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Rule Morning Frost

Morning Frost Forecast for Malham Cove, Yorkshire Dales

Malham, England, United Kingdom

A broad limestone amphitheatre rises above Malham Beck, topped by fractured pavement with deep grikes and open dale views.

Currently

Real-time conditions
Soil Temperature14.1°C
Dew Point10.2°C (moderate dew point)
Wind Speed4.5m/s (calm conditions)
Cloud Cover100%

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 (95-hour forecast)

  • Frost Probability100% of hours
  • Wind Speed99% of hours
  • Time Window85% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across Yorkshire Dales. The requirements and hourly values below show how those signals apply at Malham Cove.

Explore Morning Frost conditions across Yorkshire Dales →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Malham Cove 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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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-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 95 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
Sun, Sep 6
23:000%2.4m/s
Mon, Sep 7
24:000%2.5m/s
01:000%2.5m/s
02:000%3.3m/s
03:000%4.4m/s
04:000%4.6m/s
05:000%5.1m/s
06:000%5.2m/s
07:000%5.5m/s
08:000%5.7m/s
09:000%5.5m/s
10:000%6m/s
11:000%6.8m/s
12:000%7.1m/s
13:000%7.4m/s
14:000%7.6m/s
15:000%7.3m/s
16:000%7.7m/s
17:000%6.9m/s
18:000%6m/s
19:000%6.5m/s
20:000%7.6m/s
21:000%7.3m/s
22:000%6.4m/s
23:000%4.5m/s
Tue, Sep 8
24:000%5.8m/s
01:000%5.5m/s
02:000%5.5m/s
03:000%6.1m/s
04:000%6.6m/s
05:000%6.1m/s
06:000%6.1m/s
07:000%5.7m/s
08:000%6.2m/s
09:000%7.4m/s
10:000%7.9m/s
11:000%8.6m/s
12:000%9m/s
13:000%8.9m/s
14:000%8.4m/s
15:000%8.5m/s
16:000%9.1m/s
17:000%9.5m/s
18:000%9.7m/s
19:000%9.7m/s
20:000%9.2m/s
21:000%8.6m/s
22:000%7.9m/s
23:000%7.3m/s
Wed, Sep 9
24:000%6.4m/s
01:000%5.4m/s
02:000%4m/s
03:000%2.4m/s
04:000%2.3m/s
05:000%2m/s
06:000%1.6m/s
07:000%2m/s
08:000%2.8m/s
09:000%4.4m/s
10:000%5.1m/s
11:000%5m/s
12:000%5.1m/s
13:000%5.4m/s
14:000%5.9m/s
15:000%5.6m/s
16:000%6.6m/s
17:000%5.2m/s
18:000%4m/s
19:000%3.5m/s
20:000%2.4m/s
21:000%1.9m/s
22:000%1.3m/s
23:000%1.7m/s
Thu, Sep 10
24:000%2m/s
01:000%2m/s
02:000%2.1m/s
03:000%2m/s
04:000%2.1m/s
05:000%2.3m/s
06:000%2m/s
07:000%1.9m/s
08:000%3.4m/s
09:000%5m/s
10:000%6.6m/s
11:000%5.8m/s
12:000%4.9m/s
13:000%4.1m/s
14:000%4.3m/s
15:000%4.5m/s
16:000%4.7m/s
17:000%4.1m/s
18:000%3.6m/s
19:000%3m/s
20:000%3.3m/s
21:000%3.5m/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
Mon, Sep 7 Sunrise 06:27 Sunset 19:44
23:00
10°C 14°C 11°C - 100% 0.04kPa
Tue, Sep 8 Sunrise 06:27 Sunset 19:44
24:00
9.9°C 14°C 10°C - 100% 0.04kPa
01:00
