Alert archive / Wyoming / High Wind Watches in 2011

High Wind Watch 11, NWS Riverton, WY

May 25, 2011Fremont County, Sublette County, Wyoming

NWS Riverton, WY issued this high wind watch at May 25, 2011, 4:01 PM MDT for Fremont County, Sublette County, Wyoming. It took effect at May 26, 2011, 9:00 AM MDT. It was in force for .

The area

The counties it named.

The facts

Issued: May 25, 2011, 4:01 PM MDT (22:01 UTC)
In effect from: May 26, 2011, 9:00 AM MDT
Expired: May 26, 2011, 3:01 AM MDT
In force
Issued by: NWS Riverton, WY

Counties Fremont County, WY, Sublette County, WY

The radar

The Riverton/Lander radar (KRIW), 67 km from the middle of the area, began a volume at 22:00 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 12:00Z, 10.0 hours before the alert went out and 73 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: 1223 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: -13 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 May 25, 3:44 PM MDT, 17 minutes earlier.

Area forecast discussion, May 25, 3:44 PM MDT, 17 minutes before

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Hazardous weather outlook, May 25, 6:00 AM MDT, 10 hours 1 minute 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">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 6:07 PM MDT	Areal Flood Advisory	RIW	Fremont	5 hr
May 24, 10:47 PM MDT	Areal Flood Warning	RIW	Fremont	4 days
May 25, 1:38 AM MDT	Areal Flood Advisory	RIW	Johnson	28 hr
May 25, 3:05 PM MDT	Areal Flood Advisory	RIW	Johnson, Natrona	21 hr

Nearby

High Wind Watches in Wyoming, 2011 Every high wind watch in 2011

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.