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Rule Storm Chaser

Porthcurno - Storm Chaser - Cornwall

Porthcurno, England, United Kingdom

Dramatic storm conditions — from atmospheric builds to active thunderstorms

No opportunities right now
Here’s what usually blocks matches

No Storm Chaser opportunities in the next 14 days

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Rule requirements (key thresholds)
Storm Intensity · ≥ 55.0% Cloud Drama Score · ≥ 55.0% CAPE · ≥ 1200.0J/kg Lifted Index · ≤ -2.0°C

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Storm Intensity 100% failing
CAPE 100% failing
Cloud Drama Score 79% failing

Currently

Real-time conditions
Cloud Cover100%
Wind Gusts19.4m/s
Precipitation Chance0%
Air Pressure1017.7hPa
CAPE1
Lifted Index11.3°C
Wind Gusts19.4m/s
Precipitation0.0mm

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 Atlantic storm conditions create dramatic—but photographable—conditions along Cornwall's exposed coastline. We track storm intensity, wave height, wind speed, and clearing patterns to predict when you can safely capture storm drama.

Cornwall's position jutting into the Atlantic makes it one of Britain's premier locations for storm photography. Winter Atlantic depressions bring powerful swells that create spectacular wave action against granite cliffs, while rapid weather changes mean clearing conditions often follow close behind storm systems, providing dramatic light.

What makes Cornwall special for storm photography:

  • Atlantic exposure - Unobstructed fetch means powerful wave action at exposed headlands
  • Storm focal points - Sennen Cove and Porthleven famous for dramatic wave photography
  • Historic elements - Lighthouses and mine ruins add narrative to storm scenes
  • Rapid clearing - Post-frontal clearing often produces rainbow opportunities and dramatic light

