Alert archive / Colorado / Mesoscale Discussions in 2004

Mesoscale Discussion 1767

July 22, 20048 counties in Colorado; 5 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jul 22, 2004, 5:34 PM MDT for 8 counties in Colorado; 5 counties in Kansas. It was in force for 26 min.

The area

The outline as issued.

The facts

Issued: Jul 22, 2004, 5:34 PM MDT (23:34 UTC)
Expired: Jul 22, 2004, 6:00 PM MDT
In force: 26 min
Issued by: the Storm Prediction Center

Counties Bent County, CO, Cheyenne County, CO, Crowley County, CO, Kiowa County, CO, Kit Carson County, CO, Otero County, CO, Prowers County, CO, Yuma County, CO, Cheyenne County, KS, Greeley County, KS, Hamilton County, KS, Sherman County, KS, Wallace County, KS

The radar

The Pueblo radar (KPUX), 105 km from the middle of the area, began a volume at 23:36 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, 11.6 hours before the alert went out and 124 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 12 J/kg
Mixed-layer CIN: -330 J/kg
Mixed-layer LCL: 2129 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 9 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.

Issued	Product	Office	Counties	Lasted
Jul 22, 11:29 AM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 5 more	2 hr
Jul 22, 1:35 PM MDT	Tornado Watch	SPC	Adams, Arapahoe, Bent, Cheyenne, Crowley, Elbert and 9 more	4 hr
Jul 22, 2:48 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Bent, Cheyenne, Crowley, Elbert and 9 more	87 min
Jul 22, 4:05 PM MDT	Mesoscale Discussion	SPC	Barton, Clark, Edwards, Ellsworth, Ford, Grant and 18 more	85 min
Jul 22, 5:08 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Coffey, Douglas, Franklin and 6 more	97 min

Nearby

Mesoscale Discussions in Colorado, 2004 Mesoscale Discussions in Kansas, 2004 Every 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.