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No opportunity windows are predicted in the next 10 days. Conditions can change quickly, so check back for updates.

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Rule Morning Frost

Pienza - Morning Frost - Tuscany

Q: What conditions does Morning Frost look for?

Time Window: Sunrise -45m to +90m. Frost Probability: ≥ 60.0%. Wind Speed: ≤ 1.5m/s

Pienza, Tuscany, Italy

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)

Frost Probability 100% failing

Time Window 88% failing

Wind Speed 53% failing

Currently

Real-time conditions

Frost Probability

Soil Temperature12.3°C

Dew Point9.9°C (moderate dew point)

Wind Speed0.8m/s (calm conditions)

Cloud Cover100%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Rome

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

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72-hour requirements breakdown

What passed or failed, hour by hour

0matching hours in the next 87 hours

AND logic: all conditions required

Meets requirement

Misses requirement

Time Europe/Rome	Time Window Sunrise -45m to +90m	Frost Probability ≥ 60.0%	Wind Speed ≤ 1.5m/s
Fri, May 15
06:00	✓	0%	2.1m/s
07:00	✓	0%	2.6m/s
08:00	✕	0%	3.7m/s
09:00	✕	0%	4.6m/s
10:00	✕	0%	4.7m/s
11:00	✕	0%	5.6m/s
12:00	✕	0%	6.2m/s
13:00	✕	0%	6.6m/s
14:00	✕	0%	5.9m/s
15:00	✕	0%	5m/s
16:00	✕	0%	4.4m/s
17:00	✕	0%	1.9m/s
18:00	✕	0%	0.92m/s
19:00	✕	0%	1.6m/s
20:00	✕	0%	1.2m/s
21:00	✕	0%	0.81m/s
22:00	✕	0%	0.81m/s
23:00	✕	0%	0.22m/s
Sat, May 16
24:00	✕	0%	0.61m/s
01:00	✕	0%	0.59m/s
02:00	✕	0%	0.08m/s
03:00	✕	0%	1.6m/s
04:00	✕	0%	2.6m/s
05:00	✓	0%	0.62m/s
06:00	✓	0%	3.9m/s
07:00	✓	0%	4m/s
08:00	✕	0%	1.3m/s
09:00	✕	0%	1.8m/s
10:00	✕	0%	1.8m/s
11:00	✕	0%	1.9m/s
12:00	✕	0%	1.7m/s
13:00	✕	0%	0.96m/s
14:00	✕	0%	2.4m/s
15:00	✕	0%	2.8m/s
16:00	✕	0%	3.3m/s
17:00	✕	0%	3.9m/s
18:00	✕	0%	3.6m/s
19:00	✕	0%	3.5m/s
20:00	✕	0%	2.9m/s
21:00	✕	0%	2.2m/s
22:00	✕	0%	1.5m/s
23:00	✕	0%	1.1m/s
Sun, May 17
24:00	✕	0%	0.74m/s
01:00	✕	0%	0.76m/s
02:00	✕	0%	0.77m/s
03:00	✕	0%	1.1m/s
04:00	✕	0%	1.3m/s
05:00	✓	0%	1.7m/s
06:00	✓	0%	1.2m/s
07:00	✓	0%	0.7m/s
08:00	✕	0%	1m/s
09:00	✕	0%	1.7m/s
10:00	✕	0%	2.2m/s
11:00	✕	0%	2.6m/s
12:00	✕	0%	2.9m/s
13:00	✕	0%	3.2m/s
14:00	✕	0%	2.8m/s
15:00	✕	0%	2m/s
16:00	✕	0%	2.4m/s
17:00	✕	0%	3m/s
18:00	✕	0%	2.8m/s
19:00	✕	0%	2.2m/s
20:00	✕	0%	1.4m/s
21:00	✕	0%	1.2m/s
22:00	✕	0%	1.2m/s
23:00	✕	0%	0.95m/s
Mon, May 18
24:00	✕	0%	0.77m/s
01:00	✕	0%	0.72m/s
02:00	✕	0%	0.59m/s
03:00	✕	0%	0.8m/s
04:00	✕	0%	1m/s
05:00	✓	0%	1.2m/s
06:00	✓	0%	1.9m/s
07:00	✓	0%	2.5m/s
08:00	✕	0%	3.2m/s
09:00	✕	0%	3.5m/s
10:00	✕	0%	3.9m/s
11:00	✕	0%	4.3m/s
12:00	✕	0%	3.5m/s
13:00	✕	0%	2.7m/s
14:00	✕	0%	1.9m/s
15:00	✕	0%	1.5m/s
16:00	✕	0%	1.2m/s
17:00	✕	0%	0.84m/s
18:00	✕	0%	1m/s
19:00	✕	0%	1.2m/s
20:00	✕	0%	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/Rome	Dew Point °C	Surface Temperature °C	Temperature °C	Time Window	Total Cloud Coverage %	Vapor Pressure Deficit kPa
