Alert archive / Kansas / Mesoscale Discussions in 2005

Mesoscale Discussion 830

May 11, 20056 counties in Colorado; 30 counties in Kansas; Dundy County, Hitchcock County, Red Willow County, Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 11, 2005, 7:01 PM MDT for 6 counties in Colorado; 30 counties in Kansas; Dundy County, Hitchcock County, Red Willow County, Nebraska. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued
May 11, 2005, 7:01 PM MDT (01:01 UTC)
Expired
May 11, 2005, 8:00 PM MDT
In force
59 min
Issued by
the Storm Prediction Center
All 39 counties

Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Prowers County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Clark County, KS, Decatur County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Rawlins County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Dundy County, NE, Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 49 km from the middle of the area, began a volume at 01:03 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.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 1.0 hours before the alert went out and 171 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, Denver, CO at 00:00Z on 2005-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 283 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2005-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939587897Sfc1 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
283 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 11, 6:02 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick88 min
May 11, 8:26 PM MDTMesoscale DiscussionSPCDecatur, Ellis, Finney, Gove, Graham, Grant and 15 more64 min
May 11, 8:50 PM MDTTornado WatchSPCClark, Decatur, Edwards, Ellis, Finney, Ford and 28 more7 hr
May 11, 10:02 PM MDTMesoscale DiscussionSPCBrown, Marshall, Nemaha58 min
May 12, 2:44 AM MDTMesoscale DiscussionSPCClay, Cloud, Jewell, Marshall, Mitchell, Republic and 1 more61 min
May 12, 11:40 AM MDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Marshall and 3 more95 min
May 12, 12:16 PM MDTMesoscale DiscussionSPCBarber, Barton, Clark, Cloud, Comanche, Edwards and 21 more59 min
May 12, 12:35 PM MDTSevere Thunderstorm WatchSPCBarber, Barton, Clark, Clay, Cloud, Comanche and 29 more7 hr
May 12, 12:55 PM MDTTornado WatchSPCAtchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 10 more7 hr
May 12, 2:13 PM MDTMesoscale DiscussionSPCBarber, Barton, Clay, Cloud, Comanche, Dickinson and 28 more92 min
May 12, 2:48 PM MDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 10 more87 min
May 12, 4:18 PM MDTMesoscale DiscussionSPCBarber, Butler, Cowley, Harper, Harvey, Kingman and 2 more57 min
May 12, 4:55 PM MDTSevere Thunderstorm WatchSPCBarber, Butler, Chase, Coffey, Comanche, Cowley and 14 more7 hr
May 11, 10:50 PM MDTSevere Thunderstorm WatchSPCAdams, Boone, Buffalo, Butler, Cass, Clay and 30 more5 hr

Nearby

Mesoscale Discussions in Kansas, 2005Mesoscale Discussions in Colorado, 2005Mesoscale Discussions in Nebraska, 2005Every mesoscale discussion in 2005

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.