Alert archive / Wyoming / High Wind Warnings in 2017
High Wind Warning 10, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Mar 4, 2017, 5:56 AM MST for Fremont County, Natrona County, Sweetwater County, Wyoming. It was in force for 56 hr. 3 reports 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
- Mar 4, 2017, 5:56 AM MST (12:56 UTC)
- Expired
- Mar 6, 2017, 2:00 PM MST
- In force
- 56 hr
- 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 13:01 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 5, 7:03 PM MST | NON-TSTM WND GST 70 | 1 S Lander, WY | LANDER AIRPORT . |
| Mar 5, 7:43 PM MST | NON-TSTM WND GST 60 | 8 E Rock Springs, WY | ROCK SPRINGS AIRPORT . |
| Mar 5, 10:30 PM MST | NON-TSTM WND GST 64 | 6 Wsw Bar Nunn, WY | CASPER 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, 0.9 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3165 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
190 WWUS75 KRIW 041256 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 556 AM MST Sat Mar 4 2017 ...Occasional strong winds through Sunday evening... .Occasional strong southwest winds will occur before a cold frontal passage Sunday night. The strongest winds are expected this morning and again Sunday afternoon and evening. WYZ019-020-042300- /O.UPG.KRIW.HW.A.0009.170305T1500Z-170306T0500Z/ /O.NEW.KRIW.HW.W.0010.170304T1256Z-170306T0500Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 556 AM MST Sat Mar 4 2017 ...HIGH WIND WARNING IN EFFECT UNTIL 10 PM MST SUNDAY... The National Weather Service in Riverton has issued a High Wind Warning, which is in effect until 10 PM MST Sunday. The High Wind Watch is no longer in effect. * TIMING...Occasional strong southwest winds with the strongest winds expected this morning and again Sunday afternoon and evening. * WINDS...Southwest 25 to 40 mph with gusts over 60 mph. Wind gusts of 60 mph have been observed on Wyoming Boulevard on the south side of Casper early Saturday morning. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and highways 220 and 287; considerable blowover risk to high profile lightweight vehicles. Snow showers could combine with the winds to produce a period of blowing snow with limited visibility Sunday evening. 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. && $$
11 follow-up statements
208 WWUS75 KRIW 042127 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 227 PM MST Sat Mar 4 2017 ...After decreasing late Saturday, winds will increase again Sunday... .Occasional strong southwest wind is expected to increase again around sunrise Sunday and continue into Sunday evening ahead of an approaching cold front. The strongest wind will be in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. WYZ019-020-051400- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T0500Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 227 PM MST Sat Mar 4 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM MST SUNDAY... * TIMING...After decreasing late Saturday, strong southwest wind will increase around sunrise Sunday. The strongest wind will blow late Sunday morning through early Sunday evening. * WINDS...Southwest 25 to 40 mph with gusts around 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
087 WWUS75 KRIW 050800 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 100 AM MST Sun Mar 5 2017 ...Winds will increase again this morning...continuing into this evening before decreasing some... .Occasional strong southwest wind is expected to increase around sunrise and continue into this evening ahead of an approaching cold front. The strongest wind will be in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. WYZ019-020-052300- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T0500Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 100 AM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM MST THIS EVENING... * TIMING...Strong southwest wind will increase around sunrise. The strongest wind will blow later this morning through early evening. * WINDS...Southwest 25 to 40 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. 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. && $$
648 WWUS75 KRIW 051955 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1255 PM MST Sun Mar 5 2017 ...Very strong winds will continue through this evening from Jeffrey City to the Casper area... ...Very strong winds are then expected to develop across the lower elevations of Johnson County later this evening through 2 pm Monday... .Very strong to high winds will continue in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. A strong cold will move towards Johnson County later tonight with high winds expected ahead of and behind cold frontal passage. WYZ010-011-060500- /O.NEW.KRIW.HW.W.0011.170306T0600Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 1255 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 2 PM MST MONDAY... The National Weather Service in Riverton has issued a High Wind Warning, which is in effect from 11 PM this evening to 2 PM MST Monday. * TIMING...Strong west wind will increase further later this evening ahead of a strong cold front which will arrive later tonight into Monday morning. Very strong west winds will shift to the north by morning and continue much of Monday. * WINDS...West 30 to 40 mph with gusts around 60 mph...shifting to the north early Monday morning. * IMPACTS...Strong cross winds on area roads and highways including Interstate 25 and 90. There will be a a considerable blowover risk to high-profile, lightweight vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ019-020-060500- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T0500Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 1255 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM MST THIS EVENING... * TIMING...Strong southwest wind will continue through this evening ahead of a strong cold front. * WINDS...Southwest 25 to 40 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. 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. && $$
