Alert archive / Wyoming / High Wind Watches in 2019

High Wind Watch 3, NWS Riverton, WY

February 11, 2019Park County, Wyoming

NWS Riverton, WY issued this high wind watch at Feb 11, 2019, 5:19 PM MST for Park County, Wyoming. It took effect at Feb 12, 2019, 5:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 11, 2019, 5:19 PM MST (00:19 UTC)
In effect from: Feb 12, 2019, 5:00 AM MST
Expired: Feb 12, 2019, 1:25 AM MST
In force
Issued by: NWS Riverton, WY

County Park County, WY

The radar

The Billings radar (KBLX), 167 km from the middle of the area, began a volume at 00:17 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, 0.3 hours before the alert went out and 187 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: 2106 m above ground
0-6 km bulk shear: 91 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 382 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 Feb 11, 2:50 PM MST, 2 hours 29 minutes earlier.

Area forecast discussion, Feb 11, 2:50 PM MST, 2 hours 29 minutes before

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Hazardous weather outlook, Feb 11, 11:02 AM MST, 6 hours 17 minutes before

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In the hours before

Local storm report, Feb 11, 12:32 PM MST, 4 hours 47 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
Feb 12, 1:25 AM MST	High Wind Watch	RIW	Fremont, Natrona, Sweetwater	9 hr
Feb 12, 1:25 AM MST	High Wind Warning	RIW	Fremont, Natrona, Park, Sweetwater	49 hr
Feb 12, 1:50 AM MST	Winter Storm Watch	RIW	Fremont, Hot Springs, Lincoln, Park, Sublette, Teton	9 hr
Feb 12, 10:47 AM MST	Winter Storm Warning	RIW	Fremont, Hot Springs, Lincoln, Park, Sublette, Teton	4 days
Feb 12, 10:47 AM MST	Winter Weather Advisory	RIW	Fremont, Lincoln, Sublette, Sweetwater	4 days

Nearby

High Wind Watches in Wyoming, 2019 Every high wind watch in 2019

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.