Rule Storm Chaser

Storm Chaser Forecast for Arnarstapi, Iceland Coast

Hellnar, West, Iceland

Arnarstapi’s eroded basalt coast forms arches, columned coves, and nesting ledges immediately below the village. The natural stone bridge at Gatklettur provides an intimate frame, while clear inland views rise to the ice-capped Snæfellsjökull cone.

16 matching opportunities in the 14-day forecast.

Hourly forecast scores

Forecast valid from Oct 22, 2026, 9:00 PM UTC (one hour; not an observation)

Storm Intensity

12%

CAPE130

Lifted Index4.2°C

Wind Gusts5.5m/s

Precipitation0.0mm

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Reykjavik

First upcoming window

Weak Storm

Arnarstapi

Thu, Oct 29 · 03:00–04:00 · 1h window

Low confidence

29%

⛈️Storm Intensity42%

CAPE: 10

Lifted Index: 11.7°C

Wind Gusts: 14.5m/s

Precipitation: 0.5mm

Weak Storm

Arnarstapi

Thu, Oct 29 · 06:00–07:00

⛈️Storm Intensity:43%

Low

Weak Storm at Sunrise

Arnarstapi

Thu, Oct 29 · 09:00–10:00

⛈️Storm Intensity:43%

Low

Weak Storm

Arnarstapi

Thu, Oct 29 · 12:00–13:00

⛈️Storm Intensity:42%

Low

Weak Storm at Dusk

Arnarstapi

Thu, Oct 29 · 18:00–19:00

⛈️Storm Intensity:42%

Low

Weak Storm

Arnarstapi

Thu, Oct 29 · 21:00–22:00

⛈️Storm Intensity:46%

Low

Weak Storm

Arnarstapi

Fri, Oct 30 · 24:00–01:00

⛈️Storm Intensity:44%

Low

+9 more windows in the next 14 days

72-hour requirements breakdown

When available, this detailed table covers only the stated 72-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Atlantic/Reykjavik.

Requirements breakdown is temporarily unavailable or expired. This does not mean no opportunities.

Supporting forecast inputs

Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.

