Alert archive / Wyoming / High Wind Warnings in 2017
High Wind Warning 8, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Feb 28, 2017, 1:17 PM MST for 5 counties in Wyoming. It took effect at Mar 1, 2017, 12:00 AM MST. It was in force for 24 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
- Feb 28, 2017, 1:17 PM MST (20:17 UTC)
- In effect from
- Mar 1, 2017, 12:00 AM MST
- Expired
- Mar 2, 2017, 12:00 AM MST
- In force
- 24 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Hot Springs County, WY, Natrona County, WY, Park County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 13 km from the middle of the area, began a volume at 20:18 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 |
|---|---|---|---|
| Mar 1, 12:15 AM MST | NON-TSTM WND GST 58 | 3 Wnw Dubois, WY | DUBOIS AIRPORT. |
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, 8.3 hours before the alert went out and 13 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
- 2095 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- -59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
674 WWUS75 KRIW 282017 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 117 PM MST Tue Feb 28 2017 ...High Winds are expected in the Absaroka mountains and Cody foothills midnight tonight through midnight Wednesday night... .High Winds are expected to develop in the Absaroka mountains and Cody foothills midnight tonight through midnight Wednesday night. A strong pressure gradient will combine with very strong winds aloft to produce high winds along the lower east slopes of the Absaroka mountains and Cody foothills. WYZ002-003-011000- /O.UPG.KRIW.HW.A.0007.170301T0700Z-170302T0700Z/ /O.NEW.KRIW.HW.W.0008.170301T0700Z-170302T0700Z/ Absaroka Mountains-Cody Foothills- Including the cities of Cody and Meeteetse 117 PM MST Tue Feb 28 2017 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... The National Weather Service in Riverton has issued a High Wind Warning, which is in effect from midnight tonight to midnight MST Wednesday night. The High Wind Watch is no longer in effect. * TIMING...High winds will develop around midnight tonight and will produce periods of high winds through midnight Wednesday night. * WINDS...West winds of 40 to 50 mph with gusts of 65 to 75 mph. Highest wind expected around and west of Clark. * IMPACTS...Strong cross winds along highway 120 and Chief Joseph highway will produce extreme blow over threat for trucks pulling light weight and high profile trailers. Areas of blowing and drifting snow may restrict visibility below an eighth of a mile at times. 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. && $$
5 follow-up statements
444 WWUS75 KRIW 010359 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 859 PM MST Tue Feb 28 2017 ...High Winds are expected in the Absaroka mountains and Cody foothills midnight tonight through midnight Wednesday night... .A strong pressure gradient will combine with very strong winds aloft to produce high winds along the lower east slopes of the Absaroka mountains and Cody foothills late tonight through Wednesday evening. WYZ002-003-011200- /O.CON.KRIW.HW.W.0008.170301T0700Z-170302T0700Z/ Absaroka Mountains-Cody Foothills- Including the cities of Cody and Meeteetse 859 PM MST Tue Feb 28 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... * TIMING...High winds will develop around midnight tonight and will produce periods of high winds through midnight Wednesday night. * WINDS...West 30 to 50 mph with gusts of 65 to 75 mph in the Absaroka Mountains. In the Cody Foothills, west winds of 30 to 40 mph will occur at times with occasional gusts to 60 mph. Higher winds of 70 to possibly 80 mph could occur around Clark. * IMPACTS...Strong cross winds along highway 120 and Chief Joseph highway will produce extreme blow over threat for trucks pulling light weight and high profile trailers. Areas of blowing and drifting snow in the Absaroka Mountains may restrict visibility below an eighth of a mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ TEAM RIVERTON
173 WWUS75 KRIW 010913 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 213 AM MST Wed Mar 1 2017 ...High Winds are expected in the Absaroka mountains and Cody foothills through tonight... .A strong pressure gradient will combine with very strong winds aloft to produce high winds along the lower east slopes of the Absaroka mountains and Cody foothills through tonight. WYZ002-003-012300- /O.CON.KRIW.HW.W.0008.000000T0000Z-170302T0700Z/ Absaroka Mountains-Cody Foothills- Including the cities of Cody and Meeteetse 213 AM MST Wed Mar 1 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * TIMING...Winds will increase tonight and become high at times. The strongest winds are expected this afternoon and evening. * WINDS...West 30 to 50 mph with gusts of 65 to 75 mph in the Absarokas. In the Cody Foothills, west winds of 30 to 40 mph will occur at times with occasional gusts to 60 mph. Higher gusts of 70 to possibly 80 mph could occur around Clark. * IMPACTS...Strong cross winds along highway 120 and Chief Joseph highway will produce extreme blow over threat for trucks pulling light weight and high profile trailers. Areas of blowing and drifting snow in the Absaroka Mountains may restrict visibility below an eighth of a mile at times. 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. && $$
