Alert archive / Wyoming / Winter Storm Warnings in 2017
Winter Storm Warning 17, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at Nov 16, 2017, 2:30 AM MST for Albany County, Carbon County, Wyoming. It took effect at Nov 16, 2017, 11:00 PM MST. It was in force for 24 hr. 42 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
- Nov 16, 2017, 2:30 AM MST (09:30 UTC)
- In effect from
- Nov 16, 2017, 11:00 PM MST
- Expired
- Nov 17, 2017, 11:00 PM MST
- In force
- 24 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY
The radar
The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 09:31 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 |
|---|---|---|---|
| Nov 17, 11:00 AM MST | SNOW 5 | 14 E Dixon, WY | BATTLE MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7440 FEET. SNOW WATER EQUIVALENT IS 0.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | SNOW 7 | 17 Sw Encampment, WY | SANDSTONE RANGER STATION SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8150 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | SNOW 7 | 35 S Rawlins, WY | SAGE CREEK BASIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7850 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | SNOW 10 | 17 Ene Riverside, WY | SOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 12 | 5 Sw Encampment, WY | WEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 13.2 | 10 Sw Encampment, WY | LITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS 1.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 13.2 | 6 Sw Centennial, WY | CINNABAR PARK SNOTEL IN THE SNOWY RANGE. ELEVATION 9574 FEET. SNOW WATER EQUIVALENT IS 1.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 14.4 | 10 Wsw Encampment, WY | OLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 14.4 | 11 Sse Encampment, WY | BLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 14.4 | 7 Nw Centennial, WY | BROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 16.6 | 19 Wsw Encampment, WY | DIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 16.6 | 2 Sw Hog Park Reservoir, WY | WHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 19.2 | 12 Wnw Centennial, WY | NORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 1.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 21.6 | 30 Wnw Laramie, WY | SAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 1.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 AM MST | HEAVY SNOW 24 | 21 Sse Elk Mountain, WY | MEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 2.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 2 | 28 E Savery, WY | WHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS .3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 8 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 2 | 35 S Rawlins, WY | SAGE CREEK BASIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7850 FEET. SNOW WATER EQUIVALENT IS .5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 5 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 4 | 10 Sw Encampment, WY | LITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS .5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 4 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 4 | 11 Sse Encampment, WY | BLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 4 | 17 Ene Riverside, WY | SOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 4 | 19 Wsw Encampment, WY | DIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS .5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 8 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 5 | 14 E Dixon, WY | BATTLE MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7440 FEET. SNOW WATER EQUIVALENT IS .7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 7 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 6 | 12 Wnw Centennial, WY | NORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS .6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 6 | 5 Sw Encampment, WY | WEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS .6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 7 | 7 Nw Centennial, WY | BROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS .7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 8 | 21 Sse Elk Mountain, WY | MEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS .8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 1:17 PM MST | SNOW 9 | 30 Wnw Laramie, WY | SAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS .9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 8 HOURS. |
