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Rule Morning Frost

Björkliden - Morning Frost - Swedish Lapland

Björkliden, Norrbotten, Sweden

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 92% failing
Wind Speed 88% failing

Currently

Real-time conditions
Soil Temperature10.2°C
Dew Point7.4°C (moderate dew point)
Wind Speed2.6m/s (calm conditions)
Cloud Cover100%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Stockholm

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 tracks the extreme arctic frost conditions that transform Swedish Lapland into a frozen wonderland. We combine temperature, humidity, wind, and snow data to predict optimal conditions for photographing the region's spectacular frost phenomena.

Swedish Lapland experiences frost conditions as extreme as neighboring Finland, with temperatures regularly dropping below -25°C from December through February. The region's vast frozen lakes, frost-covered birch forests, and ice formations create otherworldly winter landscapes. The famous Abisko microclimate means frost conditions often coincide with clear skies—ideal for photography.

What makes Swedish Lapland special for frost photography:

  • Frozen Torneträsk - Sweden's sixth largest lake freezes solid, creating vast ice plains
  • Abisko clarity - The Blue Hole microclimate provides clear skies for photographing frost
  • Birch forest frost - Frost-covered mountain birch create delicate white forests
  • Ice architecture - The ICEHOTEL and frozen Torne River offer unique frost subjects

