Alert archive / Colorado / Mesoscale Discussions in 2004

Mesoscale Discussion 1338

June 18, 200433 counties in Colorado; Uintah County, Utah

The Storm Prediction Center issued this mesoscale discussion at Jun 18, 2004, 3:45 PM MDT for 33 counties in Colorado; Uintah County, Utah. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued: Jun 18, 2004, 3:45 PM MDT (21:45 UTC)
Expired: Jun 18, 2004, 4:45 PM MDT
In force: 60 min
Issued by: the Storm Prediction Center

All 34 counties

Boulder County, CO, Broomfield County, CO, Chaffee County, CO, Clear Creek County, CO, Crowley County, CO, Custer County, CO, Delta County, CO, Denver County, CO, Douglas County, CO, Eagle County, CO, El Paso County, CO, Fremont County, CO, Garfield County, CO, Gilpin County, CO, Grand County, CO, Gunnison County, CO, Huerfano County, CO, Jackson County, CO, Jefferson County, CO, Lake County, CO, Larimer County, CO, Las Animas County, CO, Mesa County, CO, Moffat County, CO, Montrose County, CO, Otero County, CO, Park County, CO, Pitkin County, CO, Pueblo County, CO, Rio Blanco County, CO, Routt County, CO, Summit County, CO, Teller County, CO, Uintah County, UT

The radar

The Pueblo radar (KPUX), 134 km from the middle of the area, began a volume at 21:44 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

Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 9.8 hours before the alert went out and 410 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3244 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 5 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 17, 6:38 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Cheyenne, Crowley, El Paso, Huerfano and 6 more	2 hr
Jun 17, 7:15 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Prowers	30 min

Nearby

Mesoscale Discussions in Colorado, 2004 Mesoscale Discussions in Utah, 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.