jul 7, 5:55 PM CDTSevere Thunderstorm WarningICTRussell65 min
Jul 7, 5:59 PM CDTSevere Thunderstorm WarningGIDRooks31 min
Jul 7, 6:04 PM CDTSevere Thunderstorm WarningGIDPhillips56 min
Jul 7, 6:11 PM CDTTornado WarningICTRussell64 min
Jul 7, 6:19 PM CDTTornado WarningGIDPhillips41 min
Jul 7, 6:26 PM CDTTornado WarningGIDOsborne49 min
Jul 7, 6:30 PM CDTTornado WarningGIDSmith45 min
Jul 7, 6:31 PM CDTSevere Thunderstorm WarningICTLincoln59 min
Jul 7, 6:43 PM CDTTornado WarningGIDRooks47 min
Jul 7, 7:00 PM CDTSevere Thunderstorm WarningGIDPhillips45 min
Jul 7, 7:10 PM CDTTornado WarningICTRussell50 min
Jul 7, 7:14 PM CDTFlash Flood WarningGIDRooks6 hr
Jul 7, 7:15 PM CDTSevere Thunderstorm WarningGIDOsborne60 min
Jul 7, 7:36 PM CDTTornado WarningGIDRooks54 min
Jul 7, 7:52 PM CDTTornado WarningICTRussell53 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.4 hours before the alert went out and 184 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 2004-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 70 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 2004-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 298 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
70 J/kg
Mixed-layer CIN
-302 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
298 m²/s²
0-3 km storm-relative helicity
374 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 12:19 PM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Doniphan, Geary and 10 more56 min
Jul 7, 2:06 PM CDTMesoscale DiscussionSPCBarton, Chase, Cloud, Dickinson, Ellsworth, Jewell and 13 more24 min
Jul 7, 6:15 PM CDTMesoscale DiscussionSPCBarber, Barton, Butler, Chase, Chautauqua, Clay and 36 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.