Alert archive / Colorado / Blizzard Watches in 2013
Blizzard Watch 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this blizzard watch at Feb 8, 2013, 5:22 AM MST for Logan County, Phillips County, Sedgwick County, Colorado. It took effect at Feb 9, 2013, 5:00 PM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 8, 2013, 5:22 AM MST (12:22 UTC)
- In effect from
- Feb 9, 2013, 5:00 PM MST
- Expired
- Feb 9, 2013, 5:32 AM MST
- In force
- Issued by
- NWS Denver/Boulder, CO
Counties Logan County, CO, Phillips County, CO, Sedgwick County, CO
The radar
The Goodland radar (KGLD), 170 km from the middle of the area, began a volume at 12:25 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, 0.4 hours before the alert went out and 109 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
- 3510 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this blizzard 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 blizzard watch went out at Feb 8, 4:38 AM MST, 44 minutes earlier.
Area forecast discussion, Feb 8, 4:38 AM MST, 44 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 |
|---|---|---|---|---|
| Feb 8, 3:18 PM MST | Winter Weather Advisory | BOU | Adams, Arapahoe, Boulder, Clear Creek, Elbert, Gilpin and 7 more | 38 hr |
Nearby
Blizzard Watches in Colorado, 2013Every blizzard 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.