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Rule Fog Hunter

Fog Hunter Forecast for Mu Cang Chai, Vietnam

Mù Cang Chải, Yên Bái Province, Vietnam

The view traces Mu Cang Chai's tightly curved terrace walls across steep slopes, using isolated huts, paths and farmers as scale within the field patterns.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread0.3°C
Visibility12473 (Clear)
Relative Humidity98%
Wind Speed0.8m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Bangkok

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (85-hour forecast)

  • Fog Probability100% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Vietnam. The requirements and hourly values below show how those signals apply at Mu Cang Chai.

Explore Fog Hunter conditions across Vietnam →

Recorded match history

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

Last 30 days
1
recorded matching window · 56% average confidence
Last 90 days
11
recorded matching windows · 87% average confidence
Last 365 days
11
recorded matching windows · 87% average confidence
Most represented month

July, with 11 of 11 matches recorded in the last 365 days.

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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85-hour requirements breakdown

When available, the detailed table below covers only the stated 85-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 85 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Bangkok
Fog Probability
≥ 75.0%
Sat, Aug 22
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sun, Aug 23
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:0023%
17:0034%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Mon, Aug 24
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:0034%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:0039%
21:0039%
22:000%
23:000%
Tue, Aug 25
24:000%
01:000%
02:0039%
03:0039%
04:0041%
05:0041%
06:0041%
07:0036%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Wed, Aug 26
24:000%
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fog 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
Asia/Bangkok
Clear Sky Probability (Ensemble)
%
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Solar Elevation
°
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Sun, Aug 23 Sunrise 05:43 Sunset 18:29
03:00 ☾
0% 19°C 0.05mm 98% 0cm -36° 20°C 3.1mm 0.04kPa 12473m 0.7m/s 0.8m/s
04:00 ☾
0% 19°C 0.17mm 98% 0cm -24° 20°C 4.6mm 0.04kPa 4435m 1m/s 1.2m/s
05:00 ☾
0% 19°C 0.66mm 99% 0cm -11° 19°C 6.3mm 0.03kPa 13251m 0.61m/s 0.63m/s
06:00 ☾
0% 19°C 0.34mm 99% 0cm 3° 19°C 6.8mm 0.02kPa 19516m 0.93m/s 0.93m/s
