Alert archive / Colorado / Winter Storm Watches in 2017
Winter Storm Watch 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm watch at Jan 14, 2017, 5:59 AM MST for Elbert County, Lincoln County, Washington County, Colorado. It took effect at Jan 15, 2017, 6:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jan 14, 2017, 5:59 AM MST (12:59 UTC)
- In effect from
- Jan 15, 2017, 6:00 AM MST
- Expired
- Jan 14, 2017, 2:03 PM MST
- In force
- Issued by
- NWS Denver/Boulder, CO
Counties Elbert County, CO, Lincoln County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 90 km from the middle of the area, began a volume at 12:57 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 (KDEN), launched 12:00Z, 1.0 hours before the alert went out and 60 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
- 1199 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 14, 2:03 PM MST | Winter Weather Advisory | BOU | Arapahoe, Douglas, Elbert, Lincoln, Phillips, Sedgwick and 1 more | 45 hr |
Nearby
Winter Storm Watches in Colorado, 2017Every winter storm watch in 2017
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.