Alert archive / Wyoming / Winter Storm Warnings in 2013

Winter Storm Warning 14, NWS Cheyenne, WY

December 2, 20137 counties in Wyoming; 5 counties in Nebraska

NWS Cheyenne, WY issued this winter storm warning at Dec 2, 2013, 3:49 PM MST for 7 counties in Wyoming; 5 counties in Nebraska. It was in force for 43 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 2, 2013, 3:49 PM MST (22:49 UTC)
Expired: Dec 4, 2013, 10:29 AM MST
In force: 43 hr
Issued by: NWS Cheyenne, WY

Counties Banner County, NE, Box Butte County, NE, Dawes County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.8 hours before the alert went out and 275 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: 2539 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 386 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 storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Dec 2, 11:05 AM MST, 4 hours 44 minutes earlier.

Area forecast discussion, Dec 2, 11:05 AM MST, 4 hours 44 minutes before

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Hazardous weather outlook, Dec 2, 6:05 AM MST, 9 hours 44 minutes before

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In the hours before

Local storm report, Dec 2, 1:45 PM MST, 2 hours 4 minutes before

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Local storm report, Dec 2, 1:58 PM MST, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
158 PM MST MON DEC 02 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0140 PM     NON-TSTM WND GST BORDEAUX                41.95N 104.95W
12/02/2013  M58 MPH          PLATTE             WY   DEPT OF HIGHWAYS

            SUSTAINED AT 43 MPH.

0135 PM     NON-TSTM WND GST PINE BLUFFS             41.18N 104.07W
12/02/2013  M52 MPH          LARAMIE            WY   AWOS

            SUSTAINED AT 42 MPH.

0140 PM     NON-TSTM WND GST 10 SW CHEYENNE          41.04N 104.93W
12/02/2013  M59 MPH          LARAMIE            WY   DEPT OF HIGHWAYS

            SUSTAINED AT 43 MPH.

&&

BCHAPMAN

Local storm report, Dec 2, 2:19 PM MST, 1 hour 30 minutes before

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Local storm report, Dec 2, 2:45 PM MST, 1 hour 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
245 PM MST MON DEC 02 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0225 PM     NON-TSTM WND GST 16 W HORSE CREEK        41.41N 105.49W
12/02/2013  M59 MPH          ALBANY             WY   DEPT OF HIGHWAYS

            SUSTAINED AT 42 MPH.

0225 PM     NON-TSTM WND GST 10 SW CHEYENNE          41.04N 104.93W
12/02/2013  M59 MPH          LARAMIE            WY   DEPT OF HIGHWAYS

            SUSTAINED AT 45 MPH.

&&

BCHAPMAN

Local storm report, Dec 2, 3:07 PM MST, 42 minutes before

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Local storm report, Dec 2, 3:38 PM MST, 11 minutes before

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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 2, 3:49 PM MST	Winter Storm Watch	CYS	Albany, Carbon, Laramie, Platte	14 hr
Dec 2, 3:49 PM MST	Winter Weather Advisory	CYS	Albany, Converse, Goshen, Laramie, Niobrara, Platte	47 hr

Nearby

Winter Storm Warnings in Wyoming, 2013 Winter Storm Warnings in Nebraska, 2013 Every winter storm warning 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.