| Nov 17, 11:00 PM MST | SNOW 5 | 14 E Dixon, WY | BATTLE MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7440 FEET. SNOW WATER EQUIVALENT IS 0.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | SNOW 7 | 17 Sw Encampment, WY | SANDSTONE RANGER STATION SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8150 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | SNOW 7 | 35 S Rawlins, WY | SAGE CREEK BASIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7850 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | SNOW 10 | 17 Ene Riverside, WY | SOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 12 | 5 Sw Encampment, WY | WEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 13.2 | 10 Sw Encampment, WY | LITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS 1.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 13.2 | 6 Sw Centennial, WY | CINNABAR PARK SNOTEL IN THE SNOWY RANGE. ELEVATION 9574 FEET. SNOW WATER EQUIVALENT IS 1.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 14.4 | 10 Wsw Encampment, WY | OLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 14.4 | 11 Sse Encampment, WY | BLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 14.4 | 7 Nw Centennial, WY | BROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 16.6 | 19 Wsw Encampment, WY | DIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 16.6 | 2 Sw Hog Park Reservoir, WY | WHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 19.2 | 12 Wnw Centennial, WY | NORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 1.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 21.6 | 30 Wnw Laramie, WY | SAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 1.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
| Nov 17, 11:00 PM MST | HEAVY SNOW 24 | 21 Sse Elk Mountain, WY | MEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 2.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 18 HOURS. |
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 00:00Z, 9.5 hours before the alert went out and 230 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
- 2474 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 341 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
123 WWUS45 KCYS 160930 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 230 AM MST Thu Nov 16 2017 ...Heavy Snow Likely For The Southeast Wyoming Mountains Thursday Night Through Friday Afternoon... WYZ112-114-162200- /O.UPG.KCYS.WS.A.0018.171117T0600Z-171118T0000Z/ /O.NEW.KCYS.WS.W.0017.171117T0600Z-171118T0000Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 230 AM MST Thu Nov 16 2017 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions. Tree branches could fall as well. Total snow accumulations of 9 to 17 inches are expected. * WHERE...Highest accumulations above 8500 feet in the Snowy and Sierra Madre Ranges. * WHEN...11 PM today to 5 PM Friday. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
8 follow-up statements
767 WWUS45 KCYS 162130 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 230 PM MST Thu Nov 16 2017 ...Heavy Snow Expected Over the Southeast Wyoming Mountains Tonight Through Friday Afternoon... WYZ112-114-171030- /O.CON.KCYS.WS.W.0017.171117T0600Z-171118T0000Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 230 PM MST Thu Nov 16 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions, including during the morning commute on Friday. Total snow accumulations of 5 to 8 inches, with localized amounts up to 17 inches, are expected. * WHERE...Highest accumulations above 8500 feet in the Snowy and Sierra Madre Ranges. * WHEN...11 PM Thursday night to 5 PM Friday. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause patchy blowing and drifting snow and low visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
160 WWUS45 KCYS 170256 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 756 PM MST Thu Nov 16 2017 ...Heavy Snow Expected Over the Southeast Wyoming Mountains Tonight Through Friday Afternoon... WYZ112-114-171200- /O.CON.KCYS.WS.W.0017.171117T0600Z-171118T0000Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 756 PM MST Thu Nov 16 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions, including during the morning commute Friday. Total snow accumulations of 8 to 15 inches, with localized amounts up to 17 inches, are expected. * WHERE...Highest accumulations above 8500 feet ovre the Snowy and Sierra Madre Ranges. * WHEN...Late this evening through Friday afternoon. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will create blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
613 WWUS45 KCYS 170316 CCA WSWCYS URGENT - WINTER WEATHER MESSAGE...CORRECTED National Weather Service Cheyenne WY 816 PM MST Thu Nov 16 2017 ...Heavy Snow Expected Over the Southeast Wyoming Mountains Tonight Through Friday Afternoon... WYZ112-114-171200- /O.COR.KCYS.WS.W.0017.171117T0600Z-171118T0000Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 816 PM MST Thu Nov 16 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Plan on difficult travel conditions, including during the morning commute Friday. Total snow accumulations of 8 to 15 inches, with localized amounts up to 20 inches, are expected. * WHERE...Highest accumulations above 8500 feet over the Snowy and Sierra Madre Ranges. * WHEN...Late this evening through Friday afternoon. * ADDITIONAL DETAILS...Winds gusting as high as 40 mph will create blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
