Alert archive / Wyoming / High Wind Watches in 2018

High Wind Watch 8, NWS Riverton, WY

March 1, 2018Fremont County, Natrona County, Sweetwater County, Wyoming

NWS Riverton, WY issued this high wind watch at Mar 1, 2018, 9:50 PM MST for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Mar 2, 2018, 8:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued: Mar 1, 2018, 9:50 PM MST (04:50 UTC)
In effect from: Mar 2, 2018, 8:00 AM MST
Expired: Mar 2, 2018, 12:29 AM MST
In force
Issued by: NWS Riverton, WY

Counties Fremont County, WY, Natrona County, WY, Sweetwater County, WY

The radar

The Riverton/Lander radar (KRIW), 65 km from the middle of the area, began a volume at 04:50 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, 4.8 hours before the alert went out and 62 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: 2031 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 115 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 Riverton, WY wrote its last area forecast discussion before this high wind watch went out at Mar 1, 2:31 PM MST, 7 hours 19 minutes earlier.

Area forecast discussion, Mar 1, 2:31 PM MST, 7 hours 19 minutes before

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Hazardous weather outlook, Mar 1, 2:54 AM MST, 18 hours 56 minutes before

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In the hours before

Special weather statement, Mar 1, 5:14 PM MST, 4 hours 36 minutes before

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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 1, 8:18 PM MST	Winter Weather Advisory	RIW	Fremont, Lincoln, Park, Sublette, Teton	27 hr
Mar 2, 12:29 AM MST	High Wind Warning	RIW	Fremont, Natrona, Sweetwater	17 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.