Alert archive / Wyoming / High Wind Warnings in 2018
High Wind Warning 16, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Nov 2, 2018, 11:46 AM MDT for Johnson County, Wyoming. It took effect at Nov 3, 2018, 12:00 AM MDT. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 2, 2018, 11:46 AM MDT (17:46 UTC)
- In effect from
- Nov 3, 2018, 12:00 AM MDT
- Expired
- Nov 3, 2018, 10:03 AM MDT
- In force
- 10 hr
- Issued by
- NWS Riverton, WY
County Johnson County, WY
The radar
The Riverton/Lander radar (KRIW), 187 km from the middle of the area, began a volume at 17:50 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 12:00Z, 5.8 hours before the alert went out and 182 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
- 1633 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 336 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
181 WWUS75 KRIW 021746 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1146 AM MDT Fri Nov 2 2018 ...Very Strong Winds in Parts of North, Central, and South- central Wyoming This Morning Into the Evening... ...Very Strong Winds in Northern Johnson County late Tonight through Saturday Morning... .An approaching weather system will bring with strong to very strong winds to a large part of the area Today. Some areas in from the Cody Foothills south to Sweetwater County could see very strong winds this morning into the evening. WYZ010-030200- /O.UPG.KRIW.HW.A.0015.181103T0600Z-181103T2100Z/ /O.NEW.KRIW.HW.W.0016.181103T0600Z-181103T1800Z/ Northeast Johnson County- Including the city of Buffalo 1146 AM MDT Fri Nov 2 2018 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT SATURDAY... The National Weather Service in Riverton has issued a High Wind Warning, which is in effect from midnight tonight to noon MDT Saturday. The High Wind Watch is no longer in effect. * TIMING...Midnight tonight through Noon Saturday * WINDS...Northwest 35 to 45 mph with gusts to 60 mph. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 25 and Interstate 90. 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. && $$ WYZ016-030200- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Upper Wind River Basin- Including the city of Dubois 1146 AM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...Northwest 35 to 45 mph with gusts to 60 mph expected. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways including 20 26 between Crowheart and Dubois. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ002-030200- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Absaroka Mountains- Including the city of Pahaska 1146 AM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. The strongest winds will likely be in the 2 pm to 5 pm timeframe. * WINDS...West 45 to 55 mph with gusts to 75 mph expected. Even stronger winds are possible between 2 pm and 5 pm this afternoon. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including highway 296 to Chief Joseph. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 50 mph or gusts of 75 mph or more can lead to property damage. && $$ WYZ003-030200- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Cody Foothills- Including the cities of Cody and Meeteetse 1146 AM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. The strongest winds will likely be between 2 pm and 5 pm this afternoon. * WINDS...West 35 to 45 mph with gusts to 60 mph. Even stronger winds over 80 mph are possible between Cody and Clark between 2 pm and 5 pm this afternoon. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along highway 120 between Meeteetse Rim and north to Cody and Clark. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ030-030200- /O.CON.KRIW.HW.W.0015.181102T1800Z-181103T0600Z/ East Sweetwater County- Including the city of Wamsutter 1146 AM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Noon today through midnight tonight. * WINDS...West 35 to 45 mph with gusts to 60 mph expected. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 80. 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. && $$ WYZ019-030200- /O.CON.KRIW.HW.W.0015.181102T1800Z-181103T0600Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 1146 AM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Noon today through midnight tonight. * WINDS...West 30 to 40 mph with gusts to 65 mph expected. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including 287 and 789 between Sweetwater Station and Muddy Gap. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
6 follow-up statements
110 WWUS75 KRIW 022051 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 251 PM MDT Fri Nov 2 2018 ...Very Strong Winds in Parts of North, Central, and South- central Wyoming This Morning Into the Evening... ...Very Strong Winds in Northern Johnson County late Tonight through Saturday Morning... .An approaching weather system will bring with strong to very strong winds to a large part of the area Today. Some areas in from the Cody Foothills south to Sweetwater County could see very strong winds this morning into the evening. WYZ016-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Upper Wind River Basin- Including the city of Dubois 251 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...Northwest 35 to 45 mph with gusts to 60 mph expected. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways including 20 26 between Crowheart and Dubois. 