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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 Temperature5.4°C
Dew Point-0.3°C (low dew point)
Wind Speed5.9m/s (moderate winds)
Cloud Cover100%

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 Speed96% 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
Mon, Sep 7
24:0030%1.6m/s
01:0030%1.4m/s
02:0031%1.2m/s
03:0026%0.89m/s
04:0036%0.52m/s
05:0034%0.96m/s
06:0034%1.5m/s
07:0035%2.1m/s
08:0039%2.7m/s
09:0042%4m/s
10:0031%3.9m/s
11:0044%5.3m/s
12:0044%5.8m/s
13:0044%5.9m/s
14:0044%6.5m/s
15:0044%7.3m/s
16:0044%7.3m/s
17:0044%7.2m/s
18:0040%6.6m/s
19:0035%7.1m/s
20:0033%4.3m/s
21:0036%4.2m/s
22:0031%4m/s
23:0029%4.5m/s
Tue, Sep 8
24:0029%4.8m/s
01:0027%5.9m/s
02:0022%6m/s
03:0014%6.3m/s
04:0011%6.3m/s
05:0013%5.4m/s
06:009%4.8m/s
07:009%4.2m/s
08:0011%4.1m/s
09:0011%3.9m/s
10:0011%3.6m/s
11:0011%3.5m/s
12:0011%3.6m/s
13:0011%3.9m/s
14:0013%4.2m/s
15:0011%3.4m/s
16:0011%3.5m/s
17:0011%4.1m/s
18:0011%3.8m/s
19:0011%3.1m/s
20:0015%1.7m/s
21:0015%1.6m/s
22:0013%2.1m/s
23:0013%2.2m/s
Wed, Sep 9
24:0013%2.6m/s
01:0013%2.8m/s
02:0015%3.6m/s
03:0016%4.4m/s
04:0023%5.4m/s
05:0031%4.3m/s
06:0030%3.7m/s
07:0030%3.8m/s
08:0033%3.5m/s
09:0046%3.6m/s
10:0046%3.5m/s
11:0040%4.6m/s
12:003%4.8m/s
13:002.8%5.7m/s
14:002.8%5.8m/s
15:002.8%5.8m/s
16:002.8%5.6m/s
17:002.8%5.1m/s
18:002.8%4.8m/s
19:003%3.8m/s
20:001.7%3.3m/s
21:001.9%2.6m/s
22:001.6%2m/s
23:001.9%0.93m/s
Thu, Sep 10
24:002.5%0.81m/s
01:002.2%0.88m/s
02:003.1%1.9m/s
03:0032%2.5m/s
04:0030%3m/s
05:0021%2.4m/s
06:0020%2.1m/s
07:0020%2.3m/s
08:0018%2.9m/s
09:0026%3.3m/s
10:002.5%3.6m/s
11:001.7%3.8m/s
12:001.7%4.1m/s
13:001.7%3.7m/s
14:001.4%3.2m/s
15:001.2%2.8m/s
16:001.2%2.8m/s
17:001.2%2.7m/s
18:001.6%2.7m/s
19:001.6%2.6m/s
20:001.2%2.5m/s
21:001.2%2.3m/s
22:001.2%2.5m/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/Helsinki
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Tue, Sep 8 Sunrise 05:52 Sunset 20:24
01:00
-0.3°C 5.4°C 5.1°C - 100% 0.28kPa
02:00
0.8°C 5.4°C 4.6°C - 100% 0.2kPa
03:00
2.1°C 5.3°C 4.2°C - 100% 0.11kPa
04:00
2.6°C 5.2°C 4.3°C - 100% 0.09kPa
05:00
3.3°C 5.2°C 4.4°C - 100% 0.07kPa
06:00
3.7°C 5.1°C 4.5°C - 100% 0.05kPa
07:00
4°C 5.1°C 4.6°C - 100% 0.04kPa
08:00
4.4°C 5.1°C 4.9°C - 100% 0.03kPa
09:00
4.6°C 5.2°C 5.1°C - 100% 0.03kPa
10:00
4.6°C 5.2°C 5.3°C - 100% 0.04kPa
11:00
4.6°C 5.3°C 5.3°C - 100% 0.04kPa
12:00
4.6°C 5.3°C 5.3°C - 100% 0.04kPa
13:00
