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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 Colorado state boating regulations for Grand Lake (Colorado).
Peak Gusts: 2 mph. Light surface ripple; smooth navigation.
Cold Shock Hazard: Water is below 60°F. Immediate cold shock hazard upon submersion. USCG life jackets essential.
Ramp Accessibility: Water level referenced at 8,369 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.
Excellent for boating (99/100), from 4 available inputs. Supporting this: Wind 2 mph from the southeast. Gusts to 4 mph. 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 |
|---|---|---|---|---|---|
| 5 AM | 2 mph | 4 mph | SE | Calm mirror surface; flat wake navigation | Optimal |
| 6 AM | 2 mph | 4 mph | S | Calm mirror surface; flat wake navigation | Optimal |
| 7 AM | 2 mph | 4 mph | S | Calm mirror surface; flat wake navigation | Optimal |
| 8 AM | 2 mph | 4 mph | S | Calm mirror surface; flat wake navigation | Optimal |
| 9 AM | 2 mph | 4 mph | SW | Calm mirror surface; flat wake navigation | Optimal |
| 10 AM | 3 mph | 6 mph | SW | Calm mirror surface; flat wake navigation | Optimal |
| 11 AM | 5 mph | 8 mph | SW | Calm mirror surface; flat wake navigation | Optimal |
| 12 PM | 7 mph | 12 mph | SW | Light surface ripple; gentle boat glide | Optimal |
| 1 PM | 10 mph | 16 mph | SW | Moderate chop (1–2 ft waves); steady navigation | Favorable |
| 2 PM | 12 mph | 18 mph | W | Moderate chop (1–2 ft waves); steady navigation | Favorable |
| 3 PM | 13 mph | 21 mph | W | Moderate chop (1–2 ft waves); steady navigation | Favorable |
| 4 PM | 13 mph | 21 mph | W | Moderate chop (1–2 ft waves); steady navigation | Favorable |
| 5 PM | 12 mph | 18 mph | W | Moderate chop (1–2 ft waves); steady navigation | Favorable |
| 6 PM | 9 mph | 15 mph | W | Light surface ripple; gentle boat glide | Favorable |
| 7 PM | 7 mph | 14 mph | SW | Light surface ripple; gentle boat glide | Optimal |
| 8 PM | 7 mph | 14 mph | SW | Light surface ripple; gentle boat glide | Optimal |
| 9 PM | 7 mph | 14 mph | SW | Light surface ripple; gentle boat glide | Optimal |
| 10 PM | 6 mph | 12 mph | SW | Light surface ripple; gentle boat glide | Optimal |
Surface chop expands with sustained wind duration across Grand 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 Grand 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.
Good for kayaking (80/100), from 5 available inputs. Supporting this: Wind 2 mph from the southeast. Gusts to 4 mph. Working against it: Air temperature 33°F. Combined air and water temperature is 89°F (below the 120°F safety guideline). Thermal protection recommended for paddle craft. Confidence is high (90%).