Alert archive / Nebraska / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 412

June 8, 2004Kit Carson County, Yuma County, Colorado; Cheyenne County, Rawlins County, Sherman County, Kansas; 10 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jun 8, 2004, 7:55 PM MDT for Kit Carson County, Yuma County, Colorado; Cheyenne County, Rawlins County, Sherman County, Kansas; 10 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 8, 2004, 7:55 PM MDT (01:55 UTC)
Expired
Jun 9, 2004, 1:00 AM MDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Kit Carson County, CO, Yuma County, CO, Cheyenne County, KS, Rawlins County, KS, Sherman County, KS, Chase County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Lincoln County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 01:56 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

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

IssuedProductOfficeCountiesLasted
Jun 8, 7:59 PM MDTSevere Thunderstorm WarningGLDHitchcock61 min
Jun 8, 8:45 PM MDTSevere Thunderstorm WarningGLDCheyenne60 min
Jun 8, 9:01 PM MDTSevere Thunderstorm WarningGLDCheyenne59 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 00:00Z, 1.9 hours before the alert went out and 132 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 00:00Z on 2004-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 711 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 00:00Z on 2004-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 329 square meters per square second.1939Sfc1 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
711 J/kg
Mixed-layer CIN
-427 J/kg
Mixed-layer LCL
1960 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
329 m²/s²
0-3 km storm-relative helicity
439 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.8

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 7:20 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma115 min
Jun 8, 10:58 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma2 hr
Jun 9, 12:42 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 14 more93 min
Jun 9, 1:40 PM MDTTornado WatchSPCAdams, Arapahoe, Baca, Bent, Boulder, Broomfield and 21 more6 hr
Jun 9, 4:42 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Boulder, Broomfield and 20 more93 min
Jun 9, 12:03 AM MDTMesoscale DiscussionSPCCheyenne, Rawlins, Sherman27 min
Jun 9, 4:54 PM MDTMesoscale DiscussionSPCChautauqua, Cherokee, Labette, Montgomery, Wilson96 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2004Severe Thunderstorm Watches in Kansas, 2004Severe Thunderstorm Watches in Colorado, 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.