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Solunar feeding forecasts, major and minor fish activity windows, real-time USGS water temperature, and NOAA atmospheric pressure trends for Gibson Reservoir (Montana). Verified depth tactics, biological thermal baselines, and conservation guidelines for freshwater anglers.
Winter Storm Warning issued October 11 at 10:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Depth Guide: Surface water temperature directly regulates fish metabolic activity and foraging depth positioning.
Feeding Index: Low atmospheric pressure indicates incoming frontal activity. Fish often feed aggressively immediately ahead of approaching troughs.
Chop & Presentation: Light surface ripple breaks sunlight glare and disguises terminal tackle, prompting cautious game fish to strike moving lures.
Lunar Timing: Prime major window active around 1:21 PM MDT – 3:21 PM MDT. Astronomical alignment drives peak foraging intensity on Gibson Reservoir.
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Fair for fishing (56/100), from 5 available inputs. Supporting this: Wind 14 mph from the northeast. Sky is overcast (92% cloud cover). Working against it: 77% chance of precipitation is likely. Air temperature 28°F. Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Major feeding periods coincide with lunar transit (moon overhead and underfoot); minor periods occur during moonrise and moonset.
Moon Overhead (Transit)
Moon Underfoot (Antitransit)
| Feeding Window | Period Type | Astronomical Trigger | Feeding Intensity |
|---|---|---|---|
| 1:21 PM MDT – 3:21 PM MDT | Major Window | Moon Overhead (Transit) | High |
| 1:45 AM MDT – 3:45 AM MDT | Major Window | Moon Underfoot (Antitransit) | High |
| 8:36 AM MDT – 9:36 AM MDT | Minor Window | Moonrise | Moderate |
| 6:57 PM MDT – 7:57 PM MDT | Minor Window | Moonset | Moderate |
Solunar Science: Major periods produce peak gravitational tidal pull on aquatic organisms. Times and moon phase are computed locally from Gibson Reservoir's coordinates and current astronomical orbit.
| Day / Date | Moon Phase | Best Feeding Window | Forecast Wind | Rain Chance |
|---|---|---|---|---|
| Today Oct 11, 2026 | New Moon (0%) | 1:21 PM MDT – 3:21 PM MDT | 14 mph | 95% |
| Tomorrow Oct 12, 2026 | Waxing Crescent (2%) | 2:09 PM MDT – 4:09 PM MDT | 6 mph | 20% |
| Tuesday Oct 13, 2026 | Waxing Crescent (6%) | 2:57 PM MDT – 4:57 PM MDT | 12 mph | 0% |
| Wednesday Oct 14, 2026 | Waxing Crescent (12%) | 3:45 PM MDT – 5:45 PM MDT | 9 mph | 0% |
| Thursday Oct 15, 2026 | Waxing Crescent (19%) | 4:32 PM MDT – 6:32 PM MDT | 3 mph | 4% |
| Friday Oct 16, 2026 | Waxing Crescent (28%) | 5:20 PM MDT – 7:20 PM MDT | 8 mph | 0% |
| Saturday Oct 17, 2026 | Waxing Crescent (38%) | 5:43 AM MDT – 7:43 AM MDT | 15 mph | 0% |
Provenance: Moon phase and major feeding windows are calculated using NOAA solar-lunar algorithms for Gibson Reservoir's geographic coordinates. Wind velocity and precipitation probability reflect official National Weather Service forecast periods.
Oncorhynchus mykiss
Public boat ramps, shore fishing access, and county park landings for Gibson Reservoir are managed under state and regional public land guidelines.
Anglers launching trailered motorized watercraft or paddlecraft should verify seasonal water clearance and county park parking requirements prior to launching.