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Rule Morning Frost

Luleå - Morning Frost - Swedish Lapland

Luleå, 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
Wind Speed 93% failing
Time Window 92% failing

Currently

Real-time conditions
Soil Temperature9725.9°C
Dew Point7.8°C (moderate dew point)
Wind Speed6.4m/s (moderate winds)
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 80 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
Sun, May 24
06:000%2.9m/s
07:000%2m/s
08:000%1.5m/s
09:000%1.4m/s
10:000%2.7m/s
11:000%4.7m/s
12:000%5.2m/s
13:000%5.5m/s
14:000%7m/s
15:000%6.4m/s
16:000%5.7m/s
17:000%4.6m/s
18:000%5m/s
19:000%4.4m/s
20:000%3.7m/s
21:000%3.6m/s
22:000%4.2m/s
23:000%4.9m/s
Mon, May 25
24:000%5.3m/s
01:000%6.3m/s
02:000%6.3m/s
03:000%5.9m/s
04:000%5.2m/s
05:000%4.7m/s
06:000%5.2m/s
07:000%6.3m/s
08:000%6.7m/s
09:000%6.8m/s
10:000%4.7m/s
11:000%3.3m/s
12:000%4.1m/s
13:000%4.1m/s
14:000%4.6m/s
15:000%4.2m/s
16:000%4m/s
17:000%3.6m/s
18:000%3.6m/s
19:000%2.7m/s
20:000%2m/s
21:000%0.82m/s
22:000%0.18m/s
23:000%1m/s
Tue, May 26
24:000%1.5m/s
01:000%2.3m/s
02:000%2.4m/s
03:000%2.7m/s
04:000%2.8m/s
05:000%2.7m/s
06:000%2.6m/s
07:000%2.6m/s
08:000%2.2m/s
09:000%1.4m/s
10:000%1.6m/s
11:000%2.8m/s
12:000%3.7m/s
13:000%4m/s
14:000%4.1m/s
15:000%3.9m/s
16:000%3.8m/s
17:000%3.4m/s
18:000%3.3m/s
19:000%3.3m/s
20:000%2.9m/s
21:000%3.2m/s
22:000%3.6m/s
23:003%3.9m/s
Wed, May 27
24:003.2%4.4m/s
01:003%4.9m/s
02:003%5.5m/s
03:002.3%5.6m/s
04:000%5.8m/s
05:000%5.9m/s
06:000%5.8m/s
07:000%5.7m/s
08:000%5.6m/s
09:000%5.5m/s
10:000%5.5m/s
11:000%5.4m/s
12:000%4.8m/s
13:000%4.3m/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
Sun, May 24 Sunrise 02:26 Sunset 22:33
15:00
7.8°C 9726°C 12°C - 100% 0.32kPa
16:00
7.2°C 9726°C 12°C - 36% 0.39kPa
17:00
7°C 9726°C 12°C - 86% 0.37kPa
18:00
7.8°C 9726°C 12°C - 100% 0.3kPa
19:00
7.6°C 9726°C 11°C - 100% 0.23kPa
20:00
7.6°C 9726°C 10°C - 99% 0.18kPa
21:00
7.3°C 9726°C 9.9°C - 84% 0.2kPa
22:00
6.6°C 9726°C 9.7°C - 90% 0.23kPa
23:00
6.4°C 9726°C 9.6°C - 100% 0.23kPa
Mon, May 25 Sunrise 02:26 Sunset 22:33
24:00
6.4°C 9726°C 9.3°C - 100% 0.21kPa
01:00
5.2°C 9726°C 8.9°C - 100% 0.26kPa
02:00
3.7°C 9726°C 8.3°C - 100% 0.3kPa
03:00
3.7°C 9726°C 8.1°C - 42% 0.28kPa
04:00
3.8°C 9726°C 7.4°C - 56% 0.22kPa
05:00
4.3°C 9726°C 7.5°C - 92% 0.21kPa
06:00