9.4°C 14°C 10°C - 100% 0.05kPa
02:00
9.4°C 14°C 9.9°C - 100% 0.04kPa
03:00
9.4°C 13°C 10°C - 99% 0.05kPa
04:00
8.7°C 13°C 9.7°C - 100% 0.08kPa
05:00
8.5°C 13°C 9.6°C - 100% 0.09kPa
06:00
8.3°C 13°C 9.6°C - 100% 0.1kPa
07:00
8°C 13°C 9.4°C - 100% 0.1kPa
08:00
8.7°C 13°C 10°C - 100% 0.11kPa
09:00
8.8°C 13°C 11°C - 100% 0.14kPa
10:00
9.4°C 13°C 12°C - 100% 0.19kPa
11:00
8.8°C 13°C 12°C - 53% 0.27kPa
12:00
9.2°C 13°C 12°C - 90% 0.27kPa
13:00
9.2°C 13°C 12°C - 100% 0.26kPa
14:00
9.2°C 13°C 12°C - 100% 0.19kPa
15:00
8.7°C 12°C 11°C - 37% 0.21kPa
16:00
9.4°C 12°C 13°C - 5% 0.31kPa
17:00
9.1°C 13°C 12°C - 42% 0.29kPa
18:00
9.1°C 12°C 12°C - 18% 0.21kPa
19:00
8.9°C 12°C 11°C - 54% 0.16kPa
20:00
8.7°C 12°C 11°C - 86% 0.16kPa
21:00
8.3°C 12°C 11°C - 100% 0.19kPa
22:00
7.8°C 12°C 11°C - 100% 0.27kPa
23:00
7.4°C 12°C 11°C - 99% 0.31kPa
Wed, Sep 9 Sunrise 06:29 Sunset 19:42
24:00
7.2°C 12°C 11°C - 87% 0.29kPa
01:00
7°C 12°C 11°C - 72% 0.28kPa
02:00
7.1°C 12°C 9.8°C - 21% 0.2kPa
03:00
6.3°C 12°C 7.4°C - 24% 0.07kPa
04:00
5.7°C 12°C 6.7°C - 19% 0.07kPa
05:00
5.2°C 11°C 6.3°C - 36% 0.07kPa
06:00
5.2°C 11°C 6.5°C - 28% 0.08kPa
07:00
5.1°C 11°C 6.5°C - 0% 0.09kPa
08:00
5.7°C 11°C 8.2°C - 0% 0.17kPa
09:00
5.6°C 11°C 10°C - 0% 0.32kPa
10:00
4.5°C 11°C 11°C - 0% 0.48kPa
11:00
4.5°C 11°C 12°C - 0% 0.57kPa
12:00
5.6°C 11°C 13°C - 0% 0.61kPa
13:00
6.7°C 11°C 14°C - 5% 0.66kPa
14:00
7.6°C 12°C 15°C - 20% 0.65kPa
15:00
8.5°C 12°C 15°C - 56% 0.57kPa
16:00
8.5°C 12°C 14°C - 100% 0.47kPa
17:00
8.4°C 12°C 13°C - 20% 0.39kPa
18:00
8.5°C 12°C 13°C - 100% 0.37kPa
19:00
8.2°C 12°C 11°C - 100% 0.21kPa
20:00
7.4°C 12°C 8.8°C - 77% 0.11kPa
21:00
6.4°C 12°C 7.9°C - 100% 0.1kPa
22:00
6.2°C 11°C 8°C - 100% 0.13kPa
23:00
6.7°C 11°C 9.1°C - 100% 0.18kPa
Thu, Sep 10 Sunrise 06:31 Sunset 19:39
24:00
7.4°C 11°C 10°C - 100% 0.2kPa
01:00
7.7°C 11°C 9.9°C - 100% 0.17kPa
02:00
7.8°C 11°C 9.8°C - 100% 0.16kPa
03:00
7.7°C 11°C 9.8°C - 100% 0.16kPa
04:00
7.4°C 11°C 9.6°C - 100% 0.16kPa
05:00
7°C 11°C 8.6°C - 100% 0.11kPa
06:00
6.9°C 11°C 8°C - 100% 0.08kPa
07:00
6.8°C 11°C 7.9°C - 100% 0.07kPa
08:00
8°C 11°C 11°C - 100% 0.21kPa
09:00
8.9°C 12°C 13°C - 100% 0.4kPa
10:00
9.5°C 12°C 16°C - 100% 0.65kPa
11:00
9.5°C 12°C 15°C - 100% 0.55kPa
12:00
9.4°C 12°C 15°C - 100% 0.47kPa
13:00
9.3°C 12°C 14°C - 100% 0.39kPa
14:00
9.9°C 12°C 13°C - 100% 0.3kPa
15:00
10°C 12°C 13°C - 100% 0.22kPa
16:00
11°C 12°C 12°C - 100% 0.14kPa
17:00
11°C 12°C 12°C - 100% 0.12kPa
18:00
11°C 12°C 12°C - 100% 0.1kPa
19:00
11°C 12°C 12°C - 100% 0.08kPa
20:00
12°C 12°C 12°C - 100% 0.06kPa
21:00
12°C 12°C 12°C - 99% 0.05kPa
22:00
12°C 12°C 13°C - 99% 0.03kPa
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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