Alert archive / Colorado / Severe Thunderstorm Watches in 2006
Severe Thunderstorm Watch 151
The Storm Prediction Center issued this severe thunderstorm watch at Apr 5, 2006, 11:28 AM MDT for 18 counties in Colorado; 4 counties in Utah; 4 counties in Wyoming. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 5, 2006, 11:28 AM MDT (17:28 UTC)
- Expired
- Apr 5, 2006, 5:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 26 counties
Archuleta County, CO, Delta County, CO, Dolores County, CO, Eagle County, CO, Garfield County, CO, Gunnison County, CO, Hinsdale County, CO, La Plata County, CO, Mesa County, CO, Moffat County, CO, Montezuma County, CO, Montrose County, CO, Ouray County, CO, Pitkin County, CO, Rio Blanco County, CO, Routt County, CO, San Juan County, CO, San Miguel County, CO, Daggett County, UT, Grand County, UT, San Juan County, UT, Uintah County, UT, Carbon County, WY, Lincoln County, WY, Sublette County, WY, Sweetwater County, WY
The radar
The Grand Junction radar (KGJX), 99 km from the middle of the area, began a volume at 17:32 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
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 12:52 PM MDT | Severe Thunderstorm Warning | GJT | Garfield, Rio Blanco | 38 min |
| Apr 5, 2:36 PM MDT | Severe Thunderstorm Warning | GJT | Mesa | 24 min |
| Apr 5, 3:17 PM MDT | Severe Thunderstorm Warning | GJT | Garfield | 73 min |
| Apr 5, 3:23 PM MDT | Severe Thunderstorm Warning | GJT | Garfield | 67 min |
| Apr 5, 3:27 PM MDT | Severe Thunderstorm Warning | GJT | Mesa | 48 min |
| Apr 5, 4:29 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Sweetwater | 61 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
Grand Junction, CO (KGJT), launched 12:00Z, 5.5 hours before the alert went out and 75 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2150 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 417 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 |
|---|---|---|---|---|
| Apr 5, 10:53 AM MDT | Mesoscale Discussion | SPC | Delta, Dolores, Garfield, Gunnison, Hinsdale, La Plata and 8 more | 2 hr |
| Apr 5, 4:41 PM MDT | Mesoscale Discussion | SPC | Archuleta, Chaffee, Conejos, Delta, Dolores, Eagle and 21 more | 64 min |
| Apr 5, 3:59 PM MDT | Mesoscale Discussion | SPC | Big Horn, Campbell, Converse, Crook, Fremont, Hot Springs and 6 more | 91 min |
Nearby
Severe Thunderstorm Watches in Colorado, 2006Severe Thunderstorm Watches in Utah, 2006Severe Thunderstorm Watches in Wyoming, 2006Every severe thunderstorm watch in 2006
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.