Alert archive / Wyoming / Winter Storm Warnings in 2021
Winter Storm Warning 17, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at Oct 18, 2021, 4:01 AM MDT for Albany County, Converse County, Platte County, Wyoming. It took effect at Oct 19, 2021, 6:00 AM MDT. It was in force for 24 hr. 10 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
- Oct 18, 2021, 4:01 AM MDT (10:01 UTC)
- In effect from
- Oct 19, 2021, 6:00 AM MDT
- Expired
- Oct 20, 2021, 6:00 AM MDT
- In force
- 24 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Converse County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 132 km from the middle of the area, began a volume at 10:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 19, 4:30 PM MDT | SNOW 5.4 | 2 E Laramie, WY | VIA SOCIAL MEDIA. |
| Oct 19, 5:01 PM MDT | SNOW 4 | Laramie, WY | |
| Oct 19, 6:00 PM MDT | SNOW 4.5 | 14 Sw Fort Laramie, WY | |
| Oct 19, 7:00 PM MDT | SNOW 5 | 14 Sw Fort Laramie, WY | VIA SOCIAL MEDIA. |
| Oct 19, 7:00 PM MDT | SNOW 9.5 | 21 Ene Shirley Basin, WY | RECEIVED 0.2 IN OF RAIN WITH 9.5 IN OF SNOW AT 7 PM MDT. |
| Oct 19, 9:07 PM MDT | SNOW 9 | 4 Ne Curtis Gulch Campg, WY | LA PRELE CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8375 FEET. SNOW WATER EQUIVALENT IS 0.9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 12 HOURS. |
| Oct 19, 9:07 PM MDT | HEAVY SNOW 13 | 1 Ssw Windy Peak, WY | WINDY PEAK SNOTEL IN THE LARAMIE RANGE. ELEVATION 7900 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 12 HOURS. |
| Oct 20, 12:00 AM MDT | SNOW 2 | 7 Wsw Centennial, WY | CINNABAR PARK SNOTEL. ELEVATION 9574 FT. SWE IS 0.2 INCHES AND THE SLR USED WAS 10 TO 1. ACCUMULATION WAS 12AM 10/19 TO 12AM 10/20. |
| Oct 20, 12:00 AM MDT | SNOW 4 | 7 Wnw Centennial, WY | BROOKLYN LAKE SNOTEL. ELEVATION 10240 FT. SWE IS 0.4 INCHES AND THE SLR USED WAS 10 TO 1. ACCUMULATION WAS 12AM 10/19 TO 12AM 10/20. |
| Oct 20, 12:00 AM MDT | SNOW 4.8 | 6 N Vedauwoo, WY | CROW CREEK SNOTEL. ELEVATION 8330 FT. SWE IS 0.6 INCHES AND THE SLR USED WAS 8 TO 1. ACCUMULATION WAS 12AM 10/19 TO 12AM 10/20. |
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, 10.0 hours before the alert went out and 262 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
- 3014 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
972 WWUS45 KCYS 181001 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 401 AM MDT Mon Oct 18 2021 WYZ103-190000- /O.UPG.KCYS.WS.A.0011.211019T0000Z-211020T0600Z/ /O.NEW.KCYS.WS.W.0017.211019T0000Z-211020T0600Z/ North Laramie Range- Including the cities of Garrett and Esterbrook 401 AM MDT Mon Oct 18 2021 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT TUESDAY NIGHT... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 40 mph. * WHERE...Northern Laramie Range. * WHEN...From 6 PM this evening to midnight MDT Tuesday night. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ WYZ101-104-105-190000- /O.CON.KCYS.WS.A.0011.211019T0000Z-211020T0600Z/ Converse County Lower Elevations-Ferris/Seminoe/Shirley Mountains- Shirley Basin- Including the cities of Douglas, Glenrock, Bill, Deer Creek, Seminoe Dam, Medicine Bow, and Shirley Basin 401 AM MDT Mon Oct 18 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of 1 to 8 inches possible. Winds could gust as high as 40 mph. * WHERE...Converse County Lower Elevations, Ferris/Seminoe/Shirley Mountains, Shirley Basin. * WHEN...From this evening through Tuesday evening. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
5 follow-up statements
175 WWUS45 KCYS 181943 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 143 PM MDT Mon Oct 18 2021 WYZ101-190400- /O.UPG.KCYS.WS.A.0011.211019T0000Z-211020T0600Z/ /O.EXB.KCYS.WS.W.0017.211019T1200Z-211020T1200Z/ Converse County Lower Elevations- Including the cities of Douglas, Glenrock, Bill, and Deer Creek 143 PM MDT Mon Oct 18 2021 ...