4.4°C 5.4°C 5.3°C - 100% 0.05kPa
14:00
3.9°C 5.5°C 5°C - 100% 0.06kPa
15:00
4°C 5.5°C 4.7°C - 100% 0.04kPa
16:00
4.6°C 5.5°C 4.9°C - 100% 0.02kPa
17:00
5.1°C 5.4°C 5.4°C - 100% 0.02kPa
18:00
5.2°C 5.4°C 5.5°C - 100% 0.01kPa
19:00
5.1°C 5.4°C 5.4°C - 100% 0.01kPa
20:00
5.3°C 5.5°C 5.5°C - 100% 0.01kPa
21:00
5.3°C 5.5°C 5.5°C - 100% 0.01kPa
22:00
5.3°C 5.5°C 5.5°C - 100% 0.01kPa
23:00
5.3°C 5.5°C 5.5°C - 100% 0.01kPa
Wed, Sep 9 Sunrise 05:56 Sunset 20:20
24:00
5.3°C 5.5°C 5.7°C - 100% 0.02kPa
01:00
4.9°C 5.6°C 5.8°C - 100% 0.06kPa
02:00
4.8°C 5.5°C 6.5°C - 100% 0.1kPa
03:00
4.9°C 5.6°C 6.9°C - 100% 0.13kPa
04:00
4.8°C 5.6°C 7.4°C - 28% 0.17kPa
05:00
3.4°C 5.5°C 5.3°C - 5% 0.11kPa
06:00
2.7°C 5.4°C 4.1°C - 3% 0.08kPa
07:00
2.8°C 5.2°C 4.1°C - 3% 0.07kPa
08:00
3.4°C 5.2°C 5.7°C - 2% 0.13kPa
09:00
3.5°C 5.2°C 7.1°C - 5% 0.22kPa
10:00
3.3°C 5.6°C 8.4°C - 5% 0.33kPa
11:00
3.2°C 6°C 9.3°C - 28% 0.4kPa
12:00
3.3°C 6.4°C 10°C - 88% 0.45kPa
13:00
3.5°C 6.8°C 10°C - 86% 0.45kPa
14:00
3.6°C 7.1°C 10°C - 100% 0.47kPa
15:00
3.5°C 7.4°C 11°C - 100% 0.5kPa
16:00
4°C 7.7°C 11°C - 100% 0.47kPa
17:00
5°C 7.9°C 10°C - 95% 0.38kPa
18:00
5.6°C 8°C 9.8°C - 90% 0.3kPa
19:00
5.7°C 8°C 8.8°C - 86% 0.21kPa
20:00
5.5°C 7.9°C 7.6°C - 94% 0.14kPa
21:00
5.1°C 7.7°C 6.9°C - 96% 0.12kPa
22:00
4.7°C 7.5°C 6.3°C - 86% 0.1kPa
23:00
3.8°C 7.2°C 5.3°C - 61% 0.09kPa
Thu, Sep 10 Sunrise 06:00 Sunset 20:15
24:00
3.3°C 6.8°C 4.8°C - 33% 0.09kPa
01:00
2.9°C 6.4°C 4.5°C - 55% 0.09kPa
02:00
2.9°C 6.1°C 4.7°C - 7% 0.1kPa
03:00
2.9°C 5.9°C 4.7°C - 8% 0.1kPa
04:00
2.9°C 5.6°C 4.7°C - 5% 0.1kPa
05:00
2.5°C 5.4°C 4.3°C - 41% 0.1kPa
06:00
2.2°C 5.1°C 4.4°C - 96% 0.12kPa
07:00
2.6°C 4.9°C 4.9°C - 100% 0.13kPa
08:00
3.5°C 4.9°C 6°C - 100% 0.15kPa
09:00
4.3°C 5.1°C 7.4°C - 100% 0.2kPa
10:00
4.7°C 6°C 7.7°C - 100% 0.2kPa
11:00
5.1°C 6.9°C 8.1°C - 100% 0.2kPa
12:00
5.5°C 7.9°C 8.5°C - 100% 0.2kPa
13:00
5.4°C 7.8°C 7.6°C - 100% 0.15kPa
14:00
5.2°C 7.7°C 6.8°C - 100% 0.1kPa
15:00
5°C 7.6°C 6°C - 100% 0.06kPa
16:00
5°C 7.4°C 6°C - 100% 0.06kPa
17:00
5°C 7.2°C 6°C - 100% 0.06kPa
18:00
4.9°C 7.1°C 6°C - 100% 0.07kPa
19:00
4.5°C 6.9°C 5.5°C - 96% 0.06kPa
20:00
4.1°C 6.7°C 5.1°C - 91% 0.06kPa
21:00
3.7°C 6.6°C 4.6°C - 86% 0.05kPa
22:00
3.5°C 6.3°C 4.4°C - 91% 0.05kPa
23:00
3.2°C 6°C 4.1°C - 95% 0.05kPa
Fri, Sep 11 Sunrise 06:04 Sunset 20:10
24:00
3°C 5.8°C 3.8°C - 99% 0.05kPa
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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