Shirley Basin storm history

Wyoming State Highway Patrol responded around 5:35 PM MDT near milepost 281 along United States Highway 30 and 287 to a two-vehicle accident that claimed the life of an 18-year-old female driver after a vehicle lost control due to excessive speed for the reported icy road conditi…

Brief gust of 61 MPH late in the afternoon at Shirley Rim WYDOT site.

Strong wind gusts of 58 and 61 MPH were reported at an isolated observation sensor northwest of Medicine Bow.

Mesonet station reported 61 mph wind gust with passing shower.

WY-77 was closed south of Shirley Basin for an extended period of time due to winter conditions. A webcam along WY-77 showed snow covered roads.

WYDOT sensor along Highway 487 reported a gust of 58 mph.

Shirley Basin Western Weather Group observation site reported a peak wind gust of 62 mph.

Snowplow crew on State Highway 77 reported 6 inches of snow. Highway 77 was also closed due to dangerous driving conditions.

Peak gust of 60 mph occurred at the Shirley Basin (PC574) 12 miles south of Shirley Basin at 9:50 AM on February 23rd. Multiple other gusts between 60 and 65 mph were reported in this zone.

Peak gust of 61 mph occurred at the Medicine Bow CWOP site 2 miles west of Medicine Bow at 1:10 PM on February 13th.

Frequent wind gusts of 58 to 62 MPH were observed at a mesonet station in the Shirley Basin. A maximum wind gust of 63 MPH was observed at the PacifiCorp sensor (12 S Shirely Basin) at 12:10 PM MST on 1/21.

Overnight low temperatures fell to near -20 F across northern Carbon County near Shirley Basin from 1/20 into 1/21, with daytime highs generally remaining below -5 F during the afternoon on 1/20. The combination of cold temperatures and gusty winds resulted in a prolonged period …

WYDOT mesonet station along WY487 at Shirley Rim (WY44) measured sustained winds over 40 mph for the hour.

WYDOT mesonet station Shirley Rim (WY44) along Wyoming Highway 487 located 2 miles northwest of Shirley Basin reported sustained winds over 40 mph for over an hour. The maximum observed wind gust was 57 mph during this period.

A second wave of extreme cold occurred across northern Carbon County near Shirley Basin from 1/14 through 1/16, with minimum observed air temperatures ranging from -25 F to -35 F. The cold temperatures combined with gusty winds resulted in a prolonged period of extreme wind chill…

Overnight low temperatures fell to near -25 F across northern Carbon County near Shirley Basin from 1/12 into 1/13, with daytime highs generally remaining below -10 F during the afternoon on 1/13. The combination of cold temperatures and gusty winds resulted in a prolonged period…

Multiple UPR sensors suggest wind gusts reached or exceeded 58 MPH in the vicinity of Highway 287 between Rock River and Medicine Bow.

Estimated wind gust based on RAWS sensor near the zone border.

Medicine Bow CWOP site estimated these strong winds.

The official 24-hour NOHRSC gridded snowfall analysis ending at 5:00 AM MST on 10/13 indicates that widespread 3 to 6 inches of snow fell across Shirley Basin.

A combination of nearby public reports and the NOHRSC National Snowfall Analysis indicate that 12 to 24 inches of snow fell across the Shirley Basin. Periods of near-blizzard conditions were also observed at Shirley Rim along Wyoming Highway 487.

WYDOT site Shirley Rim (2 miles northwest of Shirley Basin) reported these winds.

WYDOT mesonet station Shirley Rim reported sustained winds over 40 mph with a maximum wind gust of 50 mph during this period.

WYDOT site Shirley Rim, 2 miles northwest of Shirley Basin reported strong winds.

Emergency manager reported ongoing search and rescues for utility workers attempting to restore power to the area and for families trapped in their homes near the town of Medicine Bow due to snow drifts up to 14 feet high.

WYDOT site Shirley Rim reported these sustained winds.

WYDOT mesonet station Shirley Basin (WY44) along Wyoming Highway 487 reported wind chills as low as 52 degrees below zero.

Observer reported 6-12 inches of new snowfall Still snowing hard. All roads closed around their location.

Shirley Rim WYDOT site WY44 reported these wind gusts.

Overnight low temperatures fell to as low as -31 F from 12/21 into 12/22, with daytime highs generally remaining below -15 F during the afternoon on 12/22. Sustained winds 15-25 MPH resulted in a prolonged period of extreme wind chills under -30 F. The most extreme wind chills oc…

Estimated wind gust from WYDOT mesonet station Shirley Basin and nearby observations.

A trained weather spotter located at the Virginian Hotel in Medicine Bow reported one-tenth of an inch of ice accumulation, followed by 8-10 inches of snowfall over 48 hours. A maximum total of 15-17 inches was reported by a trained spotter near Shirley Basin.

Estimated wind gusts in excess of 58 mph from nearby observation sites. All wind sensors were down in the zone. Estimated times from surrounding areas wind occurrences.

A total snowfall amount of 3.5 inches was measured in the town of Medicine Bow.

Estimated wind gusts of 60 mph based on nearby mesonet stations.

Estimated wind gust near Shirley Rim.

Union Pacific Railroad mesonet station MEDIC1 (UP087) measured maximum wind gust 2 miles east-southeast of Medicine Bow.

WYDOT sensor near the zone border reported high winds. WYDOT sensor at Shirley Rim was out for maintenance.

Total snowfall ranged from 3 to 6 inches across Shirley Basin, per estimates from the NOHRSC Interpolated Snowfall Analysis. Wyoming Route 487 was closed from Medicine Bow to Wyoming Route 220 due to winter conditions.

A UPR sensor located 2 ESE of Medicine Bow recorded a minimum wind chill of -33 degrees F at 4:16 AM MST on 2/23.

Union Pacific Railroad mesonet station measured maximum wind gust near the town of Medicine Bow.

Occasional wind gusts 55-60 MPH were observed at multiple Mesonet stations across Shirley Basin.

Union Pacific Railroad mesonet station MEDIC1 (UP087) measured sustained winds greater than 40 MPH for over an hour 2 miles east-southeast of Medicine Bow. Maximum wind gust of 57 MPH was measured during this period.

WYDOT mesonet station Shirley Rim (WY44) measured maximum wind gust along WY487 2 miles northwest of Shirley Basin.

WYDOT mesonet station Shirley Rim (WY44) 2 miles northwest of Shirley Basin along WY487 measured maximum wind gust at 8:46 PM MST on the 11th.

A trained spotter reported 5 to 8 inches of snow in Shirley Basin.

WYDOT mesonet station Shirley Rim (WY44) along WY487 measured maximum wind gust 2 miles northwest of Shirley Basin at 10:30 AM MST on December 8th.

Sporadic wind gusts to 58 MPH were recorded by WYDOT/UPR sensors near Shirley Rim/Medicine Bow during the early morning hours on 12/5.

WYDOT mesonet station Shirley Rim (WY44) along WY487 measured maximum wind gust 2 miles northwest of Shirley Basin.

Estimated 5 inches of snow on the ground.