Forecast time (Atlantic/Reykjavik)	Air Pressure	CAPE	Convective Precip Fraction	Lifted Index	Precipitation Chance	Rainfall	Showers	Simulated Reflectivity	Total Precipitation	Visibility	Wind Gusts	Wind Shear 0-3 km	Wind Shear 0-6 km	Wind Speed
Thu, Oct 22, 2026Sunrise 08:49 · Sunset 17:47
21:00 Night	991hPa	130J/kg	0.03fraction	4.2°C	61%	0mm	0mm	-20dBZ	0mm	50000m	5.5m/s	3.2m/s	5.6m/s	2.6m/s
22:00 Night	991hPa	150J/kg	0.09fraction	4.3°C	54%	0.3mm	0mm	-18dBZ	0.3mm	5100m	6m/s	Unavailable	Unavailable	4.3m/s
23:00 Night	991hPa	50J/kg	0.15fraction	4.5°C	50%	0mm	0mm	-16dBZ	0mm	5660m	6.8m/s	Unavailable	Unavailable	3.9m/s
Fri, Oct 23, 2026Sunrise 08:52 · Sunset 17:43
24:00 Night	992hPa	60J/kg	0.21fraction	4.7°C	49%	0mm	0mm	-14dBZ	0mm	50000m	5.2m/s	3.1m/s	5.7m/s	1.8m/s
01:00 Night	992hPa	170J/kg	0.14fraction	4.7°C	52%	0mm	0mm	-16dBZ	0mm	50000m	3.5m/s	Unavailable	Unavailable	2.4m/s
02:00 Night	992hPa	150J/kg	0.07fraction	4.6°C	59%	0mm	0mm	-18dBZ	0mm	50000m	5.1m/s	Unavailable	Unavailable	2.5m/s
03:00 Night	993hPa	130J/kg	0fraction	4.5°C	63%	0.1mm	0mm	-20dBZ	0.1mm	18440m	3.6m/s	1.8m/s	3.8m/s	2.5m/s
04:00 Night	993hPa	110J/kg	0.17fraction	4.5°C	62%	0.3mm	0mm	-20dBZ	0.3mm	50000m	4.2m/s	Unavailable	Unavailable	2.6m/s
05:00 Night	993hPa	190J/kg	0.33fraction	4.8°C	59%	0mm	0mm	-20dBZ	0mm	50000m	4m/s	Unavailable	Unavailable	2.4m/s
06:00 Night	993hPa	150J/kg	0.5fraction	4.7°C	57%	0mm	0mm	-20dBZ	0mm	50000m	3.9m/s	0.98m/s	2.7m/s	2.8m/s
07:00 Night	993hPa	100J/kg	0.42fraction	4.6°C	57%	0mm	0mm	-20dBZ	0mm	50000m	3.4m/s	Unavailable	Unavailable	1.6m/s
08:00 Night	994hPa	70J/kg	0.35fraction	4.4°C	58%	0mm	0mm	-20dBZ	0mm	10400m	3.5m/s	Unavailable	Unavailable	2.4m/s
09:00	994hPa	70J/kg	0.28fraction	4.2°C	57%	0.3mm	0mm	-20dBZ	0.3mm	6040m	3.4m/s	1.1m/s	1m/s	2.2m/s
10:00	994hPa	110J/kg	0.42fraction	4.1°C	51%	0.3mm	0mm	-20dBZ	0.3mm	13160m	3.4m/s	Unavailable	Unavailable	2.5m/s
11:00	994hPa	80J/kg	0.56fraction	4°C	44%	0mm	0mm	-20dBZ	0mm	50000m	4.1m/s	Unavailable	Unavailable	3m/s
12:00	994hPa	80J/kg	0.71fraction	3.8°C	39%	0mm	0mm	-20dBZ	0mm	22400m	5.2m/s	1.6m/s	3.1m/s	3.9m/s
13:00	994hPa	80J/kg	0.74fraction	3.8°C	41%	0.1mm	0mm	-20dBZ	0.1mm	25360m	5.4m/s	Unavailable	Unavailable	3m/s
14:00	994hPa	50J/kg	0.77fraction	3.9°C	46%	0mm	0mm	-20dBZ	0mm	29660m	4.3m/s	Unavailable	Unavailable	2.3m/s
15:00	993hPa	40J/kg	0.8fraction	3.7°C	49%	0.1mm	0mm	-20dBZ	0.1mm	19060m	5.3m/s	2.2m/s	4.1m/s	3.8m/s
16:00	993hPa	30J/kg	0.72fraction	3.6°C	47%	0.2mm	0mm	-20dBZ	0.2mm	26200m	5.2m/s	Unavailable	Unavailable	3.5m/s
17:00	993hPa	120J/kg	0.63fraction	3.5°C	44%	0mm	0mm	-20dBZ	0mm	50000m	6.7m/s	Unavailable	Unavailable	3.8m/s
18:00 Night	993hPa	120J/kg	0.55fraction	3.6°C	41%	0mm	0mm	-20dBZ	0mm	50000m	5.1m/s	3m/s	5.9m/s	1.3m/s
19:00 Night	992hPa	70J/kg	0.7fraction	3.8°C	41%	0.3mm	0mm	-20dBZ	0.3mm	5400m	3m/s	Unavailable	Unavailable	1.7m/s
