Alert archive / Colorado / Mesoscale Discussions in 2003
Mesoscale Discussion 1680
The Storm Prediction Center issued this mesoscale discussion at Jul 7, 2003, 2:52 PM MDT for 18 counties in Colorado; 7 counties in Nebraska; Laramie County, Wyoming. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2003, 2:52 PM MDT (20:52 UTC)
- Expired
- Jul 7, 2003, 5:15 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 26 counties
Adams County, CO, Arapahoe County, CO, Crowley County, CO, Denver County, CO, El Paso County, CO, Elbert 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, Pueblo County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Kimball County, NE, Perkins County, NE, Scotts Bluff County, NE, Laramie County, WY
The radar
The Denver radar (KFTG), 69 km from the middle of the area, began a volume at 20:53 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 8.9 hours before the alert went out and 80 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
- 263 J/kg
- Mixed-layer CIN
- -561 J/kg
- Mixed-layer LCL
- 2421 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson, Lincoln, Logan, Morgan, Phillips and 3 more | 6 hr |
| Jul 6, 7:57 PM MDT | Mesoscale Discussion | SPC | Adams, Antelope, Boone, Buffalo, Burt, Butler and 44 more | 3 hr |
| Jul 6, 8:20 PM MDT | Tornado Watch | SPC | Antelope, Boone, Burt, Butler, Cass, Cedar and 24 more | 6 hr |
| Jul 6, 10:06 PM MDT | Mesoscale Discussion | SPC | Antelope, Boone, Burt, Butler, Cass, Cedar and 24 more | 114 min |
| Jul 7, 3:16 PM MDT | Mesoscale Discussion | SPC | Adams, Arthur, Boone, Buffalo, Butler, Cass and 49 more | 2 hr |
Nearby
Mesoscale Discussions in Colorado, 2003Mesoscale Discussions in Nebraska, 2003Mesoscale Discussions in Wyoming, 2003Every mesoscale discussion in 2003
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.