Alert archive / Colorado / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 739

September 17, 200113 counties in Colorado; Union County, New Mexico; Cimarron County, Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Sep 17, 2001, 1:30 PM MDT for 13 counties in Colorado; Union County, New Mexico; Cimarron County, Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Sep 17, 2001, 1:30 PM MDT (19:30 UTC)
Expired: Sep 17, 2001, 7:00 PM MDT
In force: 6 hr
Issued by: the Storm Prediction Center

Counties Baca County, CO, Bent County, CO, Cheyenne County, CO, Crowley County, CO, El Paso County, CO, Elbert County, CO, Kiowa County, CO, Kit Carson County, CO, Las Animas County, CO, Lincoln County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Union County, NM, Cimarron County, OK

The radar

The Pueblo radar (KPUX), 98 km from the middle of the area, began a volume at 19:34 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

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

Issued	Product	Office	Counties	Lasted
Sep 17, 2:59 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	31 min
Sep 17, 3:03 PM MDT	Severe Thunderstorm Warning	PUB	Crowley, Pueblo	57 min
Sep 17, 3:17 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	28 min
Sep 17, 3:21 PM MDT	Severe Thunderstorm Warning	AMA	Cimarron	54 min
Sep 17, 4:25 PM MDT	Severe Thunderstorm Warning	PUB	Crowley, Otero	65 min
Sep 17, 5:22 PM MDT	Severe Thunderstorm Warning	PUB	Pueblo	63 min
Sep 17, 5:23 PM MDT	Severe Thunderstorm Warning	PUB	Bent	67 min

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.5 hours before the alert went out and 175 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: 5 J/kg
Mixed-layer CIN: -207 J/kg
Mixed-layer LCL: 1639 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 434 m²/s²
0-3 km storm-relative helicity: 422 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 17, 3:00 PM MDT	Severe Thunderstorm Watch	SPC	Beaver, Harper, Texas	5 hr

Nearby

Severe Thunderstorm Watches in Colorado, 2001 Severe Thunderstorm Watches in New Mexico, 2001 Severe Thunderstorm Watches in Oklahoma, 2001 Every severe thunderstorm watch in 2001

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.