Alert archive / Colorado / Mesoscale Discussions in 2004

Mesoscale Discussion 1163

June 9, 20044 states

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2004, 4:42 PM MDT for 4 states. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued
Jun 9, 2004, 4:42 PM MDT (22:42 UTC)
Expired
Jun 9, 2004, 6:15 PM MDT
In force
93 min
Issued by
the Storm Prediction Center
All 39 counties

Adams County, CO, Arapahoe County, CO, Baca County, CO, Bent County, CO, Boulder County, CO, Broomfield County, CO, Cheyenne County, CO, Crowley County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Kiowa County, CO, Kit Carson County, CO, Larimer County, CO, Las Animas County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Washington County, CO, Weld County, CO, Morton County, KS, Stanton County, KS, Banner County, NE, Kimball County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Converse County, WY, Goshen County, WY, Laramie County, WY, Natrona County, WY, Niobrara County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 75 km from the middle of the area, began a volume at 22:44 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 nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.7 hours before the alert went out and 120 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 12:00Z on 2004-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2004-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
25 J/kg
Mixed-layer CIN
-342 J/kg
Mixed-layer LCL
1625 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
105 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
Jun 8, 7:20 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma115 min
Jun 8, 7:55 PM MDTSevere Thunderstorm WatchSPCKit Carson, Yuma5 hr
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, 12:03 AM MDTMesoscale DiscussionSPCCheyenne, Rawlins, Sherman27 min
Jun 9, 4:54 PM MDTMesoscale DiscussionSPCChautauqua, Cherokee, Labette, Montgomery, Wilson96 min

Nearby

Mesoscale Discussions in Colorado, 2004Mesoscale Discussions in Wyoming, 2004Mesoscale Discussions in Nebraska, 2004Every mesoscale discussion 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.