Alert archive / Colorado / Mesoscale Discussions in 2007

Mesoscale Discussion 869

May 23, 20075 states

The Storm Prediction Center issued this mesoscale discussion at May 23, 2007, 3:33 PM MDT for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 23, 2007, 3:33 PM MDT (21:33 UTC)
Expired: May 23, 2007, 6:00 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Baca County, CO, Bent County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Hamilton County, KS, Kearny County, KS, Morton County, KS, Stanton County, KS, Union County, NM, Cimarron County, OK, Dallam County, TX

The radar

The Pueblo radar (KPUX), 204 km from the middle of the area, began a volume at 21:33 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

Dodge City, (KDDC), launched 12:00Z, 9.6 hours before the alert went out and 229 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: 1 J/kg
Mixed-layer CIN: -440 J/kg
Mixed-layer LCL: 1149 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 189 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
May 23, 1:20 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Prowers	55 min
May 22, 8:41 PM MDT	Mesoscale Discussion	SPC	Ellis, Finney, Jewell, Ness, Osborne, Pawnee and 6 more	94 min
May 22, 9:49 PM MDT	Severe Thunderstorm Watch	SPC	Barton, Cloud, Ellis, Ellsworth, Jewell, Lincoln and 12 more	5 hr
May 23, 1:27 AM MDT	Mesoscale Discussion	SPC	Cloud, Ellsworth, Lincoln, Ottawa, Republic	93 min
May 23, 11:22 AM MDT	Mesoscale Discussion	SPC	Barber, Clay, Cloud, Comanche, Dickinson, Ellsworth and 13 more	83 min
May 23, 12:27 PM MDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Brown, Clay, Comanche, Dickinson and 24 more	7 hr
May 23, 2:11 PM MDT	Mesoscale Discussion	SPC	Barber, Brown, Dickinson, Ellsworth, Geary, Harvey and 12 more	94 min
May 23, 2:31 PM MDT	Tornado Watch PDS	SPC	Barber, Clark, Comanche, Edwards, Finney, Ford and 19 more	7 hr
May 23, 4:19 PM MDT	Mesoscale Discussion	SPC	Atchison, Barton, Brown, Clay, Cloud, Dickinson and 28 more	86 min
May 23, 5:06 PM MDT	Mesoscale Discussion	SPC	Clark, Comanche, Edwards, Finney, Ford, Grant and 12 more	84 min

Nearby

Mesoscale Discussions in Colorado, 2007 Mesoscale Discussions in Kansas, 2007 Mesoscale Discussions in New Mexico, 2007 Every mesoscale discussion in 2007

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.