Rule
Mirror Lake
Mirror Lake Forecast for Cairngorms, Scotland
Aviemore, Scotland, United Kingdom
Cairngorms compositions range from granite plateaus and Scots pine forest to lochs and broad glens, often simplified by winter snow or low cloud.
6 matching opportunities in the 14-day forecast.
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/London
First upcoming window
Glassy Mirror Reflections (glassy)
Cairngorms
Thu, Sep 24 · 03:00–06:00 · 3h window
Low confidence
33%
💨Wind Speed0.5-0.8m/s
Glassy Mirror Reflections (glassy) at Sunrise
Cairngorms
Thu, Sep 24 · 06:00–08:00
💨Wind Speed:0.4m/s
Low
Glassy Mirror Reflections (glassy)
Cairngorms
Thu, Sep 24 · 08:00–11:00
💨Wind Speed:0.2-0.5m/s
Low
Perfect Mirror Reflections
Cairngorms
Fri, Sep 25 · 16:00–18:00
💨Wind Speed:0.9m/s
Low
Perfect Mirror Reflections at Sunset
Cairngorms
Fri, Sep 25 · 18:00–20:00
💨Wind Speed:0.9m/s
Low
Perfect Mirror Reflections
Cairngorms
Fri, Sep 25 · 20:00–04:00
💨Wind Speed:0.9-1m/s
Low
71-hour requirements breakdown
When available, this detailed table covers only the stated 71-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Europe/London.
Most common blockers
Ranked across the 95-hour forecast horizon, not the full opportunity period.
- Wind Gusts94% of hours
- Wind Speed93% of hours
- Precipitation Chance36% of hours
0matching hours in the displayed 71-hour forecast
AND logic: all conditions required
Meets requirement
Misses requirement
Time Europe/London | Wind Speed ≤ 1.0m/s | Wind Gusts ≤ 2.0m/s | Precipitation Chance ≤ 10.0% | Visibility ≥ 5000.0m |
|---|---|---|---|---|
| Sun, Sep 20 | ||||
| Rule fails. 06:00 | Wind Speed: 3.8m/s. Misses requirement | Wind Gusts: 7.9m/s. Misses requirement | Precipitation Chance: 10%. Meets requirement | Visibility: 61760m. Meets requirement |
| Rule fails. 07:00 | Wind Speed: 4.4m/s. Misses requirement | Wind Gusts: 9m/s. Misses requirement | Precipitation Chance: 6%. Meets requirement | Visibility: 61200m. Meets requirement |
| Rule fails. 08:00 | Wind Speed: 2.6m/s. Misses requirement | Wind Gusts: 5.6m/s. Misses requirement | Precipitation Chance: 3%. Meets requirement | Visibility: 57280m. Meets requirement |
| Rule fails. 09:00 | Wind Speed: 3.7m/s. Misses requirement | Wind Gusts: 7.5m/s. Misses requirement | Precipitation Chance: 1%. Meets requirement | Visibility: 59620m. Meets requirement |
| Rule fails. 10:00 | Wind Speed: 3.5m/s. Misses requirement | Wind Gusts: 7.2m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 63260m. Meets requirement |
| Rule fails. 11:00 | Wind Speed: 4m/s. Misses requirement | Wind Gusts: 8.6m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 66000m. Meets requirement |
| Rule fails. 12:00 | Wind Speed: 4.9m/s. Misses requirement | Wind Gusts: 10m/s. Misses requirement | Precipitation Chance: 1%. Meets requirement | Visibility: 66120m. Meets requirement |
| Rule fails. 13:00 | Wind Speed: 4.7m/s. Misses requirement | Wind Gusts: 9.7m/s. Misses requirement | Precipitation Chance: 2%. Meets requirement | Visibility: 64060m. Meets requirement |
| Rule fails. 14:00 | Wind Speed: 4.9m/s. Misses requirement | Wind Gusts: 10m/s. Misses requirement | Precipitation Chance: 2%. Meets requirement | Visibility: 64800m. Meets requirement |
| Rule fails. 15:00 | Wind Speed: 4.2m/s. Misses requirement | Wind Gusts: 9m/s. Misses requirement | Precipitation Chance: 1%. Meets requirement | Visibility: 61160m. Meets requirement |
| Rule fails. 16:00 | Wind Speed: 3.2m/s. Misses requirement | Wind Gusts: 6.9m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 62300m. Meets requirement |
| Rule fails. 17:00 | Wind Speed: 2.8m/s. Misses requirement | Wind Gusts: 5.8m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 60380m. Meets requirement |
| Rule fails. 18:00 | Wind Speed: 2.6m/s. Misses requirement | Wind Gusts: 5.4m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 60200m. Meets requirement |
