Alert archive / Colorado / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 741
The Storm Prediction Center issued this severe thunderstorm watch at Aug 23, 2005, 3:20 PM MDT for 9 counties in Colorado; Cheyenne County, Sherman County, Wallace County, Kansas; 8 counties in Nebraska. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 23, 2005, 3:20 PM MDT (21:20 UTC)
- Expired
- Aug 23, 2005, 11:00 PM MDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
Counties Cheyenne County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Sherman County, KS, Wallace County, KS, Banner County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Keith County, NE, Kimball County, NE, Perkins County, NE
The radar
The Denver radar (KFTG), 147 km from the middle of the area, began a volume at 21:23 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 4:22 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 21 min |
| Aug 23, 5:24 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 66 min |
| Aug 23, 6:44 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 31 min |
| Aug 23, 6:51 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 54 min |
| Aug 23, 7:10 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 69 min |
| Aug 23, 7:40 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 65 min |
| Aug 23, 7:44 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 62 min |
| Aug 23, 8:12 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 63 min |
| Aug 23, 8:54 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 66 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, 9.3 hours before the alert went out and 59 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.
- Mixed-layer CAPE
- 58 J/kg
- Mixed-layer CIN
- -290 J/kg
- Mixed-layer LCL
- 1445 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 12:25 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more | 2 hr |
| Aug 23, 2:51 PM MDT | Mesoscale Discussion | SPC | Baca | 114 min |
| Aug 22, 7:00 PM MDT | Severe Thunderstorm Watch | SPC | Barber, Clark, Comanche, Edwards, Finney, Ford and 15 more | 6 hr |
| Aug 22, 10:20 PM MDT | Mesoscale Discussion | SPC | Clark, Comanche, Edwards, Ford, Gray, Haskell and 5 more | 85 min |
| Aug 22, 11:55 PM MDT | Mesoscale Discussion | SPC | Barber, Chautauqua, Comanche, Cowley, Elk, Harper and 8 more | 65 min |
Nearby
Severe Thunderstorm Watches in Colorado, 2005Severe Thunderstorm Watches in Nebraska, 2005Severe Thunderstorm Watches in Kansas, 2005Every 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.