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Rule Morning Frost

Morning Frost Forecast for Utsjoki, Finnish Lapland

Utsjoki, Lapland, Finland

The broad Teno River follows Finland’s northern border through steep, birch-covered fells around Utsjoki. Sparse settlement and the valley’s east–west reaches leave dark horizons, while river bends provide foregrounds for aurora and low Arctic light.

Currently

Real-time conditions
Soil Temperature8.5°C
Dew Point4.0°C (low dew point)
Wind Speed1.5m/s (calm conditions)
Cloud Cover12%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (95-hour forecast)

  • Frost Probability100% of hours
  • Wind Speed90% of hours
  • Time Window88% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across Finnish Lapland. The requirements and hourly values below show how those signals apply at Utsjoki.

Explore Morning Frost conditions across Finnish Lapland →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Utsjoki during the last 365 days.

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
4
recorded matching windows · 65% average confidence

Only 4 completed matches are recorded in the last 365 days—insufficient history to identify a reliable typical start time or month.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

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/Helsinki
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Sun, Aug 23
05:000%2.4m/s
06:000%2.5m/s
07:000%2.4m/s
08:000%2.7m/s
09:000%3.1m/s
10:000%3.3m/s
11:000%3.1m/s
12:000%3.1m/s
13:000%2.9m/s
14:000%3.1m/s
15:000%3.2m/s
16:000%2.7m/s
17:000%2.3m/s
18:000%2.2m/s
19:000%2.2m/s
20:000%3m/s
21:000%3.2m/s
22:000%2.8m/s
23:000%2.6m/s
Mon, Aug 24
24:000%2.4m/s
01:000%2.5m/s
02:000%2.3m/s
03:000%1.8m/s
04:000%1.9m/s
05:000%2m/s
06:000%1.8m/s
07:003.6%1.3m/s
08:003.6%2m/s
09:000%3.7m/s
10:000%3.9m/s
11:000%3.6m/s
12:000%2.8m/s
13:000%2.6m/s
14:000%2.9m/s
15:000%2.5m/s
16:000%2.5m/s
17:000%2.1m/s
18:000%1.1m/s
19:000%0.79m/s
20:000%1.2m/s
21:000%2m/s
22:000%2.1m/s
23:000%1.9m/s
Tue, Aug 25
24:000%2.2m/s
01:000%1.1m/s
02:000%1.8m/s
03:000%2m/s
04:000%2m/s
05:000%1.9m/s
06:000%1.9m/s
07:000%1.9m/s
08:000%1.7m/s
09:000%1.4m/s
10:000%1.7m/s
11:000%1.8m/s
12:000%2.4m/s
13:000%5m/s
14:000%6.2m/s
15:000%7.7m/s
16:000%9.4m/s
17:000%6.7m/s
18:000%4.9m/s
19:000%3.9m/s
20:000%3.2m/s
21:000%4.8m/s
22:000%5.2m/s
23:000%6.7m/s
Wed, Aug 26
24:000%7.3m/s
01:002.5%7.8m/s
02:002.1%7.7m/s
03:002.1%7.8m/s
04:001.3%6.6m/s
05:001.3%6.2m/s
06:001.4%6.2m/s
07:001.3%6.8m/s
08:002.2%7.5m/s
09:002.7%8.2m/s
10:003%8.2m/s
11:003%8.3m/s
12:003.3%8.3m/s
13:003.7%7.4m/s
14:003.2%6.5m/s
15:003%5.6m/s
16:003%4.9m/s
17:002.7%4.3m/s
18:002.9%3.6m/s
19:0030%3.2m/s
20:0030%2.9m/s
21:0032%2.5m/s
22:0032%2.4m/s
23:0032%2.3m/s
Thu, Aug 27
24:0032%2.2m/s
01:0043%1.9m/s
02:0050%1.7m/s
03:0050%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/Helsinki
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Mon, Aug 24 Sunrise 04:52 Sunset 21:32
