Portions of northeast Montana received above average rain for September, allowing|drought conditions to improve for a few locations near the end of the month.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
Portions of northeast Montana received above average rain for September, allowing|drought conditions to improve for a few locations near the end of the month.
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 Aug 31, 1:14 PM MST, 10 hours 46 minutes earlier.
Area Forecast Discussion National Weather Service Glasgow MT 214 PM MDT Sat Aug 31 2024 .DISCUSSION... KEY MESSAGES: - Temperatures trend upward Sunday through Tuesday. - Dry conditions with next chance of scattered rain late Tuesday through early Thursday. WEATHER PATTERN OVERVIEW: After a dry backdoor cold front moved through our region this morning, an upper level ridge of high pressure will re- build from the Rockies into the high plains through the remainder of this weekend with warmer temperatures expected starting Sunday. Either Monday or Tuesday will be the warmest day of this forecast package. The next Pacific trough pushes onshore early next week, and through the northern Rockies on Tuesday. Precipitation chances increase on late on Tuesday as the upper trough and cold front moves across the state, but the small storm system weakens, and the southwest flow cuts off quickly, limiting the influx of moisture. Any precipitation through the middle of next week is expected to be minimal if any at all. FORECAST CONFIDENCE & DEVIATIONS: No significant deviation from the NBM forecast for the period. Confidence is high on warmer temperatures between Sunday and Tuesday. With limited moisture in the trough passage and cold front, confidence for measurable precipitation is low (less than 30%) for Tuesday night through Thursday morning. && .AVIATION... VFR. Skies will be clear most of the time through Sunday. Northerly winds today will shift around and increase from the southeast around 15 kts on Sunday. && .GGW WATCHES/WARNINGS/ADVISORIES... None. && weather.gov/glasgow
The national radar mosaic for the moment the first event began.
2 drought. Local standard time, as filed.
To start September, D-2 Severe drought conditions remained over the eastern three quarters of Daniels County. On the last week of September, all of the county improved to D-1 Moderate drought.
To start September, D-2 Severe drought conditions remained over the northeastern half of western Roosevelt County. On the last week of September, all of western Roosevelt County improved to D-1 Moderate drought.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2024Every state in 2024This day in weather historyWarnings in Montana, September 2024
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: 1208058, 1208059.