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Rule Morning Frost

Morning Frost Forecast for Inversnaid, Trossachs & Loch Lomond

Inversnaid, Scotland, United Kingdom

A wooded Loch Lomond shoreline combines a pier, rocky water's edge and Inversnaid waterfall descending beside the hotel.

Currently

Real-time conditions
Soil Temperature11.2°C
Dew Point8.1°C (moderate dew point)
Wind Speed1.7m/s (calm conditions)
Cloud Cover7%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (85-hour forecast)

  • Frost Probability100% of hours
  • Time Window88% of hours
  • Wind Speed54% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across Trossachs & Loch Lomond. The requirements and hourly values below show how those signals apply at Inversnaid.

Explore Morning Frost conditions across Trossachs & Loch Lomond →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Inversnaid during the last 365 days.

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
0
recorded matching windows

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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85-hour requirements breakdown

When available, the detailed table below covers only the stated 85-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
0matching hours in the next 85 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Sat, Aug 22
06:000%1.9m/s
07:000%1.7m/s
08:000%1.5m/s
09:000%1.4m/s
10:000%1.4m/s
11:000%1.3m/s
12:000%1.2m/s
13:000%1.4m/s
14:000%1.7m/s
15:000%2.1m/s
16:000%2.4m/s
17:000%3.3m/s
18:000%3m/s
19:000%1.7m/s
20:000%1.8m/s
21:000%1.7m/s
22:000%1.6m/s
23:000%1.6m/s
Sun, Aug 23
24:000%1.6m/s
01:000%1.5m/s
02:000%1.5m/s
03:000%1.5m/s
04:000%1.5m/s
05:000%1.5m/s
06:000%1.5m/s
07:000%1.4m/s
08:000%0.94m/s
09:000%1.1m/s
10:000%0.88m/s
11:000%0.93m/s
12:000%0.73m/s
13:000%0.6m/s
14:000%0.85m/s
15:000%1.1m/s
16:000%1.3m/s
17:000%1.3m/s
18:000%1.2m/s
19:000%1.1m/s
20:000%1m/s
21:000%0.97m/s
22:000%0.81m/s
23:000%0.66m/s
Mon, Aug 24
24:000%0.59m/s
01:000%0.48m/s
02:000%0.7m/s
03:000%0.92m/s
04:000%0.97m/s
05:000%1m/s
06:000%1.1m/s
07:000%1.2m/s
08:000%1.2m/s
09:000%1.3m/s
10:000%1.6m/s
11:000%1.9m/s
12:000%2.1m/s
13:000%2.5m/s
14:000%3m/s
15:000%3.1m/s
16:000%2.9m/s
17:000%2.8m/s
18:000%2.2m/s
19:000%1.5m/s
20:000%1.5m/s
21:000%1.7m/s
22:000%1.9m/s
23:000%1.9m/s
Tue, Aug 25
24:000%1.8m/s
01:000%1.8m/s
02:000%2.6m/s
03:000%3.3m/s
04:000%4.1m/s
05:000%4.2m/s
06:000%4.4m/s
07:000%4.5m/s
08:000%4.6m/s
09:000%4.7m/s
10:000%4.8m/s
11:000%4.6m/s
12:000%4.5m/s
13:000%4.3m/s
14:000%3.9m/s
15:000%3.6m/s
16:000%3.2m/s
17:000%3.2m/s
18:000%3.2m/s
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Frost Probability mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Europe/London
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Sat, Aug 22 Sunrise 06:02 Sunset 20:39
21:00
8.1°C 11°C 9.8°C - 7% 0.14kPa