620 WWUS45 KCYS 171000 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 300 AM MST Fri Nov 17 2017 ...Heavy Snow Expected Over the Southeast Wyoming Mountains Tonight Through Friday Afternoon... ...Snow and Blowing Snow Along Interstate 80 Near Arlington This Afternoon Through Tonight... WYZ112-114-180000- /O.EXT.KCYS.WS.W.0017.000000T0000Z-171118T0600Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 300 AM MST Fri Nov 17 2017 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Heavy snow and blowing snow occurring. Plan on difficult travel conditions, including during the evening commute. Tree branches could fall as well. Additional snow accumulations of 10 to 12 inches, with localized amounts up to 14 inches, are expected. * WHERE...Highest accumulations above 8500 feet over the Snowy and Sierra Madre Ranges. * WHEN...Until 11 PM today. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ WYZ110-180000- /O.NEW.KCYS.WW.Y.0031.171117T1800Z-171118T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 300 AM MST Fri Nov 17 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 11 PM MST THIS EVENING... * WHAT...Snow and blowing snow expected. Plan on slippery road conditions, including during the evening commute. In addition, areas of poor visibility are expected. Total snow accumulations of up to two inches, with localized amounts up to 4 inches, are expected. * WHERE...Along and south of Interstate 80 between mile markers 240 and 285. * WHEN...11 AM to 11 PM today. * ADDITIONAL DETAILS...Winds gusting as high as 50 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow and blowing snow means periods of snow and blowing snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
674 WWUS45 KCYS 171627 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 927 AM MST Fri Nov 17 2017 ...Heavy Snow Expected Over the Southeast Wyoming Mountains Tonight Through Friday Afternoon... ...Snow and Blowing Snow Along Interstate 80 Near Arlington This Afternoon Through Tonight... WYZ112-114-180230- /O.CON.KCYS.WS.W.0017.000000T0000Z-171118T0600Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 927 AM MST Fri Nov 17 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Heavy snow and blowing snow occurring. Plan on difficult travel conditions, including during the evening commute. Additional snow accumulations of 8 to 12 inches, with localized amounts up to 14 inches, are expected. * WHERE...Highest accumulations above 8500 feet over the Snowy and Sierra Madre Ranges. * WHEN...Until 11 PM tonight. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ WYZ110-180230- /O.EXT.KCYS.WW.Y.0031.171117T1627Z-171118T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 927 AM MST Fri Nov 17 2017 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow and blowing snow expected. Plan on slippery road conditions and snow packed roads in areas. In addition, areas of poor visibility are expected. Total snow accumulations of 2 to 5 inches are expected. * WHERE...Along and south of Interstate 80 between mile markers 240 and 285. * WHEN...Until 11 PM tonight. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow with visibilities around one quarter mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow and blowing snow means periods of snow and blowing snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
045 WWUS45 KCYS 172142 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 242 PM MST Fri Nov 17 2017 ...Heavy Snow Expected Over the Southeast Wyoming Mountains Tonight... ...Snow and Blowing Snow Along Interstate 80 Near Arlington This Afternoon Through Tonight... WYZ112-114-180600- /O.CON.KCYS.WS.W.0017.000000T0000Z-171118T0600Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 242 PM MST Fri Nov 17 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Heavy snow and blowing snow occurring. Plan on difficult travel conditions. Additional snow accumulations of 4 to 6 inches. Total snow accumulations of 7 to 14 inches. * WHERE...Highest accumulations above 8500 feet over the Snowy and Sierra Madre Ranges. * WHEN...Until 11 PM tonight. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ WYZ110-180600- /O.CON.KCYS.WW.Y.0031.000000T0000Z-171118T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 242 PM MST Fri Nov 17 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow and blowing snow expected. Plan on slippery road conditions and snow packed roads during the evening commute. In addition, areas of poor visibility are expected. Total snow accumulations of 2 to 5 inches. * WHERE...Along Interstate 80 between mile markers 240 and 285. * WHEN...Until 11 PM tonight. * ADDITIONAL DETAILS...Winds gusting as high as 45 mph will cause areas of blowing and drifting snow with visibilities around one quarter mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
