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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 96% failing
Time Window 88% failing

Currently

Real-time conditions
Soil Temperature9.8°C
Dew Point3.3°C (low dew point)
Wind Speed2.7m/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 95 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
Wed, Apr 8
03:000%3.7m/s
04:000%3.5m/s
05:004.5%3.4m/s
06:004.5%3.3m/s
07:004.5%2.9m/s
08:004.5%3m/s
09:004.5%3.3m/s
10:004.7%3.8m/s
11:000%4.1m/s
12:000%3.7m/s
13:000%3.8m/s
14:000%3.8m/s
15:000%3.8m/s
16:000%3.3m/s
17:000%3.2m/s
18:000%3m/s
19:000%3.1m/s
20:000%3.4m/s
21:000%3.5m/s
22:000%3.4m/s
23:000%3.3m/s
Thu, Apr 9
24:000%3.1m/s
01:000%3m/s
02:000%2.9m/s
03:000%2.6m/s
04:000%2.7m/s
05:000%2.5m/s
06:000%2.5m/s
07:000%2.7m/s
08:000%2.7m/s
09:000%2.9m/s
10:000%2.9m/s
11:000%3.1m/s
12:000%3.3m/s
13:000%3.5m/s
14:000%3.5m/s
15:000%3.7m/s
16:000%3.9m/s
17:000%4m/s
18:000%3.4m/s
19:000%3.5m/s
20:000%2.6m/s
21:000%2.4m/s
22:000%3.5m/s
23:000%3.7m/s
Fri, Apr 10
24:000%7m/s
01:000%5.2m/s
02:000%5m/s
03:000%5.7m/s
04:000%5.3m/s
05:000%5.1m/s
06:000%4.5m/s
07:000%3.7m/s
08:000%2.8m/s
09:000%3m/s
10:000%2.7m/s
11:000%2.4m/s
12:000%1.9m/s
13:000%1.9m/s
14:000%1.6m/s
15:000%1.6m/s
16:000%1.6m/s
17:000%1.3m/s
18:000%1.1m/s
19:000%1.3m/s
20:000%1.5m/s
21:000%1.8m/s
22:000%2.1m/s
23:000%2.5m/s
Sat, Apr 11
24:000%3.3m/s
01:000%3.9m/s
02:000%4.2m/s
03:000%4.1m/s
04:000%3.8m/s
05:000%4m/s
06:000%4.4m/s
07:000%4.4m/s
08:000%4.7m/s
09:000%4.9m/s
10:000%5.1m/s
11:000%5.3m/s
12:000%5.4m/s
13:000%5.4m/s
14:000%5.4m/s
15:000%4.5m/s
16:000%3.6m/s
17:000%2.7m/s
18:000%2.8m/s
19:000%3m/s
20:000%3.2m/s
21:000%3.5m/s
22:000%3.7m/s
23:001.7%4m/s
Sun, Apr 12
24:001.5%4.3m/s
01:001.5%4.5m/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/Amsterdam
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Thu, Apr 9 Sunrise 06:56 Sunset 20:26
04:00
3.3°C 9.8°C 8.3°C - 100% 0.32kPa
05:00
3.9°C 9.6°C 8.3°C - 100% 0.29kPa
06:00
4.2°C 9.4°C 8.4°C - 100% 0.28kPa
07:00
4.6°C 9.2°C 8.2°C - 100% 0.24kPa
08:00
5.5°C 9.1°C 8.9°C - 100% 0.24kPa
09:00
6.6°C 9.2°C 11°C - 100% 0.31kPa
10:00
7.6°C 9.5°C 13°C - 100% 0.45kPa
11:00
8.4°C 10°C 15°C - 100% 0.62kPa
12:00
9.2°C 11°C 17°C - 57% 0.76kPa
13:00
10°C 11°C 19°C - 79% 0.88kPa
14:00
11°C 12°C 20°C - 5% 1kPa
15:00
11°C 13°C 21°C - 100% 1.1kPa
16:00
11°C 13°C 21°C - 100% 1.1kPa
17:00
12°C 14°C 21°C - 100% 1kPa
