Alert archive / Colorado / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 214

April 29, 200015 counties in Colorado; 7 counties in Nebraska; Laramie County, Wyoming

The Storm Prediction Center issued this severe thunderstorm watch at Apr 29, 2000, 3:15 PM MDT for 15 counties in Colorado; 7 counties in Nebraska; Laramie County, Wyoming. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 29, 2000, 3:15 PM MDT (21:15 UTC)
Expired
Apr 29, 2000, 9:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center
All 23 counties

Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Jefferson County, CO, Kit Carson County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Cheyenne County, NE, Deuel County, NE, Garden County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Laramie County, WY

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 29, 4:22 PM MDTSevere Thunderstorm WarningBOUBoulder, Weld53 min
Apr 29, 4:37 PM MDTSevere Thunderstorm WarningCYSLaramie38 min
Apr 29, 4:46 PM MDTSevere Thunderstorm WarningBOULarimer, Weld44 min
Apr 29, 5:11 PM MDTSevere Thunderstorm WarningCYSLaramie49 min
Apr 29, 5:30 PM MDTSevere Thunderstorm WarningBOUWeld40 min
Apr 29, 6:05 PM MDTSevere Thunderstorm WarningCYSLaramie40 min
Apr 29, 6:58 PM MDTSevere Thunderstorm WarningBOULogan, Morgan, Washington, Weld47 min
Apr 29, 7:06 PM MDTSevere Thunderstorm WarningCYSCheyenne39 min
Apr 29, 8:43 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln47 min

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.3 hours before the alert went out and 86 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-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2000-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2000-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2658 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
24 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.

IssuedProductOfficeCountiesLasted
Apr 29, 3:15 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Cheyenne, Crowley, El Paso, Kiowa and 5 more6 hr

Nearby

Severe Thunderstorm Watches in Colorado, 2000Severe Thunderstorm Watches in Nebraska, 2000Severe Thunderstorm Watches in Wyoming, 2000Every severe thunderstorm watch in 2000

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.