A low pressure trough pushed across eastern Montana, bringing strong gusty winds to the area for much of the afternoon.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GGW wrote it up.
A low pressure trough pushed across eastern Montana, bringing strong gusty winds to the area for much of the afternoon.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Glasgow, MT wrote its last area forecast discussion before the first event at Jun 22, 8:49 AM MST, 2 hours 11 minutes earlier.
Area Forecast Discussion National Weather Service Glasgow MT 949 AM MDT Thu Jun 22 2017 .SHORT TERM...for northeast Montana...today through Sat... Update: Minor updates this morning to change cloud cover slightly and to mention near critical fire weather concerns this afternoon early evening for Fire Weather Zones 137 and 122. Also the threat of windy conditions across Fort Peck Lake continues this afternoon and evening. TC Previous Discussion...Cold front passage overnight has brought some showers and gusty winds to the region. Winds have mostly diminished and showers sliding into North Dakota early this morning. Upper low over central Canada expected to send a second push of cooler air south of the border today. The cold air advection will produce good mixing for some 40-50kt 700mb winds during the late morning and early afternoon. A band of moisture follows behind the CAA for the potential for a few showers in the late afternoon and evening. Even without showers, the moisture should bring clouds and a rise in relative humidity to alleviate some of the fire weather concerns. High pressure pushes into central Montana tonight with enough pressure gradient to bring winds up across the eastern zones on Friday. Upper trof digging into the upper Midwest will keep temperatures below average into Saturday even as surface high moves east. Ebert .LONG TERM...Sat night through Thu... Saturday night through Tuesday morning will be dominated by a strong upper-level ridge of high pressure, which is expected to keep all precipitation away from NE Montana and and daytime temperatures well into the upper 80s. Tuesday and beyond: Even though there is significant model disagreement there seems to be a change in the weather pattern in the form of a low pressure trough descending through the Canadian Rockies and pushing a cold front through our region. This far out, best guess includes slight chances for scattered rain showers through mid week next week. BMickelson && .AVIATION... Synopsis: With the upper-level low pressure center over the central Canadian Prairie, a small-scale weather disturbance and low pressure trough is forecasts to push through NE Montana late today bringing another round of rain showers...late afternoon through midnight...then diminishing after midnight. This will also allow strong winds to mix down to the surface, especially in and around showers. Flight conditions: Mainly VFR with some late afternoon and evening rain showers possible impacting the TAF sites with some brief MVFR conditions. Winds: NW winds 10 to 15 kts gusts up to 25 kts, then increasing to 15-20kts gusts up to 35 kts during the afternoon and early evening. Crosswind concerns will be heightened. Winds are forecast to decrease overnight into the NW 10-15 kts range. TC/BMickelson && .GLASGOW WATCHES/WARNINGS/ADVISORIES... Lake Wind Advisory until 10 PM MDT this evening For Fort Peck Lake for Central and Southeast Phillips...Central and Southern Valley...Garfield...McCone...Petroleum. && weather.gov/glasgow
Hazardous Weather Outlook National Weather Service Glasgow MT 311 AM MDT Thu Jun 22 2017 MTZ016>027-059>062-230915- Central and Southeast Phillips-Central and Southern Valley-Daniels- Sheridan-Western Roosevelt-Petroleum-Garfield-McCone-Richland- Dawson-Prairie-Wibaux-Northern Phillips-Southwest Phillips- Northern Valley-Eastern Roosevelt- 311 AM MDT Thu Jun 22 2017 This Hazardous Weather Outlook is for portions of northeast Montana. * Hazard: Lake Wind Advisory for Fort Peck Lake. * Timing: From mid morning through this evening. * Wind: Northwest 20 to 35 mph with gusts up to 45 mph. * Impacts: Gusty winds will blow around unsecured objects. Winds will also make open waters of area lakes rough and hazardous, and may result in high waves which may tip or swamp smaller craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Hazardous Weather Outlook is issued when hazardous weather could impact the region within the next week. Be sure to stay tuned for future updates as locations, timing, and impacts could change. Begin preparations to mitigate any impacts that could result from the hazardous weather. &&
The national radar mosaic for the moment the first event began.
3 high wind. Local standard time, as filed.
The MT DOT site near Comertown measured sustained winds of over 40 mph for nearly 3 hours, along with periodic gusts of 58 mph between approximately 1:00 PM and 1:20 PM MST. The first gust to 58 mph occurred at 12:59 PM MST.
A 58 mph wind gust was measured at the Bluff Creek (BLUM8) RAWS site.
A 58 mph wind gust was measured at the Saint Marie MARCO Site (07MT).
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2017Every state in 2017This day in weather historyWarnings in Montana, June 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 695189, 696251, 696249.