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches. Winds gusting as high as 35 mph. * WHERE...Converse County Lower Elevations. * WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ WYZ103-190400- /O.EXT.KCYS.WS.W.0017.211019T1200Z-211020T1200Z/ North Laramie Range- Including the cities of Garrett and Esterbrook 143 PM MDT Mon Oct 18 2021 ...WINTER STORM WARNING NOW IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 40 mph. * WHERE...Northern Laramie Range. * WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ104-105-190400- /O.UPG.KCYS.WS.A.0011.211019T0000Z-211020T0600Z/ /O.NEW.KCYS.WW.Y.0035.211019T0900Z-211020T1200Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Including the cities of Seminoe Dam, Medicine Bow, and Shirley Basin 143 PM MDT Mon Oct 18 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TUESDAY TO 6 AM MDT WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches with locally higher amounts possible in higher terrain. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin. * WHEN...From 3 AM Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ102-190400- /O.NEW.KCYS.WW.Y.0035.211019T1800Z-211020T1200Z/ Niobrara County- Including the cities of Lusk and Redbird 143 PM MDT Mon Oct 18 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TUESDAY TO 6 AM MDT WEDNESDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Niobrara County. * WHEN...From noon Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
732 WWUS45 KCYS 190042 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 642 PM MDT Mon Oct 18 2021 WYZ101-103-191200- /O.CON.KCYS.WS.W.0017.211019T1200Z-211020T1200Z/ Converse County Lower Elevations-North Laramie Range- Including the cities of Douglas, Glenrock, Bill, Deer Creek, Garrett, and Esterbrook 642 PM MDT Mon Oct 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches. Winds gusting as high as 35 mph. * WHERE...Converse County Lower Elevations. * WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ WYZ104-105-191200- /O.CON.KCYS.WW.Y.0035.211019T0900Z-211020T1200Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Including the cities of Seminoe Dam, Medicine Bow, and Shirley Basin 642 PM MDT Mon Oct 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TUESDAY TO 6 AM MDT WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches with locally higher amounts possible in higher terrain. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin. * WHEN...From 3 AM Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ102-191200- /O.CON.KCYS.WW.Y.0035.211019T1800Z-211020T1200Z/ Niobrara County- Including the cities of Lusk and Redbird 642 PM MDT Mon Oct 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO 6 AM MDT WEDNESDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Niobrara County. * WHEN...From noon Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
127 WWUS45 KCYS 191234 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 634 AM MDT Tue Oct 19 2021 WYZ101-103-200100- /O.CON.KCYS.WS.W.0017.000000T0000Z-211020T1200Z/ Converse County Lower Elevations-North Laramie Range- Including the cities of Douglas, Glenrock, Bill, Deer Creek, Garrett, and Esterbrook 634 AM MDT Tue Oct 19 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches. Winds gusting as high as 35 mph. * WHERE...Converse County Lower Elevations. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ104-105-200100- /O.CON.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Including the cities of Seminoe Dam, Medicine Bow, and Shirley Basin 634 AM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches with locally higher amounts possible in higher terrain. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ102-200100- /O.CON.KCYS.WW.Y.0035.211019T1800Z-211020T1200Z/ Niobrara County- Including the cities of Lusk and Redbird 634 AM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 AM MDT WEDNESDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Niobrara County. * WHEN...From noon Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
751 WWUS45 KCYS 192011 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 211 PM MDT Tue Oct 19 2021 WYZ101-103-200400- /O.CON.KCYS.WS.W.0017.000000T0000Z-211020T1200Z/ Converse County Lower Elevations-North Laramie Range- Including the cities of Douglas, Glenrock, Bill, Deer Creek, Garrett, and Esterbrook 211 PM MDT Tue Oct 19 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches. Winds gusting as high as 35 mph. * WHERE...Converse County Lower Elevations. