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National Weather ServiceMontanaLake Wind AdvisoryArchive to October 1, 2026

Lake Wind Advisories in Montana

The National Weather Service issued 52 lake wind advisories for Montana in 2025 and 60 a year on average in 2008-2025; in 2021-2025 it had the 2nd most of any state. 2026 through September: 49, 11% above the average of 44 for those months in 2008-2025. Central and Southern Valley was covered most often (953 times since 2008).

How many lake wind advisories does Montana get?

52 lake wind advisories for Montana in 2025
204060802008: 5520082009: 7120092010: 6520102011: 7920112012: 6720122013: 5520132014: 5920142015: 6420152016: 6120162017: 6720172018: 4220182019: 5720192020: 6020202021: 6220212022: 7120222023: 4720232024: 4720242025: 5220252026: 4920262008-2025 average 602026 through September: 49204060802008: 5520082009: 712010: 6520102011: 792012: 6720122013: 552014: 5920142015: 642016: 6120162017: 672018: 4220182019: 572020: 6020202021: 622022: 7120222023: 472024: 4720242025: 522026: 4920262008-2025 average 602026 through September: 49204060802008: 5520082009: 712010: 6520102011: 792012: 6720122013: 552014: 5920142015: 642016: 6120162017: 672018: 4220182019: 572020: 6020202021: 622022: 7120222023: 472024: 4720242025: 522026: 4920262008-2025 average 602026 through September: 49204060802008: 5520082009: 712010: 652011: 792012: 672013: 552014: 592015: 6420152016: 612017: 672018: 422019: 572020: 6020202021: 622022: 712023: 472024: 472025: 522026: 4920262008-2025 average 602026 through September: 49

Every lake wind advisory that covered part of Montana. 2026 is an outline: the year is not over.

The numbers
YearCount
2026 (through September)49
202552
202447
202347
202271
202162
202060
201957
201842
201767
201661
201564
201459
201355
201267
201179
201065
200971
200855

Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.

When in the year does Montana get them?

Montana's lake wind advisories by month, 2008-2025
100200Jan: 0JanFeb: 0FebMar: 24MarApr: 111AprMay: 159MayJun: 143JunJul: 120JulAug: 105AugSep: 130SepOct: 160OctNov: 123NovDec: 6Dec160100200Jan: 0JanFeb: 0FebMar: 24MarApr: 111AprMay: 159MayJun: 143JunJul: 120JulAug: 105AugSep: 130SepOct: 160OctNov: 123NovDec: 6Dec160100200Jan: 0JanFeb: 0FebMar: 24MarApr: 111AprMay: 159MayJun: 143JunJul: 120JulAug: 105AugSep: 130SepOct: 160OctNov: 123NovDec: 6Dec160100200Jan: 0JFeb: 0FMar: 24MApr: 111AMay: 159MJun: 143JJul: 120JAug: 105ASep: 130SOct: 160ONov: 123NDec: 6D160

Sum of 2008-2025; the busiest month is labelled.

Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.

Where in Montana?

County or forecast zoneSince 2008Since 2023Last issued
Central and Southern Valley953166September 25, 2026
Garfield949166September 25, 2026
McCone948167September 25, 2026
Central and Southeast Phillips838166September 25, 2026
Petroleum808166September 25, 2026
Flathead/Mission Valleys17628August 13, 2026
Southwest Phillips2818April 24, 2026
Western Roosevelt10July 14, 2010

The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.

Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.

What is a lake wind advisory?

A lake wind advisory means winds strong enough to make small boats on inland lakes unsafe. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Montana.