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Rule Morning Frost

Gällivare - Morning Frost - Swedish Lapland

Gällivare, Norrbotten, Sweden

Frost crystals on calm, cold mornings near sunrise

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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 79% failing

Currently

Real-time conditions
Soil Temperature8.9°C
Dew Point6.9°C (moderate dew point)
Wind Speed2.2m/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 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%4.1m/s
07:000%4.4m/s
08:000%4.3m/s
09:000%3.6m/s
10:000%3.4m/s
11:000%3.2m/s
12:000%3.2m/s
13:000%3.2m/s
14:000%2.6m/s
15:000%2.2m/s
16:000%1.5m/s
17:000%1.9m/s
18:000%3.3m/s
19:000%3.6m/s
20:000%4m/s
21:000%2.9m/s
22:000%2.1m/s
23:000%1.3m/s
Mon, May 25
24:000%1.4m/s
01:000%1.4m/s
02:001.9%2.1m/s
03:001.9%2.4m/s
04:002.5%2.9m/s
05:002.5%3.4m/s
06:003%4.1m/s
07:003%3.7m/s
08:003.2%4.1m/s
09:003%4.5m/s
10:003%4.8m/s
11:002.8%4.4m/s
12:003.4%4m/s
13:000%4.2m/s
14:000%4.4m/s
15:000%3.8m/s
16:000%3.2m/s
17:000%3.6m/s
18:000%3.4m/s
19:000%2.5m/s
20:000%2.5m/s
21:000%2.2m/s
22:000%1.6m/s
23:002.2%0.83m/s
Tue, May 26
24:002.7%0.49m/s
01:003.1%0.44m/s
02:003.1%0.43m/s
03:0036%0.64m/s
04:0036%0.61m/s
05:0039%0.72m/s
06:0050%1m/s
07:0046%1.3m/s
08:004.5%1.5m/s
09:003.7%1.4m/s
10:003.6%1.5m/s
11:003.1%1.7m/s
12:000%1.6m/s
13:000%1.6m/s
14:000%2.1m/s
15:000%2.2m/s
16:000%2.2m/s
17:000%2.3m/s
18:000%2.4m/s
19:000%2.7m/s
20:000%2.2m/s
21:000%2.2m/s
22:004.3%2.1m/s
23:005%2.1m/s
Wed, May 27
24:004.3%2.7m/s
01:003.3%3.3m/s
02:002.7%3.9m/s
03:002.7%4m/s
04:002.7%4.2m/s
05:002.5%4.3m/s
06:000%4.4m/s
07:000%4.5m/s
08:000%4.6m/s
09:000%4.4m/s
10:000%4.1m/s
11:000%3.9m/s
12:000%3.9m/s
13:000%3.9m/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
Sun, May 24 Sunrise 01:45 Sunset 23:16
15:00
6.9°C 8.9°C 8.6°C - 100% 0.12kPa
16:00
7°C 8.8°C 8.7°C - 79% 0.13kPa
17:00
6.9°C 9.1°C 11°C - 82% 0.27kPa
18:00
6.7°C 9.2°C 11°C - 98% 0.33kPa
19:00
6.1°C 9.3°C 10°C - 100% 0.29kPa
20:00
5.7°C 9.2°C 8.9°C - 100% 0.22kPa
21:00
5.9°C 9°C 8°C - 100% 0.15kPa
22:00
5.9°C 8.7°C 7.6°C - 100% 0.12kPa
23:00
5.9°C 8.5°C 7.4°C - 100% 0.11kPa
Mon, May 25 Sunrise 01:45 Sunset 23:16
24:00
5.4°C 8.3°C 7.4°C - 100% 0.14kPa
01:00
5.2°C 8.1°C 7.7°C - 99% 0.17kPa
02:00
5°C 7.8°C 7°C - 99% 0.13kPa
03:00
4.3°C 7.6°C 6.7°C - 100% 0.15kPa
04:00
3.6°C 7.4°C 6.9°C - 99% 0.2kPa
