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Rule Cloudscapes

Ben A'an - Cloudscapes - Trossachs & Loch Lomond

Callander, Scotland, United Kingdom

Multi-layered dramatic clouds for striking sky photography

Currently

Real-time conditions
Cloud Cover100%
Wind Gusts2.1m/s
Precipitation Chance87%
Air Pressure978.6hPa

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London
Next opportunity
Dramatic Cloud Drama at Sunset
Ben A'an
Tomorrow · 19:00–20:00 · 1h window
Medium confidence
54%
☁️Cloud Drama Score85.2%
Cloud Cover: 84%
Wind Gusts: 10.0m/s
Precipitation Chance: 85%
Air Pressure: 970.3hPa
overcast weather icon
Striking Cloud Drama
Ben A'an
Fri, Apr 17 · 09:00–10:00
☁️Cloud Drama Score:75.4%
Medium
overcast weather icon
Striking Cloud Drama
Ben A'an
Sat, Apr 18 · 18:00–19:00
☁️Cloud Drama Score:75.4%
Medium
overcast weather icon
Striking Cloud Drama at Sunset
Ben A'an
Sat, Apr 18 · 19:00–20:00
☁️Cloud Drama Score:78%
Medium
overcast weather icon
Striking Cloud Drama at Sunrise
Ben A'an
Sun, Apr 19 · 06:00–07:00
☁️Cloud Drama Score:82.6%
Medium
overcast weather icon
Striking Cloud Drama
Ben A'an
Tue, Apr 21 · 08:00–10:00
☁️Cloud Drama Score:78-81.9%
Low

What this forecast looks for

Plain-language explanation from the rule

This forecast predicts when dramatic cloud formations will create compelling skies above the Trossachs lochs and mountains. We track atmospheric conditions, weather fronts, and wind patterns to identify when interesting clouds will add visual drama to your Highland landscape photography.

The Trossachs' position where Lowland Scotland meets the Highlands produces varied weather systems creating diverse cloud formations. Mountains force air upward creating orographic clouds, while the transition zone produces dramatic frontal systems.

What makes the Trossachs special for cloudscape photography:

  • Mountain interaction - Ben Venue and Ben A'an creating orographic cloud formations
  • Weather transitions - Highland-Lowland boundary producing varied cloud systems
  • Loch reflections - Dramatic skies doubled by reflection in calm water
  • Elevated viewpoints - Ben A'an summit for panoramic cloudscape compositions over multiple lochs

Ben A'an's summit provides the premier cloudscape vantage point—360-degree views encompass Loch Katrine, Loch Achray, Loch Lomond, and surrounding mountains beneath unfolding sky drama. The Trossachs Pier captures orographic clouds forming over Ben Venue's summit. Loch Venachar allows wide compositions capturing sky drama over the mountains. Spring and autumn (March-May, September-November) bring the most varied cloud conditions. Post-frontal clearing after rain systems produces dramatic cloudscapes with sunbeams and rainbow opportunities.

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72-hour requirements breakdown

