Alert archive / Colorado / Mesoscale Discussions in 2006

Mesoscale Discussion 945

May 22, 200625 counties in Colorado; 10 counties in Nebraska; 6 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at May 22, 2006, 8:23 PM MDT for 25 counties in Colorado; 10 counties in Nebraska; 6 counties in Wyoming. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued
May 22, 2006, 8:23 PM MDT (02:23 UTC)
Expired
May 22, 2006, 10:00 PM MDT
In force
97 min
Issued by
the Storm Prediction Center
All 41 counties

Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Cheyenne County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Kit Carson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Summit County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Converse County, WY, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 57 km from the middle of the area, began a volume at 02:25 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, 2.4 hours before the alert went out and 156 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 2006-05-23Temperature 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 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 2006-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2598 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 22, 6:10 PM MDTMesoscale DiscussionSPCBent, Costilla, Crowley, Custer, Fremont, Huerfano and 3 more2 hr
May 22, 8:37 PM MDTMesoscale DiscussionSPCBaca, Bent, Costilla, Crowley, Custer, Fremont and 8 more53 min
May 22, 9:08 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 17 more6 hr
May 22, 10:32 PM MDTMesoscale DiscussionSPCBaca, Bent, Cheyenne, Kiowa, Kit Carson, Phillips and 4 more88 min
May 23, 1:05 AM MDTMesoscale DiscussionSPCKit Carson, Logan, Phillips, Sedgwick, Yuma85 min
May 23, 11:12 AM MDTMesoscale DiscussionSPCAdams, Antelope, Boone, Boyd, Buffalo, Butler and 36 more93 min
May 23, 1:10 PM MDTTornado WatchSPCAntelope, Blaine, Boone, Boyd, Brown, Butler and 22 more7 hr
May 23, 2:00 PM MDTMesoscale DiscussionSPCAdams, Buffalo, Clay, Dawson, Fillmore, Franklin and 14 more2 hr
May 23, 2:30 PM MDTSevere Thunderstorm WatchSPCAdams, Buffalo, Clay, Dawson, Fillmore, Franklin and 16 more5 hr
May 23, 4:40 PM MDTMesoscale DiscussionSPCAntelope, Boone, Butler, Cedar, Colfax, Cuming and 17 more2 hr
May 23, 5:40 PM MDTSevere Thunderstorm WatchSPCDakota, Dixon6 hr

Nearby

Mesoscale Discussions in Colorado, 2006Mesoscale Discussions in Nebraska, 2006Mesoscale Discussions in Wyoming, 2006Every mesoscale discussion in 2006

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.