| Rule fails. 19:00 | Wind Speed: 0.8m/s. Meets requirement | Wind Gusts: 3.4m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 55340m. Meets requirement |
| Rule fails. 20:00 | Wind Speed: 2.8m/s. Misses requirement | Wind Gusts: 5.9m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 59860m. Meets requirement |
| Rule fails. 21:00 | Wind Speed: 2.2m/s. Misses requirement | Wind Gusts: 4.9m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 52200m. Meets requirement |
| Rule fails. 22:00 | Wind Speed: 2.4m/s. Misses requirement | Wind Gusts: 5.1m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 51320m. Meets requirement |
| Rule fails. 23:00 | Wind Speed: 2.5m/s. Misses requirement | Wind Gusts: 5.3m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 50480m. Meets requirement |
| Mon, Sep 21 | ||||
| Rule fails. 24:00 | Wind Speed: 2.4m/s. Misses requirement | Wind Gusts: 5.3m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 49180m. Meets requirement |
| Rule fails. 01:00 | Wind Speed: 1.9m/s. Misses requirement | Wind Gusts: 4.3m/s. Misses requirement | Precipitation Chance: 2%. Meets requirement | Visibility: 48440m. Meets requirement |
| Rule fails. 02:00 | Wind Speed: 1.9m/s. Misses requirement | Wind Gusts: 4.1m/s. Misses requirement | Precipitation Chance: 10%. Meets requirement | Visibility: 43760m. Meets requirement |
| Rule fails. 03:00 | Wind Speed: 1.9m/s. Misses requirement | Wind Gusts: 4m/s. Misses requirement | Precipitation Chance: 21%. Misses requirement | Visibility: 49120m. Meets requirement |
| Rule fails. 04:00 | Wind Speed: 2.5m/s. Misses requirement | Wind Gusts: 5.5m/s. Misses requirement | Precipitation Chance: 33%. Misses requirement | Visibility: 50660m. Meets requirement |
| Rule fails. 05:00 | Wind Speed: 2.6m/s. Misses requirement | Wind Gusts: 5.4m/s. Misses requirement | Precipitation Chance: 50%. Misses requirement | Visibility: 41200m. Meets requirement |
| Rule fails. 06:00 | Wind Speed: 2.5m/s. Misses requirement | Wind Gusts: 5.6m/s. Misses requirement | Precipitation Chance: 68%. Misses requirement | Visibility: 53740m. Meets requirement |
| Rule fails. 07:00 | Wind Speed: 2m/s. Misses requirement | Wind Gusts: 4.9m/s. Misses requirement | Precipitation Chance: 78%. Misses requirement | Visibility: 51720m. Meets requirement |
| Rule fails. 08:00 | Wind Speed: 5.2m/s. Misses requirement | Wind Gusts: 11m/s. Misses requirement | Precipitation Chance: 74%. Misses requirement | Visibility: 50540m. Meets requirement |
| Rule fails. 09:00 | Wind Speed: 6.3m/s. Misses requirement | Wind Gusts: 13m/s. Misses requirement | Precipitation Chance: 61%. Misses requirement | Visibility: 47400m. Meets requirement |
| Rule fails. 10:00 | Wind Speed: 6.1m/s. Misses requirement | Wind Gusts: 12m/s. Misses requirement | Precipitation Chance: 47%. Misses requirement | Visibility: 42720m. Meets requirement |
| Rule fails. 11:00 | Wind Speed: 6.6m/s. Misses requirement | Wind Gusts: 13m/s. Misses requirement | Precipitation Chance: 31%. Misses requirement | Visibility: 38020m. Meets requirement |
| Rule fails. 12:00 | Wind Speed: 6.8m/s. Misses requirement | Wind Gusts: 13m/s. Misses requirement | Precipitation Chance: 14%. Misses requirement | Visibility: 34520m. Meets requirement |
| Rule fails. 13:00 | Wind Speed: 7.3m/s. Misses requirement | Wind Gusts: 15m/s. Misses requirement | Precipitation Chance: 2%. Meets requirement | Visibility: 32480m. Meets requirement |
| Rule fails. 14:00 | Wind Speed: 6.9m/s. Misses requirement | Wind Gusts: 14m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 30960m. Meets requirement |
| Rule fails. 15:00 | Wind Speed: 6.3m/s. Misses requirement | Wind Gusts: 13m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 28420m. Meets requirement |