What passed or failed, hour by hour
2matching hours in the next 86 hoursJump to next match
OR logic: one branch per group is enough
Meets requirement
Misses requirement
Time
Europe/London
Cloud Drama Score
≥ 75.0%
Low Clouds
≥ 20.0%
Mid-Level Clouds
OR1·B1
≥ 30.0%
High Clouds
OR1·B2
≥ 40.0%
Visibility
≥ 5000.0m
Tue, Apr 14
05:009.9%2.3%0%0%24135m
06:009.5%4.7%0%0%24134m
07:008.4%4.4%0%0%24135m
08:007.9%2.2%0%0%24135m
09:009.6%2.1%0.7%0%24134m
10:0018%0.1%0%0%24135m
11:0022%3.9%0%0%24134m
12:0062%8.2%5%40%24134m
13:0073%27%5%54%24135m
14:0044%88%67%100%24135m
15:0051%100%78%100%24134m
16:0051%100%100%100%24134m
17:0051%100%100%100%12723m
18:0060%100%100%100%8225m
19:0060%100%100%100%12667m
20:0064%100%100%100%20685m
21:0064%100%100%100%20156m
22:000%100%100%100%24134m
23:000%100%100%100%9222m
Wed, Apr 15
24:000%100%100%100%8592m
01:000%100%100%100%8468m
02:000%100%100%100%7917m
03:000%100%100%100%3121m
04:000%100%100%100%617m
05:0055%100%100%100%464m
06:0064%100%68%100%357m
07:0065%100%63%100%322m
08:0041%100%4.5%100%289m
09:0060%100%70%100%490m
10:0072%100%35%25%6273m
11:0031%100%2.8%4.9%6589m
12:0047%100%0%25%8511m
13:0050%100%89%100%19234m
14:0061%100%100%41%15239m
15:0057%84%100%0%11047m
16:0050%100%100%0%10242m
17:0050%100%100%0%6574m
18:0067%80%100%2.1%9456m
19:0085%84%35%0%8518m
20:0078%77%6.1%0%13237m
21:0071%95%32%0%15231m
22:002.3%100%44%0%15160m
23:007.9%100%100%0%23573m
Thu, Apr 16
24:000.2%100%100%0%4546m
01:001.9%99%100%0%13864m
02:002.8%100%59%0%19610m
03:004.2%100%9%0%24134m
04:003%100%5%0%17747m
05:0027%100%5%0%21572m
06:0068%100%68%0%15729m
07:0049%93%5%0%21931m
08:0073%60%2.3%0%24135m
09:0044%99%5%0%22063m
10:0039%97%2.1%0%21833m
11:0042%95%0%0%24134m
12:0054%64%0%0%24134m
13:0033%95%0%0%17620m
14:0042%72%0%0%19966m
15:0059%39%0%0%21470m
16:0052%27%0%0%24134m
17:0035%8.2%0%0.9%24134m
18:0029%4.7%0%4.7%24135m
19:0037%4.8%0%5%24134m
20:0075%5%0%29%24135m
21:0031%5%0%100%24134m
22:0044%12%0.6%100%24135m
23:008.4%59%98%100%24135m
Fri, Apr 17
24:000%97%100%100%24134m
01:000%83%100%100%24135m
02:000%88%100%100%22193m
03:000%94%100%100%20251m
04:000%100%100%100%18310m
05:0058%100%99%100%20252m
06:0070%100%98%100%22193m
07:0070%100%98%100%24135m
08:0065%100%98%76%24135m
09:0075%100%98%51%24135m
10:0072%100%99%27%24135m
11:0064%100%99%51%24135m
12:0045%100%100%76%24135m
13:0045%100%100%100%24135m
14:0045%100%95%67%24085m
15:0059%100%91%33%24035m
16:0048%100%86%0%23985m
17:0048%97%57%0%23514m
18:0060%94%29%0%23042m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.

