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Rule Morning Frost

Hawes - Morning Frost - Yorkshire Dales

Hawes, England, United Kingdom

Frost crystals on calm, cold mornings near sunrise

No opportunities right now
Here’s what usually blocks matches

No Morning Frost opportunities in the next 14 days

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Rule requirements (key thresholds)
Time Window · Sunrise -45m to +90m Frost Probability · ≥ 60.0% Wind Speed · ≤ 1.5m/s

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Frost Probability 100% failing
Time Window 88% failing
Wind Speed 58% failing

Currently

Real-time conditions
Soil Temperature15.1°C
Dew Point17.7°C (high dew point)
Wind Speed3.2m/s (calm conditions)
Cloud Cover8%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

What this forecast looks for

Plain-language explanation from the rule

This forecast identifies when freezing conditions create photogenic frost patterns across the Yorkshire Dales' distinctive limestone landscape. We track overnight temperatures, humidity, clear skies, and wind conditions to predict when hoar frost transforms waterfalls, stone walls, and limestone formations.

The Dales' elevation and northern position mean frost conditions are common from November through March. Freezing temperatures transform the region's numerous waterfalls into ice sculptures, while hoar frost decorates limestone pavements and thousands of miles of dry-stone walls with intricate crystal patterns.

What makes Yorkshire Dales frost photography special:

  • Frozen waterfalls - Aysgarth Falls and Hardraw Force develop dramatic ice formations in extended freezes
  • Limestone patterns - Hoar frost accentuates the geometric clints and grikes of limestone pavements
  • Stone wall networks - Miles of traditional walls become white geometric patterns across frozen hillsides
  • Historic barns - Field barns and traditional stone buildings gain fairy-tale quality under heavy frost

Aysgarth Falls' triple cascades develop stunning ice formations during prolonged freezes, with water still flowing beneath frozen edges. Hardraw Force—England's highest single-drop waterfall—creates an amphitheater of ice when temperatures stay below freezing for days. The limestone pavement at Malham becomes even more geometric under hoar frost, with ice crystals following the rock's natural patterns. Traditional field barns scattered across high pastures gain storybook quality when frost-covered under blue winter skies. Bolton Abbey's medieval priory ruins take on Gothic atmosphere when frost-covered. Stone walls create endless compositional opportunities—their geometric patterns emphasized by frost against dark winter grass. Dawn light is crucial—arrive early to catch low sun illuminating frost crystals before they melt. Cold, clear nights with high pressure produce the heaviest frost.

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72-hour requirements breakdown

