Southern Rocky Mountain Front storm history

A major late season winter storm affected much of the Rocky Mountain Front from June 8th to June 10th. The snow began to fall at higher elevations on Friday evening, with rain at the lower elevations. Buy Saturday morning, heavy snow was falling across the entire Rocky Mountain F…

Wunderground sensor KMTAUGUS3 Upper Elk Creek measured a 64 mph gust. Given this zone does not have many sensors that are not sheltered, this 64 mph gust is treated as sufficient for verification purposes, even with the zone criteria being 75 mph.

Wunderground sensor Upper Elk Creek (KMTAUGUS3) Measured a 71 mph gust. While this does not satisfy the typical higher criteria of 75 mph for this zone, the overwhelming pile of evidence supporting a high-end wind day in addition the fact that there are no Windy sensors in this z…

A personal weather station at Upper Elk Creek, RAWS station GSNM8 Gleason, and MT DOT sensor MTROG Rogers Pass measured gusts in excess of 60 mph, including a peak gust of 82 mph at Upper Elk Creek.

A personal weather device at Upper Elk Creek measured a 72 mph gust. Additionally, the Gleason RAWS GSNM8 measured a 61 mph gust.

Mesonet station GSNM8 Gleason RAWS measured a 64 mph wind gust.

Montana mesonet station Dog Gun Lake E measured sustained winds, averaged over 2 hours, of 50 mph. Additional sites including Two Medicine Bridge and Browning (MTDOT) measured gusts in excess of 58 mph, but short of 75 mph. The peak gust at Dog Gun Lake E was 74 mph.

Snotel equipment at Dupuyer Creek estimated 9 inches new snow the evening of the 12th into the 13th.

The Sandbar 2 fire was a lightning start fire near Rogers and Flesher Passes (15 miles E of Lincoln). Overall the fire burned 243 acres of timber and logging slash before being fully contained in mid September. No damage to structures were reported.

Snotel equipment at Badger Pass estimated 9 inches new snow over 24 hours.

Upper Elk Creek Mesonet site measured a 66 mph wind gust.

Snotel equipment at Copper Bottom estimates 9 inches new snow over 24 hours.

Snotel equipment at Copper Camp estimated a chance in snow depth of 9 inches between 4 PM Jan 31 and 1 PM Feb 1.

Wunderground station Upper Elk Creek, near Elk Creek rd measured a 60 mph gust.

Wunderground sensor Upper Elk Crek KMTAUGUS3 measured a 74 mph gust. Additionally, wunderground sensors Goss Ranch KMTAUGUS4 (66 mph gust) and 18 WSW Augusta KMTAUGUS24 (66 mph) measured strong gusts.

Wunderground sensor Goss Ranch KMTAUGUS4 measured gusts of 62 and 66 mph. Additionally, Wundergound sensor Upper Elk Creek KMTAUGUS3 measured gusts of 60 and 63 mph.

Wunderground station KMTAUGUS3 Upper Elk Creek measured a 61 mph gust.

Wunderground sensor Upper Elk Creek KMTAUGUS3 measured a 58 mph gust.

Mesonet station KMTAUGUS3 Upper Elk Creek measured a 61 mph gust.

Mesonet station KMTAUGUS4 Goss Ranch measured a 58 mph gust.

Wunderground station KMTBTNUM11 Meltwater Cabin measured a 60 mph gust.

Snotel equipment at Mount Lockhart estimated 20 inches of new snow over 24 hours. Additionally, Snotel equipment at Dupuyer Creek estimated 13 inches new snow over the same timeframe.

Snotel equipment at Mount Lockhart estimated 16 inches of new snow over 24 hours. Additionally, a personal weather station along the Southern Rocky Mountain Front measured a wind gust of 60 mph, suggesting blowing snow was also an impact.

SNOTEL equipment at Wood Creek estimated 10 inches of new snow over the duration of the event.

Public report via social media with pictures showing 16 to 20 inches of snowfall. Times estimated.

Mesonet station RICMT Rice Ridge measured 59 mph wind gust.

Snotel equipment at Copper Camp observed the long duration snow event. Through 10AM MDT Wednesday the 25th, 9 inches new snow was estimated. Thereafter, an additional 6 inches of snow fell, totaling 15 inches for the entire event.

A persistent band of moderate to heavy snow resulted in high snow amounts. The Dupuyer Creek and Mount Lockhart Snotels both estimated 7 inches new snow over 12 hours or less. Mount Lockhart estimated 10 inches in 12 hours with Dupuyer Creek reporting 7 inches in 8 hours.

Snotel equipment at Mount Lockhart and Dupuyer creek both estimated 11 inches of new snow.

Snotel Dupuyer Creek estimated 10 inches storm total snow, with 7 inches falling over 12 hours.

Two snotels reported an estimated 8 inches of storm total snow. Snotel sites Copper Bottom and Copper Camp estimated an event total amount of 8 inches. Most fell within a 12 hour period. Start time estimated by radar.

Public report Morris Ranch station reported 57 mph wind gust.

Automated equipment at Dupuyer Creek estimated an event total of 15 inches of snow, with 14 inches falling over a 24 hour period.

Automated equipment at Mount Lockhart estimated an event total of 15 inches of snow, with 13 inches falling over a 24 hour period.

Automated equipment at Copper Camp estimated an event total of 20 inches of snow.

Automated equipment at Waldron estimated an event total of 14 inches of snow, with 8 inches falling over a 24 hour period.

Snotel Mount Lockhart measured 7 inches new snow in 12 hours.

Dupuyer Creek SNOTEL automated equipment estimated 15 inches of new snow over 22 hours.

One location measured a wind chill of -40 F or less, which was the Benchmark RAWS (BEFM8) which measured a minimum wind chill of -41 F.

Trained spotter approximately 17 miles west-southwest of Bynum (close to the border of MT zones 307 and 308) reported blizzard conditions for 7 hours. A local volunteer fire department submitted photos from Stonewall Mountain of a communications tower being downed due to the weig…

The Dupuyer Creek Snotel measured 12 inches new snow over 24 hours.

Snotel Mount Lockhart measured 10 inches new snow over 24 hours.

Automated SNOTEL equipment at Mount Lockhart, located approximately 24 miles west of Bynum estimated 10 inches of snow over a 24-hour period.

Automated SNOTEL equipment at Dupuyer Creek, located approximately 15 miles southwest of Dupuyer estimated 12 inches of snow over a 24-hour period.

Social media report of 20 inches accumulation at Teton Pass Ski Resort.

Extreme critical fire weather concerns on top of a quickly moving cold front bringing strong wind gusts in excess of 50 mph accelerated a grass fire in Pondera County along Highway 91, three miles north of Conrad, named the Pondera County Fire. The fire was estimated to have burn…

Ambient sensor measured a 60 mph gust just south of Riebeling.

Ambient weather station measured 65 mph wind gust near Bartsch Farms.

Mesonet station DELMT (Dellwo) measured 60 mph wind gust.

Several sensors across this zone measured gusts greater than or equal to 58 mph, including mesonet station TR276 L-C Portable No.1 which measured a gust of 78 mph.