Alert archive / Colorado / Winter Weather Advisories in 2012

Winter Weather Advisory 33, NWS Pueblo, CO

December 26, 20126 counties in Colorado

NWS Pueblo, CO issued this winter weather advisory at Dec 26, 2012, 3:28 AM MST for 6 counties in Colorado. It took effect at Dec 26, 2012, 1:00 PM MST. It was in force for 34 hr.

The area

The counties it named.

The facts

Issued: Dec 26, 2012, 3:28 AM MST (10:28 UTC)
In effect from: Dec 26, 2012, 1:00 PM MST
Expired: Dec 27, 2012, 11:00 PM MST
In force: 34 hr
Issued by: NWS Pueblo, CO

Counties Chaffee County, CO, Conejos County, CO, Lake County, CO, Mineral County, CO, Rio Grande County, CO, Saguache County, CO

The radar

The Grand Junction radar (KGJX), 193 km from the middle of the area, began a volume at 10:32 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 00:00Z, 10.5 hours before the alert went out and 338 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 878 m above ground
0-6 km bulk shear: 85 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter weather advisory 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 weather advisory went out at Dec 26, 3:20 AM MST, 8 minutes earlier.

Area forecast discussion, Dec 26, 3:20 AM MST, 8 minutes before

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Hazardous weather outlook, Dec 25, 5:18 PM MST, 10 hours 10 minutes before

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In the hours before

Local storm report, Dec 25, 10:02 PM MST, 5 hours 26 minutes before

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Nearby

Winter Weather Advisories in Colorado, 2012 Every winter weather advisory in 2012

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.