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ NEZ002-095-200400- /O.EXB.KCYS.WW.Y.0035.211020T0000Z-211020T1200Z/ Dawes County-Northern Sioux County- Including the cities of Chadron, Chadron St Park, and Harrison 211 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM MDT WEDNESDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 4 inches. * WHERE...Dawes and northern Sioux County. * WHEN...From 6 PM this evening to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ106-115>117-200400- /O.EXA.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Central Laramie Range and Southwest Platte County-Laramie Valley- South Laramie Range-South Laramie Range Foothills- Including the cities of Bordeaux, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 211 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Snow. Additional snow accumulations of up to 2 to 5 inches with locally higher amounts. Winds gusting as high as 35 mph. * WHERE...Laramie Valley and Laramie Range. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ104-105-200400- /O.CON.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Including the cities of Seminoe Dam, Medicine Bow, and Shirley Basin 211 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches with locally higher amounts possible in higher terrain. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ102-200400- /O.CON.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Niobrara County- Including the cities of Lusk and Redbird 211 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Niobrara County. * WHEN...From noon Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
816 WWUS45 KCYS 200110 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 710 PM MDT Tue Oct 19 2021 WYZ115>117-200215- /O.CAN.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Laramie Valley-South Laramie Range-South Laramie Range Foothills- Including the cities of Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 710 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Most of the accumulating snow has ended around the southern Laramie Range tonight. Periods of snow showers or flurries may move across the area through midnight, but accumulations should be minimal. $$ WYZ101-103-201200- /O.CON.KCYS.WS.W.0017.000000T0000Z-211020T1200Z/ Converse County Lower Elevations-North Laramie Range- Including the cities of Douglas, Glenrock, Bill, Deer Creek, Garrett, and Esterbrook 710 PM MDT Tue Oct 19 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 2 to 6 inches in the lower elevations of Converse County with 8 to 14 inches in the mountains. Winds gusting as high as 35 mph. * WHERE...Converse County Lower Elevations. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ WYZ104-105-201200- /O.CON.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Including the cities of Seminoe Dam, Medicine Bow, and Shirley Basin 710 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 1 to 4 inches with locally higher amounts possible in higher terrain. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ102-201200- /O.CON.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Niobrara County- Including the cities of Lusk and Redbird 710 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Niobrara County. * WHEN...From noon Tuesday to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ106-201200- /O.CON.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 710 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Snow. Additional snow accumulations of up to 1 to 3 inches with locally higher amounts. Winds gusting as high as 35 mph. * WHERE...Laramie Valley and Laramie Range. * WHEN...Now through 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ002-095-201200- /O.CON.KCYS.WW.Y.0035.000000T0000Z-211020T1200Z/ Dawes County-Northern Sioux County- Including the cities of Chadron, Chadron St Park, and Harrison 710 PM MDT Tue Oct 19 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT WEDNESDAY... * WHAT...Wet snow expected. Total snow accumulations of 1 to 3 inches, mainly above 4000 feet. * WHERE...Dawes and northern Sioux County. * WHEN...From 6 PM this evening to 6 AM MDT Wednesday. * IMPACTS...Travel could be very difficult. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 18, 1:43 PM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Laramie, Niobrara, Platte | 40 hr |
Nearby
Winter Storm Warnings in Wyoming, 2021Every winter storm warning in 2021
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.