Skip to content
✨ New: PhotoWeather is now available on iOS and Android
PhotoWeather
Get started
More Morning Frost in Trossachs & Loch Lomond
Create your own alerts
Rule Morning Frost

Ben A'an - Morning Frost - Trossachs & Loch Lomond

Callander, Scotland, United Kingdom

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

Get notified
Free alerts · takes 30 seconds
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
Wind Speed 96% failing
Time Window 88% failing

Currently

Real-time conditions
Frost Probability
1%
Soil Temperature6.9°C
Dew Point5.0°C (moderate dew point)
Wind Speed4.0m/s (calm conditions)
Cloud Cover100%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

No opportunities in the next 10 days

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

What this forecast looks for

Plain-language explanation from the rule

This forecast identifies when frost conditions will transform the Trossachs landscape into a winter wonderland. We track overnight temperatures, humidity, and wind to predict when clear, calm nights will produce photogenic frost—hoar frost coating vegetation, ice crystals along shorelines, and frozen lochs creating winter magic.

The Trossachs' Highland fringe position means genuine winter cold while remaining accessible. The combination of lochs, forest, and mountains creates varied frost opportunities, from frozen shorelines to summit hoar frost on Ben A'an.

What makes the Trossachs special for frost photography:

  • Loch shorelines - Ice formations at water's edge at Loch Ard and Loch Achray
  • Forest frost - Native oak and birch woodland coated in hoar frost creating fairy-tale scenes
  • Mountain hoar frost - Ben A'an summit vegetation transformed by ice crystal deposits
  • Waterfall ice - Bracklinn Falls near Callander with ice formations and icicles

Loch Ard's forested shoreline after a hard frost creates magical scenes—oak trees coated in hoar frost, ice crystals along the water's edge, frozen grasses catching low winter sunlight. Ben A'an's summit on frosty mornings combines hoar frost with panoramic views across frozen landscape. Bracklinn Falls develops impressive ice formations during cold spells. Best frost photography occurs December-February during high-pressure systems. Timing is critical—frost is most photogenic at sunrise before sun melts the crystals.

Create your own Morning Frost alerts

Get notified when these conditions match at your own locations.