06:00
4°C 8.5°C 5.6°C - 12% 0.1kPa
07:00
4.5°C 8.4°C 7°C - 12% 0.16kPa
08:00
4.7°C 8.4°C 8°C - 73% 0.22kPa
09:00
4.9°C 8.6°C 8.8°C - 99% 0.26kPa
10:00
5.1°C 8.7°C 9.2°C - 78% 0.29kPa
11:00
5.3°C 8.9°C 10°C - 98% 0.34kPa
12:00
5.5°C 9.1°C 10°C - 68% 0.35kPa
13:00
6°C 9.4°C 11°C - 100% 0.41kPa
14:00
6.4°C 9.9°C 12°C - 100% 0.47kPa
15:00
6.5°C 10°C 12°C - 77% 0.44kPa
16:00
6.7°C 10°C 12°C - 100% 0.46kPa
17:00
7.1°C 10°C 11°C - 100% 0.34kPa
18:00
7.2°C 10°C 11°C - 100% 0.3kPa
19:00
7.4°C 10°C 11°C - 100% 0.28kPa
20:00
7.2°C 10°C 11°C - 100% 0.27kPa
21:00
7°C 10°C 10°C - 100% 0.26kPa
22:00
6.9°C 10°C 10°C - 100% 0.26kPa
23:00
6.9°C 10°C 10°C - 100% 0.26kPa
Tue, Aug 25 Sunrise 04:52 Sunset 21:32
24:00
7.1°C 10°C 10°C - 100% 0.23kPa
01:00
7.2°C 9.9°C 10°C - 100% 0.22kPa
02:00
7.7°C 9.9°C 9.9°C - 100% 0.17kPa
03:00
7.8°C 9.8°C 9.9°C - 100% 0.16kPa
04:00
7.7°C 9.7°C 9.9°C - 100% 0.16kPa
05:00
7.7°C 9.6°C 10°C - 100% 0.17kPa
06:00
7.5°C 9.6°C 9.8°C - 100% 0.17kPa
07:00
7.6°C 9.5°C 10°C - 100% 0.18kPa
08:00
7.7°C 9.5°C 10°C - 100% 0.19kPa
09:00
7.9°C 9.6°C 11°C - 100% 0.26kPa
10:00
8°C 9.6°C 11°C - 100% 0.24kPa
11:00
8°C 9.7°C 11°C - 100% 0.27kPa
12:00
8°C 9.7°C 12°C - 100% 0.28kPa
13:00
7.6°C 9.7°C 11°C - 99% 0.29kPa
14:00
7.9°C 9.8°C 11°C - 100% 0.26kPa
15:00
8°C 9.9°C 11°C - 82% 0.27kPa
16:00
7.6°C 10°C 11°C - 99% 0.29kPa
17:00
7.4°C 10°C 10°C - 98% 0.21kPa
18:00
7°C 10°C 9.7°C - 100% 0.2kPa
19:00
6.7°C 10°C 7.9°C - 100% 0.09kPa
20:00
4.5°C 9.8°C 5.6°C - 100% 0.07kPa
21:00
4.1°C 9.6°C 6.1°C - 100% 0.12kPa
22:00
3.3°C 9.3°C 5.6°C - 100% 0.13kPa
23:00
2.9°C 9.1°C 5.2°C - 100% 0.13kPa
Wed, Aug 26 Sunrise 04:57 Sunset 21:27
24:00
2.5°C 8.8°C 5.2°C - 99% 0.15kPa
01:00
1.8°C 8.6°C 4.7°C - 27% 0.16kPa
02:00
0.9°C 8.2°C 3.3°C - 19% 0.12kPa
03:00
-0.1°C 7.8°C 3°C - 9% 0.15kPa
04:00
0°C 7.5°C 2.7°C - 10% 0.13kPa
05:00
0.3°C 7.1°C 2.6°C - 27% 0.11kPa
06:00
0.3°C 6.8°C 2.8°C - 53% 0.12kPa
07:00
0.6°C 6.5°C 3.5°C - 62% 0.15kPa
08:00
0.6°C 6.5°C 4.1°C - 82% 0.18kPa
09:00
0.4°C 6.4°C 4.5°C - 76% 0.21kPa
10:00
0.1°C 6.5°C 5.2°C - 76% 0.27kPa
11:00
0.1°C 6.6°C 5.7°C - 70% 0.3kPa
12:00
0.1°C 6.8°C 6.2°C - 70% 0.34kPa
13:00
0.1°C 6.9°C 6.3°C - 63% 0.34kPa
14:00
-0.1°C 7.2°C 6.7°C - 57% 0.38kPa
15:00
-0.1°C 7.4°C 6.7°C - 78% 0.38kPa
16:00
0.5°C 6.9°C 5.3°C - 54% 0.26kPa
17:00
0.8°C 6.5°C 3.9°C - 29% 0.16kPa
18:00
0.9°C 6.1°C 2.5°C - 5% 0.08kPa
19:00
0.7°C 5.8°C 2.3°C - 6% 0.08kPa
20:00
0.4°C 5.5°C 2°C - 7% 0.07kPa
21:00
0.2°C 5.3°C 1.7°C - 8% 0.07kPa
22:00
0.1°C 5.1°C 1.7°C - 16% 0.08kPa
23:00
-0.1°C 4.9°C 1.6°C - 24% 0.08kPa
Thu, Aug 27 Sunrise 05:01 Sunset 21:22
24:00
-0.2°C 4.8°C 1.6°C - 32% 0.08kPa
01:00
-0.1°C 4.7°C 3°C - 49% 0.15kPa
02:00
-0.2°C 4.7°C 4.4°C - 66% 0.23kPa
03:00
-0.5°C 4.7°C 5.8°C - 83% 0.33kPa
04:00
-0.5°C 5.1°C 6.4°C - 59% 0.37kPa
05:00
-0.5°C 5.5°C 7°C - 34% 0.41kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

Forecast generated

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