923 WWUS45 KCYS 172237 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 337 PM MST Fri Nov 17 2017 ...Heavy Snow Will Continue Over the Southeast Wyoming Mountains Through Late This Evening... ...Snow and Blowing Snow Along Interstate 80 Near Arlington and the Laramie Valley and The Summit Through late This Evening... WYZ112-114-180600- /O.CON.KCYS.WS.W.0017.000000T0000Z-171118T0600Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 337 PM MST Fri Nov 17 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the evening commute. Additional snow accumulations of 4 to 6 inches are expected. * WHERE...Highest accumulations will occur above 8500 feet over the Snowy and Sierra Madre Ranges. * WHEN...Until 11 PM this evening. * ADDITIONAL DETAILS...Winds gusting as high as 35 mph will create some blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ WYZ115-116-180600- /O.EXA.KCYS.WW.Y.0031.000000T0000Z-171118T0600Z/ Laramie Valley-South Laramie Range- Including the cities of Bosler, Laramie, Buford, Pumpkin Vine, and Vedauwoo 337 PM MST Fri Nov 17 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Light to moderate snow occurring. Plan on slippery road conditions, including during the evening commute. Additional snow accumulations of up to two inches are expected. * WHERE...Laramie Valley including Laramie and the South Laramie Range. * WHEN...Until 11 PM this evening. * ADDITIONAL DETAILS...Winds gusting as high as 35 mph will create some blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$ WYZ110-180600- /O.CON.KCYS.WW.Y.0031.000000T0000Z-171118T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 337 PM MST Fri Nov 17 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Light to moderate snow occurring. Plan on slippery road conditions, including during the evening commute. In addition, some reductions to visibility are expected. Additional snow accumulations of 2 to 4 inches are expected. * WHERE...Along and south of Interstate 80 between mile markers 240 and 285. * WHEN...Until 11 PM this evening. * ADDITIONAL DETAILS...Winds gusting as high as 35 mph will create some blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. $$
816 WWUS45 KCYS 180551 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 1051 PM MST Fri Nov 17 2017 ...WINTER STORM WARNING AND WINTER WEATHER ADVISORIES WILL EXPIRE AT 11 PM MST THIS EVENING... WYZ112-114-180700- /O.EXP.KCYS.WS.W.0017.000000T0000Z-171118T0600Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 1051 PM MST Fri Nov 17 2017 ...WINTER STORM WARNING WILL EXPIRE AT 11 PM MST THIS EVENING... Light snow will continue over the Snowy and Sierra Madre mountains through midnight before ending overnight. $$ WYZ115-116-180700- /O.EXP.KCYS.WW.Y.0031.000000T0000Z-171118T0600Z/ Laramie Valley-South Laramie Range- Including the cities of Bosler, Laramie, Buford, Pumpkin Vine, and Vedauwoo 1051 PM MST Fri Nov 17 2017 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING... An area of light to moderate snow will taper off around midnight before ending overnight. $$ WYZ110-180700- /O.EXP.KCYS.WW.Y.0031.000000T0000Z-171118T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1051 PM MST Fri Nov 17 2017 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING... Light snow will continue for the Arlington and Elk Mountain areas through midnight before ending overnight. $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Nov 15, 10:15 PM MST, 4 hours 15 minutes earlier.
Area forecast discussion, Nov 15, 10:15 PM MST, 4 hours 15 minutes before
Area Forecast Discussion
National Weather Service Cheyenne WY
1015 PM MST Wed Nov 15 2017
.SHORT TERM...(This evening through Thursday)
Issued at 248 PM MST Wed Nov 15 2017
Dry and mild conditions expected to prevail over the CWA this
period. Attention will be focused on some strong winds which look
likely around the Arlington area later tonight through Thursday...
expanding into possible western Converse county by Thursday
afternoon as lee troughing develops along the Laramie Range in
response to a shortwave ejecting ENE across the northern Rockys
into Canada. Pattern not favorable for the Bordeaux area due to
the expected nearness of the sfc trough. Stronger mid-level winds
also farther north with high wind threat looking lower for
northern Carbon county so opted to drop that area from the high
wind watch, but still some gusty winds expected during the day in
that area.
.LONG TERM...(Thursday night through Wednesday)
Issued at 248 PM MST Wed Nov 15 2017
Main focus this period will be late Thursday night through most of
Friday with a pretty good snowfall event expected over the higher
mtns. An upper trough will move into the Pacific northwest
Thursday evening and sweep east and across the area Friday
evening. Moisture will increase ahead of this system and ride up
the west-facing slopes of the Sierra Madre/Snowy Ranges later
Thursday night and continue on Friday producing some good snows.
Should see in the neighborhood of a foot of snow there before the
upper trough swings across early Friday evening bringing snow to
an end. Will keep the Winter Storm Watch going but trimmed it a
bit due to the expected ending of snow early Friday evening.
Other concern will be for a potential Bora event for a time late
Friday afternoon and evening as a cold front sweep across the CWA.
