Alert archive / Wyoming / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 178

May 10, 2004Scotts Bluff County, Nebraska; 10 counties in Wyoming

The Storm Prediction Center issued this severe thunderstorm watch at May 10, 2004, 2:35 PM MDT for Scotts Bluff County, Nebraska; 10 counties in Wyoming. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 10, 2004, 2:35 PM MDT (20:35 UTC)
Expired
May 10, 2004, 8:00 PM MDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Scotts Bluff County, NE, Albany County, WY, Campbell County, WY, Converse County, WY, Crook County, WY, Goshen County, WY, Johnson County, WY, Niobrara County, WY, Platte County, WY, Sheridan County, WY, Weston County, WY

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 10, 3:45 PM MDTSevere Thunderstorm WarningCYSPlatte60 min
May 10, 4:45 PM MDTSevere Thunderstorm WarningCYSPlatte30 min
May 10, 5:03 PM MDTSevere Thunderstorm WarningCYSConverse57 min
May 10, 5:10 PM MDTSevere Thunderstorm WarningUNRCampbell50 min
May 10, 5:14 PM MDTSevere Thunderstorm WarningCYSPlatte61 min
May 10, 5:35 PM MDTSevere Thunderstorm WarningCYSNiobrara55 min
May 10, 6:06 PM MDTSevere Thunderstorm WarningCYSConverse, Laramie54 min
May 10, 6:30 PM MDTSevere Thunderstorm WarningCYSNiobrara60 min
May 10, 7:28 PM MDTSevere Thunderstorm WarningCYSNiobrara62 min
May 10, 7:35 PM MDTSevere Thunderstorm WarningRIWJohnson25 min
May 10, 7:39 PM MDTSevere Thunderstorm WarningRIWJohnson21 min
May 10, 7:46 PM MDTSevere Thunderstorm WarningBYZSheridan59 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

Rapid City, SD (KUNR), launched 12:00Z, 8.6 hours before the alert went out and 190 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, Rapid City, SD at 12:00Z on 2004-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Rapid City, SD at 12:00Z on 2004-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1496 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
177 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 9, 6:55 PM MDTSevere Thunderstorm WatchSPCAdams, Antelope, Boone, Boyd, Buffalo, Cedar and 38 more4 hr
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, 1:04 PM MDTMesoscale DiscussionSPCBanner, Kimball, Scotts Bluff, Sioux2 hr
May 10, 4:43 PM MDTMesoscale DiscussionSPCCampbell, Converse, Crook, Goshen, Johnson, Niobrara and 3 more2 hr

Nearby

Severe Thunderstorm Watches in Wyoming, 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.