Shortwave moved through the southwesterly flow aloft that's been parked over the area this week and set off another round of severe thunderstorms over the area this afternoon into the overnight hours. Weather pattern finally changed after the end of this event.
Every event with a place to put it. Tap one for its entry below.
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.
Shortwave moved through the southwesterly flow aloft that's been parked over the area this week and set off another round of severe thunderstorms over the area this afternoon into the overnight hours. Weather pattern finally changed after the end of this event.
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 Jul 9, 2:10 PM MST, 5 hours 25 minutes earlier.
Area Forecast Discussion National Weather Service Glasgow MT 310 PM MDT Sat Jul 9 2022 .DISCUSSION... Atmospheric conditions are very similar to yesterday in preparing for another round of severe thunderstorms, set to move through NE Montana later this afternoon and evening. SPC has actually upgraded part of the slight risk area to enhanced risk for increased confidence of a hail and wind threat. With our radar out of commission due to a lightning strike last night, we will need to rely on neighboring office's radars and satellite and lightning data to issue any warnings tonight. Awareness and engagement with social media is good. The cold front on the backside of this slowly changing weather pattern will finally move through our area later on Sunday with a few lingering leftover messy showers and isolated non-severe thunderstorms. The dry air a cooler temperatures will be welcome relief late Sunday through Tuesday. Wednesday and beyond, a strong ridge of high pressure will build into our region and push high temperatures in the triple digits for many locations. ----BMickelson && .AVIATION... Updated: 2110Z Expected Flight Category: VFR today and MVFR-IFR tonight. Discussion: Afternoon cumulus clouds will build into thunderstorms this evening through overnight tonight. Some of the stronger storms will contain large hail, heavy rain, and gusty winds and frequent lightning. Winds: Variable winds 5-15 knots today becoming north 5-15 knots tonight. Strong and erratic winds are expected in and near thunderstorms. ---BMickelson && .GLASGOW WATCHES/WARNINGS/ADVISORIES...NONE. && weather.gov/glasgow
The national radar mosaic for the moment the first event began.
17 thunderstorm wind, 3 hail, 1 flood. Local standard time, as filed.
The Malta Airport ASOS (KM75) measured a thunderstorm wind gust of 78 mph.
A trained spotter reported hail up to the size of quarters.
The Saco US-2 DOT site (MTSCO) measured a thunderstorm wind gust of 66 mph.
The BLM Vandalia N mesonet site (MTM34) measured a thunderstorm wind gust of 66 mph.
The Bluff Creek RAWS site (BLUM8) measured a thunderstorm wind gust of 62 mph.
The King Coulee RAWS site (KIGM8) measured a thunderstorm wind gust of 69 mph.
A trained spotter measured a thunderstorm wind gust of 70 mph.
The Glasgow Airport ASOS (KGGW) measured a thunderstorm wind gust of 68 mph.
The Saint Marie mesonet site (07MT) measured a thunderstorm wind gust of 73 mph.
Public reported, via Facebook, a measured thunderstorm wind gust of 68 mph.
Public reported, via Facebook, a thunderstorm wind gust estimated at 60 mph.
The Fort Peck Dam mesonet site (GGWFP) measured a thunderstorm wind gust of 62 mph.
A National Weather Service employee reported 6 inches of standing water on Highway 59 between mile markers 64 and 65.
Public reported, via Facebook, a measured thunderstorm wind gust of 78 mph. A picture of their weather station was included showing the measurement.
A trained spotter estimated a thunderstorm wind gust of 75 mph.
A trained spotter reported hail up to the size of quarters.
Public reported, via Facebook, a thunderstorm wind gust estimated at 70 mph.
Public reported, via Facebook, hail up to the size of quarters.
A mesonet site near Dooley measured a thunderstorm wind gust of 60 mph. This was denoted as an NDAWN site.
The Beaver Hill I-94 DOT site (MTBVR) measured a thunderstorm wind gust of 75 mph.
A trained spotter reported branches knocked off of trees.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2022Every state in 2022This day in weather historyWarnings in Montana, July 2022
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: 1039946, 1039948, 1039950, 1039951, 1039952, 1039954, 1039956, 1039957, 1039959, 1039960, 1040446, 1040447, 1040448, 1040449, 1040450, 1040451, 1040452, 1040453, 1040454, 1040455, 1040456.