Alert archive / Colorado / Mesoscale Discussions in 2006

Mesoscale Discussion 1341

June 24, 200617 counties in Colorado; Albany County, Laramie County, Platte County, Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2006, 2:44 PM MDT for 17 counties in Colorado; Albany County, Laramie County, Platte County, Wyoming. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: Jun 24, 2006, 2:44 PM MDT (20:44 UTC)
Expired: Jun 24, 2006, 4:15 PM MDT
In force: 91 min
Issued by: the Storm Prediction Center

Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Custer County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Fremont County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Pueblo County, CO, Teller County, CO, Weld County, CO, Albany County, WY, Laramie County, WY, Platte County, WY

The radar

The Denver radar (KFTG), 49 km from the middle of the area, began a volume at 20:47 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.

Severe Thunderstorm Watch 555Jun 24, 4:10 PM MDT

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.7 hours before the alert went out and 162 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: 250 J/kg
Mixed-layer CIN: -304 J/kg
Mixed-layer LCL: 745 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -80 m²/s²
0-3 km storm-relative helicity: -18 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
Jun 23, 7:01 PM MDT	Mesoscale Discussion	SPC	Logan, Phillips, Sedgwick	89 min
Jun 23, 8:13 PM MDT	Severe Thunderstorm Watch	SPC	Phillips, Sedgwick	6 hr
Jun 23, 10:38 PM MDT	Mesoscale Discussion	SPC	Phillips, Sedgwick	67 min
Jun 24, 4:11 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Arapahoe, Boulder, Broomfield, Crowley, Custer and 15 more	6 hr

Nearby

Mesoscale Discussions in Colorado, 2006 Mesoscale Discussions in Wyoming, 2006 Every 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.