What does Cloud Drama Score 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
Air Pressure
hPa
High Clouds
%
Mid-Level Clouds
%
Precipitation Chance
%
Relative Humidity
%
Solar Elevation
°
Total Cloud Coverage
%
Wind Gusts
m/s
Wind Speed
m/s
Tue, Apr 14 Sunrise 06:13 Sunset 20:21
20:00
979hPa 100% 100% 87% 98% 2.4° 100% 2.1m/s 1.6m/s
21:00
979hPa 100% 100% 82% 98% -5.6° 100% 1.9m/s 1.6m/s
22:00
978hPa 100% 100% 76% 98% -13° 100% 2m/s 1.5m/s
23:00
978hPa 100% 100% 84% 98% -18° 100% 2m/s 1.6m/s
Wed, Apr 15 Sunrise 06:13 Sunset 20:21
24:00
978hPa 100% 100% 92% 98% -22° 100% 2.1m/s 1.5m/s
01:00
977hPa 100% 100% 100% 98% -24° 100% 2.4m/s 1.6m/s
02:00
976hPa 100% 100% 97% 99% -23° 100% 2.8m/s 1.8m/s
03:00
976hPa 100% 100% 94% 99% -21° 100% 2.6m/s 1.8m/s
04:00
975hPa 100% 100% 91% 99% -16° 100% 2.3m/s 1.6m/s
05:00
975hPa 100% 100% 94% 99% -9.6° 100% 2.2m/s 1.5m/s
06:00
974hPa 100% 68% 97% 99% -2.1° 100% 2m/s 1.5m/s
07:00
974hPa 100% 63% 100% 99% 5.9° 100% 2.1m/s 1.5m/s
08:00
974hPa 100% 4% 100% 99% 14° 100% 1.9m/s 1.3m/s
09:00
974hPa 100% 70% 100% 99% 22° 100% 3m/s 1.4m/s
10:00
973hPa 25% 35% 99% 98% 30° 100% 7m/s 1.9m/s
11:00
973hPa 5% 3% 100% 98% 37° 100% 12m/s 3.7m/s
12:00
973hPa 25% 0% 100% 96% 41° 100% 13m/s 4.1m/s
13:00
972hPa 100% 89% 100% 88% 44° 100% 14m/s 6.3m/s
14:00
972hPa 41% 100% 90% 93% 43° 100% 11m/s 4.7m/s
15:00
972hPa 0% 100% 81% 89% 40° 100% 10m/s 4.7m/s
16:00
971hPa 0% 100% 71% 87% 34° 100% 10m/s 5.8m/s
17:00
971hPa 0% 100% 76% 88% 27° 100% 10m/s 5.2m/s
18:00
971hPa 2% 100% 80% 88% 19° 100% 10m/s 4.6m/s
19:00
970hPa 0% 35% 85% 88% 11° 84% 10m/s 5m/s
20:00
971hPa 0% 6% 77% 90% 2.6° 77% 12m/s 5.6m/s
21:00
971hPa 0% 32% 70% 93% -5.3° 95% 12m/s 4.9m/s
22:00
971hPa 0% 44% 62% 90% -12° 100% 11m/s 5.4m/s
23:00
970hPa 0% 100% 68% 92% -18° 100% 9.5m/s 4.3m/s
Thu, Apr 16 Sunrise 06:11 Sunset 20:23
24:00
969hPa 0% 100% 75% 96% -22° 100% 10m/s 3.6m/s
01:00
970hPa 0% 100% 81% 95% -24° 100% 13m/s 6.6m/s
02:00
970hPa 0% 59% 69% 94% -23° 100% 12m/s 5.3m/s
03:00
970hPa 0% 9% 58% 94% -20° 100% 11m/s 5.2m/s
04:00
970hPa 0% 5% 46% 94% -16° 100% 12m/s 6.9m/s
05:00
971hPa 0% 5% 58% 95% -9.3° 100% 11m/s 5.9m/s
06:00
971hPa 0% 68% 69% 94% -1.8° 100% 14m/s 6.3m/s
07:00
972hPa 0% 5% 81% 92% 6.3° 92% 14m/s 7.3m/s
08:00
973hPa 0% 2% 82% 89% 14° 60% 13m/s 7.5m/s
09:00
974hPa 0% 5% 83% 85% 23° 99% 13m/s 7.6m/s
10:00
975hPa 0% 2% 84% 86% 30° 97% 12m/s 6.9m/s
11:00
976hPa 0% 0% 86% 86% 37° 95% 13m/s 7m/s
12:00
977hPa 0% 0% 88% 84% 42° 64% 12m/s 6.8m/s
13:00
977hPa 0% 0% 91% 78% 44° 95% 12m/s 8m/s
14:00
978hPa 0% 0% 69% 80% 43° 72% 12m/s 7.4m/s
15:00
979hPa 0% 0% 46% 75% 40° 39% 12m/s 7.7m/s
16:00
979hPa 0% 0% 24% 72% 34° 27% 11m/s 7.1m/s
17:00
980hPa 1% 0% 23% 70% 27° 8% 9.7m/s 6.3m/s
18:00
980hPa 5% 0% 23% 72% 19° 5% 8.8m/s 5m/s
19:00
981hPa 5% 0% 22% 76% 11° 5% 7.2m/s 2.9m/s
20:00
982hPa 29% 0% 30% 85% 2.9° 29% 1.4m/s 1.5m/s
21:00
982hPa 100% 0% 37% 89% -5° 100% 0.91m/s 0.89m/s
22:00
983hPa 100% 1% 45% 90% -12° 100% 0.7m/s 0.68m/s
23:00
983hPa 100% 98% 54% 90% -18° 100% 0.32m/s 0.25m/s
Fri, Apr 17 Sunrise 06:08 Sunset 20:25
24:00
983hPa 100% 100% 62% 88% -21° 100% 0.92m/s 0.98m/s
01:00
983hPa 100% 100% 71% 87% -23° 100% 1.1m/s 1.2m/s
02:00
987hPa 100% 100% 66% 88% -23° 100% 4.4m/s 2.1m/s
03:00
992hPa 100% 100% 61% 89% -20° 100% 7.6m/s 3.1m/s
04:00
997hPa 100% 100% 56% 90% -15° 100% 11m/s 4m/s
05:00
997hPa 100% 99% 68% 89% -8.9° 100% 11m/s 4.3m/s
06:00
997hPa 100% 98% 79% 89% -1.4° 100% 11m/s 4.6m/s
07:00
996hPa 100% 98% 90% 88% 6.6° 100% 11m/s 4.9m/s
08:00
996hPa 76% 98% 85% 89% 15° 100% 11m/s 4.8m/s
09:00
996hPa 51% 98% 79% 90% 23° 100% 11m/s 4.7m/s
10:00
996hPa 27% 98% 74% 90% 31° 100% 11m/s 4.6m/s
11:00
996hPa 51% 99% 78% 90% 37° 100% 10m/s 4.3m/s
12:00
995hPa 76% 100% 82% 90% 42° 100% 10m/s 4.1m/s
13:00
995hPa 100% 100% 86% 91% 44° 100% 9.9m/s 3.8m/s
14:00
995hPa 67% 95% 87% 90% 44° 100% 11m/s 4.3m/s
15:00
994hPa 33% 91% 87% 89% 40° 100% 11m/s 4.9m/s
16:00
994hPa 0% 86% 87% 88% 35° 100% 12m/s 5.4m/s
17:00
994hPa 0% 57% 87% 88% 27° 97% 11m/s 4.9m/s
18:00
994hPa 0% 29% 86% 89% 19° 94% 10m/s 4.4m/s
19:00
994hPa 0% 0% 86% 90% 11° 92% 9.8m/s 3.9m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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