Alert archive / Montana / Wind Advisories in 2014

Wind Advisory 32, NWS Billings, MT

December 23, 2014Park County, Stillwater County, Sweet Grass County, Montana

NWS Billings, MT issued this wind advisory at Dec 23, 2014, 2:41 AM MST for Park County, Stillwater County, Sweet Grass County, Montana. It took effect at Dec 23, 2014, 6:00 PM MST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Dec 23, 2014, 2:41 AM MST (09:41 UTC)
In effect from: Dec 23, 2014, 6:00 PM MST
Expired: Dec 24, 2014, 2:14 AM MST
In force: 8 hr
Issued by: NWS Billings, MT

Counties Park County, MT, Stillwater County, MT, Sweet Grass County, MT

The radar

The Billings radar (KBLX), 107 km from the middle of the area, began a volume at 09:47 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

Riverton, WY (KRIW), launched 00:00Z, 9.7 hours before the alert went out and 313 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: 27 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 927 m above ground
0-6 km bulk shear: 80 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 165 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 wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Billings, MT wrote its last area forecast discussion before this wind advisory went out at Dec 22, 7:19 PM MST, 7 hours 22 minutes earlier.

Area forecast discussion, Dec 22, 7:19 PM MST, 7 hours 22 minutes before

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The office that day

Everything else NWS Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 23, 2:42 PM MST	Winter Weather Advisory	BYZ	Big Horn, Carbon, Carter, Custer, Golden Valley, Musselshell and 7 more	48 hr

Nearby

Wind Advisories in Montana, 2014 Every wind advisory in 2014

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.