448 WWUS75 KRIW 052122 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 222 PM MST Sun Mar 5 2017 ...Very strong winds will continue through this evening from Jeffrey City to the Casper area... ...Very strong winds are then expected to develop across the lower elevations of Johnson County later this evening through 2 pm Monday... .Very strong to high winds will continue in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. A strong cold will move towards Johnson County later tonight with high winds expected ahead of and behind cold frontal passage. WYZ019-020-060500- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T0500Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 222 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM MST THIS EVENING... * TIMING...Strong southwest wind will continue through this evening ahead of a strong cold front. * WINDS...Southwest 25 to 40 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ010-011-060515- /O.CON.KRIW.HW.W.0011.170306T0600Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 222 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM MST MONDAY... * TIMING...Strong west wind will increase further later this evening ahead of a strong cold front which will arrive later tonight into Monday morning. Very strong west winds will shift to the north by morning and continue much of Monday. A period of snow will also accompany the cold front. * WINDS...West 30 to 40 mph with gusts around 60 mph...shifting to the north early Monday morning. * IMPACTS...Strong cross winds on area roads and highways including Interstate 25 and 90. There will be a a considerable blowover risk to high-profile, lightweight vehicles. * Other Impacts...The cold frontal passage will also be accompanied by a period of snow showers with near zero visibility due to the 50 to 60 mph winds and potential for 1 to 2 inches of snow from late tonight through early Monday afternoon. 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. && $$
792 WWUS75 KRIW 052218 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 318 PM MST Sun Mar 5 2017 ...Very strong to high winds across parts of Central Wyoming tonight into Monday... .Very strong to high winds will continue in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. A strong cold will move across the area tonight with high winds expected around the Lander Foothills this evening and across the lower elevations of Johnson County later this evening into early Monday afternoon. WYZ018-060630- /O.EXB.KRIW.HW.W.0010.000000T0000Z-170306T0700Z/ Lander Foothills- Including the city of Lander 318 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT... The National Weather Service in Riverton has issued a High Wind Warning, which is in effect until midnight MST tonight. * TIMING...Strong south to southwest wind ahead of a late evening cold front will produce the threat of high winds through midnight. Winds will remain strong at times though through Monday. * WINDS...Southwest 30 to 40 mph with gusts 60 to 65 mph * IMPACTS...Strong cross winds between Lander and Fort Washakie. There will be a a considerable blowover risk to high-profile, lightweight vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ019-020-060500- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T0500Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 318 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM MST THIS EVENING... * TIMING...Strong southwest wind will continue through this evening ahead of a strong cold front. * WINDS...Southwest 25 to 40 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. 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. && $$ WYZ010-011-060630- /O.CON.KRIW.HW.W.0011.170306T0600Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 318 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM MST MONDAY... * TIMING...Strong west wind will increase further later this evening ahead of a strong cold front which will arrive later tonight into Monday morning. Very strong west winds will shift to the north by morning and continue much of Monday. A period of snow will also accompany the cold front. * WINDS...West 30 to 40 mph with gusts around 60 mph...shifting to the north early Monday morning. * IMPACTS...Strong cross winds on area roads and highways including Interstate 25 and 90. There will be a a considerable blowover risk to high-profile, lightweight vehicles. * Other Impacts...The cold frontal passage will also be accompanied by a period of snow showers with near zero visibility due to the 50 to 60 mph winds and potential for 1 to 2 inches of snow from late tonight through early Monday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ Team Riverton
