Alert archive / Colorado / Winter Storm Watches in 2011
Winter Storm Watch 20, NWS Pueblo, CO
NWS Pueblo, CO issued this winter storm watch at Dec 18, 2011, 3:29 PM MST for Crowley County, Kiowa County, Colorado. It took effect at Dec 19, 2011, 11:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 18, 2011, 3:29 PM MST (22:29 UTC)
- In effect from
- Dec 19, 2011, 11:00 AM MST
- Expired
- Dec 18, 2011, 9:28 PM MST
- In force
- Issued by
- NWS Pueblo, CO
Counties Crowley County, CO, Kiowa County, CO
The radar
The Pueblo radar (KPUX), 81 km from the middle of the area, began a volume at 22:35 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, 10.5 hours before the alert went out and 166 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
- 3654 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- -25 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 Pueblo, CO wrote its last area forecast discussion before this winter storm watch went out at Dec 18, 10:40 AM MST, 4 hours 49 minutes earlier.
Area forecast discussion, Dec 18, 10:40 AM MST, 4 hours 49 minutes before
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</html>The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 3:46 AM MST | Blizzard Watch | PUB | Baca, Las Animas | 12 hr |
| Dec 18, 3:29 PM MST | Blizzard Warning | PUB | Baca, Bent, Costilla, Crowley, Huerfano, Kiowa and 3 more | 36 hr |
| Dec 18, 3:29 PM MST | Winter Storm Warning | PUB | Crowley, Kiowa, Las Animas, Otero | 12 hr |
| Dec 18, 3:29 PM MST | Winter Weather Advisory | PUB | Costilla, Custer, Fremont, Huerfano, Las Animas, Pueblo | 18 hr |
Nearby
Winter Storm Watches in Colorado, 2011Every winter storm watch in 2011
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.