07:00
0% 19°C 0.24mm 100% 0cm 17° 19°C 7.2mm 0.01kPa 6380m 2m/s 1.1m/s
08:00
0% 20°C 0.82mm 100% 0cm 30° 20°C 1.1mm 0.01kPa 7284m 1.6m/s 0.93m/s
09:00
0% 20°C 1.1mm 100% 0cm 44° 20°C 2.1mm 0.01kPa 8497m 2.2m/s 1.2m/s
10:00
0% 20°C 0.01mm 99% 0cm 58° 20°C 2.5mm 0.02kPa 20509m 2.3m/s 1.1m/s
11:00
0% 20°C 0.01mm 98% 0cm 71° 21°C 2.6mm 0.05kPa 14211m 2.6m/s 1.4m/s
12:00
0% 21°C 0.26mm 92% 0cm 79° 22°C 3mm 0.22kPa 10321m 2.5m/s 1.5m/s
13:00
0% 20°C 0mm 96% 0cm 73° 21°C 3.3mm 0.1kPa 5372m 2.6m/s 1.3m/s
14:00
0% 20°C 0mm 90% 0cm 61° 22°C 0.06mm 0.26kPa 24135m 2.9m/s 1.5m/s
15:00
0% 20°C 0mm 92% 0cm 47° 22°C 0.25mm 0.2kPa 14647m 2.8m/s 1.2m/s
16:00
0% 21°C 0mm 96% 0cm 33° 21°C 0.38mm 0.09kPa 13232m 2.2m/s 1.1m/s
17:00
0% 21°C 0.2mm 98% 0cm 19° 21°C 0.69mm 0.06kPa 12078m 2m/s 0.97m/s
18:00
0% 20°C 1.1mm 99% 0cm 5.8° 20°C 2.3mm 0.02kPa 5182m 1.5m/s 1.2m/s
19:00 ☾
0% 20°C 0.63mm 99% 0cm -7.9° 20°C 3.6mm 0.03kPa 6795m 1.8m/s 1.6m/s
20:00 ☾
0% 20°C 0.09mm 99% 0cm -21° 20°C 1.2mm 0.03kPa 12581m 2.4m/s 1.7m/s
21:00 ☾
1% 20°C 0.37mm 99% 0cm -34° 20°C 1.9mm 0.03kPa 17938m 1.7m/s 1.5m/s
22:00 ☾
1% 20°C 0.32mm 99% 0cm -45° 20°C 2.8mm 0.03kPa 13331m 2.2m/s 1.8m/s
23:00 ☾
1% 20°C 0.17mm 99% 0cm -53° 20°C 3.6mm 0.03kPa 10284m 2.3m/s 1.7m/s
Mon, Aug 24 Sunrise 05:44 Sunset 18:28
24:00 ☾
1% 20°C 0.28mm 99% 0cm -57° 20°C 4.4mm 0.03kPa 9053m 2.1m/s 1.6m/s
01:00 ☾
1% 20°C 0.69mm 99% 0cm -54° 20°C 5.6mm 0.02kPa 5251m 2.2m/s 1.6m/s
02:00 ☾
1% 20°C 0.57mm 99% 0cm -47° 20°C 1.1mm 0.02kPa 6012m 2.1m/s 1.5m/s
03:00 ☾
1% 20°C 0.09mm 99% 0cm -36° 20°C 2.4mm 0.02kPa 5676m 2.3m/s 1.7m/s
04:00 ☾
1% 20°C 0.01mm 99% 0cm -24° 20°C 3.4mm 0.02kPa 5288m 2.3m/s 1.6m/s
05:00 ☾
1% 20°C 0mm 99% 0cm -11° 20°C 4.2mm 0.02kPa 2494m 2.4m/s 1.8m/s
06:00 ☾
0% 20°C 0mm 99% 0cm 3° 20°C 4.8mm 0.03kPa 7290m 2.4m/s 1.7m/s
07:00
0% 20°C 0mm 98% 0cm 17° 20°C 5.2mm 0.03kPa 13085m 2.3m/s 1.7m/s
08:00
0% 20°C 0mm 98% 0cm 30° 20°C 0.69mm 0.05kPa 8547m 2.2m/s 1.6m/s
09:00
1% 21°C 0mm 97% 0cm 44° 21°C 1.8mm 0.08kPa 4425m 2m/s 1.2m/s
10:00
1% 21°C 0mm 96% 0cm 58° 22°C 3mm 0.1kPa 6559m 1.4m/s 0.89m/s
11:00
1% 22°C 0mm 91% 0cm 71° 23°C 4.6mm 0.26kPa 6773m 1.3m/s 0.22m/s
12:00
1% 22°C 0mm 88% 0cm 79° 24°C 5.7mm 0.37kPa 8364m 1.7m/s 0.31m/s
13:00
1% 22°C 0mm 88% 0cm 73° 24°C 7.1mm 0.35kPa 7023m 1.7m/s 0.25m/s
14:00
1% 22°C 0mm 89% 0cm 61° 24°C 1.3mm 0.34kPa 14771m 1.7m/s 0.16m/s
15:00
0% 23°C 0mm 90% 0cm 47° 24°C 2.6mm 0.3kPa 14111m 1.6m/s 0.17m/s
16:00
0% 23°C 0.01mm 94% 0cm 33° 24°C 3.8mm 0.2kPa 16412m 1.8m/s 0.45m/s
17:00
0% 23°C 0mm 96% 0cm 19° 23°C 4.6mm 0.12kPa 9841m 1.5m/s 0.71m/s
18:00
0% 21°C 0mm 97% 0cm 5.6° 22°C 6.1mm 0.07kPa 4972m 1.8m/s 1.6m/s