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. && $$ WYZ002-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Absaroka Mountains- Including the city of Pahaska 251 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. The strongest winds will likely be through 6 pm today. * WINDS...West 45 to 55 mph with gusts to 75 mph expected. Even stronger winds are possible through 5 pm this afternoon. A peak wind gust to 80 mph has already been reported on Chief Joseph Highway at 1 pm this afternoon. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including highway 296 to Chief Joseph. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 50 mph or gusts of 75 mph or more can lead to property damage. && $$ WYZ003-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Cody Foothills- Including the cities of Cody and Meeteetse 251 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. The strongest winds will likely be 6 pm today. Peak winds so far have been around 50 mph through 230 pm. * WINDS...West 35 to 45 mph with gusts to 60 mph. Even stronger winds over 80 mph are possible between Cody and Clark through 6 pm today. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along highway 120 between Meeteetse Rim and north to Cody and Clark. 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. && $$ WYZ030-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ East Sweetwater County- Including the city of Wamsutter 251 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Noon today through midnight tonight. Wind gusts around 55 mph have already been reported early this afternoon. * WINDS...West 35 to 45 mph with gusts to 60 mph expected. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 80. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ019-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 251 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...West 30 to 40 mph with gusts to 65 mph expected. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including 287 and 789 between Sweetwater Station and Muddy Gap. 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. && $$ WYZ010-030600- /O.CON.KRIW.HW.W.0016.181103T0600Z-181103T1800Z/ Northeast Johnson County- Including the city of Buffalo 251 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT SATURDAY... * TIMING...Midnight tonight through Noon Saturday * WINDS...Northwest 35 to 45 mph with gusts to 60 mph. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 25 and Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
668 WWUS75 KRIW 030031 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 631 PM MDT Fri Nov 2 2018 ...Very Strong Winds in Parts of North, Central, and South- central Wyoming through Midnight Friday Night... ...Very Strong Winds in Northern Johnson County late Tonight through Saturday Morning... .A strong storm system will continue to bring strong to high winds across across parts of the area this evening into Saturday morning. The strongest winds are expected from the Cody Foothills south to Sweetwater County through midnight, and then strongest winds are expected across northern Johnson County late tonight into Saturday morning. WYZ016-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Upper Wind River Basin- Including the city of Dubois 631 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...Northwest 35 to 45 mph with gusts to 60 mph expected. * MEASURED WINDS...48 mph at the Dubois Airport at 10 AM Friday morning. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways including 20 26 between Crowheart and Dubois. 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. && $$ WYZ002-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Absaroka Mountains- Including the city of Pahaska 631 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. Wind will gradually weaken this evening. * WINDS...West 45 to 55 mph with gusts to 75 mph expected. * MEASURED WINDS...80 mph along the Chief Joseph Highway at 1245 PM. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including highway 296 to Chief Joseph. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 50 mph or gusts of 75 mph or more can lead to property damage. && $$ WYZ003-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Cody Foothills- Including the cities of Cody and Meeteetse 631 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight, but the strongest winds look to already have occurred with a gradual weakening trend in most areas. * WINDS...West 35 to 45 mph with gusts to 60 mph. * MEASURED WIND....52 mph at the Cody Airport at 1230 PM Friday. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along highway 120 between Meeteetse Rim and north to Cody and Clark. 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. && $$ WYZ030-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ East Sweetwater County- Including the city of Wamsutter 631 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...West 35 to 45 mph with gusts to 60 mph expected. * MEASURED WINDS...59 mph at the Rock Springs Airport 537 PM Friday. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 80. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ019-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 631 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...West 30 to 40 mph with gusts to 65 mph expected. * MEASURED WINDS...46 mph at Jeffery City at 545 PM. 76 mph on a ridge top west of Muddy Gap by the Camp Creek RAWS at 250 PM. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including 287 and 789 between Sweetwater Station and Muddy Gap. 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. && $$ WYZ010-030845- /O.CON.KRIW.HW.W.0016.181103T0600Z-181103T1800Z/ Northeast Johnson County- Including the city of Buffalo 631 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT SATURDAY... * TIMING...Midnight tonight through Noon Saturday * WINDS...Northwest 35 to 45 mph with gusts to 60 mph. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 25 and Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ 21
