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Rule Morning Frost

Utrecht - Morning Frost - The Netherlands

Utrecht, Utrecht, The Netherlands

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 83% failing

Currently

Real-time conditions
Soil Temperature9.7°C
Dew Point9.5°C (moderate dew point)
Wind Speed3.4m/s (calm conditions)
Cloud Cover100%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Amsterdam

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

Dutch winters, when temperatures drop below freezing for extended periods, transform the country's canals and polders into a magical frozen landscape. Hoar frost decorates windmills, creating delicate ice crystal coatings that catch morning light. The historic Elfstedentocht (Eleven Cities Tour) ice-skating conditions—though rare—exemplify the photography potential.

The flat landscape and high humidity create ideal conditions for heavy frost formation. Windmills accumulate intricate ice crystals on their wooden blades and structures. When canals freeze solid, the Netherlands' character transforms—the water that defines the landscape becomes walkable, creating unique perspectives.

What makes Dutch frost photography special:

  • Windmill ice crystals - Hoar frost coating historic structures in delicate white patterns
  • Frozen canal perspective - Unique viewpoints walking on typically impassable water
  • Polder snow simplicity - Minimalist white expanses broken only by windmills and farms
  • Urban canal ice - Amsterdam and Leiden's waterways frozen with footprints and skate tracks