202 WWUS75 KRIW 060255 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 755 PM MST Sun Mar 5 2017 ...Very strong to high winds across parts of Central Wyoming tonight into Monday... .Very strong to high winds will continue in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. A strong cold will move across the area tonight with high winds expected around the Lander Foothills this evening and across the lower elevations of Johnson County later this evening into early Monday afternoon. WYZ019-020-060700- /O.EXT.KRIW.HW.W.0010.000000T0000Z-170306T2100Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 755 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 2 PM MST MONDAY... * TIMING...Locally strong southwest wind gusts will continue tonight ahead of a strong cold front...then increase some through Monday morning and into the afternoon. * WINDS...Southwest 25 to 35 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. 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. && $$ WYZ010-011-060700- /O.CON.KRIW.HW.W.0011.170306T0600Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 755 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM MST MONDAY... * TIMING...Strong west wind will increase further later this evening ahead of a strong cold front which will arrive later tonight into Monday morning. Very strong west winds will shift to the north by morning and continue much of Monday. A period of snow will also accompany the cold front. * WINDS...West 30 to 40 mph with gusts around 60 mph...shifting to the north early Monday morning. * IMPACTS...Strong cross winds on area roads and highways including Interstate 25 and 90. There will be a a considerable blowover risk to high-profile, lightweight vehicles. * Other Impacts...The cold frontal passage will also be accompanied by a period of snow showers with near zero visibility due to the 50 to 60 mph winds and potential for 1 to 2 inches of snow from late tonight through early Monday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ018-060700- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T0700Z/ Lander Foothills- Including the city of Lander 755 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * TIMING...Strong south to southwest wind ahead of a late evening cold front will produce the threat of high wind gusts through midnight. Winds will remain strong at times though through Monday. * WINDS...Southwest 20 to 30 mph with gusts 55 to 65 mph * IMPACTS...Strong cross winds between Lander and Fort Washakie. There will be a a considerable blowover risk to high-profile, lightweight vehicles. 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. && $$
774 WWUS75 KRIW 060654 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1154 PM MST Sun Mar 5 2017 ...Very strong to high winds across parts of Central Wyoming tonight into Monday... .Very strong to high winds will continue in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. A strong cold will move across the area tonight with high winds expected around the Lander Foothills this evening and across the lower elevations of Johnson County later this evening into early Monday afternoon. WYZ018-060800- /O.EXP.KRIW.HW.W.0010.000000T0000Z-170306T0700Z/ Lander Foothills- Including the city of Lander 1154 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT... Winds have decreased this evening and are quite light at the moment. Winds will increase later today and become gusty, however should remain well below warning criteria. $$ WYZ019-020-061000- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T2100Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 1154 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST MONDAY... * TIMING...Locally strong southwest wind gusts will continue tonight ahead of a strong cold front...then increase some through Monday morning and into the afternoon. * WINDS...Southwest 25 to 35 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. 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. && $$ WYZ010-011-061000- /O.CON.KRIW.HW.W.0011.000000T0000Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 1154 PM MST Sun Mar 5 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST MONDAY... * TIMING...Strong west wind will increase further later this evening ahead of a strong cold front which will arrive later tonight into Monday morning. Very strong west winds will shift to the north by morning and continue much of Monday. A period of snow will also accompany the cold front. * WINDS...West 30 to 40 mph with gusts around 60 mph...shifting to the north early Monday morning. * IMPACTS...Strong cross winds on area roads and highways including Interstate 25 and 90. There will be a a considerable blowover risk to high-profile, lightweight vehicles. * Other Impacts...The cold frontal passage will also be accompanied by a period of snow showers with near zero visibility due to the 50 to 60 mph winds and potential for 1 to 2 inches of snow from late tonight through early Monday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