782 WWUS75 KRIW 030305 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 905 PM MDT Fri Nov 2 2018 ...Very Strong Winds through midnight across Southeast Fremont and Eastern Sweetwater Counties through Midnight Friday Night... ...Very Strong Winds in Northern Johnson County late Tonight through Saturday Morning... .A strong storm system will continue to bring strong to high winds across southeast Fremont and eastern Sweetwater counties through about midnight tonight. Strong to high winds are then expected across northern Johnson County late tonight into Saturday morning. WYZ002-003-016-030415- /O.CAN.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Absaroka Mountains-Cody Foothills-Upper Wind River Basin- Including the cities of Pahaska, Cody, Meeteetse, and Dubois 905 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Riverton has cancelled the High Wind Warning. Winds have weakened significantly, and the high wind warning has been cancelled. $$ WYZ030-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ East Sweetwater County- Including the city of Wamsutter 905 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...West 35 to 45 mph with gusts to 60 mph expected. * MEASURED WINDs...59 mph at the Rock Springs Airport at 537 PM Friday. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 80. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ019-030600- /O.CON.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 905 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Through midnight tonight. * WINDS...West 30 to 40 mph with gusts to 65 mph expected. * MEASURED WINDS...47 mph occurred along Beaver Rim at 416 PM. 76 mph on a ridge top west of Muddy Gap measured by the Camp Creek RAWS at 250 PM. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including 287 and 789 between Sweetwater Station and Muddy Gap. 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. && $$ WYZ010-031115- /O.CON.KRIW.HW.W.0016.181103T0600Z-181103T1800Z/ Northeast Johnson County- Including the city of Buffalo 905 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT SATURDAY... * TIMING...Midnight tonight through Noon Saturday * WINDS...Northwest 35 to 45 mph with gusts to 60 mph. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 25 and Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
519 WWUS75 KRIW 030538 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1138 PM MDT Fri Nov 2 2018 ...Very Strong Winds in Northern Johnson County Saturday Morning... .A strong storm system will continue to bring strong to high winds across northern Johnson County Saturday morning. WYZ030-030645- /O.EXP.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ East Sweetwater County- Including the city of Wamsutter 1138 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT... Winds have weakened, and the high wind warning will be allowed to expire at midnight. $$ WYZ019-030645- /O.EXP.KRIW.HW.W.0015.000000T0000Z-181103T0600Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 1138 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT... Winds have weakened, and the high wind warning will be allowed to expire at midnight. $$ WYZ010-031800- /O.CON.KRIW.HW.W.0016.181103T0600Z-181103T1800Z/ Northeast Johnson County- Including the city of Buffalo 1138 PM MDT Fri Nov 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT SATURDAY... * TIMING...Through Noon Saturday * WINDS...Northwest 35 to 45 mph with gusts to 60 mph. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 25 and Interstate 90. 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. && $$ 21
530 WWUS75 KRIW 030844 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 244 AM MDT Sat Nov 3 2018 ...Very Strong Winds in Northern Johnson County This Morning... .A strong storm system will continue to bring strong to high winds across northern Johnson County this morning. WYZ010-031800- /O.CON.KRIW.HW.W.0016.000000T0000Z-181103T1800Z/ Northeast Johnson County- Including the city of Buffalo 244 AM MDT Sat Nov 3 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Through noon today. * WINDS...Northwest 35 to 45 mph with gusts to 60 mph. * IMPACTS...Blowover risk to high-profile, lightweight vehicles along area highways, including Interstate 25 and Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
433 WWUS75 KRIW 031603 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1003 AM MDT Sat Nov 3 2018 WYZ010-031715- /O.CAN.KRIW.HW.W.0016.000000T0000Z-181103T1800Z/ Northeast Johnson County- Including the city of Buffalo 1003 AM MDT Sat Nov 3 2018 ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Riverton has cancelled the High Wind Warning. The strongest winds have ended so the high wind warning has been cancelled. Wind gusts to 40 to 50 mph will still be possible into the afternoon. $$
What forecasters said that day
The local office's own words before this high wind warning 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 warning went out at Nov 2, 11:15 AM MDT, 31 minutes earlier.