True freezing conditions requiring sustained temperatures below -5°C for multiple days are becoming rarer with climate change. When they occur (typically January-February), act quickly—conditions may last only days. Best frost photography occurs at sunrise when low-angle light illuminates ice crystals. The Kinderdijk, Giethoorn's canals, and rural polders of Friesland offer exceptional winter scenes. Safety first—never venture onto ice without local knowledge of thickness.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 74 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Amsterdam
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Mon, May 18
06:000%2.1m/s
07:000%1.9m/s
08:000%2.2m/s
09:000%2.8m/s
10:000%3.4m/s
11:000%3.5m/s
12:000%3.9m/s
13:000%3.6m/s
14:000%4.1m/s
15:000%4.5m/s
16:000%4.4m/s
17:000%4.8m/s
18:000%3.6m/s
19:000%3m/s
20:000%1.9m/s
21:000%1.8m/s
22:000%1.6m/s
23:000%2m/s
Tue, May 19
24:000%2.2m/s
01:000%2.3m/s
02:000%2.3m/s
03:000%2.3m/s
04:000%2.6m/s
05:000%2.7m/s
06:000%2.6m/s
07:000%2.6m/s
08:000%3.3m/s
09:000%4m/s
10:000%4.8m/s
11:000%5.4m/s
12:000%5.6m/s
13:000%5.9m/s
14:000%5.2m/s
15:000%5.5m/s
16:000%5.8m/s
17:000%5.9m/s
18:000%5.8m/s
19:000%5.5m/s
20:000%5m/s
21:000%5.2m/s
22:000%5.6m/s
23:000%5.7m/s
Wed, May 20
24:000%5.2m/s
01:000%5m/s
02:000%4.7m/s
03:000%4.5m/s
04:000%4.5m/s
05:000%4.7m/s
06:000%4.7m/s
07:000%4.9m/s
08:000%5.1m/s
09:000%5.5m/s
10:000%5.5m/s
11:000%6m/s
12:000%6.3m/s
13:000%6.4m/s
14:000%6.3m/s
15:000%5.6m/s
16:000%4.9m/s
17:000%4.3m/s
18:000%4m/s
19:000%3.7m/s
20:000%3.4m/s
21:000%3.2m/s
22:000%3.1m/s
23:000%2.9m/s
Thu, May 21
24:000%3.1m/s
01:000%3.3m/s
02:000%3.4m/s
03:000%3.8m/s
04:000%4.2m/s
05:000%4.5m/s
06:000%4.4m/s
07:000%4.4m/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/Amsterdam
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Mon, May 18 Sunrise 05:41 Sunset 21:31
10:00
9.5°C 9.7°C 11°C - 100% 0.14kPa
11:00
9.7°C 9.8°C 12°C - 100% 0.22kPa
12:00
9.7°C 10°C 13°C - 100% 0.28kPa
13:00
9.5°C 10°C 13°C - 100% 0.36kPa
14:00
9.5°C 10°C 14°C - 100% 0.43kPa
15:00
9.5°C 11°C 14°C - 69% 0.42kPa
16:00
9.7°C 11°C 14°C - 86% 0.38kPa
17:00
10°C 11°C 14°C - 83% 0.32kPa
18:00
9.8°C 11°C 13°C - 34% 0.3kPa
19:00
9.7°C 11°C 13°C - 22% 0.29kPa
20:00
9.8°C 11°C 12°C - 36% 0.21kPa
21:00
8.3°C 11°C 10°C - 9% 0.15kPa
22:00
7.4°C 11°C 8.8°C - 17% 0.11kPa
23:00
7.2°C 11°C 8.3°C - 13% 0.08kPa
Tue, May 19 Sunrise 05:41 Sunset 21:31
24:00
7.1°C 10°C 8°C - 9% 0.06kPa
01:00
6.6°C 10°C 7.5°C - 5% 0.06kPa
02:00
6.2°C 10°C 7.1°C - 5% 0.06kPa
03:00
5.8°C 9.8°C 6.6°C - 5% 0.05kPa
04:00
5.8°C 9.6°C 6.5°C - 21% 0.04kPa
05:00
5.7°C 9.4°C 6.3°C - 86% 0.03kPa
06:00
5.7°C 9.2°C 6.3°C - 96% 0.03kPa
07:00
6.6°C 9°C 7.3°C - 100% 0.04kPa
08:00
7.7°C 9°C 8.9°C - 100% 0.08kPa
09:00
8.6°C 9.1°C 10°C - 100% 0.13kPa
10:00
8.8°C 9.3°C 11°C - 100% 0.21kPa
11:00
8.7°C 9.5°C 12°C - 100% 0.3kPa
12:00
8.7°C 9.7°C 13°C - 100% 0.34kPa
13:00
8.5°C 9.9°C 14°C - 100% 0.44kPa
14:00
9.1°C 10°C 12°C - 100% 0.25kPa
15:00
9.1°C 10°C 11°C - 100% 0.19kPa
16:00
9.1°C 10°C 11°C - 100% 0.18kPa
17:00
9.4°C 10°C 11°C - 100% 0.11kPa
18:00
9.5°C 10°C 11°C - 100% 0.1kPa
19:00
10°C 10°C 11°C - 100% 0.12kPa
20:00
11°C 10°C 12°C - 100% 0.14kPa
21:00
11°C 10°C 12°C - 96% 0.16kPa
22:00
11°C 10°C 12°C - 80% 0.11kPa
23:00
11°C 10°C 12°C - 80% 0.08kPa
Wed, May 20 Sunrise 05:39 Sunset 21:33
24:00
11°C 10°C 12°C - 95% 0.06kPa
01:00
11°C 10°C 12°C - 83% 0.05kPa
02:00
10°C 10°C 11°C - 100% 0.09kPa
03:00
9.3°C 10°C 10°C - 78% 0.06kPa
04:00
8.9°C 10°C 9.5°C - 100% 0.05kPa
05:00
9°C 10°C 9.6°C - 100% 0.05kPa
06:00
9.3°C 10°C 10°C - 100% 0.06kPa
07:00
9.6°C 10°C 11°C - 67% 0.08kPa
08:00
10°C 10°C 12°C - 97% 0.13kPa
09:00
10°C 10°C 12°C - 100% 0.18kPa
10:00
11°C 10°C 12°C - 100% 0.14kPa
11:00
11°C 10°C 12°C - 100% 0.13kPa
12:00
11°C 11°C 13°C - 100% 0.17kPa
13:00
11°C 11°C 13°C - 100% 0.17kPa
14:00
12°C 11°C 14°C - 100% 0.23kPa
15:00
11°C 11°C 14°C - 91% 0.22kPa
16:00
11°C 12°C 13°C - 82% 0.22kPa
17:00
10°C 13°C 13°C - 73% 0.22kPa
18:00
10°C 13°C 12°C - 50% 0.17kPa
19:00
10°C 12°C 12°C - 28% 0.12kPa
20:00
10°C 12°C 11°C - 5% 0.08kPa
21:00
9.8°C 12°C 11°C - 5% 0.07kPa
22:00
9.5°C 12°C 10°C - 5% 0.06kPa
23:00
9.3°C 12°C 9.9°C - 5% 0.05kPa
Thu, May 21 Sunrise 05:38 Sunset 21:34
24:00
9.7°C 12°C 11°C - 37% 0.09kPa
01:00
10°C 12°C 12°C - 68% 0.13kPa
02:00
11°C 11°C 13°C - 100% 0.18kPa
03:00
11°C 12°C 14°C - 100% 0.31kPa
04:00
11°C 12°C 16°C - 100% 0.47kPa
05:00
11°C 12°C 18°C - 100% 0.66kPa
06:00
11°C 13°C 19°C - 96% 0.84kPa
07:00
11°C 13°C 20°C - 92% 1kPa
08:00
10°C 13°C 21°C - 88% 1.3kPa
09:00
10°C 14°C 21°C - 61% 1.3kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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