22:00
7.5°C 11°C 8.5°C - 25% 0.07kPa
23:00
7.6°C 11°C 8.4°C - 39% 0.06kPa
Sun, Aug 23 Sunrise 06:02 Sunset 20:39
24:00
7.7°C 11°C 8.5°C - 48% 0.06kPa
01:00
7.6°C 11°C 8.6°C - 46% 0.07kPa
02:00
7.2°C 10°C 8.3°C - 80% 0.08kPa
03:00
7°C 10°C 7.9°C - 39% 0.06kPa
04:00
6.5°C 10°C 7.4°C - 52% 0.06kPa
05:00
6.3°C 10°C 7.3°C - 49% 0.06kPa
06:00
6.1°C 9.9°C 7.1°C - 19% 0.07kPa
07:00
6.6°C 9.7°C 8°C - 55% 0.1kPa
08:00
7.8°C 9.7°C 10°C - 49% 0.2kPa
09:00
8.5°C 9.8°C 12°C - 23% 0.33kPa
10:00
8.7°C 10°C 14°C - 5% 0.49kPa
11:00
8.7°C 10°C 16°C - 5% 0.64kPa
12:00
8.7°C 11°C 17°C - 12% 0.77kPa
13:00
8.8°C 11°C 17°C - 61% 0.85kPa
14:00
8.4°C 11°C 17°C - 100% 0.87kPa
15:00
8.9°C 12°C 16°C - 100% 0.7kPa
16:00
10°C 12°C 15°C - 100% 0.48kPa
17:00
10°C 12°C 15°C - 100% 0.47kPa
18:00
10°C 12°C 15°C - 96% 0.43kPa
19:00
11°C 12°C 14°C - 100% 0.35kPa
20:00
9.8°C 12°C 13°C - 100% 0.29kPa
21:00
9.2°C 12°C 12°C - 97% 0.26kPa
22:00
8.9°C 12°C 11°C - 96% 0.19kPa
23:00
8.1°C 12°C 9.6°C - 98% 0.12kPa
Mon, Aug 24 Sunrise 06:04 Sunset 20:36
24:00
7.8°C 12°C 9.3°C - 96% 0.11kPa
01:00
7.6°C 11°C 9.2°C - 85% 0.12kPa
02:00
7.4°C 11°C 9°C - 43% 0.11kPa
03:00
7.1°C 11°C 8.6°C - 29% 0.11kPa
04:00
7°C 11°C 8.4°C - 45% 0.1kPa
05:00
6.8°C 11°C 8.2°C - 61% 0.1kPa
06:00
6.7°C 10°C 8°C - 30% 0.09kPa
07:00
7.1°C 10°C 8.6°C - 52% 0.11kPa
08:00
8.5°C 10°C 11°C - 100% 0.19kPa
09:00
9.1°C 10°C 13°C - 100% 0.3kPa
10:00
9.3°C 11°C 14°C - 92% 0.43kPa
11:00
8.9°C 11°C 15°C - 83% 0.58kPa
12:00
8.7°C 11°C 16°C - 65% 0.71kPa
13:00
8.8°C 11°C 17°C - 35% 0.78kPa
14:00
8.9°C 12°C 17°C - 29% 0.85kPa
15:00
8.6°C 12°C 18°C - 7% 0.93kPa
16:00
8.5°C 12°C 18°C - 12% 0.99kPa
17:00
8.8°C 12°C 18°C - 26% 0.96kPa
18:00
10°C 13°C 18°C - 53% 0.8kPa
19:00
11°C 13°C 16°C - 100% 0.55kPa
20:00
9.4°C 13°C 14°C - 100% 0.42kPa
21:00
8.9°C 13°C 14°C - 100% 0.43kPa
22:00
8.8°C 13°C 13°C - 100% 0.4kPa
23:00
8.9°C 13°C 13°C - 100% 0.35kPa
Tue, Aug 25 Sunrise 06:06 Sunset 20:33
24:00
9.1°C 13°C 13°C - 100% 0.29kPa
01:00
9.3°C 13°C 12°C - 100% 0.23kPa
02:00
9.6°C 13°C 13°C - 100% 0.26kPa
03:00
9.9°C 13°C 13°C - 100% 0.29kPa
04:00
10°C 13°C 14°C - 100% 0.31kPa
05:00
11°C 13°C 14°C - 100% 0.36kPa
06:00
11°C 13°C 15°C - 100% 0.4kPa
07:00
11°C 13°C 16°C - 100% 0.45kPa
08:00
11°C 13°C 16°C - 99% 0.51kPa
09:00
11°C 13°C 16°C - 98% 0.57kPa
10:00
11°C 14°C 17°C - 96% 0.63kPa
11:00
11°C 14°C 16°C - 76% 0.56kPa
12:00
11°C 14°C 16°C - 55% 0.49kPa
13:00
11°C 14°C 15°C - 35% 0.43kPa
14:00
11°C 14°C 14°C - 28% 0.29kPa
15:00
10°C 14°C 12°C - 21% 0.17kPa
16:00
9.7°C 14°C 11°C - 14% 0.07kPa
17:00
9.7°C 13°C 11°C - 42% 0.09kPa
18:00
9.6°C 13°C 11°C - 70% 0.11kPa
19:00
9.5°C 13°C 11°C - 97% 0.13kPa
20:00
9.5°C 13°C 11°C - 98% 0.11kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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.

Forecast generated

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