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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
Wind Speed 100% failing
Time Window 86% failing

Currently

Real-time conditions
Soil Temperature5.5°C
Dew Point4.7°C (low dew point)
Wind Speed12.2m/s (moderate winds)
Cloud Cover100%

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
Fri, Apr 3
20:0026%9.4m/s
21:0011%9.4m/s
22:0022%8.4m/s
23:0026%7m/s
Sat, Apr 4
24:0026%6.2m/s
01:0028%5.5m/s
02:0026%6.4m/s
03:0026%5.9m/s
04:0030%4.5m/s
05:0028%3m/s
06:0016%2m/s
07:0016%2.3m/s
08:0015%2.3m/s
09:0017%3.4m/s
10:0013%3.4m/s
11:0013%2.8m/s
12:0017%3.5m/s
13:0015%4.3m/s
14:0016%7.6m/s
15:0019%9.9m/s
16:0031%9.9m/s
17:0027%11m/s
18:0019%11m/s
19:0014%11m/s
20:0014%12m/s
21:0014%12m/s
22:0011%16m/s
23:0021%14m/s
Sun, Apr 5
24:0011%15m/s
01:0011%15m/s
02:007%14m/s
03:0011%13m/s
04:0012%13m/s
05:0022%11m/s
06:0012%8.7m/s
07:0018%7.2m/s
08:0014%7.1m/s
09:0016%8.6m/s
10:009%7.2m/s
11:0013%9.4m/s
12:0016%10m/s
13:0028%10m/s
14:0025%11m/s
15:0025%11m/s
16:0033%10m/s
17:0023%10m/s
18:0022%8.9m/s
19:0016%7m/s
20:0015%5.4m/s
21:0017%3.2m/s
22:0019%2.1m/s
23:0019%1.8m/s
Mon, Apr 6
24:0019%2m/s
01:0019%2m/s
02:0019%2m/s
03:0019%2m/s
04:0015%2.1m/s
05:0019%1.8m/s
06:0019%1.7m/s
07:0019%2m/s
08:0022%1.9m/s
09:0022%2.1m/s
10:0033%3.5m/s
11:0037%4.1m/s
12:0039%4.8m/s
13:0048%5.2m/s
14:0034%5.5m/s
15:0033%5.7m/s
16:0031%5.3m/s
17:0031%4.3m/s
18:0020%3.5m/s
19:0022%2.6m/s
20:0019%2.2m/s
21:0019%2.2m/s
22:0016%2.1m/s
23:0019%2m/s
Tue, Apr 7
24:0019%2.1m/s
01:0015%2m/s
02:0020%3m/s
03:0028%4m/s
04:0029%5.1m/s
05:0027%5.6m/s
06:0025%6.2m/s
07:0029%6.7m/s
08:002.8%6.6m/s
09:002.8%6.4m/s
10:002.8%6.3m/s
11:002.6%5.5m/s
12:000%4.7m/s
13:000%3.8m/s
14:000%3.4m/s
15:000%3m/s
16:000%2.5m/s
17:001.2%2.6m/s
18:001.2%2.7m/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, Apr 4 Sunrise 06:34 Sunset 19:50
20:00
4.7°C 5.5°C 7.4°C - 100% 0.17kPa
21:00
5.5°C 5.6°C 7.1°C - 100% 0.11kPa
22:00
4.8°C 5.6°C 5.9°C - 99% 0.07kPa
23:00
2.2°C 5.5°C 4.5°C - 28% 0.13kPa
Sun, Apr 5 Sunrise 06:34 Sunset 19:50
24:00
1.9°C 5.4°C 3.8°C - 100% 0.1kPa
01:00
2.9°C 5.3°C 4.2°C - 100% 0.07kPa
02:00
2.9°C 5.2°C 3.7°C - 100% 0.04kPa
03:00
0.1°C 5°C 1.4°C - 100% 0.06kPa
04:00
-0.8°C 4.8°C 1.1°C - 76% 0.08kPa
05:00
-1.2°C 4.5°C 0.94°C - 21% 0.09kPa
06:00
-1.3°C 4.3°C 0.69°C - 72% 0.09kPa
07:00
-0.8°C 4.1°C 0.78°C - 33% 0.07kPa
08:00
-0.4°C 3.9°C 1.5°C - 73% 0.08kPa
09:00
