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Rule Morning Frost

Abisko - Morning Frost - Swedish Lapland

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)
Wind Speed 99% failing
Time Window 88% failing
Frost Probability 11% failing

Currently

Real-time conditions
Soil Temperature-3.0°C
Dew Point-10.5°C (low dew point)
Wind Speed2.6m/s (calm conditions)
Cloud Cover1%

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 95 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
Fri, Apr 10
21:0067%2.2m/s
22:0077%2.9m/s
23:0077%3.1m/s
Sat, Apr 11
24:0080%3m/s
01:0080%2.9m/s
02:0082%2.7m/s
03:0086%2.6m/s
04:0071%2.1m/s
05:0071%2m/s
06:0071%2.1m/s
07:0082%1.9m/s
08:0078%1.8m/s
09:0084%1m/s
10:0078%0.64m/s
11:0071%0.71m/s
12:0067%0.63m/s
13:0067%0.43m/s
14:0067%0.44m/s
15:0054%1.1m/s
16:0054%0.93m/s
17:0055%1m/s
18:0069%1m/s
19:0073%1.4m/s
20:0071%2.1m/s
21:0079%2.6m/s
22:0077%2.9m/s
23:0080%2.9m/s
Sun, Apr 12
24:0080%3m/s
01:0080%2.9m/s
02:0084%2.9m/s
03:0084%2.8m/s
04:0084%3m/s
05:0084%3.2m/s
06:0084%3.1m/s
07:0086%2.8m/s
08:0082%2.6m/s
09:0082%2.5m/s
10:0074%2.4m/s
11:0078%2.4m/s
12:0082%2.2m/s
13:0067%1.9m/s
14:0057%1.9m/s
15:0056%2m/s
16:0067%2.1m/s
17:0067%2.4m/s
18:0071%2.6m/s
19:0071%2.8m/s
20:0066%3m/s
21:0073%3.2m/s
22:0076%3m/s
23:0070%3m/s
Mon, Apr 13
24:0070%2.9m/s
01:0071%2.8m/s
02:0071%2.7m/s
03:0071%2.5m/s
04:0071%2.7m/s
05:0071%2.8m/s
06:0071%2.7m/s
07:0084%2.8m/s
08:0082%2.5m/s
09:0082%2m/s
10:0084%1.6m/s
11:0076%1.5m/s
12:0073%1.6m/s
13:0069%1.7m/s
14:0069%1.7m/s
15:0067%2m/s
16:0071%2.1m/s
17:0082%2.1m/s
18:0082%2.3m/s
19:0068%2.7m/s
20:0080%2.9m/s
21:0072%3m/s
22:0080%3m/s
23:0065%3m/s
Tue, Apr 14
24:0067%2.6m/s
01:0067%2.3m/s
02:0067%2.3m/s
03:0067%2.4m/s
04:0067%2.4m/s
05:0067%2.4m/s
06:0067%2.5m/s
07:0060%2.6m/s
08:0057%2.7m/s
09:0056%2.7m/s
10:0056%2.6m/s
11:0056%2.6m/s
12:0053%2.5m/s
13:0059%2.4m/s
14:0067%2.2m/s
15:0063%2m/s
16:0063%1.9m/s
17:0065%1.7m/s
18:0065%1.6m/s
19:0069%1.5m/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
Sat, Apr 11 Sunrise 05:10 Sunset 20:23
21:00
-10°C -3°C -7°C - 1% 0.09kPa
22:00
-12°C -3.1°C -7.4°C - 1% 0.1kPa
23:00
-13°C -3.3°C -7.6°C - 1% 0.11kPa
Sun, Apr 12 Sunrise 05:10 Sunset 20:23
24:00
-14°C -3.5°C -8°C - 0% 0.12kPa
01:00
-14°C -3.6°C -8.4°C - 0% 0.12kPa
02:00
-15°C -3.8°C -8.4°C - 0% 0.13kPa
03:00
-15°C -4°C -8.5°C - 0% 0.13kPa
04:00
-15°C -4.1°C -8.2°C - 3% 0.13kPa
05:00
-15°C -4.3°C -7.8°C - 3% 0.14kPa
06:00
-14°C -4.4°C -7.5°C - 0% 0.15kPa
07:00
-12°C -4.5°C -6.3°C - 0% 0.15kPa
08:00
-10°C -4.6°C -4.3°C - 0% 0.16kPa
09:00
