Alert archive / Colorado / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 410

June 8, 200419 counties in Colorado

The Storm Prediction Center issued this severe thunderstorm watch at Jun 8, 2004, 2:55 PM MDT for 19 counties in Colorado. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 8, 2004, 2:55 PM MDT (20:55 UTC)
Expired
Jun 8, 2004, 8:00 PM MDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Cheyenne County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Jefferson County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Teller County, CO, Washington County, CO, Weld County, CO, Yuma County, CO

The radar

The Denver radar (KFTG), 54 km from the middle of the area, began a volume at 20:59 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

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

IssuedProductOfficeCountiesLasted
Jun 8, 3:52 PM MDTSevere Thunderstorm WarningPUBEl Paso53 min
Jun 8, 4:51 PM MDTSevere Thunderstorm WarningGLDKit Carson54 min
Jun 8, 4:52 PM MDTSevere Thunderstorm WarningPUBEl Paso53 min
Jun 8, 5:14 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln46 min
Jun 8, 5:19 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln41 min
Jun 8, 5:34 PM MDTSevere Thunderstorm WarningGLDYuma56 min
Jun 8, 5:44 PM MDTSevere Thunderstorm WarningGLDKit Carson61 min
Jun 8, 6:07 PM MDTFlash Flood WarningBOUDouglas, Jefferson113 min
Jun 8, 6:28 PM MDTSevere Thunderstorm WarningGLDYuma62 min
Jun 8, 6:32 PM MDTSevere Thunderstorm WarningGLDYuma58 min
Jun 8, 6:43 PM MDTSevere Thunderstorm WarningGLDKit Carson62 min
Jun 8, 7:43 PM MDTSevere Thunderstorm WarningGLDKit Carson32 min
Jun 8, 7:47 PM MDTSevere Thunderstorm WarningGLDYuma58 min
Jun 8, 7:58 PM MDTSevere Thunderstorm WarningBOUJefferson47 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, 8.9 hours before the alert went out and 72 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 2004-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 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 2004-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939Sfc1 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
18 J/kg
Mixed-layer CIN
-717 J/kg
Mixed-layer LCL
1218 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
39 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.

IssuedProductOfficeCountiesLasted
Jun 8, 2:22 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Elbert, Kit Carson, Lincoln, Logan and 4 more83 min
Jun 8, 3:31 PM MDTMesoscale DiscussionSPCBaca, Bent, Kiowa, Las Animas, Otero, Prowers119 min
Jun 8, 5:02 PM MDTMesoscale DiscussionSPCArapahoe, Cheyenne, Elbert, El Paso, Kit Carson, Lincoln and 1 more118 min

Nearby

Severe Thunderstorm Watches in Colorado, 2004Every severe thunderstorm watch 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.