05:00
3.7°C 7.2°C 6.8°C - 100% 0.19kPa
06:00
3°C 7.2°C 7.2°C - 100% 0.26kPa
07:00
2.9°C 7.2°C 8°C - 98% 0.32kPa
08:00
2.2°C 7.3°C 8.9°C - 100% 0.42kPa
09:00
1.7°C 7.6°C 9.4°C - 100% 0.49kPa
10:00
2.1°C 7.9°C 9.6°C - 100% 0.48kPa
11:00
2.8°C 7.9°C 8.7°C - 100% 0.38kPa
12:00
2.1°C 7.9°C 8.4°C - 99% 0.39kPa
13:00
-0.5°C 8.1°C 9.5°C - 96% 0.59kPa
14:00
-1.2°C 8.6°C 11°C - 100% 0.75kPa
15:00
-0.7°C 8.8°C 10°C - 100% 0.68kPa
16:00
-0.1°C 9°C 10°C - 95% 0.62kPa
17:00
0.4°C 9.3°C 9.9°C - 99% 0.58kPa
18:00
0.6°C 9.2°C 8.5°C - 96% 0.47kPa
19:00
0.5°C 9.1°C 8.5°C - 96% 0.48kPa
20:00
0.6°C 9°C 8°C - 74% 0.44kPa
21:00
1.3°C 8.8°C 7°C - 60% 0.33kPa
22:00
1.9°C 8.4°C 5.6°C - 82% 0.21kPa
23:00
2°C 7.9°C 4.5°C - 77% 0.14kPa
Tue, May 26 Sunrise 01:51 Sunset 23:22
24:00
1.9°C 7.4°C 4°C - 47% 0.11kPa
01:00
1.8°C 6.8°C 3.4°C - 15% 0.08kPa
02:00
1.6°C 6.3°C 2.9°C - 11% 0.07kPa
03:00
1.5°C 5.8°C 2.8°C - 5% 0.06kPa
04:00
1.6°C 5.5°C 3.3°C - 4% 0.09kPa
05:00
1.7°C 5.4°C 4.4°C - 4% 0.14kPa
06:00
1.8°C 5.5°C 5.5°C - 5% 0.21kPa
07:00
1.6°C 5.8°C 6.5°C - 24% 0.28kPa
08:00
1.1°C 6.2°C 7.5°C - 36% 0.38kPa
09:00
0.4°C 6.7°C 8.6°C - 61% 0.49kPa
10:00
-0.2°C 7.4°C 9.3°C - 83% 0.57kPa
11:00
-0.7°C 7.9°C 9.7°C - 96% 0.62kPa
12:00
-0.9°C 8.2°C 9.7°C - 99% 0.63kPa
13:00
-0.8°C 8.6°C 10°C - 98% 0.65kPa
14:00
-0.7°C 9°C 10°C - 92% 0.67kPa
15:00
-0.4°C 9.3°C 11°C - 96% 0.68kPa
16:00
-0.5°C 9.4°C 10°C - 92% 0.66kPa
17:00
-1°C 9.6°C 10°C - 94% 0.69kPa
18:00
-1.6°C 9.7°C 11°C - 97% 0.72kPa
19:00
-1.7°C 9.7°C 10°C - 96% 0.7kPa
20:00
-0.7°C 9.6°C 9.7°C - 89% 0.62kPa
21:00
-0.8°C 8.4°C 8.1°C - 62% 0.5kPa
22:00
-1.1°C 7.2°C 6.4°C - 36% 0.4kPa
23:00
-1.6°C 6.1°C 4.7°C - 9% 0.31kPa
Wed, May 27 Sunrise 01:45 Sunset 23:29
24:00
-2.1°C 6.2°C 5.9°C - 39% 0.4kPa
01:00
-2.8°C 6.3°C 7°C - 69% 0.5kPa
02:00
-3.8°C 6.5°C 8.1°C - 99% 0.61kPa
03:00
-3°C 7°C 9°C - 96% 0.66kPa
04:00
-2.3°C 7.5°C 9.9°C - 93% 0.7kPa
05:00
-1.6°C 8°C 11°C - 89% 0.75kPa
06:00
-1.3°C 8.4°C 11°C - 92% 0.77kPa
07:00
-1.1°C 8.8°C 12°C - 94% 0.8kPa
08:00
-0.8°C 9.2°C 12°C - 97% 0.82kPa
09:00
-0.9°C 9.4°C 12°C - 98% 0.82kPa
10:00
-0.9°C 9.6°C 12°C - 99% 0.81kPa
11:00
-1°C 9.8°C 12°C - 99% 0.81kPa
12:00
0°C 9.8°C 11°C - 91% 0.7kPa
13:00
0.8°C 9.8°C 10°C - 83% 0.61kPa
14:00
1.5°C 9.8°C 9.7°C - 74% 0.52kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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