Get this template

72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 93 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Wed, Apr 15
05:00✓15%1.6m/s
06:00✓15%1.5m/s
07:00✓15%1.5m/s
08:00✕13%1.7m/s
09:00✕13%2.2m/s
10:00✕1%3.5m/s
11:00✕0.8%4.4m/s
12:00✕1.2%5.5m/s
13:00✕1.3%6.1m/s
14:00✕1%4m/s
15:00✕0.8%5.1m/s
16:00✕1.5%4.4m/s
17:00✕1.7%2.8m/s
18:00✕1.7%2.9m/s
19:00✕1.5%4.7m/s
20:00✕2.4%3.9m/s
21:00✕1.6%2.6m/s
22:00✕1.2%2.5m/s
23:00✕1.2%2.7m/s
Thu, Apr 16
24:00✕1%3.2m/s
01:00✕1.2%4.7m/s
02:00✕0.8%4.7m/s
03:00✕1%4m/s
04:00✕0.6%5.9m/s
05:00✓1%3.6m/s
06:00✓1%3.2m/s
07:00✓1.2%4.4m/s
08:00✕1.3%7.2m/s
09:00✕1.3%6.9m/s
10:00✕1.3%7.1m/s
11:00✕1.7%6.8m/s
12:00✕2.6%8m/s
13:00✕2.7%7.4m/s
14:00✕2.6%7.2m/s
15:00✕2.6%6.2m/s
16:00✕2.8%5m/s
17:00✕2.8%4.5m/s
18:00✕2.8%4.5m/s
19:00✕1.5%4.4m/s
20:00✕1.7%4.2m/s
21:00✕1.5%4.6m/s
22:00✕1.4%2.8m/s
23:00✕1.8%1.4m/s
Fri, Apr 17
24:00✕1.4%1.7m/s
01:00✕1.2%1.8m/s
02:00✕1.2%2.2m/s
03:00✕1.2%2.6m/s
04:00✕1%3m/s
05:00✓1%3.3m/s
06:00✓1%3.4m/s
07:00✓1%3.4m/s
08:00✕1%3.8m/s
09:00✕0.8%4.4m/s
10:00✕0.8%4.9m/s
11:00✕0.8%4.5m/s
12:00✕1%6.6m/s
13:00✕1%6.6m/s
14:00✕1.4%7.1m/s
15:00✕1.7%8.2m/s
16:00✕3%8.4m/s
17:00✕2.9%7.5m/s
18:00✕3.7%7.7m/s
19:00✕2.4%7.1m/s
20:00✕2%6.1m/s
21:00✕2.7%4.5m/s
22:00✕2.7%4.5m/s
23:00✕1.7%5.8m/s
Sat, Apr 18
24:00✕1%6.5m/s
01:00✕1%6.4m/s
02:00✕1%6m/s
03:00✕1%6.3m/s
04:00✕1%6.4m/s
05:00✓0.6%5.7m/s
06:00✓1.2%5.6m/s
07:00✓1.2%4.9m/s
08:00✕2.8%5.2m/s
09:00✕2.7%5.6m/s
10:00✕0%6m/s
11:00✕0%5.7m/s
12:00✕0%5.4m/s
13:00✕0%5.1m/s
14:00✕0%4.2m/s
15:00✕0%3.3m/s
16:00✕0%2.4m/s
17:00✕3.4%2.3m/s
18:00✕3.1%2.2m/s
19:00✕3.1%2.1m/s
20:00✕3.1%2m/s
21:00✕3.1%1.9m/s
22:00✕2.7%1.8m/s
23:00✕22%1.5m/s
Sun, Apr 19
24:00✕16%1.3m/s
01:00✕15%1m/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/London
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Thu, Apr 16 Sunrise 06:08 Sunset 20:25
03:00 ☾
5°C 6.9°C 5.9°C - 100% 0.06kPa
04:00 ☾
4.8°C 6.7°C 5.8°C - 100% 0.06kPa
05:00 ☾
4.6°C 6.6°C 5.1°C - 100% 0.03kPa
06:00 ☾
4.9°C 6.4°C 5.5°C - 100% 0.04kPa
07:00
4.8°C 6.3°C 5.8°C - 100% 0.06kPa
08:00
4.4°C 6.3°C 6.1°C - 100% 0.11kPa
09:00
4.1°C 6.2°C 6.1°C - 100% 0.12kPa
10:00
4.1°C 6.2°C 6.3°C - 96% 0.13kPa
11:00
4.7°C 6.2°C 7.5°C - 45% 0.18kPa
12:00
5°C 6.5°C 9.2°C - 85% 0.29kPa
13:00
5.2°C 6.6°C 9.3°C - 62% 0.28kPa
14:00
4.6°C 7°C 10°C - 94% 0.39kPa
15:00
4.5°C 7.2°C 10°C - 100% 0.39kPa
16:00
4.8°C 7.3°C 9.6°C - 100% 0.33kPa
17:00
5.2°C 7.4°C 9.6°C - 99% 0.31kPa
18:00
5.8°C 7.5°C 9.5°C - 100% 0.27kPa
