Alert archive / Wyoming / High Wind Warnings in 2017
High Wind Warning 21, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Oct 17, 2017, 12:49 PM MDT for Park County, Wyoming. It took effect at Oct 17, 2017, 9:00 PM MDT. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Oct 17, 2017, 12:49 PM MDT (18:49 UTC)
- In effect from
- Oct 17, 2017, 9:00 PM MDT
- Expired
- Oct 18, 2017, 3:00 AM MDT
- In force
- 6 hr
- 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 18:53 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 17, 11:19 PM MDT | NON-TSTM WND GST 95 | 5 Wnw Clark, WY | MESONET STATION D6841, 5 WNW CLARK. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 6.8 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3653 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
081 WWUS75 KRIW 171849 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1249 PM MDT Tue Oct 17 2017 ...HIGH WINDS IN THE CODY FOOTHILLS TONIGHT... .The combination of increasing mountain top flow and favorable atmospheric conditions ahead of a cold front will likely produce areas of high wind along the Cody Foothills tonight. WYZ003-180900- /O.UPG.KRIW.HW.A.0014.171018T0000Z-171018T1600Z/ /O.NEW.KRIW.HW.W.0021.171018T0300Z-171018T0900Z/ Cody Foothills- Including the cities of Cody and Meeteetse 1249 PM MDT Tue Oct 17 2017 ...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO 3 AM MDT WEDNESDAY... The National Weather Service in Riverton has issued a High Wind Warning, which is in effect from 9 PM this evening to 3 AM MDT Wednesday. The High Wind Watch is no longer in effect. * TIMING...Winds will increase this evening with high winds possible after 9 pm. The most likely time of the highest winds will be between 10 pm and 1 am. * WINDS...West to southwest 30 to 40 mph gusts to 60 mph. Occasional gusts to 65 to 75 mph are possible around Clark. * IMPACTS...Strong crosswinds will pose a risk to high profile lightweight vehicles including state highway 120. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ Team Riverton
2 follow-up statements
326 WWUS75 KRIW 180527 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1127 PM MDT Tue Oct 17 2017 ...HIGH WINDS IN THE CODY FOOTHILLS TONIGHT... .The combination of increasing mountain top flow and favorable atmospheric conditions ahead of a cold front will likely produce areas of high wind along the Cody Foothills tonight. WYZ003-180900- /O.CON.KRIW.HW.W.0021.000000T0000Z-171018T0900Z/ Cody Foothills- Including the cities of Cody and Meeteetse 1127 PM MDT Tue Oct 17 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 AM MDT WEDNESDAY... * TIMING...High winds will continue through early Wednesday morning with the strongest winds expected until 1 am. * WINDS...West to southwest 30 to 40 mph gusts to 60 mph. Occasional gusts over 80 mph are possible around Clark. * OBSERVED WINDS...A peak wind gust of 95 mph was recorded in Clark at 1119 PM MDT Tuesday. * IMPACTS...Strong crosswinds will pose a risk to high profile lightweight vehicles including state highway 120. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
206 WWUS75 KRIW 180846 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 246 AM MDT Wed Oct 18 2017 WYZ003-181000- /O.EXP.KRIW.HW.W.0021.000000T0000Z-171018T0900Z/ Cody Foothills- Including the cities of Cody and Meeteetse 246 AM MDT Wed Oct 18 2017 ...HIGH WIND WARNING WILL EXPIRE AT 3 AM MDT EARLY THIS MORNING... Winds are decreasing so the high wind warning will be allowed to expire. Gusty winds will remain possible through the overnight hours however. $$
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 17, 12:42 AM MDT | High Wind Watch | RIW | Park | 12 hr |
Nearby
High Wind Warnings in Wyoming, 2017Every high wind warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.