Alert archive / Wyoming / Special Weather Statements in 2012

Special Weather Statement, NWS Riverton, WY

July 16, 2012Washakie County, Wyoming

NWS Riverton, WY issued this special weather statement at Jul 16, 2012, 9:52 PM MDT for Washakie County, Wyoming. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 16, 2012, 9:52 PM MDT (03:52 UTC)
Expired: Jul 16, 2012, 10:45 PM MDT
In force: 53 min
Issued by: NWS Riverton, WY

County Washakie County, WY

The radar

The Riverton/Lander radar (KRIW), 157 km from the middle of the area, began a volume at 03:54 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

Rapid City, SD (KUNR), launched 00:00Z, 3.9 hours before the alert went out and 352 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: 4862 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 16, 6:17 PM MDT, 3 hours 35 minutes before

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Special weather statement, Jul 16, 7:02 PM MDT, 2 hours 50 minutes before

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Special weather statement, Jul 16, 7:07 PM MDT, 2 hours 45 minutes before

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Special weather statement, Jul 16, 8:30 PM MDT, 1 hour 22 minutes before

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Special weather statement, Jul 16, 8:40 PM MDT, 1 hour 12 minutes before

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      <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.
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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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Special weather statement, Jul 16, 9:52 PM MDT, 0 minutes before

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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
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      <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>
      <p class="small" id="detail">
        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
Jul 16, 6:14 PM MDT	Special Weather Statement	RIW	Teton	46 min
Jul 16, 6:17 PM MDT	Special Weather Statement	RIW		43 min
Jul 16, 7:07 PM MDT	Special Weather Statement	RIW		38 min
Jul 16, 8:30 PM MDT	Special Weather Statement	RIW	Johnson	45 min
Jul 16, 9:55 PM MDT	Special Weather Statement	RIW	Sublette	50 min
Jul 16, 10:36 PM MDT	Special Weather Statement	RIW	Johnson	39 min
Jul 16, 11:14 PM MDT	Special Weather Statement	RIW	Johnson	46 min
Jul 16, 11:57 PM MDT	Special Weather Statement	RIW	Johnson	48 min
Jul 17, 12:21 PM MDT	Special Weather Statement	RIW	Johnson	39 min
Jul 17, 12:31 PM MDT	Special Weather Statement	RIW		44 min
Jul 17, 12:35 PM MDT	Special Weather Statement	RIW	Johnson	40 min
Jul 17, 12:45 PM MDT	Special Weather Statement	RIW		45 min
Jul 17, 12:58 PM MDT	Special Weather Statement	RIW	Johnson	47 min
Jul 17, 1:00 PM MDT	Special Weather Statement	RIW	Hot Springs	30 min
Jul 17, 1:03 PM MDT	Special Weather Statement	RIW	Johnson	27 min
Jul 17, 1:15 PM MDT	Special Weather Statement	RIW		30 min
Jul 17, 1:24 PM MDT	Special Weather Statement	RIW	Johnson	51 min
Jul 17, 1:27 PM MDT	Special Weather Statement	RIW		48 min
Jul 17, 2:04 PM MDT	Special Weather Statement	RIW	Johnson	26 min
Jul 17, 2:08 PM MDT	Special Weather Statement	RIW	Hot Springs	37 min
Jul 17, 2:15 PM MDT	Special Weather Statement	RIW	Big Horn	30 min
Jul 17, 2:31 PM MDT	Special Weather Statement	RIW	Hot Springs	29 min
Jul 17, 2:36 PM MDT	Special Weather Statement	RIW	Hot Springs	24 min
Jul 17, 3:00 PM MDT	Special Weather Statement	RIW	Big Horn	45 min
Jul 17, 4:10 PM MDT	Special Weather Statement	RIW	Washakie	50 min
Jul 17, 5:08 PM MDT	Special Weather Statement	RIW	Johnson	52 min

Nearby

Special Weather Statements in Wyoming, 2012 Every special weather statement in 2012

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.