19:00
6.1°C 7.5°C 8.7°C - 100% 0.19kPa
20:00
6.1°C 7.5°C 8°C - 100% 0.13kPa
21:00 ☾
5.6°C 7.4°C 7.4°C - 100% 0.12kPa
22:00 ☾
5.2°C 7.2°C 6.7°C - 100% 0.1kPa
23:00 ☾
5.4°C 7.1°C 6.5°C - 100% 0.07kPa
Fri, Apr 17 Sunrise 06:08 Sunset 20:25
24:00 ☾
5.7°C 7°C 6.2°C - 100% 0.04kPa
01:00 ☾
6°C 6.9°C 6.3°C - 100% 0.02kPa
02:00 ☾
6.3°C 6.8°C 6.6°C - 100% 0.02kPa
03:00 ☾
6.7°C 6.8°C 7.1°C - 100% 0.03kPa
04:00 ☾
6.7°C 6.7°C 7.2°C - 100% 0.03kPa
05:00 ☾
6.9°C 6.7°C 7.4°C - 100% 0.03kPa
06:00 ☾
6.8°C 6.7°C 7.4°C - 100% 0.04kPa
07:00
6.8°C 6.7°C 7.4°C - 100% 0.03kPa
08:00
7°C 6.7°C 7.5°C - 100% 0.03kPa
09:00
6.9°C 6.7°C 7.6°C - 100% 0.04kPa
10:00
6.9°C 6.7°C 7.8°C - 100% 0.06kPa
11:00
7.1°C 6.7°C 7.6°C - 100% 0.03kPa
12:00
7.4°C 6.7°C 8.4°C - 96% 0.07kPa
13:00
7.3°C 6.8°C 8.5°C - 100% 0.09kPa
14:00
7.2°C 7°C 8.9°C - 72% 0.12kPa
15:00
7.4°C 7.2°C 10°C - 55% 0.2kPa
16:00
7.3°C 7.5°C 10°C - 48% 0.23kPa
17:00
7.1°C 7.7°C 10°C - 18% 0.23kPa
18:00
6.3°C 7.8°C 9.4°C - 19% 0.22kPa
19:00
5.7°C 7.8°C 8.3°C - 16% 0.18kPa
20:00
5°C 7.6°C 7.3°C - 28% 0.15kPa
21:00 ☾
4.6°C 7.4°C 6.2°C - 8% 0.1kPa
22:00 ☾
4.3°C 7.2°C 5.7°C - 5% 0.09kPa
23:00 ☾
4°C 7°C 5.6°C - 34% 0.09kPa
Sat, Apr 18 Sunrise 06:06 Sunset 20:28
24:00 ☾
3.9°C 6.8°C 5.4°C - 100% 0.09kPa
01:00 ☾
4.3°C 6.6°C 5.7°C - 92% 0.08kPa
02:00 ☾
4.4°C 6.5°C 5.6°C - 98% 0.08kPa
03:00 ☾
4.2°C 6.4°C 5.6°C - 100% 0.09kPa
04:00 ☾
4.4°C 6.3°C 5.6°C - 100% 0.08kPa
05:00 ☾
4.8°C 6.2°C 5.6°C - 100% 0.05kPa
06:00 ☾
5°C 6.1°C 6.3°C - 100% 0.08kPa
07:00
5.3°C 6.1°C 6.8°C - 100% 0.1kPa
08:00
4.6°C 7°C 7.9°C - 88% 0.22kPa
09:00
3.7°C 7.9°C 9°C - 76% 0.35kPa
10:00
2.5°C 8.9°C 10°C - 64% 0.51kPa
11:00
2.7°C 8.9°C 9.7°C - 44% 0.46kPa
12:00
2.9°C 8.9°C 9.2°C - 25% 0.41kPa
13:00
3.1°C 9°C 8.6°C - 5% 0.36kPa
14:00
3.1°C 8.7°C 7.4°C - 5% 0.27kPa
15:00
3°C 8.4°C 6.2°C - 5% 0.19kPa
16:00
2.8°C 8.1°C 5°C - 5% 0.12kPa
17:00
2.7°C 7.8°C 4.6°C - 5% 0.11kPa
18:00
2.6°C 7.5°C 4.3°C - 5% 0.09kPa
19:00
2.6°C 7.1°C 3.9°C - 5% 0.07kPa
20:00
2.5°C 6.8°C 3.6°C - 5% 0.06kPa
21:00 ☾
2.3°C 6.5°C 3.3°C - 5% 0.05kPa
22:00 ☾
2.2°C 6.2°C 3°C - 5% 0.04kPa
23:00 ☾
2.2°C 5.9°C 3°C - 35% 0.04kPa
Sun, Apr 19 Sunrise 06:03 Sunset 20:30
24:00 ☾
2.2°C 5.6°C 3.1°C - 65% 0.05kPa
01:00 ☾
2.2°C 5.3°C 3.1°C - 96% 0.05kPa
02:00 ☾
2.7°C 5.5°C 4.9°C - 66% 0.12kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

Get Notified of Opportunities

Create your own custom alerts for this location and more.

Create Free Account