Alert archive / Colorado / Tornado Watches in 2013
Tornado Watch 346
The Storm Prediction Center issued this tornado watch at Jun 22, 2013, 4:18 PM MDT for 13 counties in Colorado; Cheyenne County, Sherman County, Wallace County, Kansas; Dundy County, Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 22, 2013, 4:18 PM MDT (22:18 UTC)
- Expired
- Jun 22, 2013, 11:00 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 65 kt
Counties Adams County, CO, Arapahoe County, CO, Cheyenne County, CO, Elbert County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Cheyenne County, KS, Sherman County, KS, Wallace County, KS, Dundy County, NE
The radar
The Denver radar (KFTG), 112 km from the middle of the area, began a volume at 22:18 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
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 4:31 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 29 min |
| Jun 22, 4:34 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 26 min |
| Jun 22, 4:59 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 31 min |
| Jun 22, 5:40 PM MDT | Tornado Warning | BOU | Adams, Morgan, Washington | 35 min |
| Jun 22, 5:57 PM MDT | Severe Thunderstorm Warning | GLD | Greeley, Logan, Wallace, Wichita | 63 min |
| Jun 22, 6:49 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 26 min |
| Jun 22, 6:58 PM MDT | Severe Thunderstorm Warning | GLD | Logan, Wallace | 32 min |
| Jun 22, 7:44 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 31 min |
| Jun 22, 8:01 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 44 min |
| Jun 22, 9:22 PM MDT | Severe Thunderstorm Warning | GLD | Dundy, Hitchcock | 53 min |
| Jun 22, 10:08 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Rawlins | 52 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, 10.3 hours before the alert went out and 31 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
- -479 J/kg
- Mixed-layer LCL
- 1617 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 63 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 |
|---|---|---|---|---|
| Jun 21, 8:39 PM MDT | Mesoscale Discussion | SPC | Logan, Phillips, Sedgwick | 36 min |
| Jun 22, 12:11 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Logan, Morgan, Washington, Weld | 2 hr |
| Jun 22, 4:00 PM MDT | Mesoscale Discussion | SPC | Logan, Morgan, Phillips, Sedgwick, Washington, Weld and 1 more | 90 min |
| Jun 22, 4:41 PM MDT | Mesoscale Discussion | SPC | Baca | 64 min |
| Jun 22, 4:56 PM MDT | Tornado Watch | SPC | Decatur, Gove, Graham, Greeley, Logan, Norton and 8 more | 7 hr |
| Jun 21, 7:56 PM MDT | Mesoscale Discussion | SPC | Blaine, Boyd, Brown, Cherry, Holt, Hooker and 7 more | 94 min |
| Jun 21, 8:07 PM MDT | Severe Thunderstorm Watch | SPC | Antelope, Blaine, Boone, Boyd, Cedar, Custer and 9 more | 5 hr |
| Jun 21, 9:25 PM MDT | Severe Thunderstorm Watch | SPC | Buffalo, Dawson, Gosper, Greeley, Hall, Hamilton and 7 more | 3 hr |
| Jun 21, 11:42 PM MDT | Mesoscale Discussion | SPC | Arthur, Blaine, Brown, Cherry, Custer, Grant and 7 more | 93 min |
| Jun 22, 1:45 PM MDT | Mesoscale Discussion | SPC | Banner, Box Butte, Dawes, Garden, Morrill, Scotts Bluff and 2 more | 90 min |
| Jun 22, 2:13 PM MDT | Tornado Watch | SPC | Banner, Box Butte, Cheyenne, Dawes, Deuel, Garden and 5 more | 6 hr |
| Jun 22, 2:34 PM MDT | Mesoscale Discussion | SPC | Adams, Blaine, Brown, Buffalo, Custer, Dawson and 15 more | 56 min |
Nearby
Tornado Watches in Colorado, 2013Tornado Watches in Kansas, 2013Tornado Watches in Nebraska, 2013Every tornado watch in 2013
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.