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
Tue, Jul 7
14:000%6.9m/s
15:000%6.5m/s
16:000%5.8m/s
17:000%4.9m/s
18:000%4.8m/s
19:000%5.8m/s
20:000%4.7m/s
21:000%2.9m/s
22:000%2.7m/s
23:000%2.5m/s
Wed, Jul 8
24:000%2.4m/s
01:000%2.3m/s
02:000%2.2m/s
03:000%2.2m/s
04:000%2.2m/s
05:000%2m/s
06:000%1.8m/s
07:000%1.7m/s
08:000%1.9m/s
09:000%2.1m/s
10:000%2.2m/s
11:000%2.6m/s
12:000%2.9m/s
13:000%3.1m/s
14:000%3.4m/s
15:000%3.2m/s
16:000%3.2m/s
17:000%3.1m/s
18:000%2m/s
19:000%1.7m/s
20:000%1.4m/s
21:000%1.4m/s
22:000%1m/s
23:000%0.99m/s
Thu, Jul 9
24:000%1.2m/s
01:000%1.2m/s
02:000%1.3m/s
03:000%1.2m/s
04:000%1.3m/s
05:000%1.2m/s
06:000%1.2m/s
07:000%1.2m/s
08:000%1.5m/s
09:000%1.8m/s
10:000%2m/s
11:000%2.3m/s
12:000%2.9m/s
13:000%2.9m/s
14:000%2.8m/s
15:000%3m/s
16:000%2.8m/s
17:000%2.5m/s
18:000%2.1m/s
19:000%1.7m/s
20:000%1.3m/s
21:000%1.2m/s
22:000%1.3m/s
23:000%1.6m/s
Fri, Jul 10
24:000%1.8m/s
01:000%1.9m/s
02:000%1.8m/s
03:000%1.6m/s
04:000%1.5m/s
05:000%1.4m/s
06:000%1.5m/s
07:000%1.5m/s
08:000%1.3m/s
09:000%1.3m/s
10:000%1.5m/s
11:000%2m/s
12:000%1.9m/s
13:000%1.6m/s
14:000%1.2m/s
15:000%0.38m/s
16:000%0.2m/s
17:000%0.89m/s
18:000%1.3m/s
19:000%1.6m/s
20:000%1.5m/s
21:000%1.3m/s
22:000%1.2m/s
23:000%1.4m/s
Sat, Jul 11
24:000%1.5m/s
01:000%1.7m/s
02:000%1.9m/s
03:000%2.2m/s
04:000%2.4m/s
05:000%2.6m/s
06:000%2.9m/s
07:000%3.1m/s
08:000%3.8m/s
09:000%4.4m/s
10:000%5.1m/s
11:000%4.9m/s
12:000%4.8m/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
Wed, Jul 8 Sunrise 04:45 Sunset 21:41
15:00
18°C 15°C 22°C - 8% 0.67kPa
16:00
18°C 15°C 22°C - 5% 0.66kPa
17:00
17°C 16°C 22°C - 5% 0.67kPa
18:00
16°C 16°C 21°C - 5% 0.7kPa
19:00
16°C 16°C 21°C - 3% 0.64kPa
20:00
17°C 16°C 20°C - 5% 0.39kPa
21:00
15°C 16°C 17°C - 5% 0.26kPa
22:00
13°C 16°C 15°C - 29% 0.24kPa
23:00
12°C 16°C 14°C - 62% 0.26kPa
Thu, Jul 9 Sunrise 04:45 Sunset 21:41
24:00
11°C 15°C 14°C - 100% 0.27kPa
01:00
10°C 15°C 13°C - 100% 0.28kPa
02:00
9.8°C 15°C 13°C - 6% 0.29kPa
03:00
9.4°C 15°C 12°C - 0% 0.27kPa
04:00
9.4°C 15°C 12°C - 0% 0.25kPa
05:00
9.6°C 14°C 12°C - 0% 0.21kPa
06:00
11°C 14°C 13°C - 0% 0.22kPa
07:00
13°C 14°C 15°C - 0% 0.3kPa
08:00
14°C 14°C 17°C - 0% 0.39kPa
09:00
14°C 14°C 18°C - 0% 0.48kPa
10:00
15°C 15°C 19°C - 0% 0.55kPa
11:00
16°C 15°C 20°C - 0% 0.62kPa
12:00
16°C 15°C 21°C - 0% 0.67kPa
13:00
16°C 15°C 22°C - 0% 0.74kPa
14:00
16°C 15°C 22°C - 0% 0.82kPa
15:00
16°C 16°C 22°C - 0% 0.85kPa
16:00
16°C 16°C 22°C - 0% 0.83kPa
17:00
17°C 16°C 22°C - 0% 0.77kPa
18:00
17°C 16°C 22°C - 0% 0.67kPa
19:00
17°C 16°C 21°C - 86% 0.55kPa
20:00
18°C 16°C 20°C - 62% 0.31kPa
21:00
17°C 16°C 18°C - 26% 0.17kPa
22:00
16°C 16°C 17°C - 37% 0.12kPa
23:00
15°C 16°C 16°C - 82% 0.11kPa
Fri, Jul 10 Sunrise 04:47 Sunset 21:40
24:00
15°C 16°C 16°C - 87% 0.12kPa
01:00
15°C 16°C 16°C - 44% 0.14kPa
02:00
14°C 16°C 15°C - 5% 0.15kPa
03:00
14°C 16°C 15°C - 4% 0.16kPa
04:00
13°C 16°C 15°C - 48% 0.17kPa
05:00
13°C 16°C 15°C - 29% 0.18kPa
06:00
13°C 15°C 15°C - 100% 0.21kPa
07:00
15°C 15°C 17°C - 100% 0.29kPa
08:00
15°C 15°C 19°C - 99% 0.45kPa
09:00
15°C 16°C 20°C - 94% 0.62kPa
10:00
15°C 16°C 21°C - 5% 0.81kPa
11:00
16°C 16°C 22°C - 50% 0.94kPa
12:00
16°C 16°C 23°C - 14% 1kPa
13:00
16°C 16°C 24°C - 5% 1.2kPa
14:00
16°C 17°C 25°C - 5% 1.3kPa
15:00
16°C 17°C 25°C - 6% 1.4kPa
16:00
15°C 17°C 26°C - 70% 1.5kPa
17:00
16°C 18°C 26°C - 6% 1.5kPa
18:00
16°C 18°C 25°C - 5% 1.4kPa
19:00
19°C 18°C 24°C - 66% 0.92kPa
20:00
17°C 18°C 21°C - 77% 0.53kPa
21:00
15°C 17°C 17°C - 89% 0.26kPa
22:00
13°C 17°C 14°C - 100% 0.07kPa
23:00
13°C 17°C 14°C - 100% 0.06kPa
Sat, Jul 11 Sunrise 04:48 Sunset 21:39
24:00
14°C 17°C 14°C - 100% 0.05kPa
01:00
14°C 17°C 14°C - 100% 0.04kPa
02:00
14°C 16°C 15°C - 100% 0.05kPa
03:00
14°C 16°C 15°C - 100% 0.07kPa
04:00
14°C 16°C 15°C - 100% 0.08kPa
05:00
14°C 16°C 15°C - 100% 0.11kPa
06:00
14°C 16°C 15°C - 100% 0.13kPa
07:00
14°C 16°C 16°C - 100% 0.16kPa
08:00
14°C 16°C 16°C - 100% 0.22kPa
09:00
14°C 16°C 16°C - 100% 0.28kPa
10:00
14°C 16°C 17°C - 100% 0.34kPa
11:00
13°C 16°C 16°C - 100% 0.27kPa
12:00
13°C 16°C 15°C - 100% 0.21kPa
13:00
13°C 16°C 15°C - 100% 0.15kPa
14:00
13°C 16°C 14°C - 100% 0.12kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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