Jefferson storm history

Mesonet station MTBLS Boulder South Mt-69 Mp 27.7 measured a 61 mph wind gust.

Sherriff's office reports substantial standing water on Highway 69 near mile markers 17 and 11, and on Highway 55 near mile marker 8.

Trained spotter reports hail slightly larger than quarter sized.

Mesonet station MTSPK Spokane Creek Us-287 Mp 55.7 measured a 58 mph wind gust.

Public weather station measured a severe caliber gust.

The DOT sensor at Spokane Creek MTSPK measured a 58 mph gust along US-287 at mile marker 55.7.

Emergency manager relayed photos, and several photos were received via social media, of a well documented tornado in the Whitetail Basin. No structural damage occurred and most areas were inaccessible to the NWS storm survey team.

Public reported quarter size hail.

Jefferson County Sheriff's Office reported Milligan Canyon Road was washed out in several locations due to heavy rainfall.

Trainer spotter reported hail falling between dime and quarter size.

Mesonet station tibm8 Tizer basin SNOTEL.

Mesonet station RKPM8 Rocker Peak snotel.

Via spotter report.

Trained spotter reported 0.43 inches of heavy rain measured in 20 minutes.

Trained spotter reported 1 inch of rainfall.

Snotel Tizer Basin measured an estimated 9 inches of snow over 24 hours.

Snotel Tizer Basin measured an estimated 9 inches of snow over 24 hours.

An estimated 17 inches of snow fell at the Frohner Meadows SNOTEL over 24 hours.

Two sites, including mesonet station mtelk Elk Park (mt dot), reported wind chills from -40 to -54F the morning of Feb 23.

Mesonet station jvwm, which is 5.4 miles north of Waterloo, reports wind gust of 60 mph. This appears to be an isolated gust.

The Haystack Fire was a lightning caused incident first discovered on July 31st, 2021. It was a relatively quiet event until September 18th, when strong southwesterly winds and critically low relative humidity fueled its growth to 10,800 acres. This led to pre-evacuation notice b…

Trained spotter at 2 SE Montana City reported a 12.3 snowfall total.

Trained spotter reports 4 inches of snow.

Jack Creek 10 SE Boulder measured a 52 kt (60 mph) non-thunderstorm wind gust.

Storm total snowfall of one foot reported near Clancy.

Public estimate of 10 inches of new snow on Friday.

Public report of 12 inches of snow.

MDT Elk Park Station (11 SW Basin) measured a 55 kt (63 mph) non-thunderstorm wind gust.

Ranch BB station (12 SE Boulder) measured a 64 kt (74 mph) non-thunderstorm wind gust.

Snowfall total of 6 inches was reported at Clancy.

Co-op observer reports 20 of new snow and till snowing at time of observation.

Public reports 18 of heavy snow near Montana City via Twitter.

Social media report of 7.

Measured 7 inches new snow since midnight.

Spotter estimated 4.5-5 of snow fell overnight and into this morning.

Mesonet station mtbou, Boulder Hill (mt dot). Station elevation: 5592 ft.

Public report 14 W Whitehall estimated snowfall 13.5 inches.

A rainfall total of 1.36 inches was reported by the public at 2 SE Montana City. Rainfall total began on the evening of Sunday, September 8th.

Public reported a rainfall total of 2.25 inches at 2 N Clancy from September 6th through the 9th.

A member of the public reported hail estimated to be the size of quarters (1 inch Diameter) near Park Lane. hail was covering the ground.

A trained spotter reported quarter size hail (1 inch diameter) for a short period but then mostly dime sized hail after that.

A trained spotter reports hail up to 1.5 inches in diameter 5 miles NNW of Whitehall at 5:26 PM MST.

A trained spotter reports hail of 1.5 inches in diameter.

A trained spotter reports sized 1.5 inches in diameter about 5 miles NNW of Whitehall.

A trained spotter reports hail size of 1.5 inches in diameter.

Trained spotter reports quarter sized hail falling and covering the ground near Cardwell.

Trained spotter reports quarter sized hail falling and affecting travel on nearby Montana Highway 2.

Trained spotter reported 1.5 inch hail in Whitehall.

Second hand report of quarter size hail reported in Clancy by KRTV.

MT DOT reported severe driving conditions along I-90 at Homestake Pass during snowstorm.