18:00
13°C 14°C 20°C - 100% 0.82kPa
19:00
12°C 14°C 17°C - 100% 0.52kPa
20:00
11°C 14°C 15°C - 100% 0.39kPa
21:00
11°C 14°C 13°C - 100% 0.25kPa
22:00
11°C 14°C 13°C - 100% 0.15kPa
23:00
11°C 13°C 13°C - 100% 0.13kPa
Fri, Apr 10 Sunrise 06:56 Sunset 20:26
24:00
8.5°C 13°C 10°C - 100% 0.14kPa
01:00
5.9°C 13°C 9.2°C - 100% 0.23kPa
02:00
5.6°C 12°C 9°C - 100% 0.24kPa
03:00
5.6°C 12°C 8.2°C - 100% 0.18kPa
04:00
4.7°C 11°C 7.8°C - 100% 0.2kPa
05:00
4°C 11°C 7.4°C - 100% 0.22kPa
06:00
3.6°C 11°C 7.2°C - 100% 0.23kPa
07:00
3°C 10°C 6.7°C - 100% 0.22kPa
08:00
2.9°C 9.9°C 6.7°C - 100% 0.23kPa
09:00
2.5°C 9.7°C 7.7°C - 100% 0.32kPa
10:00
2.1°C 9.7°C 8.4°C - 100% 0.39kPa
11:00
1.8°C 9.7°C 9.2°C - 100% 0.46kPa
12:00
1.6°C 9.9°C 10°C - 100% 0.55kPa
13:00
1.6°C 10°C 11°C - 100% 0.63kPa
14:00
1.4°C 11°C 12°C - 100% 0.7kPa
15:00
1.1°C 11°C 12°C - 86% 0.75kPa
16:00
1.1°C 11°C 13°C - 82% 0.8kPa
17:00
1°C 11°C 13°C - 100% 0.8kPa
18:00
1.5°C 11°C 12°C - 98% 0.74kPa
19:00
3.1°C 11°C 11°C - 100% 0.58kPa
20:00
3.2°C 11°C 9.6°C - 100% 0.42kPa
21:00
2.6°C 11°C 8.7°C - 99% 0.39kPa
22:00
2.1°C 11°C 7.8°C - 100% 0.35kPa
23:00
1.7°C 10°C 7.6°C - 100% 0.35kPa
Sat, Apr 11 Sunrise 06:54 Sunset 20:28
24:00
1.4°C 10°C 7.7°C - 100% 0.37kPa
01:00
1.5°C 9.8°C 7.6°C - 100% 0.36kPa
02:00
1.3°C 9.5°C 7.7°C - 100% 0.38kPa
03:00
1.1°C 9.3°C 7.2°C - 100% 0.36kPa
04:00
1.2°C 9.1°C 6.9°C - 100% 0.33kPa
05:00
1.5°C 8.9°C 7.2°C - 100% 0.33kPa
06:00
1.9°C 8.8°C 7.5°C - 100% 0.33kPa
07:00
2.4°C 8.6°C 7.8°C - 100% 0.33kPa
08:00
3.2°C 8.6°C 8.1°C - 100% 0.31kPa
09:00
6.4°C 9.3°C 9.8°C - 100% 0.25kPa
10:00
9.5°C 10°C 11°C - 100% 0.17kPa
11:00
13°C 11°C 13°C - 100% 0.06kPa
12:00
11°C 11°C 12°C - 100% 0.09kPa
13:00
8.7°C 10°C 10°C - 100% 0.11kPa
14:00
6.7°C 10°C 8.6°C - 100% 0.13kPa
15:00
6.2°C 10°C 8.1°C - 100% 0.13kPa
16:00
5.7°C 9.8°C 7.7°C - 100% 0.13kPa
17:00
5.1°C 9.5°C 7.2°C - 100% 0.14kPa
18:00
4.9°C 9.2°C 6.8°C - 100% 0.12kPa
19:00
4.6°C 9°C 6.4°C - 100% 0.11kPa
20:00
4.4°C 8.7°C 6°C - 100% 0.1kPa
21:00
3.8°C 8.4°C 5.6°C - 100% 0.11kPa
22:00
3.2°C 8.1°C 5.1°C - 100% 0.11kPa
23:00
2.5°C 7.8°C 4.7°C - 100% 0.12kPa
Sun, Apr 12 Sunrise 06:52 Sunset 20:30
24:00
2.4°C 7.6°C 4.7°C - 100% 0.13kPa
01:00
2.2°C 7.4°C 4.7°C - 100% 0.14kPa
02:00
2°C 7.1°C 4.7°C - 100% 0.15kPa
03:00
2.5°C 7.2°C 6.1°C - 100% 0.21kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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