Alert archive / Montana / Wind Advisories in 2013

Wind Advisory 15, NWS Billings, MT

April 28, 2013Park County, Montana

NWS Billings, MT issued this wind advisory at Apr 28, 2013, 1:21 PM MDT for Park County, Montana. It took effect at Apr 29, 2013, 6:00 AM MDT. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued: Apr 28, 2013, 1:21 PM MDT (19:21 UTC)
In effect from: Apr 29, 2013, 6:00 AM MDT
Expired: Apr 29, 2013, 10:46 PM MDT
In force: 17 hr
Issued by: NWS Billings, MT

County Park County, MT

The radar

The Billings radar (KBLX), 155 km from the middle of the area, began a volume at 19:19 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

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 7.4 hours before the alert went out and 426 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: 1460 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -124 m²/s²
0-3 km storm-relative helicity: 56 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 Apr 28, 9:42 AM MDT, 3 hours 39 minutes earlier.

Area forecast discussion, Apr 28, 9:42 AM MDT, 3 hours 39 minutes before

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Hazardous weather outlook, Apr 28, 4:01 AM MDT, 9 hours 20 minutes before

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Nearby

Wind Advisories in Montana, 2013 Every wind advisory 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; radar from the NEXRAD Level II archive.