Alert archive / Colorado / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 830
The Storm Prediction Center issued this severe thunderstorm watch at Aug 14, 2008, 3:36 PM MDT for 22 counties in Colorado. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 14, 2008, 3:36 PM MDT (21:36 UTC)
- Expired
- Aug 14, 2008, 10:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 22 counties
Adams County, CO, Arapahoe County, CO, 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, Logan County, CO, Morgan County, CO, Otero County, CO, Phillips County, CO, Prowers County, CO, Pueblo County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO
The radar
The Pueblo radar (KPUX), 72 km from the middle of the area, began a volume at 21:37 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 3:45 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 39 min |
| Aug 14, 4:03 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Pueblo | 87 min |
| Aug 14, 4:13 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 62 min |
| Aug 14, 4:22 PM MDT | Tornado Warning | BOU | Elbert, Lincoln | 23 min |
| Aug 14, 4:35 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 60 min |
| Aug 14, 4:43 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 36 min |
| Aug 14, 4:46 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 44 min |
| Aug 14, 4:56 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 29 min |
| Aug 14, 5:23 PM MDT | Severe Thunderstorm Warning | PUB | Crowley | 97 min |
| Aug 14, 5:32 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 56 min |
| Aug 14, 5:52 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 53 min |
| Aug 14, 6:43 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 62 min |
| Aug 14, 6:48 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 87 min |
| Aug 14, 7:01 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 59 min |
| Aug 14, 7:13 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 31 min |
| Aug 14, 7:34 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 38 min |
| Aug 14, 7:42 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 73 min |
| Aug 14, 7:46 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 59 min |
| Aug 14, 8:28 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Crowley, Kiowa, Otero | 35 min |
| Aug 14, 8:29 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 29 min |
| Aug 14, 8:44 PM MDT | Flash Flood Warning | GLD | Kit Carson, Yuma | 3 hr |
| Aug 14, 9:39 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero | 48 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, 9.6 hours before the alert went out and 145 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
- 9 J/kg
- Mixed-layer CIN
- -391 J/kg
- Mixed-layer LCL
- 1391 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 65 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 14, 11:47 AM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Baca, Bent, Broomfield, Cheyenne and 17 more | 88 min |
Nearby
Severe Thunderstorm Watches in Colorado, 2008Every severe thunderstorm watch in 2008
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.