How often do conditions match?

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

Volterra - 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

Volterra, 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 83% failing

Wind Speed 36% failing

Currently

Real-time conditions

Frost Probability

Soil Temperature11.4°C

Dew Point8.2°C (moderate dew point)

Wind Speed0.8m/s (calm conditions)

Cloud Cover0%

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 95 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
Wed, Apr 8
09:00	✕	0%	0.9m/s
10:00	✕	0%	0.35m/s
11:00	✕	0%	1.5m/s
12:00	✕	0%	2.9m/s
13:00	✕	0%	3.5m/s
14:00	✕	0%	4m/s
15:00	✕	0%	4.3m/s
16:00	✕	0%	4.5m/s
17:00	✕	0%	4.1m/s
18:00	✕	0%	3.2m/s
19:00	✕	0%	2.2m/s
20:00	✕	0%	1.6m/s
21:00	✕	0%	1.9m/s
22:00	✕	0%	1.7m/s
23:00	✕	0%	1.6m/s
Thu, Apr 9
24:00	✕	0%	1.4m/s
01:00	✕	0%	1.1m/s
02:00	✕	0%	1.2m/s
03:00	✕	0%	1.1m/s
04:00	✕	0%	0.85m/s
05:00	✓	0%	0.62m/s
06:00	✓	0%	0.72m/s
07:00	✓	0%	0.67m/s
08:00	✓	0%	0.82m/s
09:00	✕	0%	0.8m/s
10:00	✕	0%	0.8m/s
11:00	✕	0%	0.93m/s
12:00	✕	0%	2m/s
13:00	✕	0%	3.2m/s
14:00	✕	0%	4.3m/s
15:00	✕	0%	4.9m/s
16:00	✕	0%	5.1m/s
17:00	✕	0%	4.5m/s
18:00	✕	0%	4.1m/s
19:00	✕	0%	2.9m/s
20:00	✕	0%	1.9m/s
21:00	✕	0%	1.7m/s
22:00	✕	0%	1.8m/s
23:00	✕	0%	1.8m/s
Fri, Apr 10
24:00	✕	0%	1.6m/s
01:00	✕	0%	1.9m/s
02:00	✕	0%	1.5m/s
03:00	✕	0%	1.8m/s
04:00	✕	0%	1.2m/s
05:00	✓	0%	1.4m/s
06:00	✓	0%	1.3m/s
07:00	✓	0%	1.2m/s
08:00	✓	0%	1.1m/s
09:00	✕	0%	1.1m/s
10:00	✕	0%	1.2m/s
11:00	✕	0%	1.1m/s
12:00	✕	0%	1.6m/s
13:00	✕	0%	3m/s
14:00	✕	0%	3.3m/s
15:00	✕	0%	3.7m/s
16:00	✕	0%	3.4m/s
17:00	✕	0%	2.8m/s
18:00	✕	0%	2.5m/s
19:00	✕	0%	1.8m/s
20:00	✕	0%	1.4m/s
21:00	✕	0%	1.3m/s
22:00	✕	0%	1m/s
23:00	✕	0%	0.63m/s
Sat, Apr 11
24:00	✕	0%	0.15m/s
01:00	✕	0%	0.23m/s
02:00	✕	0%	0.89m/s
03:00	✕	0%	0.88m/s
04:00	✕	0%	1m/s
05:00	✓	0%	1m/s
06:00	✓	0%	0.87m/s
07:00	✓	0%	0.86m/s
08:00	✓	0%	1m/s
09:00	✕	0%	0.92m/s
10:00	✕	0%	0.91m/s
11:00	✕	0%	1m/s
12:00	✕	0%	1.4m/s
13:00	✕	0%	1.1m/s
14:00	✕	0%	1.4m/s
15:00	✕	0%	1.1m/s
16:00	✕	0%	0.82m/s
17:00	✕	0%	0.53m/s
18:00	✕	0%	0.73m/s
19:00	✕	0%	0.93m/s
20:00	✕	0%	1.1m/s
21:00	✕	0%	1.2m/s
22:00	✕	0%	1.2m/s
23:00	✕	0%	1.3m/s
Sun, Apr 12
24:00	✕	0%	1.3m/s
01:00	✕	0%	1.4m/s
02:00	✕	0%	1.4m/s
03:00	✕	0%	1.5m/s
04:00	✕	0%	1.6m/s
05:00	✓	0%	1.7m/s
06:00	✓	0%	1.5m/s
07:00	✓	0%	1.3m/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
Thu, Apr 9 Sunrise 06:44 Sunset 19:52
10:00	8.2°C	11°C	16°C	-	0%	0.73kPa
11:00	8.3°C	12°C	18°C	-	0%	0.95kPa
12:00	8.3°C	13°C	19°C	-	0%	1.1kPa
13:00	8.9°C	13°C	20°C	-	0%	1.2kPa
14:00	9.1°C	14°C	21°C	-	0%	1.3kPa
15:00	8.5°C	14°C	20°C	-	0%	1.2kPa
