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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
Time Window 92% failing
Wind Speed 90% failing

Currently

Real-time conditions
Soil Temperature9725.9°C
Dew Point10.6°C (moderate dew point)
Wind Speed5.3m/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
Wed, Jul 8
07:000%4.4m/s
08:000%4.2m/s
09:000%2.8m/s
10:000%1.9m/s
11:000%2.2m/s
12:000%1.3m/s
13:000%2.5m/s
14:000%4.4m/s
15:000%5.5m/s
16:000%5.3m/s
17:000%5.4m/s
18:000%5.6m/s
19:000%5.6m/s
20:000%4.9m/s
21:000%3.9m/s
22:000%2.8m/s
23:000%2.7m/s
Thu, Jul 9
24:000%3.1m/s
01:000%3.6m/s
02:000%4m/s
03:000%4.7m/s
04:000%4.9m/s
05:000%5.2m/s
06:000%5.4m/s
07:000%5m/s
08:000%4.9m/s
09:000%4.8m/s
10:000%4.2m/s
11:000%4m/s
12:000%4.2m/s
13:000%3.9m/s
14:000%3.2m/s
15:000%2.7m/s
16:000%1.8m/s
17:000%2.2m/s
18:000%2.8m/s
19:000%3.2m/s
20:000%2.8m/s
21:000%2.7m/s
22:000%2.5m/s
23:000%2.1m/s
Fri, Jul 10
24:000%2.1m/s
01:000%2.1m/s
02:000%2m/s
03:000%1.9m/s
04:000%2.2m/s
05:000%2.2m/s
06:000%2.4m/s
07:000%2.5m/s
08:000%2.4m/s
09:000%1.7m/s
10:000%2.2m/s
11:000%2.9m/s
12:000%3.1m/s
13:000%3.4m/s
14:000%2.6m/s
15:000%2.1m/s
16:000%2.3m/s
17:000%1.6m/s
18:000%0.93m/s
19:000%1.2m/s
20:000%1.1m/s
21:000%1.1m/s
22:000%1.1m/s
23:000%1m/s
Sat, Jul 11
24:000%1.6m/s
01:000%2.2m/s
02:000%2.8m/s
03:000%3m/s
04:000%3.1m/s
05:000%3.2m/s
06:000%3.3m/s
07:000%3.5m/s
08:000%3.6m/s
09:000%3.4m/s
10:000%3.2m/s
11:000%3m/s
12:000%2.5m/s
13:000%2m/s
14:000%1.4m/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/Stockholm
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Wed, Jul 8 Sunrise 01:50 Sunset 23:19
16:00
11°C 9726°C 12°C - 100% 0.15kPa
17:00
11°C 9726°C 12°C - 100% 0.14kPa
18:00
11°C 9726°C 12°C - 100% 0.11kPa
19:00
11°C 9726°C 12°C - 100% 0.1kPa
20:00
12°C 9726°C 13°C - 100% 0.1kPa
21:00
12°C 9726°C 13°C - 97% 0.12kPa
22:00
12°C 9726°C 13°C - 100% 0.16kPa
23:00
12°C 9726°C 13°C - 51% 0.16kPa
Thu, Jul 9 Sunrise 01:50 Sunset 23:19
24:00
11°C 9726°C 13°C - 89% 0.14kPa
01:00
12°C 9726°C 13°C - 100% 0.13kPa
02:00
12°C 9726°C 13°C - 96% 0.1kPa
03:00
12°C 9726°C 13°C - 67% 0.1kPa
04:00
12°C 9726°C 13°C - 76% 0.11kPa
05:00
12°C 9726°C 13°C - 100% 0.14kPa
06:00
12°C 9726°C 13°C - 98% 0.15kPa
07:00
