Alert archive / Wyoming / High Wind Watches in 2016

High Wind Watch 12, NWS Riverton, WY

October 15, 2016Fremont County, Natrona County, Sweetwater County, Wyoming

NWS Riverton, WY issued this high wind watch at Oct 15, 2016, 1:22 AM MDT for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Oct 16, 2016, 3:00 AM MDT. It was in force for .

The area

The counties it named.

The facts

Issued: Oct 15, 2016, 1:22 AM MDT (07:22 UTC)
In effect from: Oct 16, 2016, 3:00 AM MDT
Expired: Oct 15, 2016, 1:12 PM MDT
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 07:19 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, 7.4 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: 2864 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 161 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 Oct 14, 10:48 PM MDT, 2 hours 34 minutes earlier.

Area forecast discussion, Oct 14, 10:48 PM MDT, 2 hours 34 minutes before

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Hazardous weather outlook, Oct 14, 9:11 PM MDT, 4 hours 11 minutes before

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In the hours before

Special weather statement, Oct 14, 8:50 PM MDT, 4 hours 32 minutes before

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Special weather statement, Oct 14, 8:56 PM MDT, 4 hours 26 minutes before

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Local storm report, Oct 14, 9:38 PM MDT, 3 hours 44 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 15, 1:12 PM MDT	High Wind Watch	RIW	Fremont	9 hr
Oct 15, 1:12 PM MDT	High Wind Warning	RIW	Fremont, Natrona, Park, Sweetwater	23 hr

Nearby

High Wind Watches in Wyoming, 2016 Every high wind watch in 2016

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.