Sennen Cove near Land's End becomes a magnet for storm photographers when Atlantic swells arrive—waves can reach spectacular heights, crashing over the harbour wall. Porthleven is notorious for storm surge conditions, with massive waves flooding the historic harbour during peak storms—dramatic but requiring extreme caution. The Botallack tin mine engine houses perched on cliffs become even more dramatic when waves explode below them. Godrevy Lighthouse withstanding storm seas creates powerful compositions. Safety is paramount—our forecast helps identify conditions that are dramatic but not dangerous, tracking when the worst of storms have passed but seas remain photogenic. Always maintain safe distances, never turn your back on the sea, and be aware that "sneaker waves" can arrive unexpectedly during storm conditions.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
OR logic: one branch per group is enough
Meets requirement
Misses requirement
Time
Europe/London
Storm Intensity
≥ 55.0%
Cloud Drama Score
≥ 55.0%
CAPE
OR1·B1
≥ 1200.0J/kg
Lifted Index
OR1·B2
≤ -2.0°C
Visibility
≥ 2500.0m
Wind Gusts
≤ 22.0m/s
Mon, Apr 20
20:000%23%0J/kg11°C24135m13m/s
21:000%28%0J/kg12°C24134m14m/s
22:0017%6.8%0J/kg11°C24134m14m/s
23:000%7.1%0J/kg10°C24135m15m/s
Tue, Apr 21
24:000%8.1%0J/kg9.5°C24134m15m/s
01:0017%12%0J/kg8.9°C24134m15m/s
02:000%3.8%0J/kg8.8°C24135m15m/s
03:000%9.2%1J/kg9°C24135m15m/s
04:0018%9.5%0J/kg9.3°C24134m15m/s
05:000%74%0J/kg9.7°C24135m15m/s
06:000%55%3J/kg11°C24134m15m/s
07:0017%49%2J/kg12°C24135m15m/s
08:000%45%1J/kg13°C24134m15m/s
09:000%33%2J/kg13°C24135m15m/s
10:0016%43%3J/kg12°C24135m15m/s
11:000%31%3J/kg12°C24134m15m/s
12:000%31%7J/kg12°C24135m16m/s
13:0017%42%8J/kg12°C24135m16m/s
14:000%51%7J/kg12°C24134m16m/s
15:000%83%6J/kg12°C24134m16m/s
16:0018%57%0J/kg12°C24134m17m/s
17:000%47%0J/kg12°C24134m18m/s
18:000%46%0J/kg12°C24135m18m/s
19:0020%46%0J/kg11°C24134m19m/s
20:000%54%1J/kg11°C24134m19m/s
21:000%55%0J/kg12°C24134m21m/s
22:0019%5.9%0J/kg11°C24134m20m/s
23:000%0.7%0J/kg11°C24134m21m/s
Wed, Apr 22
24:000%2.2%0J/kg11°C24135m21m/s
01:0019%7.9%1J/kg12°C24134m20m/s
02:000%12%1J/kg12°C24135m20m/s
03:000%14%1J/kg12°C24134m21m/s
04:0019%15%0J/kg12°C24135m21m/s
05:000%63%0J/kg11°C24134m21m/s
06:000%70%0J/kg11°C24135m21m/s
07:0019%62%0J/kg11°C24134m21m/s
08:000%57%0J/kg11°C24134m21m/s
09:000%57%0J/kg11°C24134m21m/s
10:0020%51%0J/kg12°C24135m20m/s
11:000%40%0J/kg12°C24134m19m/s
12:000%40%0J/kg12°C24134m18m/s
13:0028%40%0J/kg12°C24135m17m/s
14:0011%38%0J/kg12°C24135m17m/s
15:000%41%0J/kg11°C24135m18m/s
16:0018%38%0J/kg12°C24135m17m/s
17:000%46%0J/kg12°C24135m16m/s
18:000%55%0J/kg12°C24134m17m/s
19:0018%55%0J/kg12°C24134m17m/s
20:000%59%0J/kg12°C24134m18m/s
21:000%59%0J/kg12°C24134m17m/s
