Alert archive / Nebraska / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 177

May 9, 20045 states

The Storm Prediction Center issued this severe thunderstorm watch at May 9, 2004, 6:55 PM MDT for 5 states. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 9, 2004, 6:55 PM MDT (00:55 UTC)
Expired
May 9, 2004, 11:00 PM MDT
In force
4 hr
Issued by
the Storm Prediction Center
All 69 counties

Kit Carson County, CO, Cherokee County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cheyenne County, KS, Decatur County, KS, Graham County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Adams County, NE, Antelope County, NE, Boone County, NE, Boyd County, NE, Buffalo County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dakota County, NE, Dawson County, NE, Dixon County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Knox County, NE, Lincoln County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Red Willow County, NE, Sherman County, NE, Stanton County, NE, Thurston County, NE, Valley County, NE, Wayne County, NE, Wheeler County, NE, Bon Homme County, SD, Clay County, SD, Hutchinson County, SD, Lincoln County, SD, Turner County, SD, Union County, SD, Yankton County, SD

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 9, 6:55 PM MDTSevere Thunderstorm WarningFSDClay35 min
May 9, 6:57 PM MDTFlash Flood WarningFSDClay, Union63 min
May 9, 6:59 PM MDTSevere Thunderstorm WarningOAXCedar61 min
May 9, 7:02 PM MDTTornado WarningOAXKnox28 min
May 9, 7:08 PM MDTSevere Thunderstorm WarningFSDYankton22 min
May 9, 7:11 PM MDTSevere Thunderstorm WarningLBFLincoln49 min
May 9, 7:13 PM MDTSevere Thunderstorm WarningFSDUnion32 min
May 9, 7:14 PM MDTSevere Thunderstorm WarningLBFCuster46 min
May 9, 7:16 PM MDTSevere Thunderstorm WarningFSDDixon29 min
May 9, 7:30 PM MDTSevere Thunderstorm WarningFSDClay30 min
May 9, 7:31 PM MDTSevere Thunderstorm WarningOAXKnox44 min
May 9, 7:33 PM MDTSevere Thunderstorm WarningFSDSioux27 min
May 9, 7:34 PM MDTSevere Thunderstorm WarningFSDClay26 min
May 9, 7:46 PM MDTSevere Thunderstorm WarningFSDUnion29 min
May 9, 7:59 PM MDTSevere Thunderstorm WarningFSDSioux31 min
May 9, 8:01 PM MDTSevere Thunderstorm WarningLBFCuster59 min
May 9, 8:08 PM MDTFlash Flood WarningFSDClay, Union82 min
May 9, 8:30 PM MDTSevere Thunderstorm WarningFSDClay30 min
May 9, 8:55 PM MDTSevere Thunderstorm WarningFSDPlymouth35 min
May 9, 9:09 PM MDTSevere Thunderstorm WarningFSDSioux36 min
May 9, 10:13 PM MDTSevere Thunderstorm WarningGIDHall, Hamilton, Howard, Merrick47 min
May 9, 10:19 PM MDTSevere Thunderstorm WarningGIDGosper41 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, 0.9 hours before the alert went out and 70 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 2004-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1286 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 2004-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
1286 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
2678 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
17 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
May 10, 1:04 PM MDTMesoscale DiscussionSPCMorgan, Weld2 hr
May 10, 3:00 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Bent, Cheyenne, Crowley, Denver and 16 more5 hr
May 10, 5:10 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Cheyenne, Crowley, Denver and 16 more95 min
May 9, 7:09 PM MDTMesoscale DiscussionSPCDickinson, Emmet, Howard, Lyon, Mitchell, Osceola and 2 more2 hr
May 10, 10:05 AM MDTMesoscale DiscussionSPCCedar, Clinton, Dubuque, Jackson, Jones, Louisa and 2 more115 min
May 9, 8:43 PM MDTMesoscale DiscussionSPCAdams, Buffalo, Butler, Clay, Colfax, Cuming and 21 more2 hr
May 9, 10:28 PM MDTMesoscale DiscussionSPCAdams, Buffalo, Clay, Fillmore, Franklin, Hall and 6 more62 min
May 10, 2:35 PM MDTSevere Thunderstorm WatchSPCScotts Bluff5 hr

Nearby

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