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Real-time wind speeds, peak gusts, and surface chop forecasts from NOAA National Weather Service, verified public boat launches, USGS surface water telemetry, and Montana state boating regulations for Georgetown Lake (Montana).
Winter Storm Warning issued October 10 at 11:42AM MDT until October 12 at 6:00AM MDT by NWS Missoula MT
Peak Gusts: 8 mph. Light surface ripple; smooth navigation.
Cold Shock Hazard: Life jackets are strongly urged for all vessel occupants across open water.
Ramp Accessibility: Water level referenced at 6,426 ft MSL for launch ramp clearance across public access points.
Advisory Threshold: Official Lake Wind Advisories trigger when sustained winds reach 15 mph or waves exceed 3 ft.
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Fair for boating (63/100), from 4 available inputs. Supporting this: Wind 5 mph from the east. Gusts to 12 mph. Working against it: Active severe alert: Winter Storm Warning. 97% chance of precipitation is likely. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.
| Forecast Time | Wind (mph) | Gust (mph) | Direction | Surface Chop & Fetch | Watercraft Readiness |
|---|---|---|---|---|---|
| 9 PM | 5 mph | 12 mph | E | Calm mirror surface; flat wake navigation | Optimal |
| 10 PM | 6 mph | 16 mph | E | Light surface ripple; gentle boat glide | Favorable |
| 11 PM | 7 mph | 18 mph | E | Light surface ripple; gentle boat glide | Favorable |
| 12 AM | 5 mph | 16 mph | E | Calm mirror surface; flat wake navigation | Favorable |
| 1 AM | 5 mph | 13 mph | E | Calm mirror surface; flat wake navigation | Optimal |
| 2 AM | 5 mph | 15 mph | E | Calm mirror surface; flat wake navigation | Favorable |
| 3 AM | 5 mph | 16 mph | E | Calm mirror surface; flat wake navigation | Favorable |
| 4 AM | 5 mph | 10 mph | E | Calm mirror surface; flat wake navigation | Optimal |
| 5 AM | 3 mph | 14 mph | NE | Calm mirror surface; flat wake navigation | Optimal |
| 6 AM | 3 mph | 12 mph | E | Calm mirror surface; flat wake navigation | Optimal |
| 7 AM | 3 mph | 12 mph | E | Calm mirror surface; flat wake navigation | Optimal |
| 8 AM | 3 mph | 12 mph | E | Calm mirror surface; flat wake navigation | Optimal |
| 9 AM | 7 mph | 21 mph | E | Light surface ripple; gentle boat glide | Favorable |
| 10 AM | 7 mph | 21 mph | E | Light surface ripple; gentle boat glide | Favorable |
| 11 AM | 7 mph | 21 mph | E | Light surface ripple; gentle boat glide | Favorable |
| 12 PM | 9 mph | 21 mph | E | Light surface ripple; gentle boat glide | Favorable |
| 1 PM | 9 mph | 21 mph | E | Light surface ripple; gentle boat glide | Favorable |
| 2 PM | 9 mph | 21 mph | E | Light surface ripple; gentle boat glide | Favorable |
Surface chop expands with sustained wind duration across Georgetown Lake's open water fetch. Early morning hours typically offer the calmest navigation before thermal afternoon winds develop.
Individual boat ramp GPS coordinates are currently being cataloged for Georgetown Lake. Public launches are managed by state, county, or local park authorities.
Ramp operational status and courtesy dock availability are subject to seasonal water level shifts and lake management authority guidelines.
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Fair for kayaking (64/100), from 5 available inputs. Supporting this: Wind 5 mph from the east. Gusts to 12 mph. Working against it: Active severe alert: Winter Storm Warning. 97% chance of precipitation is likely. Confidence is high (90%).