148 WWUS75 KRIW 012154 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 254 PM MST Wed Mar 1 2017 ...High Winds are expected in the Absaroka mountains and Cody foothills through tonight... .A strong pressure gradient will combine with very strong winds aloft to produce high winds along the lower east slopes of the Absaroka mountains and Cody foothills through tonight. WYZ002-003-020700- /O.CON.KRIW.HW.W.0008.000000T0000Z-170302T0700Z/ Absaroka Mountains-Cody Foothills- Including the cities of Cody and Meeteetse 254 PM MST Wed Mar 1 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * TIMING...Winds will increase tonight and become high at times. The strongest winds are expected this afternoon and evening. * WINDS...West 30 to 50 mph with gusts of 65 to 75 mph in the Absarokas. In the Cody Foothills, west winds of 30 to 40 mph will occur at times with occasional gusts to 60 mph. Higher gusts of 70 to possibly 80 mph could occur around Clark. * IMPACTS...Strong cross winds along highway 120 and Chief Joseph highway will produce extreme blow over threat for trucks pulling light weight and high profile trailers. Areas of blowing and drifting snow in the Absaroka Mountains may restrict visibility below an eighth of a mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
942 WWUS75 KRIW 012338 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 438 PM MST Wed Mar 1 2017 ...High winds are expected through midnight tonight for portions of northern and central Wyoming... .A strong pressure gradient combining with very strong winds aloft will result in high winds along the eastern slopes of the Absaroka Mountains, Cody Foothills, southeast Fremont, and southwest Natrona Counties. The high winds will continue through the evening, before weakening by around midnight. WYZ019-020700- /O.EXA.KRIW.HW.W.0008.000000T0000Z-170302T0700Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 438 PM MST Wed Mar 1 2017 ...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT... The National Weather Service in Riverton has issued a High Wind Warning, which is in effect until midnight MST tonight. * TIMING...Winds will remain high through the evening, before decreasing around midnight. * WINDS...West to southwest 30 to 40 mph with gusts of 60 mph. Localized gusts around 75 mph could continue on ridge tops. * IMPACTS...Mainly to transportation. Enhanced blow over risk for light and high profile vehicles. Areas of blowing snow will also occur with roads varying from dry to slick in spots. Dangerous black ice could form on area roadways that are wet as of late this afternoon, but freeze as the sun sets. 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. && $$ WYZ002-003-020700- /O.CON.KRIW.HW.W.0008.000000T0000Z-170302T0700Z/ Absaroka Mountains-Cody Foothills- Including the cities of Cody and Meeteetse 438 PM MST Wed Mar 1 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * TIMING...Winds will remain high through the evening, before decreasing around midnight. * WINDS...West 30 to 50 mph with gusts of 65 to 75 mph in the Absarokas. In the Cody Foothills, west winds of 30 to 40 mph will occur at times with occasional gusts to 60 mph. Higher gusts of 70 to possibly 80 mph could occur around Clark. * IMPACTS...Strong cross winds along highway 120 and Chief Joseph highway will produce extreme blow over threat for trucks pulling light weight and high profile trailers. Areas of blowing and drifting snow in the Absaroka Mountains may restrict visibility below an eighth of a mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ Team Riverton/21
697 WWUS75 KRIW 020631 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1131 PM MST Wed Mar 1 2017 WYZ002-003-020745- /O.EXP.KRIW.HW.W.0008.000000T0000Z-170302T0700Z/ Absaroka Mountains-Cody Foothills- Including the cities of Cody and Meeteetse 1131 PM MST Wed Mar 1 2017 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT... Winds have weakened, and are no longer expected to reach high wind criteria. $$ WYZ019-020745- /O.EXP.KRIW.HW.W.0008.000000T0000Z-170302T0700Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 1131 PM MST Wed Mar 1 2017 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT... Wind will continue to gradually weaken late tonight, and the high wind warning will be allowed to expire at midnight. $$ 21
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 10:40 AM MST | High Wind Watch | RIW | Fremont, Hot Springs, Park | 3 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.