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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)
Time Window 88% failing
Wind Speed 83% failing
Frost Probability 76% failing

Currently

Real-time conditions
Soil Temperature-1.2°C
Dew Point0.8°C (low dew point)
Wind Speed6.1m/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 92 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
Thu, Mar 12
05:0048%3.2m/s
06:0048%3.4m/s
07:0048%3.4m/s
08:0048%3.9m/s
09:0048%3.7m/s
10:0048%3.7m/s
11:0048%3.7m/s
12:0048%3.2m/s
13:0048%3.6m/s
14:0061%2.7m/s
15:0052%3m/s
16:0048%3.3m/s
17:0048%3.8m/s
18:0050%4.6m/s
19:0050%5.1m/s
20:0052%3.9m/s
21:0046%4.4m/s
22:0046%4.6m/s
23:0046%4.7m/s
Fri, Mar 13
24:0046%5.4m/s
01:0046%5.2m/s
02:0044%5.9m/s
03:0044%6.1m/s
04:0044%7m/s
05:0048%8.2m/s
06:0048%8.4m/s
07:0048%8.4m/s
08:0048%8.9m/s
09:0048%8.7m/s
10:0048%8.3m/s
11:0048%7.1m/s
12:0044%6.4m/s
13:0046%5.5m/s
14:0046%5.3m/s
15:0046%5.3m/s
16:0044%5.7m/s
17:0044%5.9m/s
18:0044%6.4m/s
19:0044%7.1m/s
20:0044%7.8m/s
21:0048%7.6m/s
22:0048%8.4m/s
23:0063%8.9m/s
Sat, Mar 14
24:0074%9.5m/s
01:0070%9.3m/s
02:0074%9.1m/s
03:0074%8.2m/s
04:0066%7.7m/s
05:0063%7m/s
06:0063%6.4m/s
07:0059%5.8m/s
08:0062%4.6m/s
09:0063%3.8m/s
10:0056%3.8m/s
11:0063%3.5m/s
12:0064%3.7m/s
13:0064%3.9m/s
14:0064%4.1m/s
15:0062%4.2m/s
16:0052%4m/s
17:0052%3.7m/s
18:0052%3.5m/s
19:0050%4.5m/s
20:0052%4m/s
21:0052%3.1m/s
22:0054%2.6m/s
23:0050%2.4m/s
Sun, Mar 15
24:0050%2.7m/s
01:0048%2.9m/s
02:0048%3.2m/s
03:0048%3.3m/s
04:0052%3.3m/s
05:0052%3.3m/s
06:0052%3m/s
07:0052%2.9m/s
08:0050%2.4m/s
09:0050%1.9m/s
10:0052%1.4m/s
11:0052%1.2m/s
12:0052%0.98m/s
13:0054%0.76m/s
14:0054%0.74m/s
15:0054%0.72m/s
16:0054%0.7m/s
17:0052%0.84m/s
18:0052%0.98m/s
19:0052%1.1m/s
20:0052%1.3m/s
21:0056%1.4m/s
22:0059%1.6m/s
23:0065%1.8m/s
Mon, Mar 16
24:0065%1.9m/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
Fri, Mar 13 Sunrise 06:05 Sunset 17:31
03:00
0.8°C -1.2°C 1.3°C - 100% 0.02kPa
04:00
0.6°C -1.2°C 1.5°C - 100% 0.04kPa
05:00
0.4°C -1.1°C 1.4°C - 100% 0.05kPa
06:00
0.8°C -1.1°C 2.1°C - 100% 0.07kPa
07:00
1°C -1.1°C 2.1°C - 100% 0.05kPa
08:00
1°C -1.1°C 2.5°C - 100% 0.08kPa
09:00
1.3°C -1.1°C 2.8°C - 100% 0.07kPa
10:00
1.5°C -1°C 3.1°C - 98% 0.08kPa
11:00
1.7°C -1°C 3°C - 100% 0.07kPa
12:00
1.8°C -0.96°C 2.8°C - 100% 0.05kPa
13:00
2.1°C -0.91°C 2.4°C - 100% 0.01kPa
14:00
1.3°C -0.85°C 1.6°C - 100% 0.02kPa
15:00
0.8°C -0.81°C 1.2°C - 100% 0.02kPa
16:00
0.9°C -0.79°C 1.2°C - 100% 0.02kPa
17:00
1.2°C -0.79°C 1.5°C - 100% 0.02kPa
18:00
1.6°C -0.78°C 2°C - 100% 0.02kPa
19:00