4.9°C 9726°C 8.4°C - 98% 0.24kPa
07:00
4.1°C 9726°C 9.4°C - 100% 0.36kPa
08:00
2.9°C 9726°C 9.9°C - 88% 0.46kPa
09:00
2.6°C 9726°C 11°C - 84% 0.54kPa
10:00
3.1°C 9726°C 9.9°C - 100% 0.45kPa
11:00
3.4°C 9726°C 8.7°C - 100% 0.35kPa
12:00
4.6°C 9726°C 7.1°C - 88% 0.16kPa
13:00
4.7°C 9726°C 7.1°C - 73% 0.15kPa
14:00
4.7°C 9726°C 6.8°C - 86% 0.13kPa
15:00
4.9°C 9726°C 7.5°C - 98% 0.17kPa
16:00
4.6°C 9726°C 7.8°C - 76% 0.21kPa
17:00
4.8°C 9726°C 7.5°C - 82% 0.17kPa
18:00
5.1°C 9726°C 6.9°C - 84% 0.12kPa
19:00
5.2°C 9726°C 7.4°C - 86% 0.15kPa
20:00
5°C 9726°C 7.1°C - 98% 0.13kPa
21:00
5.1°C 9726°C 6.7°C - 97% 0.1kPa
22:00
5.1°C 9726°C 6.2°C - 98% 0.07kPa
23:00
5.2°C 9726°C 6.2°C - 97% 0.07kPa
Tue, May 26 Sunrise 02:22 Sunset 22:37
24:00
5.2°C 9726°C 6.5°C - 87% 0.08kPa
01:00
4.9°C 9726°C 6°C - 91% 0.07kPa
02:00
4.8°C 9726°C 5.6°C - 58% 0.05kPa
03:00
4.5°C 9726°C 5.4°C - 6% 0.05kPa
04:00
4.4°C 9726°C 5.4°C - 6% 0.06kPa
05:00
4.4°C 9726°C 5.6°C - 6% 0.08kPa
06:00
4.1°C 9726°C 6°C - 6% 0.12kPa
07:00
3.7°C 9726°C 6.3°C - 6% 0.16kPa
08:00
3.6°C 9726°C 6.7°C - 2% 0.19kPa
09:00
3.5°C 9726°C 7°C - 0% 0.22kPa
10:00
3.5°C 9726°C 7.3°C - 2% 0.24kPa
11:00
3.3°C 9726°C 7.2°C - 6% 0.24kPa
12:00
3.3°C 9726°C 7.4°C - 23% 0.25kPa
13:00
3.3°C 9726°C 7.2°C - 32% 0.24kPa
14:00
3.4°C 9726°C 7.1°C - 78% 0.23kPa
15:00
3.6°C 9726°C 7.4°C - 84% 0.24kPa
16:00
3.5°C 9726°C 7.2°C - 81% 0.23kPa
17:00
3.6°C 9726°C 7°C - 100% 0.21kPa
18:00
3.6°C 9726°C 6.7°C - 100% 0.19kPa
19:00
3.6°C 9726°C 6.5°C - 97% 0.18kPa
20:00
3.7°C 9726°C 6.4°C - 64% 0.17kPa
21:00
2.6°C 6486°C 6.3°C - 76% 0.22kPa
22:00
1.4°C 3247°C 6.1°C - 88% 0.27kPa
23:00
0.2°C 7.3°C 6°C - 100% 0.31kPa
Wed, May 27 Sunrise 02:19 Sunset 22:40
24:00
0.1°C 7.4°C 7°C - 100% 0.38kPa
01:00
0°C 7.4°C 8°C - 99% 0.46kPa
02:00
-0.2°C 7.5°C 9°C - 99% 0.54kPa
03:00
-0.6°C 7.8°C 9.8°C - 99% 0.62kPa
04:00
-1.1°C 8.2°C 11°C - 99% 0.71kPa
05:00
-1.7°C 8.5°C 11°C - 99% 0.8kPa
06:00
-1.1°C 8.9°C 12°C - 94% 0.84kPa
07:00
-0.5°C 9.3°C 13°C - 89% 0.89kPa
08:00
0.2°C 9.8°C 14°C - 84% 0.93kPa
09:00
0.2°C 10°C 14°C - 70% 0.95kPa
10:00
0.3°C 11°C 14°C - 55% 0.98kPa
11:00
0.4°C 11°C 14°C - 40% 1kPa
12:00
0.9°C 11°C 14°C - 28% 0.91kPa
13:00
1.4°C 11°C 13°C - 17% 0.82kPa
14:00
1.8°C 11°C 12°C - 5% 0.74kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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