Alert archive / Wyoming / High Wind Watches in 2018

High Wind Watch 20, NWS Cheyenne, WY

February 24, 2018Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this high wind watch at Feb 24, 2018, 2:05 AM MST for Albany County, Carbon County, Wyoming. It took effect at Feb 25, 2018, 8:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 24, 2018, 2:05 AM MST (09:05 UTC)
In effect from: Feb 25, 2018, 8:00 AM MST
Expired: Feb 24, 2018, 1:32 PM MST
In force
Issued by: NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY

The radar

The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 09:08 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, 9.1 hours before the alert went out and 230 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: 1335 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 34 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 high wind watch 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 high wind watch went out at Feb 23, 10:32 PM MST, 3 hours 33 minutes earlier.

Area forecast discussion, Feb 23, 10:32 PM MST, 3 hours 33 minutes before

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Hazardous weather outlook, Feb 23, 3:21 PM MST, 10 hours 44 minutes before

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    <section class="card" role="status" aria-live="polite">
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 2:05 AM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	16 hr
Feb 24, 6:27 AM MST	Winter Weather Advisory	CYS	Albany, Carbon	12 hr
Feb 24, 1:32 PM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	36 hr

Nearby

High Wind Watches in Wyoming, 2018 Every high wind watch in 2018

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.