16:00	8.2°C	15°C	20°C	-	0%	1.2kPa
17:00	8.4°C	15°C	19°C	-	5%	1kPa
18:00	8.9°C	15°C	17°C	-	4%	0.85kPa
19:00	9.9°C	15°C	15°C	-	0%	0.53kPa
20:00 ☾	9°C	15°C	12°C	-	0%	0.28kPa
21:00 ☾	8.8°C	14°C	11°C	-	0%	0.2kPa
22:00 ☾	8.7°C	14°C	11°C	-	5%	0.17kPa
23:00 ☾	8.5°C	14°C	10°C	-	0%	0.15kPa
Fri, Apr 10 Sunrise 06:44 Sunset 19:52
24:00 ☾	8.3°C	13°C	10°C	-	4%	0.14kPa
01:00 ☾	8.3°C	13°C	10°C	-	5%	0.14kPa
02:00 ☾	8.1°C	13°C	9.8°C	-	5%	0.13kPa
03:00 ☾	8.2°C	13°C	9.8°C	-	5%	0.12kPa
04:00 ☾	7.8°C	12°C	9.4°C	-	5%	0.12kPa
05:00 ☾	7.8°C	12°C	9.4°C	-	6%	0.12kPa
06:00 ☾	7.6°C	12°C	9.2°C	-	32%	0.12kPa
07:00	7.6°C	11°C	9.3°C	-	11%	0.12kPa
08:00	8.7°C	11°C	11°C	-	45%	0.23kPa
09:00	9.4°C	12°C	14°C	-	56%	0.4kPa
10:00	10°C	12°C	16°C	-	98%	0.6kPa
11:00	10°C	12°C	18°C	-	74%	0.76kPa
12:00	9.9°C	13°C	19°C	-	99%	1kPa
13:00	9.9°C	14°C	20°C	-	100%	1.2kPa
14:00	9.4°C	14°C	21°C	-	100%	1.3kPa
15:00	8.9°C	15°C	21°C	-	100%	1.3kPa
16:00	8.6°C	15°C	20°C	-	100%	1.3kPa
17:00	8.5°C	15°C	20°C	-	100%	1.2kPa
18:00	9.5°C	15°C	19°C	-	100%	0.95kPa
19:00	9.9°C	15°C	16°C	-	100%	0.61kPa
20:00 ☾	8.6°C	15°C	14°C	-	100%	0.43kPa
21:00 ☾	8.1°C	15°C	13°C	-	100%	0.38kPa
22:00 ☾	7.7°C	15°C	12°C	-	100%	0.34kPa
23:00 ☾	7.5°C	14°C	12°C	-	100%	0.35kPa
Sat, Apr 11 Sunrise 06:43 Sunset 19:53
24:00 ☾	7.4°C	14°C	12°C	-	100%	0.34kPa
01:00 ☾	7.3°C	14°C	11°C	-	100%	0.29kPa
02:00 ☾	7.3°C	13°C	11°C	-	90%	0.26kPa
03:00 ☾	7.2°C	13°C	10°C	-	78%	0.24kPa
04:00 ☾	7.1°C	13°C	10°C	-	93%	0.22kPa
05:00 ☾	7.2°C	12°C	9.8°C	-	8%	0.2kPa
06:00 ☾	7°C	12°C	9.5°C	-	5%	0.19kPa
07:00	7°C	12°C	9.4°C	-	5%	0.18kPa
08:00	8°C	12°C	12°C	-	5%	0.32kPa
09:00	8.7°C	12°C	14°C	-	5%	0.5kPa
10:00	9.3°C	12°C	16°C	-	0%	0.68kPa
11:00	9.9°C	13°C	18°C	-	0%	0.87kPa
12:00	10°C	13°C	19°C	-	0%	1kPa
13:00	11°C	14°C	21°C	-	1%	1.2kPa
14:00	10°C	15°C	21°C	-	7%	1.3kPa
15:00	11°C	15°C	19°C	-	7%	0.82kPa
16:00	11°C	15°C	16°C	-	6%	0.47kPa
17:00	11°C	16°C	13°C	-	5%	0.21kPa
18:00	11°C	15°C	13°C	-	9%	0.19kPa
19:00	10°C	15°C	12°C	-	13%	0.17kPa
20:00 ☾	10°C	15°C	12°C	-	17%	0.15kPa
21:00 ☾	10°C	14°C	12°C	-	13%	0.14kPa
22:00 ☾	10°C	14°C	12°C	-	10%	0.13kPa
23:00 ☾	10°C	14°C	12°C	-	7%	0.12kPa
Sun, Apr 12 Sunrise 06:41 Sunset 19:54
24:00 ☾	11°C	14°C	12°C	-	7%	0.15kPa
01:00 ☾	11°C	13°C	13°C	-	7%	0.17kPa
02:00 ☾	11°C	13°C	13°C	-	8%	0.2kPa
03:00 ☾	12°C	13°C	15°C	-	38%	0.34kPa
04:00 ☾	12°C	14°C	17°C	-	68%	0.5kPa
05:00 ☾	13°C	14°C	19°C	-	98%	0.71kPa
06:00 ☾	12°C	15°C	19°C	-	99%	0.82kPa
07:00	12°C	15°C	20°C	-	99%	0.94kPa
08:00	12°C	15°C	21°C	-	100%	1.1kPa
09:00	12°C	16°C	21°C	-	100%	1kPa

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

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