19:00 ☾
0% 20°C 0mm 98% 0cm -8.1° 20°C 7.9mm 0.04kPa 5034m 1.5m/s 1.9m/s
20:00 ☾
1% 20°C 0mm 98% 0cm -21° 20°C 0.75mm 0.05kPa 15416m 1.4m/s 1.8m/s
21:00 ☾
1% 19°C 0mm 97% 0cm -34° 20°C 0.88mm 0.06kPa 24135m 1.3m/s 1.7m/s
22:00 ☾
2% 20°C 0mm 98% 0cm -45° 20°C 1.4mm 0.05kPa 14656m 1.7m/s 1.7m/s
23:00 ☾
1% 20°C 0mm 98% 0cm -53° 20°C 2.3mm 0.06kPa 12704m 1.3m/s 1.5m/s
Tue, Aug 25 Sunrise 05:44 Sunset 18:27
24:00 ☾
1% 20°C 0mm 98% 0cm -57° 20°C 3mm 0.06kPa 15934m 1.2m/s 1.5m/s
01:00 ☾
0% 19°C 0mm 97% 0cm -55° 20°C 3.4mm 0.07kPa 17379m 1m/s 1.1m/s
02:00 ☾
0% 19°C 0mm 98% 0cm -47° 20°C 0.25mm 0.05kPa 19982m 0.71m/s 0.84m/s
03:00 ☾
0% 19°C 0mm 98% 0cm -36° 19°C 0.38mm 0.05kPa 24134m 0.43m/s 0.46m/s
04:00 ☾
0% 19°C 0mm 98% 0cm -24° 19°C 0.38mm 0.04kPa 24134m 0.6m/s 0.69m/s
05:00 ☾
0% 19°C 0mm 98% 0cm -11° 19°C 0.38mm 0.03kPa 24135m 0.71m/s 0.76m/s
06:00 ☾
0% 18°C 0mm 99% 0cm 2.9° 19°C 0.44mm 0.03kPa 23055m 0.51m/s 0.53m/s
07:00
0% 20°C 0mm 98% 0cm 17° 20°C 0.81mm 0.04kPa 15438m 0.43m/s 0.19m/s
08:00
0% 21°C 0mm 96% 0cm 30° 21°C 1.5mm 0.11kPa 14778m 1.1m/s 0.61m/s
09:00
0% 22°C 0mm 93% 0cm 44° 23°C 2.2mm 0.21kPa 14119m 1.7m/s 1m/s
10:00
0% 23°C 0mm 90% 0cm 58° 25°C 2.9mm 0.31kPa 13459m 2.3m/s 1.4m/s
11:00
0% 22°C 0.04mm 92% 0cm 71° 23°C 3.4mm 0.24kPa 17018m 1.9m/s 1.3m/s
12:00
0% 21°C 0.09mm 93% 0cm 79° 22°C 3.9mm 0.17kPa 20576m 1.4m/s 1.1m/s
13:00
0% 20°C 0.13mm 95% 0cm 73° 21°C 4.4mm 0.12kPa 24135m 0.95m/s 0.97m/s
14:00
0% 19°C 0.09mm 95% 0cm 61° 20°C 3.2mm 0.13kPa 24135m 0.98m/s 0.97m/s
15:00
1% 19°C 0.05mm 94% 0cm 47° 20°C 2mm 0.13kPa 24135m 1m/s 0.98m/s
16:00
1% 19°C 0.01mm 94% 0cm 33° 20°C 0.75mm 0.14kPa 24135m 1m/s 0.99m/s
17:00
1% 19°C 0.06mm 93% 0cm 19° 20°C 1.2mm 0.15kPa 24135m 0.9m/s 0.8m/s
18:00
0% 18°C 0.12mm 93% 0cm 5.4° 20°C 1.7mm 0.16kPa 24135m 0.77m/s 0.6m/s
19:00 ☾
0% 18°C 0.17mm 92% 0cm -8.3° 19°C 2.2mm 0.17kPa 24135m 0.64m/s 0.4m/s
20:00 ☾
0% 18°C 0.14mm 93% 0cm -22° 19°C 1.8mm 0.15kPa 24135m 0.87m/s 0.76m/s
21:00 ☾
0% 19°C 0.1mm 94% 0cm -34° 19°C 1.3mm 0.14kPa 24135m 1.1m/s 1.1m/s
22:00 ☾
0% 19°C 0.07mm 95% 0cm -45° 20°C 0.88mm 0.12kPa 24135m 1.3m/s 1.5m/s
23:00 ☾
0% 19°C 1.3mm 96% 0cm -54° 20°C 3.7mm 0.08kPa 16189m 1.6m/s 1.4m/s
Wed, Aug 26 Sunrise 05:44 Sunset 18:26
24:00 ☾
0% 19°C 2.5mm 98% 0cm -58° 20°C 6.5mm 0.05kPa 8242m 1.8m/s 1.4m/s
01:00 ☾
0% 19°C 3.8mm 100% 0cm -55° 19°C 9.3mm 0.01kPa 295m 2m/s 1.4m/s
02:00 ☾
0% 19°C 5mm 99% 0cm -47° 20°C 12mm 0.01kPa 752m 1.8m/s 1.1m/s
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.

How opportunities work → Weather data sources →
Forecast generated

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