Area forecast discussion, Nov 2, 11:15 AM MDT, 31 minutes before
Area Forecast Discussion National Weather Service Riverton WY 1115 AM MDT Fri Nov 2 2018 .SHORT TERM...Today through Sunday night Issued at 210 AM MDT Fri Nov 2 2018 A much stronger system will move in quickly today from the northwest and race southeast across the area this afternoon and evening. The northwest mountains will likely see 3 to 8 inches from this storm with the southwest mountains more in the 2 to 6 inch range. Very strong mountain top flow, rapidly falling pressures in eastern WY and front causing rapid rises in eastern ID will set the stage for strong to possibly high winds across much of the area. The Cody Foothills and east slope of the Absarokas could see a mountain wave event with 35-40kt into the barrier and upstream sounding showing a mountain top inversion (around H7). Models currently look like the waves will be close to breaking but not reflecting at the surface. Still, I don't see anything to stop the higher winds aloft from mixing down so nearby showers could easily bring high winds down to the surface. The Dubois area also looks quite windy. A High Wind Warning has been issued for these areas from 9 AM through midnight. Strongest winds will probably be mid-day through early evening. Eastern Sweetwater up to the Green Mountains area will also see high winds. Strong pressure gradient and 50kt H7 winds will mix down and cause high winds. So, a High Wind Warning has been issued for today from noon until midnight. There will probably be a few rain showers east of the divide with trough passage Friday evening. Another southward moving upper low will move across far western SD late Friday night into Saturday morning with strong north wind developing around BYG. With a tight post-frontal gradient out of a favorable direction Saturday morning we thought a High Wind Watch was warranted. A period of rain showers will likely drop southward ahead of this system and with frontal passage. Temps will be mild Friday (mid 50s to lower 60s) so it'll take quite a drop to change any showers over to snow but there could be some transition trying early Saturday before snow chances increase by sunrise Saturday. The showers look to taper off in most areas Saturday morning with gusty winds continuing until mid afternoon. The next and possibly strongest system yet approaches Sunday with snow rapidly developing in the northwest in the early morning and spreading south east through noon. There will likely be some solid advisory amounts from this storm with the potential for some warning amounts due to steep lapse rates setting up to work on favorable jet streak dynamics, qg forcing and very favorable dendritic growth zone temps by Sunday evening. Many areas will be windy again with this system. Many of the areas east of the divide will be rain during the day Sunday but will quickly change over to snow after sunset. .LONG TERM...Monday through Friday Issued at 210 AM MDT Fri Nov 2 2018 Snow lingers over the mountains on Monday. Some snow to occur east of the divide Monday morning before ending in the afternoon. Minor snowfall accumulation is expected at this time. Cold day expected on Monday. The unsettled weather pattern continues Monday night through Wednesday in a moist NW flow aloft. Periods of snow for the mountains with some valley snow at times in the west. As for precipitation east of the divide, most places will be dry, but some rain or snow showers could occur in the north Wednesday into Wed evening. Brisk wind at times over the region Tue through Wed. Precipitation decreases and ends later Wed night. Thursday looks dry and cold for the area. Next Friday the models differ with the GFS showing yet another weather system impacting the west. The ECMWF model is dry next Friday in the west until late in the day. Will go with isolated mountain snow showers for now and see how things look in future model runs. && .AVIATION...For the 12Z TAFS through 12Z Saturday morning Issued at 210 AM MDT Fri Nov 2 2018 West of the Continental Divide...