470 WWUS75 KRIW 060826 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 126 AM MST Mon Mar 6 2017 ...Strong to high winds across parts of Central Wyoming today... .Very strong to high winds will continue in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. A strong cold will move across the area this morning with high winds expected across the lower elevations of Johnson County into this afternoon. Snow may also accompany this wind at times. WYZ019-020-062100- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T2100Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 126 AM MST Mon Mar 6 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...Locally strong southwest wind gusts will increase once again this morning...lasting into this afternoon. * WINDS...Southwest 25 to 35 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. 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. && $$ WYZ010-011-062100- /O.CON.KRIW.HW.W.0011.000000T0000Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 126 AM MST Mon Mar 6 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...Strong west winds will shift to the north or northwest this morning behind a cold front and continue into the afternoon. A period of snow will also accompany the cold front...reducing visibilities at times to less than a mile. * WINDS...West 30 to 40 mph with gusts around 60 mph...shifting to the north early Monday morning. * IMPACTS...Strong cross winds on area roads and highways including Interstate 25 and 90. There will be a a considerable blowover risk to high-profile, lightweight vehicles. * Other Impacts...The cold frontal passage will also be accompanied by a period of snow showers with very poor visibility due to the 50 to 60 mph winds and the potential for 1 to 2 inches of snow through early afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
686 WWUS75 KRIW 061250 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 550 AM MST Mon Mar 6 2017 ...Strong to high winds across parts of Central Wyoming today... .Very strong to high winds will continue in extreme southeast Fremont County, southwest Natrona County, and along the face and foothills of Casper Mountain. A strong cold will move across the area this morning with high winds expected across the lower elevations of Johnson County into this afternoon. Snow may also accompany this wind at times. WYZ019-020-062100- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T2100Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 550 AM MST Mon Mar 6 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...Locally strong southwest wind gusts will increase once again this morning...lasting into this afternoon. * WINDS...Southwest 25 to 35 mph with gusts 50 to 60 mph, mainly in extreme southeast Fremont County, southwest Natrona County, and along and near the foothills of Casper Mountain. This area includes Wyoming Boulevard on the south side of Casper. * IMPACTS...Strong cross winds on area roads and highways including Wyoming Boulevard on the south side of Casper, and US highways 220 and 287. There will be a a considerable blowover risk to high-profile, lightweight vehicles. * OTHER IMPACTS...Periods of snow showers with very poor visibility with potential for 1 to perhaps 2 inches of snow by early afternoon. 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. && $$ WYZ010-011-062100- /O.CON.KRIW.HW.W.0011.000000T0000Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 550 AM MST Mon Mar 6 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...Strong northwest to north wind, as well as snow and blowing snow will continue through early afternoon. Visibility in snow could be under a mile at times. * WINDS...Northwest to north 30 to 40 mph with gusts around 60 mph. * IMPACTS...Considerable blowover risk to high-profile, lightweight vehicles on west to east orientated roadways, including Interstate 90. * Other Impacts...Periods of snow with with very poor visibility at times due to the 50 to 60 mph winds, with the potential for 1 to 2 inches of snow through early afternoon. Roads will also be slick in most areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ Team Riverton/21
805 WWUS75 KRIW 061708 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1008 AM MST Mon Mar 6 2017 ...Strong to high winds across parts of Central Wyoming today... .Very strong to high winds will continue in extreme southeast Fremont County and southwest Natrona County through early this afternoon. A strong cold will move across the area this morning with high winds expected across the lower elevations of Johnson County into this afternoon. Snow will also accompany this wind creating blizzard conditions at times. WYZ020-061815- /O.CAN.KRIW.HW.W.0010.000000T0000Z-170306T2100Z/ Natrona County Lower Elevations- Including the city of Casper 1008 AM MST Mon Mar 6 2017 ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Riverton has cancelled the High Wind Warning. The high wind warning has been replaced by a winter weather advisory. Snow will continue through mid afternoon with a total of 3 to 5 inches expected for many areas. $$ WYZ019-062100- /O.CON.KRIW.HW.W.0010.000000T0000Z-170306T2100Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 1008 AM MST Mon Mar 6 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...Very strong west wind will continue once again this morning...lasting into this afternoon. An automated wind sensor near Muddy Gap reported a peak wind gust of 77 mph between 850 