Alert archive / Montana / Wind Advisories in 2016

Wind Advisory 6, NWS Billings, MT

February 5, 2016Park County, Stillwater County, Sweet Grass County, Montana

NWS Billings, MT issued this wind advisory at Feb 5, 2016, 4:23 AM MST for Park County, Stillwater County, Sweet Grass County, Montana. It took effect at Feb 5, 2016, 5:00 PM MST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: Feb 5, 2016, 4:23 AM MST (11:23 UTC)
In effect from: Feb 5, 2016, 5:00 PM MST
Expired: Feb 6, 2016, 2:44 PM MST
In force: 22 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 11:23 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, 11.4 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1973 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: -62 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 Feb 5, 3:54 AM MST, 29 minutes earlier.

Area forecast discussion, Feb 5, 3:54 AM MST, 29 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
Feb 5, 4:23 AM MST	High Wind Watch	BYZ	Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 6 more	34 hr

Nearby

Wind Advisories in Montana, 2016 Every wind advisory in 2016

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.