Alert archive / Colorado / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 356
The Storm Prediction Center issued this severe thunderstorm watch at May 30, 2005, 10:45 AM MDT for 21 counties in Colorado; Daggett County, Grand County, Uintah County, Utah. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 30, 2005, 10:45 AM MDT (16:45 UTC)
- Expired
- May 30, 2005, 5:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 24 counties
Archuleta County, CO, Conejos County, CO, Delta County, CO, Dolores County, CO, Garfield County, CO, Gunnison County, CO, Hinsdale County, CO, La Plata County, CO, Mesa County, CO, Mineral County, CO, Moffat County, CO, Montezuma County, CO, Montrose County, CO, Ouray County, CO, Pitkin County, CO, Rio Blanco County, CO, Rio Grande County, CO, Routt County, CO, Saguache County, CO, San Juan County, CO, San Miguel County, CO, Daggett County, UT, Grand County, UT, Uintah County, UT
The radar
The Grand Junction radar (KGJX), 47 km from the middle of the area, began a volume at 16:47 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
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 11:33 AM MDT | Severe Thunderstorm Warning | GJT | Moffat | 47 min |
| May 30, 12:26 PM MDT | Severe Thunderstorm Warning | GJT | Moffat | 49 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
Salt Lake City I, UT (KSLC), launched 12:00Z, 4.8 hours before the alert went out and 372 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
- 100 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1001 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 6 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 |
|---|---|---|---|---|
| May 30, 9:39 AM MDT | Mesoscale Discussion | SPC | Delta, Dolores, Garfield, Mesa, Moffat, Montrose and 3 more | 2 hr |
| May 30, 10:32 AM MDT | Mesoscale Discussion | SPC | Alamosa, Conejos, Costilla, Huerfano, Las Animas, Mineral and 2 more | 118 min |
| May 30, 12:33 PM MDT | Mesoscale Discussion | SPC | Delta, Dolores, Garfield, Gunnison, Hinsdale, La Plata and 9 more | 117 min |
| May 30, 1:30 PM MDT | Tornado Watch | SPC | Baca, Bent, Crowley, Las Animas, Otero, Prowers and 1 more | 8 hr |
| May 30, 4:45 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 2 more | 2 hr |
| May 30, 4:57 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Cheyenne, Elbert, El Paso, Kit Carson and 8 more | 63 min |
| May 30, 5:25 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Elbert, El Paso, Kiowa, Lincoln and 3 more | 7 hr |
| May 30, 6:14 AM MDT | Mesoscale Discussion | SPC | Salt Lake, Utah | 91 min |
Nearby
Severe Thunderstorm Watches in Colorado, 2005Severe Thunderstorm Watches in Utah, 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.