and 950 am this morning. Most areas were blowing 40 to 50 mph. * WINDS...Southwest 25 to 35 mph with gusts over 60 mph, mainly in extreme southeast Fremont County and southwest Natrona County. * IMPACTS...Strong cross winds on area roads and highways including US highways 220 and 287. There will be a a considerable blowover risk to high- profile, lightweight vehicles. * OTHER IMPACTS...Periods of snow showers with very poor visibility with potential for 1 to perhaps 2 inches of snow by early afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ010-011-062100- /O.CON.KRIW.HW.W.0011.000000T0000Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 1008 AM MST Mon Mar 6 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...Strong northwest to north wind, as well as snow and blowing snow will continue through early afternoon. Visibility in snow could be under a mile at times. * WINDS...Northwest to north 30 to 40 mph with gusts around 60 mph. * IMPACTS...Considerable blowover risk to high-profile, lightweight vehicles on west to east orientated roadways, including Interstate 90. * Other Impacts...Periods of snow with with very poor visibility at times due to the 50 to 60 mph winds, with the potential for 1 to 2 inches of snow through early afternoon. Roads will also be slick in most areas. 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. && $$
336 WWUS75 KRIW 062056 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 156 PM MST Mon Mar 6 2017 WYZ019-062200- /O.EXP.KRIW.HW.W.0010.000000T0000Z-170306T2100Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 156 PM MST Mon Mar 6 2017 ...HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON... The threat of high winds has diminished but very strong winds will continue the next several days. See our latest special weather statement for more details on the continued wind threat through at least mid week. $$ WYZ010-011-062200- /O.EXP.KRIW.HW.W.0011.000000T0000Z-170306T2100Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 156 PM MST Mon Mar 6 2017 ...HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON... Snow and wind is gradually diminishing across the area. The high wind warning for the area will be allowed to expire on time at 2 pm. Snowfall amounts have varied widely from less than an inch to reports over 4 inches further south from Kaycee into the southeast part of the county. $$ Skrbac
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 Mar 4, 2:14 AM MST, 3 hours 42 minutes earlier.
Area forecast discussion, Mar 4, 2:14 AM MST, 3 hours 42 minutes before
Area Forecast Discussion National Weather Service Riverton WY 214 AM MST Sat Mar 4 2017 .SHORT TERM...Saturday through Monday night All is mainly quiet at this late hour on Friday night. The one exception is across the southwestern wind corridor where we have had some 50 mph gusts. We threw around the idea of a high wind warning for today, but decided on a Special Weather Statement since the really strong wind should hold off until Sunday afternoon. As for today, the storm moving in from the west today continues to look less impressive, at least through Saturday night. Just about all areas look to have a mainly dry morning and many areas will be dry all through the day. In addition, with warmer temperatures in the valleys, some of the precipitation in the lower elevations may fall as rain. Even tonight, most of the models have backed off with the heaviest precipitation holding until Sunday. Meanwhile, another mild and dry day will be found East of the Divide. We will continue the trend of raising temperatures a few degrees each day with the snow continuing to melt. With the gradual melting of the snow and the thawing of the ground allowing for some absorption of the run off, the flooding risk looks to be less than back in February. However, it is NOT zero so it will still have to be watched. Sunday looks to be the active day as the cold front moves across the state. The heavy snow will move into the west as the front and trough axis approach and the left front quadrant of the jet approach. This has been the pattern all winter and will continue with this system. It does look like a quick hitter though so snow amounts should stay in the advisory range for a vast majority of areas. The heavy snow in the west should end by later Sunday night as a decent area of negative vorticity advection moves in from the west. Meanwhile, the story east of the Divide will be wind. With the tightening of the pressure gradient, 700 millibar winds increasing to 60 to 65 knots, downward momentum from the right front quadrant of the jet and good mixing from the approaching front, high winds look likely across the southwestern wind corridor. As a result, we will continue the high wind watch. The strongest winds should hold off until later Sunday afternoon into Sunday evening as the front approaches in this vicinity. Meanwhile, strong winds will be possible in places like Dubois and maybe even Riverton behind the front Sunday night as the flow turns northwest. Temperatures will be mild once again and snow melt will continue. Some showers will be possible Sunday evening with the frontal passage, but the flow does not look favorable for prolonged upslope flow. The exception, however, will be across the Bighorn range and northern Johnson