0°C 3.9°C 2.5°C - 97% 0.12kPa
10:00
2°C 3.9°C 2.2°C - 100% 0.01kPa
11:00
0.5°C 3.8°C 1.6°C - 93% 0.05kPa
12:00
0.4°C 3.7°C 2.5°C - 90% 0.11kPa
13:00
0.2°C 3.7°C 3.5°C - 40% 0.17kPa
14:00
0.1°C 3.8°C 3.7°C - 63% 0.18kPa
15:00
0.4°C 4°C 3.7°C - 74% 0.17kPa
16:00
0.1°C 4.1°C 3.8°C - 25% 0.19kPa
17:00
0°C 4.2°C 3.5°C - 64% 0.17kPa
18:00
-0.2°C 4.1°C 2.8°C - 100% 0.14kPa
19:00
-0.7°C 4°C 2°C - 97% 0.12kPa
20:00
-1.2°C 3.8°C 0.86°C - 100% 0.09kPa
21:00
-1.6°C 3.7°C -0.15°C - 100% 0.06kPa
22:00
-2°C 3.7°C -0.74°C - 100% 0.05kPa
23:00
-2.3°C 3.7°C -0.97°C - 100% 0.05kPa
Mon, Apr 6 Sunrise 06:31 Sunset 19:52
24:00
-2.2°C 3.7°C -0.95°C - 100% 0.05kPa
01:00
-2.2°C 3.7°C -1°C - 100% 0.05kPa
02:00
-2.2°C 3.7°C -1°C - 100% 0.05kPa
03:00
-2.1°C 3.7°C -1°C - 97% 0.04kPa
04:00
-1.9°C 3.7°C -0.93°C - 98% 0.04kPa
05:00
-1.9°C 3.7°C -0.76°C - 97% 0.05kPa
06:00
-1.9°C 3.7°C -0.55°C - 100% 0.05kPa
07:00
-1.5°C 3.5°C 0.32°C - 100% 0.08kPa
08:00
-0.8°C 3.4°C 1.6°C - 100% 0.11kPa
09:00
0°C 3.4°C 3°C - 81% 0.15kPa
10:00
-0.1°C 3.4°C 4.8°C - 91% 0.26kPa
11:00
-0.6°C 3.4°C 5.9°C - 83% 0.34kPa
12:00
0.1°C 3.4°C 7.2°C - 60% 0.4kPa
13:00
1.4°C 3.4°C 8.2°C - 6% 0.41kPa
14:00
2.2°C 3.4°C 8.8°C - 67% 0.42kPa
15:00
3.1°C 3.4°C 9.2°C - 83% 0.4kPa
16:00
4°C 3.4°C 9.1°C - 99% 0.35kPa
17:00
4.9°C 3.5°C 8.4°C - 100% 0.23kPa
18:00
5.2°C 3.6°C 8°C - 100% 0.19kPa
19:00
5°C 3.9°C 7.2°C - 100% 0.14kPa
20:00
4°C 3.9°C 5.4°C - 100% 0.08kPa
21:00
3.5°C 3.9°C 4.6°C - 100% 0.07kPa
22:00
3.1°C 3.9°C 4.1°C - 62% 0.06kPa
23:00
2.8°C 3.8°C 3.8°C - 53% 0.05kPa
Tue, Apr 7 Sunrise 06:29 Sunset 19:54
24:00
2.7°C 3.7°C 3.6°C - 54% 0.05kPa
01:00
2.6°C 3.6°C 3.5°C - 98% 0.05kPa
02:00
2.9°C 3.8°C 4.8°C - 95% 0.11kPa
03:00
3.1°C 3.9°C 6.2°C - 92% 0.18kPa
04:00
3.2°C 4.1°C 7.6°C - 89% 0.27kPa
05:00
3.9°C 4.6°C 9°C - 88% 0.34kPa
06:00
4.6°C 5.2°C 10°C - 87% 0.42kPa
07:00
5.1°C 5.8°C 12°C - 85% 0.52kPa
08:00
5.7°C 6.3°C 12°C - 90% 0.53kPa
09:00
6.2°C 6.9°C 13°C - 95% 0.55kPa
10:00
6.7°C 7.5°C 14°C - 100% 0.57kPa
11:00
7.1°C 7.8°C 13°C - 96% 0.47kPa
12:00
7.5°C 8.1°C 12°C - 92% 0.37kPa
13:00
7.7°C 8.4°C 11°C - 88% 0.28kPa
14:00
7.4°C 8.2°C 9.9°C - 92% 0.19kPa
15:00
7°C 8.1°C 8.6°C - 96% 0.12kPa
16:00
6.5°C 8°C 7.2°C - 100% 0.05kPa
17:00
6.1°C 7.8°C 7°C - 100% 0.06kPa
18:00
5.8°C 7.7°C 6.7°C - 100% 0.06kPa
19:00
5.4°C 7.5°C 6.5°C - 100% 0.07kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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