NAM depicting some 40-50kt winds with some downward omega
spreading into the far se Wy plains so will have to watch.
Saturday looking breezy and cool. Milder and dry weather returns
Sunday into early next week but may have some strong winds in
favored areas later Monday as lee troughing deepens over the high
plains. Next cold front due about Wednesday.
&&
.AVIATION...(For the 06Z TAFS through 06Z Thursday evening)
Issued at 1015 PM MST Wed Nov 15 2017
VFR. SCT high clouds tonight, increasing and lowering Thursday.
Strong southwest surface winds and mountain wave turbulence will
impact aviation operations along and west of the Laramie Range
through Thursday. Gusts of 35-45 KT are forecast for terminals west
of the Laramie range, and 20-30 KT to the east. Introduced VCNTY SHRA
and 5000 FT CIGS at Rawlins Thursday evening ahead of cold front.
&&
.FIRE WEATHER...
Issued at 248 PM MST Wed Nov 15 2017
Fire weather concerns expected to be low for the rest of the week
through the weekend as a trend towards cooler temperatures sets in
and keeps weather factors mostly non-critical. The will be some
stronger winds Thursday around the mtns then a cold front will
sweep across the area later Thursday with a period of gusty winds
behind it. Snow will fall mainly over the mtns Thursday night and
Friday.
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Winter Storm Watch from Thursday evening through Friday
afternoon for WYZ112-114.
High Wind Warning from midnight tonight to 6 PM MST Thursday for
WYZ110.
High Wind Watch from Thursday morning through Thursday afternoon
for WYZ101.
NE...None.
&&
SHORT TERM...RE
LONG TERM...RE
AVIATION...MAJ
FIRE WEATHER...REHazardous weather outlook, Nov 15, 5:42 PM MST, 8 hours 48 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 542 PM MST Wed Nov 15 2017 WYZ101>119-170045- Converse County Lower Elevations-Niobrara County- North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- East Platte County-Goshen County-Central Carbon County- North Snowy Range Foothills-Southwest Carbon County- Sierra Madre Range-Upper North Platte River Basin-Snowy Range- Laramie Valley-South Laramie Range-South Laramie Range Foothills- Central Laramie County-East Laramie County- 542 PM MST Wed Nov 15 2017 This hazardous weather outlook is for portions of east central Wyoming...south central Wyoming and southeast Wyoming. .DAY ONE...TONIGHT Southwest winds will increase later tonight, especially for the wind prone areas along Interstate 80 between Laramie and Rawlins. Gusts of 45 to 55 mph are expected. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Strong southwest winds wil occur Thursday as a cold front approaches from the northwest. Wind gusts in excess of 60 mph are expected along and west of a line from Douglas to Arlington to Rawlins Thursday. This will create an increased blowoff and blowover risk for lightweight and high profile vehicles on Interstate 80 from Rawlins to Laramie and Interstate 25 from Douglas to Casper Thursday. High Wind Watches and Warnings are in effect for these locations Thursday. As the cold front moves through Carbon and Albany counties Thursday evening, heavy snow and blowing and drifting snow will develop across the Snowy and Sierra Madre Ranges. A Winter Storm Watch is in effect for the Snowy and Sierra Madre Ranges Thursday night through Friday night. .Spotter information statement... Spotter activation will not be required at this time. NEZ002-003-019>021-054-055-095-096-170045- Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne- North Sioux-South Sioux- 542 PM MST Wed Nov 15 2017 This hazardous weather outlook is for portions of western Nebraska. .DAY ONE...TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY The probability for widespread hazardous weather is low. .Spotter information statement... Spotter activation will not be required at this time.
In the hours before
Local storm report, Nov 16, 1:26 AM MST, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
126 AM MST THU NOV 16 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0115 AM NON-TSTM WND GST ELK MOUNTAIN 41.69N 106.41W
11/16/2017 M59 MPH CARBON WY AWOS
&&
GCLAYCOMThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 2:24 AM MST | High Wind Watch | CYS | Albany, Laramie | 22 hr |
Nearby
Winter Storm Warnings in Wyoming, 2017Every winter storm 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.