County. Conditions could get nasty for a time later Sunday night into Monday morning with snow and a strong northwest wind. Most snow should die off by Monday afternoon with only some light orographic snow continuing in the west. Another wave may move into the west later Monday night but timing with that system is a bit inconsistent at this time. So, we kept things generic. Meanwhile, most areas east of the Divide will be blustery and cooler, but not anything unusual for early March. .LONG TERM...TUESDAY THROUGH SATURDAY Synopsis...A moist westerly flow will bring light snow to the western mountains and far west valleys Tuesday, with windy conditions across the southern half of Wyoming. Drier and warmer conditions will prevail Wednesday and Thursday, light snow tapering off across the west Tuesday night and Wednesday. A cold front will spread chances of mountain snow and valley rain across the north and west on Friday. Discussion...Synoptic pattern Tuesday morning features deep closed low pressure system over southern Ontario, Rex Block over the Bering Sea, central Pacific, WNW extends between these two features across the NW U.S. and Northern Rockies. Both GFS and ECMWF show broad ridge developing across the western and central U.S. midweek between upper low over the NE Pacific and eastern Canada. Spread between the two models increases afterwards with GFS shoving the NE Pacific low inland Friday and Saturday while ECWMF shows less changes to synoptic pattern over the Pacific and western U.S., maintaining broad ridge across the western U.S. with Pacific shortwaves riding over the top of the ridge. Forecast based more on ECMWF, favoring less drastic changes to upstream Rex Block. Isentropic upglide pattern takes shape across the west Tuesday for widespread stratiform snow event from around sunrise Tuesday through Tuesday evening. Windy conditions are expected along the lee slopes of the divide and along the Intestate 80 corridor. Significant warmup in store for the area Wednesday and Thursday with westerly flow remaining fairly strong, H7 temperatures rising to 0c to 4C on Thursday, so some 60+ degree readings likely in the warmest spots. Confidence remains low on Friday and Saturday forecast, but hinted at ECMWF's shortwave and associated cold front moving through area Friday with cooling trend and introduction of PoPs across the west and north. Impacts with this system appear minimal overall. Mild westerly flow is still the best bet next weekend with chances of precipitation confined mainly to the west. && .AVIATION.../12Z ISSUANCE/ VFR conditions will prevail across the forecast area through most of the forecast period. Gusty west to southwest winds will develop in the lee of the Continental Divide and across the wind Corridor from South Pass to Casper this morning...persisting through much of the rest of the forecast period. Additionally, low level wind shear will also be present and persistent across the region. Mid to low level clouds will begin to increase across west and northwest Wyoming late in the forecast period ahead of an approaching storm system...with possible MVFR in lower CIGS at KJAC and KPNA near the end of the forecast period. && .FIRE WEATHER... A slow warming trend will continue today for most areas. A system will move into the west and bring some rain and snow but amounts should remain on the light side today and tonight. Meanwhile, dry conditions are expected East of the Divide with some gusty winds across the southwestern Wind Corridor. Mixing and smoke dispersal will be generally fair to poor. Snow will return to the west on Sunday. High winds are likely from the Red Desert through Natrona County on Sunday, especially in the afternoon and evening. Mixing and smoke dispersal will improve to fair to good for most areas. && .RIW WATCHES/WARNINGS/ADVISORIES... High Wind Watch from Sunday morning through Sunday evening for WYZ019-020. && SHORT TERM...Hattings LONG TERM...AEM AVIATION...Braun FIRE WEATHER...Hattings
Hazardous weather outlook, Mar 4, 2:22 AM MST, 3 hours 34 minutes before
Hazardous Weather Outlook...CORRECTED National Weather Service Riverton WY 222 AM MST Sat Mar 4 2017 WYZ001>020-022>030-051100- 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- 222 AM MST Sat Mar 4 2017 ...High Wind Watch for the Green Mountains and Natrona County Sunday and Sunday evening... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and Tonight Strong winds likely across from the Red Desert through Casper. Light snow in the western mountains. .DAYS TWO THROUGH SEVEN...Sunday through Friday Sunday and Sunday Evening...Moderate to possibly heavy snow likely in the west. High winds possible from Rock Springs through Casper with strong winds possible in many areas East of the Divide. Sunday night and Monday...Moderate snow and strong wind possible in the Bighorn Mountains and Johnson County. Tuesday...Snow likely in the western mountains and far west valleys. Windy conditions across southern Wyoming. .SPOTTER INFORMATION STATEMENT... Spotters are urged to report any snowfall amounts and wind gusts past 50 mph. Thank you.
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 2:44 PM MST | Winter Weather Advisory | RIW | Fremont, Lincoln, Sublette, Sweetwater, Teton | 38 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.