Fri, May 15 Sunrise 05:50 Sunset 20:29
22:00 ☾	9.9°C	12°C	10°C	-	100%	0.05kPa
23:00 ☾	9.6°C	12°C	10°C	-	100%	0.05kPa
Sat, May 16 Sunrise 05:50 Sunset 20:29
24:00 ☾	9.5°C	12°C	10°C	-	100%	0.04kPa
01:00 ☾	9.5°C	12°C	10°C	-	100%	0.05kPa
02:00 ☾	9.4°C	12°C	10°C	-	100%	0.05kPa
03:00 ☾	9.2°C	12°C	9.6°C	-	100%	0.04kPa
04:00 ☾	8.3°C	12°C	8.8°C	-	100%	0.04kPa
05:00 ☾	7.6°C	12°C	8.3°C	-	100%	0.05kPa
06:00	7.2°C	11°C	7.9°C	-	100%	0.05kPa
07:00	5.8°C	11°C	6.4°C	-	100%	0.04kPa
08:00	5.4°C	11°C	6.1°C	-	100%	0.04kPa
09:00	5.7°C	11°C	6.4°C	-	39%	0.05kPa
10:00	7°C	11°C	9.6°C	-	39%	0.19kPa
11:00	7.1°C	11°C	11°C	-	53%	0.32kPa
12:00	7.1°C	11°C	12°C	-	81%	0.43kPa
13:00	7.7°C	12°C	13°C	-	100%	0.48kPa
14:00	8.1°C	12°C	13°C	-	96%	0.42kPa
15:00	8.7°C	12°C	13°C	-	43%	0.36kPa
16:00	8.8°C	12°C	13°C	-	17%	0.36kPa
17:00	8.9°C	12°C	13°C	-	6%	0.32kPa
18:00	8.7°C	12°C	13°C	-	4%	0.34kPa
19:00	9.1°C	12°C	12°C	-	1%	0.26kPa
20:00	8.4°C	12°C	10°C	-	7%	0.15kPa
21:00 ☾	7.4°C	12°C	8.6°C	-	15%	0.09kPa
22:00 ☾	7°C	12°C	8.1°C	-	2%	0.08kPa
23:00 ☾	6.5°C	12°C	7.6°C	-	0%	0.08kPa
Sun, May 17 Sunrise 05:49 Sunset 20:30
24:00 ☾	6.2°C	11°C	7.3°C	-	0%	0.07kPa
01:00 ☾	5.8°C	11°C	7°C	-	0%	0.07kPa
02:00 ☾	5.5°C	11°C	6.8°C	-	0%	0.08kPa
03:00 ☾	5.3°C	11°C	6.6°C	-	0%	0.08kPa
04:00 ☾	5°C	10°C	6.3°C	-	0%	0.08kPa
05:00 ☾	4.8°C	10°C	5.9°C	-	0%	0.06kPa
06:00	4.5°C	10°C	5.4°C	-	0%	0.05kPa
07:00	6.2°C	9.9°C	7.5°C	-	0%	0.09kPa
08:00	7.2°C	10°C	9.9°C	-	0%	0.2kPa
09:00	7.6°C	10°C	12°C	-	0%	0.35kPa
10:00	7.3°C	10°C	14°C	-	5%	0.57kPa
11:00	7.1°C	10°C	16°C	-	28%	0.75kPa
12:00	6.9°C	11°C	17°C	-	7%	0.94kPa
13:00	6.6°C	11°C	18°C	-	98%	1.1kPa
14:00	6.6°C	12°C	18°C	-	62%	1.1kPa
15:00	6.3°C	12°C	19°C	-	76%	1.2kPa
16:00	8.1°C	12°C	17°C	-	99%	0.9kPa
17:00	10°C	12°C	15°C	-	100%	0.47kPa
18:00	10°C	12°C	16°C	-	100%	0.55kPa
19:00	11°C	12°C	15°C	-	100%	0.46kPa
20:00	9.7°C	12°C	13°C	-	100%	0.29kPa
21:00 ☾	8.9°C	12°C	11°C	-	42%	0.18kPa
22:00 ☾	8.3°C	12°C	10°C	-	100%	0.16kPa
23:00 ☾	7.9°C	12°C	9.9°C	-	93%	0.15kPa
Mon, May 18 Sunrise 05:48 Sunset 20:31
24:00 ☾	7.6°C	12°C	9.5°C	-	5%	0.14kPa
01:00 ☾	7.3°C	12°C	9.1°C	-	1%	0.14kPa
02:00 ☾	6.9°C	11°C	8.7°C	-	0%	0.13kPa
03:00 ☾	7.9°C	12°C	12°C	-	34%	0.33kPa
04:00 ☾	8.4°C	12°C	15°C	-	67%	0.61kPa
05:00 ☾	8.3°C	12°C	18°C	-	100%	1kPa
06:00	8.1°C	13°C	19°C	-	100%	1.1kPa
07:00	7.8°C	13°C	19°C	-	100%	1.2kPa
08:00	7.4°C	13°C	20°C	-	100%	1.3kPa
09:00	7.7°C	13°C	19°C	-	100%	1.2kPa
10:00	7.9°C	14°C	19°C	-	100%	1.1kPa
11:00	8.1°C	14°C	18°C	-	100%	1kPa
12:00	8.4°C	14°C	17°C	-	71%	0.8kPa
13:00	8.5°C	14°C	15°C	-	42%	0.61kPa
14:00	8.5°C	14°C	14°C	-	12%	0.45kPa
15:00	8.1°C	14°C	12°C	-	8%	0.35kPa
16:00	7.6°C	13°C	11°C	-	4%	0.26kPa
17:00	7°C	13°C	9.5°C	-	0%	0.18kPa
18:00	6.7°C	13°C	9.6°C	-	2%	0.21kPa
19:00	6.4°C	13°C	9.7°C	-	3%	0.24kPa
20:00	6.1°C	13°C	9.8°C	-	5%	0.27kPa
21:00 ☾	5.8°C	12°C	9.7°C	-	5%	0.28kPa

How to read: these inputs help produce the derived score; they are not requirements by themselves.

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