| Rule fails. 16:00 | Wind Speed: 5.5m/s. Misses requirement | Wind Gusts: 11m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 25820m. Meets requirement |
| Rule fails. 17:00 | Wind Speed: 5.4m/s. Misses requirement | Wind Gusts: 11m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 27060m. Meets requirement |
| Rule fails. 18:00 | Wind Speed: 5.1m/s. Misses requirement | Wind Gusts: 10m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 29380m. Meets requirement |
| Rule fails. 19:00 | Wind Speed: 4.1m/s. Misses requirement | Wind Gusts: 8.5m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 30320m. Meets requirement |
| Rule fails. 20:00 | Wind Speed: 3.9m/s. Misses requirement | Wind Gusts: 8.1m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 24400m. Meets requirement |
| Rule fails. 21:00 | Wind Speed: 4.5m/s. Misses requirement | Wind Gusts: 9.4m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 31300m. Meets requirement |
| Rule fails. 22:00 | Wind Speed: 4m/s. Misses requirement | Wind Gusts: 8.3m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 31700m. Meets requirement |
| Rule fails. 23:00 | Wind Speed: 3.2m/s. Misses requirement | Wind Gusts: 6.6m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 27640m. Meets requirement |
| Tue, Sep 22 | ||||
| Rule fails. 24:00 | Wind Speed: 2.9m/s. Misses requirement | Wind Gusts: 6.3m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 32320m. Meets requirement |
| Rule fails. 01:00 | Wind Speed: 1.9m/s. Misses requirement | Wind Gusts: 4.6m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 31960m. Meets requirement |
| Rule fails. 02:00 | Wind Speed: 2.7m/s. Misses requirement | Wind Gusts: 5.8m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 33405m. Meets requirement |
| Rule fails. 03:00 | Wind Speed: 2.7m/s. Misses requirement | Wind Gusts: 6.5m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 28640m. Meets requirement |
| Rule fails. 04:00 | Wind Speed: 4.3m/s. Misses requirement | Wind Gusts: 9m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 25080m. Meets requirement |
| Rule fails. 05:00 | Wind Speed: 4.8m/s. Misses requirement | Wind Gusts: 9.8m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 20960m. Meets requirement |
| Rule fails. 06:00 | Wind Speed: 5.1m/s. Misses requirement | Wind Gusts: 10m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 21300m. Meets requirement |
| Rule fails. 07:00 | Wind Speed: 5.3m/s. Misses requirement | Wind Gusts: 11m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 21620m. Meets requirement |
| Rule fails. 08:00 | Wind Speed: 5.8m/s. Misses requirement | Wind Gusts: 12m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 21800m. Meets requirement |
| Rule fails. 09:00 | Wind Speed: 6.2m/s. Misses requirement | Wind Gusts: 12m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 22640m. Meets requirement |
| Rule fails. 10:00 | Wind Speed: 6.3m/s. Misses requirement | Wind Gusts: 13m/s. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 23460m. Meets requirement |
| Rule fails. 11:00 | Wind Speed: 6m/s. Misses requirement | Wind Gusts: 12m/s. Misses requirement | Precipitation Chance: 2%. Meets requirement | Visibility: 22580m. Meets requirement |
| Rule fails. 12:00 | Wind Speed: 5.5m/s. Misses requirement | Wind Gusts: 11m/s. Misses requirement | Precipitation Chance: 5%. Meets requirement | Visibility: 21680m. Meets requirement |
| Rule fails. 13:00 | Wind Speed: 4.8m/s. Misses requirement | Wind Gusts: 9.6m/s. Misses requirement | Precipitation Chance: 10%. Meets requirement | Visibility: 20800m. Meets requirement |
| Rule fails. 14:00 | Wind Speed: 3.7m/s. Misses requirement | Wind Gusts: 7.5m/s. Misses requirement | Precipitation Chance: 17%. Misses requirement | Visibility: 15120m. Meets requirement |
| Rule fails. 15:00 | Wind Speed: 2.4m/s. Misses requirement | Wind Gusts: 5m/s. Misses requirement | Precipitation Chance: 25%. Misses requirement | Visibility: 9420m. Meets requirement |
