Alert archive / Colorado / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 358

May 30, 20059 counties in Colorado

The Storm Prediction Center issued this severe thunderstorm watch at May 30, 2005, 5:25 PM MDT for 9 counties in Colorado. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 30, 2005, 5:25 PM MDT (23:25 UTC)
Expired: May 31, 2005, 12:00 AM MDT
In force: 7 hr
Issued by: the Storm Prediction Center

Counties Adams County, CO, Arapahoe County, CO, El Paso County, CO, Elbert County, CO, Kiowa County, CO, Lincoln County, CO, Morgan County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 70 km from the middle of the area, began a volume at 23:24 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.

Warnings issued inside it

4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 30, 7:50 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	41 min
May 30, 8:42 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	51 min
May 30, 9:02 PM MDT	Severe Thunderstorm Warning	PUB	Crowley, Kiowa	58 min
May 30, 10:00 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa	90 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.4 hours before the alert went out and 43 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: 725 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 9:39 AM MDT	Mesoscale Discussion	SPC	Delta, Dolores, Garfield, Mesa, Moffat, Montrose and 3 more	2 hr
May 30, 10:32 AM MDT	Mesoscale Discussion	SPC	Alamosa, Conejos, Costilla, Huerfano, Las Animas, Mineral and 2 more	118 min
May 30, 10:45 AM MDT	Severe Thunderstorm Watch	SPC	Archuleta, Conejos, Delta, Dolores, Garfield, Gunnison and 15 more	6 hr
May 30, 12:33 PM MDT	Mesoscale Discussion	SPC	Delta, Dolores, Garfield, Gunnison, Hinsdale, La Plata and 9 more	117 min
May 30, 1:30 PM MDT	Tornado Watch	SPC	Baca, Bent, Crowley, Las Animas, Otero, Prowers and 1 more	8 hr
May 30, 4:45 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 2 more	2 hr
May 30, 4:57 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Cheyenne, Elbert, El Paso, Kit Carson and 8 more	63 min

Nearby

Severe Thunderstorm Watches in Colorado, 2005 Every severe thunderstorm watch in 2005

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.