Alert archive / Colorado / Winter Storm Watches in 2007
Winter Storm Watch 7, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm watch at Oct 19, 2007, 2:46 PM MDT for 9 counties in Colorado. It took effect at Oct 20, 2007, 6:00 PM MDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Oct 19, 2007, 2:46 PM MDT (20:46 UTC)
- In effect from
- Oct 20, 2007, 6:00 PM MDT
- Expired
- Oct 20, 2007, 4:14 PM MDT
- In force
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Clear Creek County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO
The radar
The Denver radar (KFTG), 102 km from the middle of the area, began a volume at 20:50 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 nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 8.8 hours before the alert went out and 213 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
- 2576 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this winter storm watch went out at Oct 19, 4:20 AM MDT, 10 hours 26 minutes earlier.
Area forecast discussion, Oct 19, 4:20 AM MDT, 10 hours 26 minutes before
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</html>The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 5:28 AM MDT | Fire Weather Watch | BOU | Arapahoe, Douglas, Elbert, Lincoln | 23 hr |
Nearby
Winter Storm Watches in Colorado, 2007Every winter storm watch in 2007
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.