Lake Torneträsk freezes completely by midwinter, creating an otherworldly frozen seascape stretching to the horizon. The pressure ridges and ice formations along the shore provide dramatic foreground elements. The mountain birch forests around Abisko become ethereal frost galleries—each delicate branch outlined in white against blue arctic twilight. The Torne River near Jukkasjärvi provides ice harvesting opportunities to photograph—massive blocks cut for the ICEHOTEL construction. At Abisko, the microclimate advantage means you can photograph frost phenomena under clear skies more reliably than elsewhere in Lapland. The combination of extreme cold and the region's unique light makes for spectacular blue hour frost photography.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 79 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Stockholm
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Wed, Jul 8
07:001.9%2.7m/s
08:003%2.9m/s
09:000%3.1m/s
10:000%3.2m/s
11:000%2.9m/s
12:000%3.2m/s
13:000%3.2m/s
14:000%0.58m/s
15:000%1.7m/s
16:000%2.6m/s
17:000%1.7m/s
18:000%1.7m/s
19:000%2.1m/s
20:000%2.9m/s
21:000%2.6m/s
22:000%3.3m/s
23:000%3.5m/s
Thu, Jul 9
24:000%2.8m/s
01:000%2.4m/s
02:000%2.2m/s
03:000%2.1m/s
04:000%2.3m/s
05:000%2.1m/s
06:000%2.3m/s
07:000%2.2m/s
08:000%2.2m/s
09:000%2.4m/s
10:000%2m/s
11:000%2m/s
12:000%1.8m/s
13:000%1.4m/s
14:000%0.84m/s
15:000%0.82m/s
16:000%0.96m/s
17:000%2m/s
18:000%3m/s
19:000%2.8m/s
20:000%2.4m/s
21:000%1.9m/s
22:000%1.9m/s
23:000%1.7m/s
Fri, Jul 10
24:000%1.7m/s
01:000%1.5m/s
02:000%1.6m/s
03:000%1.8m/s
04:000%1.8m/s
05:000%1.4m/s
06:000%1.8m/s
07:000%2.3m/s
08:000%2.7m/s
09:000%2.8m/s
10:000%2.2m/s
11:000%2m/s
12:000%1.9m/s
13:000%1.8m/s
14:000%1.8m/s
15:000%1.9m/s
16:000%2.1m/s
17:000%3.4m/s
18:000%3.7m/s
19:000%2.3m/s
20:000%2.1m/s
21:000%1.7m/s
22:000%1.3m/s
23:000%0.87m/s
Sat, Jul 11
24:000%1.3m/s
01:000%1.7m/s
02:000%2.1m/s
03:000%2m/s
04:000%2m/s
05:000%1.9m/s
06:000%2m/s
07:000%2.1m/s
08:000%2.2m/s
09:000%2.8m/s
10:000%3.4m/s
11:000%4m/s
12:000%3.5m/s
13:000%2.9m/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/Stockholm
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Wed, Jul 8 Sunrise 02:03 Sunset 23:20
16:00
7.4°C 10°C 14°C - 100% 0.52kPa
17:00
8.1°C 10°C 13°C - 100% 0.43kPa
18:00
8.4°C 10°C 12°C - 100% 0.33kPa
19:00
8°C 10°C 13°C - 100% 0.38kPa
20:00
7.6°C 10°C 13°C - 100% 0.45kPa
21:00
7°C 10°C 13°C - 100% 0.53kPa
22:00
7°C 11°C 14°C - 100% 0.55kPa
23:00
7.1°C 11°C 13°C - 100% 0.53kPa
Thu, Jul 9 Sunrise 02:03 Sunset 23:20
24:00
7.3°C 11°C 13°C - 71% 0.46kPa
01:00
7.3°C 11°C 12°C - 100% 0.39kPa
02:00
7.1°C 11°C 12°C - 100% 0.36kPa
03:00
7°C 11°C 11°C - 100% 0.35kPa
04:00
7.1°C 11°C 11°C - 85% 0.35kPa
05:00
7.4°C 11°C 12°C - 63% 0.37kPa
06:00
7.5°C 11°C 13°C - 93% 0.46kPa
07:00
7.2°C 11°C 13°C - 100% 0.52kPa
08:00
7.1°C 11°C 14°C - 97% 0.58kPa
09:00
7.4°C 11°C 15°C - 72% 0.67kPa
10:00
7.7°C 11°C 17°C - 5% 0.87kPa
11:00
7.8°C 12°C 19°C - 5% 1.1kPa
12:00
7.9°C 12°C 20°C - 20% 1.3kPa
13:00
8.2°C 13°C 21°C - 67% 1.4kPa
14:00
8.1°C 13°C 21°C - 100% 1.5kPa
15:00
7.9°C 14°C 20°C - 100% 1.3kPa
16:00
10°C 14°C 19°C - 100% 0.92kPa
17:00
11°C 14°C 18°C - 100% 0.78kPa
18:00
12°C 14°C 18°C - 98% 0.73kPa
19:00
12°C 14°C 17°C - 100% 0.62kPa
20:00
12°C 14°C 16°C - 100% 0.48kPa
21:00
12°C 14°C 15°C - 98% 0.38kPa
22:00
11°C 14°C 15°C - 98% 0.35kPa
23:00
11°C 14°C 14°C - 28% 0.3kPa
Fri, Jul 10 Sunrise 02:06 Sunset 23:17
24:00
10°C 14°C 12°C - 59% 0.18kPa
01:00
9.6°C 13°C 12°C - 100% 0.17kPa
02:00
9.6°C 13°C 12°C - 100% 0.17kPa
03:00
9.9°C 13°C 12°C - 100% 0.17kPa
04:00
10°C 13°C 12°C - 99% 0.17kPa
05:00
11°C 13°C 14°C - 100% 0.25kPa
06:00
11°C 13°C 15°C - 59% 0.41kPa
07:00
11°C 13°C 17°C - 34% 0.61kPa
08:00
11°C 13°C 18°C - 53% 0.82kPa
09:00
11°C 14°C 20°C - 61% 1kPa
10:00
10°C 14°C 21°C - 50% 1.2kPa
11:00
9.6°C 14°C 22°C - 54% 1.5kPa
12:00
9.4°C 15°C 23°C - 68% 1.6kPa
13:00
9.3°C 15°C 23°C - 71% 1.7kPa
14:00
9.5°C 16°C 24°C - 100% 1.8kPa
15:00
9.4°C 16°C 24°C - 97% 1.8kPa
16:00
9.6°C 16°C 24°C - 100% 1.7kPa
17:00
10°C 17°C 23°C - 100% 1.5kPa
18:00
11°C 17°C 21°C - 100% 1.1kPa
19:00
11°C 17°C 18°C - 100% 0.74kPa
20:00
12°C 17°C 18°C - 90% 0.65kPa
21:00
11°C 16°C 17°C - 94% 0.59kPa
22:00
11°C 16°C 16°C - 97% 0.53kPa
23:00
9.9°C 15°C 15°C - 100% 0.48kPa
Sat, Jul 11 Sunrise 02:10 Sunset 23:14
24:00
10°C 15°C 16°C - 100% 0.59kPa
01:00
11°C 15°C 17°C - 100% 0.72kPa
02:00
11°C 15°C 19°C - 100% 0.86kPa
03:00
11°C 15°C 20°C - 99% 1kPa
04:00
10°C 15°C 21°C - 98% 1.2kPa
05:00
10°C 16°C 22°C - 96% 1.4kPa
06:00
9.9°C 16°C 23°C - 96% 1.5kPa
07:00
9.7°C 16°C 23°C - 96% 1.7kPa
08:00
9.5°C 17°C 24°C - 95% 1.8kPa
09:00
11°C 17°C 24°C - 92% 1.6kPa
10:00
12°C 17°C 23°C - 88% 1.4kPa
11:00
13°C 18°C 22°C - 85% 1.2kPa
12:00
13°C 18°C 22°C - 90% 1.1kPa
13:00
13°C 18°C 21°C - 95% 0.99kPa
14:00
13°C 18°C 20°C - 100% 0.89kPa
15:00
12°C 18°C 19°C - 100% 0.8kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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