22:0016%0.4%0J/kg11°C24135m18m/s
23:000%0%0J/kg11°C24135m18m/s
Thu, Apr 23
24:000%0%0J/kg11°C24135m18m/s
01:0015%0.2%0J/kg11°C24134m18m/s
02:000%1.3%0J/kg10°C24135m18m/s
03:000%7.5%0J/kg11°C24135m17m/s
04:0011%3.1%0J/kg10°C24135m16m/s
05:000%19%0J/kg11°C24135m16m/s
06:000%29%0J/kg11°C24135m17m/s
07:0013%82%0J/kg11°C24135m17m/s
08:000%71%0J/kg11°C24135m18m/s
09:000%56%0J/kg11°C24134m19m/s
10:0013%29%0J/kg11°C24135m19m/s
11:000%35%0J/kg11°C24135m19m/s
12:000%34%0J/kg11°C24135m19m/s
13:0013%40%0J/kg11°C24134m19m/s
14:000%22%0J/kg11°C24135m19m/s
15:000%25%0J/kg11°C24135m19m/s
16:0013%27%0J/kg11°C24134m19m/s
17:000%33%0J/kg11°C24135m19m/s
18:000%37%0J/kg11°C24134m19m/s
19:0013%41%0J/kg12°C24134m19m/s
20:000%43%0J/kg12°C24134m19m/s
21:000%100%0J/kg12°C24134m20m/s
22:0014%15%0J/kg12°C24134m20m/s
23:000%15%0J/kg12°C24135m19m/s
Fri, Apr 24
24:000%15%0J/kg11°C24135m19m/s
01:0015%15%0J/kg11°C24135m19m/s
02:000%0%0J/kg11°C24135m18m/s
03:000%0%0J/kg11°C24135m17m/s
04:0014%0%0J/kg11°C24135m16m/s
05:000%86%0J/kg11°C24135m16m/s
06:000%97%0J/kg11°C24135m15m/s
07:0011%91%0J/kg12°C24135m15m/s
08:000%48%0J/kg12°C24135m15m/s
09:000%41%0J/kg12°C24135m14m/s
10:009.1%14%0J/kg12°C24135m14m/s
11:000%12%0J/kg12°C24135m14m/s
12:000%9%0J/kg13°C24135m13m/s
13:0011%9%0J/kg13°C24135m13m/s
14:000%29%0J/kg13°C24135m13m/s
15:000%29%0J/kg14°C24135m13m/s
16:009.1%31%0J/kg14°C24135m13m/s
17:000%37%0J/kg13°C24135m12m/s
18:000%44%0J/kg12°C24135m12m/s
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
CAPE
J/kg
High Clouds
%
Lifted Index
°C
Low Clouds
%
Mid-Level Clouds
%
Precipitation Chance
%
Rainfall
mm
Relative Humidity
%
Showers
mm
Simulated Reflectivity
dBZ
Solar Elevation
°
Total Cloud Coverage
%
Total Precipitation
mm
Wind Shear 0-3 km
m/s
Wind Shear 0-6 km
m/s
Wind Speed
m/s
Tue, Apr 21 Sunrise 06:18 Sunset 20:25
20:00
1018hPa 1J/kg 100% 11°C 5% 100% 0% 0mm 82% 0mm -20dBZ 3.4° 100% 0mm - - 16m/s
21:00
1018hPa 0J/kg 87% 12°C 1% 92% 0% 0mm 81% 0mm -20dBZ -5.8° 99% 0mm - - 17m/s
22:00
1018hPa 0J/kg 98% 11°C 4% 100% 0% 0mm 79% 0mm -20dBZ -14° 100% 0mm 19m/s 25m/s 17m/s
23:00
1018hPa 0J/kg 100% 11°C 1% 70% 0% 0mm 78% 0mm -20dBZ -21° 100% 0mm - - 17m/s
Wed, Apr 22 Sunrise 06:18 Sunset 20:25
24:00
1017hPa 0J/kg 100% 11°C 0% 96% 0% 0mm 78% 0mm -20dBZ -25° 100% 0mm - - 17m/s
01:00
1017hPa 1J/kg 38% 12°C 1% 6% 0% 0mm 81% 0mm -20dBZ -28° 38% 0mm 21m/s 22m/s 17m/s
02:00
1017hPa 1J/kg 6% 12°C 0% 68% 8% 0mm 82% 0mm -20dBZ -27° 68% 0mm - - 17m/s
03:00
1017hPa 1J/kg 15% 12°C 0% 6% 17% 0mm 80% 0mm -20dBZ -24° 15% 0mm - - 17m/s
04:00
1017hPa 0J/kg 35% 12°C 1% 73% 25% 0mm 81% 0mm -20dBZ -19° 99% 0mm 19m/s 22m/s 17m/s
05:00
1016hPa 0J/kg 100% 11°C 1% 100% 50% 0mm 82% 0mm -20dBZ -12° 100% 0mm - - 17m/s
06:00