12°C 9726°C 14°C - 95% 0.19kPa
08:00
12°C 9726°C 14°C - 91% 0.26kPa
09:00
12°C 9726°C 15°C - 5% 0.36kPa
10:00
11°C 9726°C 16°C - 6% 0.48kPa
11:00
12°C 9726°C 16°C - 7% 0.52kPa
12:00
12°C 9726°C 16°C - 6% 0.48kPa
13:00
12°C 9726°C 16°C - 5% 0.47kPa
14:00
12°C 9726°C 16°C - 13% 0.49kPa
15:00
12°C 9726°C 17°C - 22% 0.54kPa
16:00
11°C 9726°C 17°C - 66% 0.6kPa
17:00
11°C 9726°C 17°C - 64% 0.6kPa
18:00
12°C 9726°C 17°C - 34% 0.56kPa
19:00
12°C 9726°C 16°C - 87% 0.44kPa
20:00
12°C 9726°C 16°C - 80% 0.35kPa
21:00
12°C 9726°C 15°C - 80% 0.3kPa
22:00
12°C 9726°C 15°C - 56% 0.29kPa
23:00
12°C 9726°C 14°C - 96% 0.29kPa
Fri, Jul 10 Sunrise 01:54 Sunset 23:15
24:00
11°C 9726°C 14°C - 98% 0.3kPa
01:00
11°C 9726°C 14°C - 42% 0.31kPa
02:00
11°C 9726°C 14°C - 82% 0.3kPa
03:00
11°C 9726°C 14°C - 63% 0.3kPa
04:00
11°C 9726°C 14°C - 38% 0.33kPa
05:00
11°C 9726°C 15°C - 34% 0.37kPa
06:00
11°C 9726°C 15°C - 71% 0.44kPa
07:00
11°C 9726°C 16°C - 88% 0.5kPa
08:00
11°C 9726°C 16°C - 100% 0.53kPa
09:00
11°C 9726°C 16°C - 100% 0.56kPa
10:00
10°C 9726°C 17°C - 100% 0.63kPa
11:00
11°C 9726°C 17°C - 100% 0.64kPa
12:00
11°C 9726°C 17°C - 86% 0.61kPa
13:00
11°C 9726°C 17°C - 29% 0.59kPa
14:00
11°C 9726°C 17°C - 100% 0.61kPa
15:00
11°C 9726°C 17°C - 100% 0.67kPa
16:00
11°C 9726°C 17°C - 96% 0.67kPa
17:00
11°C 9726°C 18°C - 76% 0.7kPa
18:00
11°C 9726°C 18°C - 9% 0.75kPa
19:00
11°C 9726°C 18°C - 0% 0.73kPa
20:00
12°C 9726°C 17°C - 0% 0.61kPa
21:00
12°C 6489°C 17°C - 33% 0.52kPa
22:00
12°C 3252°C 17°C - 67% 0.45kPa
23:00
13°C 16°C 16°C - 100% 0.37kPa
Sat, Jul 11 Sunrise 02:02 Sunset 23:12
24:00
13°C 16°C 17°C - 100% 0.45kPa
01:00
13°C 16°C 17°C - 100% 0.53kPa
02:00
12°C 16°C 18°C - 100% 0.62kPa
03:00
13°C 16°C 18°C - 86% 0.62kPa
04:00
13°C 16°C 19°C - 73% 0.62kPa
05:00
14°C 16°C 19°C - 59% 0.62kPa
06:00
14°C 16°C 19°C - 73% 0.65kPa
07:00
14°C 17°C 19°C - 86% 0.69kPa
08:00
14°C 17°C 20°C - 100% 0.72kPa
09:00
13°C 17°C 20°C - 92% 0.75kPa
10:00
13°C 17°C 20°C - 83% 0.78kPa
11:00
13°C 17°C 20°C - 75% 0.81kPa
12:00
13°C 17°C 19°C - 78% 0.73kPa
13:00
13°C 17°C 19°C - 81% 0.66kPa
14:00
13°C 17°C 18°C - 84% 0.59kPa
15:00
13°C 17°C 18°C - 89% 0.56kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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