-7.8°C -4.6°C -2.3°C - 5% 0.18kPa
10:00
-6°C -4.6°C -0.53°C - 26% 0.2kPa
11:00
-4.3°C -4.5°C 0.6°C - 15% 0.19kPa
12:00
-2.4°C -4.3°C 0.96°C - 5% 0.14kPa
13:00
-1°C -4.1°C 1.1°C - 11% 0.09kPa
14:00
-0.4°C -3.9°C 1.3°C - 74% 0.07kPa
15:00
-0.7°C -3.8°C 1.3°C - 91% 0.09kPa
16:00
-1.8°C -3.7°C 1.5°C - 100% 0.14kPa
17:00
-3.5°C -3.5°C 0.71°C - 85% 0.17kPa
18:00
-5.3°C -3.4°C -0.99°C - 49% 0.16kPa
19:00
-7.8°C -3.4°C -2.9°C - 54% 0.16kPa
20:00
-11°C -3.4°C -5°C - 73% 0.15kPa
21:00
-12°C -3.6°C -5.8°C - 59% 0.16kPa
22:00
-13°C -3.7°C -5.9°C - 29% 0.17kPa
23:00
-13°C -3.9°C -6.2°C - 72% 0.17kPa
Mon, Apr 13 Sunrise 05:05 Sunset 20:27
24:00
-13°C -4°C -6°C - 78% 0.17kPa
01:00
-13°C -4.2°C -6.1°C - 100% 0.17kPa
02:00
-13°C -4.4°C -5.7°C - 100% 0.17kPa
03:00
-12°C -4.5°C -5.5°C - 99% 0.17kPa
04:00
-12°C -4.6°C -5.6°C - 82% 0.17kPa
05:00
-13°C -4.7°C -6.4°C - 91% 0.16kPa
06:00
-12°C -4.8°C -5.8°C - 98% 0.16kPa
07:00
-11°C -4.9°C -4.5°C - 5% 0.17kPa
08:00
-8.4°C -4.9°C -2.9°C - 5% 0.17kPa
09:00
-6.3°C -4.9°C -1.1°C - 4% 0.18kPa
10:00
-4.3°C -4.7°C 0.47°C - 4% 0.19kPa
11:00
-1.8°C -4.6°C 1.1°C - 5% 0.12kPa
12:00
-0.2°C -4.3°C 1.2°C - 1% 0.06kPa
13:00
0.6°C -4.1°C 1.2°C - 6% 0.03kPa
14:00
0.8°C -3.8°C 1.4°C - 10% 0.03kPa
15:00
0.2°C -3.7°C 1.3°C - 11% 0.05kPa
16:00
-0.9°C -3.5°C 1.3°C - 8% 0.1kPa
17:00
-2.3°C -3.3°C 0.72°C - 5% 0.13kPa
18:00
-4.3°C -3.2°C -0.9°C - 5% 0.13kPa
19:00
-6.4°C -3.2°C -2.6°C - 72% 0.12kPa
20:00
-8.4°C -3.2°C -4.3°C - 5% 0.12kPa
21:00
-9.8°C -3.3°C -5.6°C - 31% 0.11kPa
22:00
-10°C -3.5°C -5.7°C - 9% 0.12kPa
23:00
-10°C -3.7°C -5.9°C - 100% 0.12kPa
Tue, Apr 14 Sunrise 05:01 Sunset 20:31
24:00
-9.4°C -3.9°C -5.1°C - 100% 0.12kPa
01:00
-8.7°C -4.1°C -4.8°C - 100% 0.11kPa
02:00
-8.4°C -4.2°C -4.7°C - 100% 0.11kPa
03:00
-7.1°C -4.1°C -3.3°C - 95% 0.12kPa
04:00
-5.8°C -4.1°C -1.9°C - 90% 0.13kPa
05:00
-4.4°C -4.1°C -0.55°C - 86% 0.15kPa
06:00
-3.9°C -4.1°C -0.51°C - 82% 0.13kPa
07:00
-3.4°C -4°C -0.48°C - 78% 0.11kPa
08:00
-2.8°C -3.9°C -0.44°C - 75% 0.1kPa
09:00
-2.9°C -3.9°C -0.94°C - 83% 0.08kPa
10:00
-3°C -3.8°C -1.5°C - 91% 0.06kPa
11:00
-3.1°C -3.7°C -2°C - 100% 0.04kPa
12:00
-4.3°C -3.7°C -3.4°C - 69% 0.03kPa
13:00
-5.4°C -3.6°C -4.8°C - 39% 0.02kPa
14:00
-6.6°C -3.6°C -6.2°C - 8% 0.01kPa
15:00
-7.6°C -3.7°C -7.1°C - 14% 0.02kPa
16:00
-8.6°C -3.7°C -8°C - 19% 0.02kPa
17:00
-9.6°C -3.8°C -8.9°C - 24% 0.02kPa
18:00
-10°C -3.8°C -9.3°C - 19% 0.02kPa
19:00
-11°C -3.9°C -9.7°C - 14% 0.02kPa
20:00
-11°C -4°C -10°C - 9% 0.02kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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