1016hPa 0J/kg 100% 11°C 1% 87% 75% 0mm 80% 0mm -20dBZ -3.1° 100% 0mm - - 17m/s
07:00
1017hPa 0J/kg 100% 11°C 1% 85% 100% 0mm 80% 0mm -20dBZ 6.1° 100% 0mm 18m/s 22m/s 17m/s
08:00
1017hPa 0J/kg 100% 11°C 1% 100% 74% 0mm 80% 0mm -13dBZ 16° 100% 0mm - - 16m/s
09:00
1018hPa 0J/kg 99% 11°C 14% 100% 48% 0mm 80% 0mm -5.8dBZ 25° 100% 0mm - - 16m/s
10:00
1019hPa 0J/kg 100% 12°C 16% 96% 22% 0mm 78% 0mm 1.3dBZ 34° 100% 0mm 20m/s 22m/s 15m/s
11:00
1019hPa 0J/kg 100% 12°C 76% 100% 22% 0.01mm 76% 0mm 12dBZ 42° 100% 0mm - - 14m/s
12:00
1020hPa 0J/kg 100% 12°C 100% 100% 22% 0.08mm 77% 0mm 22dBZ 49° 100% 0.13mm - - 14m/s
13:00
1020hPa 0J/kg 100% 12°C 100% 100% 22% 0.02mm 78% 0mm 32dBZ 52° 100% 0.13mm 6.4m/s 18m/s 14m/s
14:00
1020hPa 0J/kg 100% 12°C 100% 100% 15% 0.05mm 79% 0mm 30dBZ 51° 100% 0mm - - 14m/s
15:00
1020hPa 0J/kg 100% 11°C 100% 100% 7% 0mm 81% 0mm 28dBZ 47° 100% 0.06mm - - 15m/s
16:00
1021hPa 0J/kg 100% 12°C 100% 100% 0% 0.01mm 82% 0mm 26dBZ 40° 100% 0.06mm 19m/s 21m/s 14m/s
17:00
1021hPa 0J/kg 100% 12°C 100% 97% 0% 0mm 82% 0mm 11dBZ 32° 100% 0.06mm - - 13m/s
18:00
1021hPa 0J/kg 100% 12°C 100% 100% 0% 0mm 81% 0mm -4.6dBZ 22° 100% 0.06mm - - 13m/s
19:00
1021hPa 0J/kg 100% 12°C 97% 98% 0% 0mm 80% 0mm -20dBZ 13° 100% 0.06mm 18m/s 21m/s 13m/s
20:00
1021hPa 0J/kg 100% 12°C 32% 100% 0% 0mm 80% 0mm -20dBZ 3.6° 100% 0mm - - 14m/s
21:00
1022hPa 0J/kg 100% 12°C 19% 82% 0% 0mm 80% 0mm -20dBZ -5.5° 100% 0mm - - 13m/s
22:00
1022hPa 0J/kg 100% 11°C 5% 5% 0% 0mm 79% 0mm -20dBZ -14° 100% 0mm 14m/s 16m/s 13m/s
23:00
1023hPa 0J/kg 100% 11°C 5% 69% 0% 0mm 80% 0mm -20dBZ -20° 100% 0mm - - 12m/s
Thu, Apr 23 Sunrise 06:16 Sunset 20:27
24:00
1023hPa 0J/kg 100% 11°C 5% 100% 0% 0mm 81% 0mm -20dBZ -25° 100% 0mm - - 12m/s
01:00
1023hPa 0J/kg 100% 11°C 5% 100% 0% 0mm 82% 0mm -20dBZ -27° 100% 0mm 10m/s 14m/s 12m/s
02:00
1023hPa 0J/kg 100% 10°C 4% 89% 0% 0mm 85% 0mm -20dBZ -27° 100% 0mm - - 12m/s
03:00
1023hPa 0J/kg 100% 11°C 4% 5% 0% 0mm 86% 0mm -20dBZ -24° 100% 0mm - - 12m/s
04:00
1023hPa 0J/kg 100% 10°C 0% 4% 0% 0mm 86% 0mm -20dBZ -18° 100% 0mm 5.1m/s 13m/s 12m/s
05:00
1023hPa 0J/kg 100% 11°C 0% 5% 0% 0mm 86% 0mm -20dBZ -11° 100% 0mm - - 12m/s
06:00
1023hPa 0J/kg 100% 11°C 0% 5% 0% 0mm 86% 0mm -20dBZ -2.8° 100% 0mm - - 12m/s
07:00
1023hPa 0J/kg 38% 11°C 0% 5% 0% 0mm 86% 0mm -20dBZ 6.4° 38% 0mm 8m/s 14m/s 13m/s
08:00
1024hPa 0J/kg 27% 11°C 0% 5% 0% 0mm 85% 0mm -20dBZ 16° 27% 0mm - - 13m/s
09:00
1024hPa 0J/kg 19% 11°C 0% 5% 0% 0mm 84% 0mm -20dBZ 25° 19% 0mm - - 13m/s
10:00
1024hPa 0J/kg 8% 11°C 0% 5% 0% 0mm 83% 0mm -20dBZ 35° 8% 0mm 8.2m/s 14m/s 13m/s
11:00
1024hPa 0J/kg 11% 11°C 0% 5% 0% 0mm 83% 0mm -20dBZ 43° 11% 0mm - - 13m/s
12:00
1024hPa 0J/kg 12% 11°C 0% 5% 0% 0mm 82% 0mm -20dBZ 49° 12% 0mm - - 13m/s
13:00