| Rule fails. 16:00 | Wind Speed: 1.5m/s. Misses requirement | Wind Gusts: 3.1m/s. Misses requirement | Precipitation Chance: 31%. Misses requirement | Visibility: 3740m. Misses requirement |
| Rule fails. 17:00 | Wind Speed: 1.3m/s. Misses requirement | Wind Gusts: 2.5m/s. Misses requirement | Precipitation Chance: 32%. Misses requirement | Visibility: 8740m. Meets requirement |
| Rule fails. 18:00 | Wind Speed: 1.5m/s. Misses requirement | Wind Gusts: 2.7m/s. Misses requirement | Precipitation Chance: 31%. Misses requirement | Visibility: 13720m. Meets requirement |
| Rule fails. 19:00 | Wind Speed: 1.5m/s. Misses requirement | Wind Gusts: 2.6m/s. Misses requirement | Precipitation Chance: 31%. Misses requirement | Visibility: 18720m. Meets requirement |
| Rule fails. 20:00 | Wind Speed: 1.1m/s. Misses requirement | Wind Gusts: 1.8m/s. Meets requirement | Precipitation Chance: 33%. Misses requirement | Visibility: 16700m. Meets requirement |
| Rule fails. 21:00 | Wind Speed: 0.6m/s. Meets requirement | Wind Gusts: 0.9m/s. Meets requirement | Precipitation Chance: 37%. Misses requirement | Visibility: 14700m. Meets requirement |
| Rule fails. 22:00 | Wind Speed: 0.3m/s. Meets requirement | Wind Gusts: 0.5m/s. Meets requirement | Precipitation Chance: 41%. Misses requirement | Visibility: 12680m. Meets requirement |
| Rule fails. 23:00 | Wind Speed: 0.7m/s. Meets requirement | Wind Gusts: 1.3m/s. Meets requirement | Precipitation Chance: 47%. Misses requirement | Visibility: 15300m. Meets requirement |
| Wed, Sep 23 | ||||
| Rule fails. 24:00 | Wind Speed: 1.3m/s. Misses requirement | Wind Gusts: 2.7m/s. Misses requirement | Precipitation Chance: 54%. Misses requirement | Visibility: 17900m. Meets requirement |
| Rule fails. 01:00 | Wind Speed: 1.7m/s. Misses requirement | Wind Gusts: 3.6m/s. Misses requirement | Precipitation Chance: 59%. Misses requirement | Visibility: 20520m. Meets requirement |
| Rule fails. 02:00 | Wind Speed: 1.6m/s. Misses requirement | Wind Gusts: 3.4m/s. Misses requirement | Precipitation Chance: 60%. Misses requirement | Visibility: 19860m. Meets requirement |
| Rule fails. 03:00 | Wind Speed: 1.3m/s. Misses requirement | Wind Gusts: 2.6m/s. Misses requirement | Precipitation Chance: 58%. Misses requirement | Visibility: 19220m. Meets requirement |
| Rule fails. 04:00 | Wind Speed: 1m/s. Meets requirement | Wind Gusts: 2.1m/s. Misses requirement | Precipitation Chance: 57%. Misses requirement | Visibility: 18560m. Meets requirement |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).
Supporting forecast inputs
Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.
Supporting inputs are unavailable for the displayed forecast period.
How this forecast is evaluated
See which weather signals PhotoWeather uses to identify Mirror Lake conditions across Scotland. The requirements and hourly values above show how those signals apply at Cairngorms.
Explore Mirror Lake conditions across Scotland →Recorded match history
Completed PhotoWeather forecast matches recorded for this exact rule at Cairngorms during the last 365 days.
Last 30 days
7
recorded matching windows · 66% average confidence
Last 90 days
45
recorded matching windows · 69% average confidence
Last 365 days
99
recorded matching windows · 68% average confidence
Most frequent recorded start hour
23:00 local time, shared by 11 of 99 matches recorded in the last 365 days.
Most represented month
July, with 31 of 99 matches recorded in the last 365 days.
These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.
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How this forecast is made
Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.
The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.
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