Alert archive / Nebraska / Wind Chill Advisories in 2019

Wind Chill Advisory 6, NWS Cheyenne, WY

March 2, 20196 counties in Wyoming; 8 counties in Nebraska

NWS Cheyenne, WY issued this wind chill advisory at Mar 2, 2019, 1:08 PM MST for 6 counties in Wyoming; 8 counties in Nebraska. It took effect at Mar 2, 2019, 9:00 PM MST. It was in force for 37 hr.

The area

The counties it named.

The facts

Issued: Mar 2, 2019, 1:08 PM MST (20:08 UTC)
In effect from: Mar 2, 2019, 9:00 PM MST
Expired: Mar 4, 2019, 10:08 AM MST
In force: 37 hr
Issued by: NWS Cheyenne, WY

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

The radar

The Cheyenne radar (KCYS), 114 km from the middle of the area, began a volume at 20:12 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.1 hours before the alert went out and 304 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: 630 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 329 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 chill advisory 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 wind chill advisory went out at Mar 2, 10:58 AM MST, 2 hours 10 minutes earlier.

Area forecast discussion, Mar 2, 10:58 AM MST, 2 hours 10 minutes before

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Hazardous weather outlook, Mar 2, 7:42 AM MST, 5 hours 26 minutes before

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In the hours before

Local storm report, Mar 2, 8:33 AM MST, 4 hours 35 minutes before

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Local storm report, Mar 2, 8:58 AM MST, 4 hours 10 minutes before

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Local storm report, Mar 2, 9:37 AM MST, 3 hours 31 minutes before

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Local storm report, Mar 2, 10:06 AM MST, 3 hours 2 minutes before

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Local storm report, Mar 2, 10:33 AM MST, 2 hours 35 minutes before

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Local storm report, Mar 2, 11:48 AM MST, 1 hour 20 minutes before

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Nearby

Wind Chill Advisories in Nebraska, 2019 Wind Chill Advisories in Wyoming, 2019 Every wind chill advisory in 2019

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.