1.7°C -0.76°C 2.1°C - 100% 0.02kPa
20:00
1.7°C -0.74°C 2.2°C - 100% 0.03kPa
21:00
1.1°C -0.71°C 2.1°C - 100% 0.05kPa
22:00
0.7°C -0.69°C 2.1°C - 100% 0.07kPa
23:00
-0.8°C -0.67°C 2.4°C - 51% 0.15kPa
Sat, Mar 14 Sunrise 06:05 Sunset 17:31
24:00
-2.6°C -0.65°C 1.6°C - 5% 0.18kPa
01:00
-3.2°C -0.65°C 0.82°C - 21% 0.17kPa
02:00
-3.3°C -0.65°C 0.4°C - 5% 0.15kPa
03:00
-3.4°C -0.65°C -0.05°C - 5% 0.13kPa
04:00
-3.3°C -0.65°C -0.51°C - 5% 0.11kPa
05:00
-3.1°C -0.65°C -0.86°C - 5% 0.09kPa
06:00
-3°C -0.67°C -0.96°C - 6% 0.08kPa
07:00
-3.1°C -0.73°C -0.67°C - 20% 0.1kPa
08:00
-3.3°C -0.81°C -0.21°C - 64% 0.12kPa
09:00
-3°C -0.82°C 0.38°C - 85% 0.14kPa
10:00
-2.2°C -0.81°C 0.76°C - 73% 0.13kPa
11:00
-1.8°C -0.81°C 1.4°C - 100% 0.14kPa
12:00
-1.7°C -0.81°C 1.6°C - 65% 0.14kPa
13:00
-1.6°C -0.85°C 1.6°C - 70% 0.14kPa
14:00
-1.7°C -0.75°C 1.5°C - 70% 0.14kPa
15:00
-1.7°C -0.65°C 1.2°C - 32% 0.13kPa
16:00
-1.7°C -0.63°C 0.59°C - 100% 0.1kPa
17:00
-1.7°C -0.62°C -0.26°C - 100% 0.06kPa
18:00
-1.9°C -0.62°C -0.78°C - 100% 0.05kPa
19:00
-2.2°C -0.62°C -0.03°C - 100% 0.09kPa
20:00
-2.4°C -0.62°C -0.05°C - 100% 0.09kPa
21:00
-2.2°C -0.62°C -0.61°C - 100% 0.07kPa
22:00
-2.3°C -0.62°C -1.3°C - 100% 0.04kPa
23:00
-2.3°C -0.64°C -1.5°C - 100% 0.03kPa
Sun, Mar 15 Sunrise 06:02 Sunset 17:34
24:00
-2.2°C -0.68°C -1.6°C - 100% 0.02kPa
01:00
-2.2°C -0.73°C -1.6°C - 100% 0.02kPa
02:00
-2.2°C -0.83°C -1.5°C - 100% 0.03kPa
03:00
-2.4°C -0.89°C -1.5°C - 100% 0.03kPa
04:00
-2.4°C -0.94°C -1.3°C - 100% 0.05kPa
05:00
-2.1°C -0.98°C -1°C - 100% 0.04kPa
06:00
-2.1°C -1°C -0.82°C - 100% 0.05kPa
07:00
-1.8°C -1°C -0.56°C - 100% 0.05kPa
08:00
-1.2°C -0.93°C -0.27°C - 100% 0.04kPa
09:00
-0.7°C -0.84°C 0.02°C - 100% 0.03kPa
10:00
-0.2°C -0.75°C 0.32°C - 100% 0.02kPa
11:00
-0.3°C -0.72°C 0.002°C - 100% 0.02kPa
12:00
-0.5°C -0.68°C -0.31°C - 100% 0.01kPa
13:00
-0.7°C -0.65°C -0.63°C - 100% 0kPa
14:00
-0.9°C -0.65°C -0.82°C - 100% 0kPa
15:00
-1.1°C -0.65°C -1°C - 100% 0kPa
16:00
-1.3°C -0.65°C -1.2°C - 100% 0.01kPa
17:00
-1.6°C -0.67°C -1.5°C - 100% 0.01kPa
18:00
-1.9°C -0.68°C -1.8°C - 100% 0.01kPa
19:00
-2.3°C -0.7°C -2.1°C - 100% 0.01kPa
20:00
-2.4°C -0.77°C -1.5°C - 100% 0.04kPa
21:00
-2.7°C -0.85°C -0.81°C - 100% 0.08kPa
22:00
-3°C -0.92°C -0.17°C - 100% 0.11kPa
23:00
-3.2°C -0.94°C -0.09°C - 100% 0.13kPa
Mon, Mar 16 Sunrise 05:58 Sunset 17:37
24:00
-3.4°C -0.96°C -0.02°C - 100% 0.14kPa
01:00
-3.6°C -0.98°C 0.06°C - 100% 0.15kPa
02:00
-3.4°C -0.97°C 0.42°C - 77% 0.16kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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