1024hPa 0J/kg 19% 11°C 0% 1% 0% 0mm 80% 0mm -20dBZ 52° 19% 0mm 7.2m/s 14m/s 13m/s
14:00
1024hPa 0J/kg 5% 11°C 0% 0% 0% 0mm 80% 0mm -20dBZ 52° 5% 0mm - - 14m/s
15:00
1024hPa 0J/kg 5% 11°C 0% 0% 0% 0mm 80% 0mm -20dBZ 47° 5% 0mm - - 14m/s
16:00
1024hPa 0J/kg 5% 11°C 0% 0% 0% 0mm 79% 0mm -20dBZ 41° 5% 0mm 5.3m/s 11m/s 13m/s
17:00
1024hPa 0J/kg 5% 11°C 0% 0% 0% 0mm 79% 0mm -20dBZ 32° 5% 0mm - - 13m/s
18:00
1023hPa 0J/kg 5% 11°C 0% 0% 0% 0mm 78% 0mm -20dBZ 23° 5% 0mm - - 13m/s
19:00
1023hPa 0J/kg 10% 12°C 0% 2% 0% 0mm 77% 0mm -20dBZ 13° 10% 0mm 3.5m/s 12m/s 13m/s
20:00
1023hPa 0J/kg 10% 12°C 0% 3% 0% 0mm 76% 0mm -20dBZ 3.8° 10% 0mm - - 13m/s
21:00
1024hPa 0J/kg 45% 12°C 0% 17% 0% 0mm 74% 0mm -20dBZ -5.3° 45% 0mm - - 13m/s
22:00
1024hPa 0J/kg 86% 12°C 0% 77% 0% 0mm 72% 0mm -20dBZ -13° 90% 0mm 5.4m/s 16m/s 13m/s
23:00
1023hPa 0J/kg 59% 12°C 0% 89% 0% 0mm 72% 0mm -20dBZ -20° 89% 0mm - - 13m/s
Fri, Apr 24 Sunrise 06:14 Sunset 20:28
24:00
1023hPa 0J/kg 70% 11°C 0% 60% 0% 0mm 74% 0mm -20dBZ -25° 83% 0mm - - 13m/s
01:00
1023hPa 0J/kg 90% 11°C 0% 26% 0% 0mm 77% 0mm -20dBZ -27° 91% 0mm 7.2m/s 17m/s 13m/s
02:00
1023hPa 0J/kg 67% 11°C 0% 43% 0% 0mm 80% 0mm -20dBZ -27° 86% 0mm - - 13m/s
03:00
1022hPa 0J/kg 45% 11°C 0% 60% 0% 0mm 83% 0mm -20dBZ -23° 81% 0mm - - 13m/s
04:00
1022hPa 0J/kg 22% 11°C 0% 76% 0% 0mm 85% 0mm -20dBZ -18° 77% 0mm 6.8m/s 16m/s 13m/s
05:00
1022hPa 0J/kg 32% 11°C 0% 76% 0% 0mm 84% 0mm -20dBZ -11° 77% 0mm - - 13m/s
06:00
1022hPa 0J/kg 41% 11°C 0% 76% 0% 0mm 83% 0mm -20dBZ -2.5° 77% 0mm - - 13m/s
07:00
1022hPa 0J/kg 51% 12°C 0% 76% 0% 0mm 82% 0mm -20dBZ 6.7° 78% 0mm 6.4m/s 14m/s 12m/s
08:00
1022hPa 0J/kg 67% 12°C 0% 51% 0% 0mm 81% 0mm -20dBZ 16° 85% 0mm - - 12m/s
09:00
1021hPa 0J/kg 84% 12°C 0% 25% 0% 0mm 81% 0mm -20dBZ 26° 93% 0mm - - 12m/s
10:00
1021hPa 0J/kg 100% 12°C 0% 0% 0% 0mm 80% 0mm -20dBZ 35° 100% 0mm 4.9m/s 12m/s 11m/s
11:00
1021hPa 0J/kg 100% 12°C 0% 0% 0% 0mm 79% 0mm -20dBZ 43° 100% 0mm - - 10m/s
12:00
1021hPa 0J/kg 100% 13°C 0% 0% 0% 0mm 79% 0mm -20dBZ 49° 100% 0mm - - 9.3m/s
13:00
1022hPa 0J/kg 100% 13°C 0% 0% 0% 0mm 78% 0mm -20dBZ 53° 100% 0mm 5.2m/s 12m/s 8.4m/s
14:00
1022hPa 0J/kg 93% 13°C 0% 33% 0% 0mm 77% 0mm -20dBZ 52° 100% 0mm - - 8.1m/s
15:00
1022hPa 0J/kg 87% 14°C 0% 67% 0% 0mm 76% 0mm -20dBZ 48° 100% 0mm - - 7.7m/s
16:00
1022hPa 0J/kg 80% 14°C 0% 100% 0% 0mm 74% 0mm -20dBZ 41° 100% 0mm 5.6m/s 12m/s 7.3m/s
17:00
1022hPa 0J/kg 87% 13°C 0% 100% 17% 0mm 75% 0mm -20dBZ 32° 100% 0mm - - 7.4m/s
18:00
1022hPa 0J/kg 93% 12°C 0% 100% 33% 0mm 75% 0mm -20dBZ 23° 100% 0mm - - 7.4m/s
19:00
1021hPa 0J/kg 100% 12°C 0% 100% 50% 0mm 76% 0mm -20dBZ 13° 100% 0mm 5.2m/s 11m/s 7.5m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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