(KJAC, KRKS, KPNA, KBPI) Another wave of mountain snow/valley rain pull across the area in the afternoon into the overnight hours. Although the best shot for precip will once again occur over the far west, there will be a chance for some shower activity impacting the entire area. The heaviest and most widespread precip is expected to impact the area between between 21Z Friday and 03Z Saturday. MVFR conditions are likely at times at KJAC terminal especially in the 21Z and 03Z time frame. Very windy and/or low-level wind shear is expected for much of the TAF period before lessening by around 12Z Saturday. East of the Continental Divide...(KCPR, KCOD, KRIW, KLND, KWRL) The main concern will be very windy westerly wind and/or low-level wind shear developing over much of the area and lasting through the night in some places. Scattered mountain snow/valley rain showers are expected to redevelop by mid to late afternoon, and spread southeast across the area. These showers will aid in mixing some very strong winds down to the surface. Although showers will decrease by late evening, some areas especially over the east could see some activity continue through the night. Mainly dry conditions are expected for most of Saturday with less wind. Please see the Aviation Weather Center and/or CWSU ZDV and ZLC for the latest information on icing and turbulence forecasts. && .FIRE WEATHER... Issued AT 210 AM MDT Fri Nov 2 2018 Today will once again see snow in the western mountains with strong to very strong winds developing across many areas. The strongest winds will likely extend from the Cody Foothills south to Dubois and in the wind corridor from Eastern Sweetwater County through the Green Mountains. Temperatures and minimum RHs will increase from yesterday in most areas. && .RIW WATCHES/WARNINGS/ADVISORIES... High Wind Warning from 9 AM this morning to midnight MDT tonight for WYZ002-003-016. High Wind Warning from noon today to midnight MDT tonight for WYZ019-030. High Wind Watch from late tonight through Saturday afternoon for WYZ010. && SHORT TERM...Hulme/Skrbac LONG TERM...AR AVIATION...Hattings FIRE WEATHER...Hulme
Hazardous weather outlook, Nov 2, 3:21 AM MDT, 8 hours 25 minutes before
Hazardous Weather Outlook National Weather Service Riverton WY 321 AM MDT Fri Nov 2 2018 WYZ001>020-022>030-031100- Yellowstone National Park-Absaroka Mountains-Cody Foothills- North Big Horn Basin-Southwest Big Horn Basin- Southeast Big Horn Basin-Owl Creek and Bridger Mountains- Bighorn Mountains West-Bighorn Mountains Southeast- Northeast Johnson County-Southeast Johnson County- Teton and Gros Ventre Mountains-Jackson Hole- Wind River Mountains West-Wind River Mountains East- Upper Wind River Basin-Wind River Basin-Lander Foothills- Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain-Star Valley- Salt River and Wyoming Ranges-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- 321 AM MDT Fri Nov 2 2018 ...High Wind Warning for parts of North, Central, and South- central Wyoming this Morning through Midnight... ...High Wind Watch for Northern Johnson County from Midnight Tonight through Saturday Afternoon... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and Tonight Strong to potential high winds for parts of North, Central, and South-Central Wyoming. Strong wind possible in Northern Johnson County late tonight. Snow is expected to increase across the western mountains this evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Saturday...Snow is expected to continue across the western mountains Saturday morning. Very windy conditions are possible in Northern Johnson County Saturday. Sunday and Sunday night...Snow likely in the western mountains. A chance of rain and snow western valleys. A chance of rain and snow east of the divide Sunday night into Monday morning. .SPOTTER INFORMATION STATEMENT... Spotters are urged to report snowfall amounts. Thank you.
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 2, 2:58 AM MDT | High Wind Watch | RIW | Johnson | 9 hr |
| Nov 2, 2:58 AM MDT | High Wind Warning | RIW | Fremont, Hot Springs, Natrona, Park, Sweetwater | 21 hr |
| Nov 2, 1:17 PM MDT | Winter Storm Watch | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Teton | 25 hr |
| Nov 2, 1:17 PM MDT | Winter Weather Advisory | RIW | Fremont, Lincoln, Sublette, Teton | 8 hr |
| Nov 2, 4:29 PM MDT | Special Weather Statement | RIW | Teton | 31 min |
Nearby
High Wind Warnings in Wyoming, 2018Every high wind warning in 2018
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.