20:00 Night	992hPa	80J/kg	0.85fraction	3.8°C	43%	0.1mm	0mm	-20dBZ	0.1mm	50000m	3.4m/s	Unavailable	Unavailable	2.6m/s
21:00 Night	992hPa	120J/kg	1fraction	4°C	43%	0mm	0mm	-20dBZ	0mm	50000m	3.4m/s	3.1m/s	7m/s	2.6m/s
22:00 Night	991hPa	110J/kg	0.67fraction	4.1°C	41%	0mm	0mm	-20dBZ	0mm	50000m	4.7m/s	Unavailable	Unavailable	3.4m/s
23:00 Night	990hPa	20J/kg	0.33fraction	4.1°C	38%	0.1mm	0mm	-20dBZ	0.1mm	5180m	5.4m/s	Unavailable	Unavailable	3.6m/s
Sat, Oct 24, 2026Sunrise 08:55 · Sunset 17:40
24:00 Night	990hPa	100J/kg	0fraction	4.1°C	35%	0.8mm	0mm	-20dBZ	0.9mm	50000m	7.4m/s	2.5m/s	6.8m/s	5.4m/s
01:00 Night	989hPa	20J/kg	0fraction	4°C	31%	0mm	0mm	-20dBZ	0mm	50000m	7.3m/s	Unavailable	Unavailable	3.4m/s
02:00 Night	989hPa	0J/kg	0fraction	4.1°C	26%	0mm	0mm	-20dBZ	0mm	32020m	4.7m/s	Unavailable	Unavailable	3m/s
03:00 Night	988hPa	0J/kg	0fraction	4.3°C	22%	0mm	0mm	-20dBZ	0mm	50000m	4m/s	3m/s	7m/s	2.8m/s
04:00 Night	987hPa	0J/kg	0fraction	4.1°C	18%	0mm	0mm	-20dBZ	0mm	50000m	3.9m/s	Unavailable	Unavailable	3.1m/s
05:00 Night	986hPa	0J/kg	0fraction	4.2°C	15%	0mm	0mm	-20dBZ	0mm	36900m	3.9m/s	Unavailable	Unavailable	2.6m/s
06:00 Night	986hPa	0J/kg	0fraction	4.1°C	12%	0mm	0mm	-20dBZ	0mm	40020m	4.8m/s	3.6m/s	8.9m/s	3.8m/s
07:00 Night	986hPa	0J/kg	0fraction	4.1°C	10%	0mm	0mm	-18dBZ	0mm	50000m	9.1m/s	Unavailable	Unavailable	7.1m/s
08:00 Night	986hPa	0J/kg	0fraction	4.2°C	9%	0mm	0mm	-15dBZ	0mm	35000m	9.4m/s	Unavailable	Unavailable	6.9m/s
09:00	985hPa	0J/kg	0fraction	4.3°C	8%	0mm	0mm	-13dBZ	0mm	50000m	9.4m/s	4.4m/s	11m/s	7.3m/s
10:00	985hPa	0J/kg	0fraction	4.4°C	5%	0mm	0mm	-9.5dBZ	0mm	28520m	12m/s	Unavailable	Unavailable	8.6m/s
11:00	985hPa	0J/kg	0fraction	4.3°C	2%	0mm	0mm	-6.1dBZ	0mm	27600m	13m/s	Unavailable	Unavailable	9.4m/s
12:00	985hPa	0J/kg	0fraction	4.5°C	0%	0mm	0mm	-2.6dBZ	0mm	50000m	13m/s	9.5m/s	13m/s	8.7m/s
13:00	985hPa	0J/kg	0fraction	4.6°C	0%	0mm	0mm	-1.5dBZ	0mm	30520m	12m/s	Unavailable	Unavailable	8.1m/s
14:00	985hPa	0J/kg	0fraction	4.6°C	1%	0mm	0mm	-0.4dBZ	0mm	50000m	11m/s	Unavailable	Unavailable	7.9m/s
15:00	985hPa	0J/kg	0fraction	4.9°C	2%	0mm	0mm	0.72dBZ	0mm	31820m	11m/s	9.7m/s	14m/s	7.7m/s
16:00	986hPa	0J/kg	0.03fraction	5.1°C	1%	0mm	0mm	-3dBZ	0mm	36060m	11m/s	Unavailable	Unavailable	6.9m/s
17:00	986hPa	0J/kg	0.06fraction	5.2°C	0%	0mm	0mm	-6.7dBZ	0mm	35420m	10m/s	Unavailable	Unavailable	7.4m/s
18:00 Night	987hPa	0J/kg	0.1fraction	5.8°C	0%	0mm	0mm	-10dBZ	0mm	32500m	9.8m/s	11m/s	16m/s	6.7m/s
19:00 Night	987hPa	0J/kg	0.06fraction	6.4°C	2%	0mm	0mm	-14dBZ	0mm	50000m	9.3m/s	Unavailable	Unavailable	6.9m/s
20:00 Night	988hPa	0J/kg	0.03fraction	6.6°C	4%	0mm	0mm	-17dBZ	0mm	30420m	9.2m/s	Unavailable	Unavailable	7m/s
21:00 Night	988hPa	0J/kg	0fraction	7.1°C	6%	0mm	0mm	-20dBZ	0mm	26320m	11m/s	8.5m/s	12m/s	8.2m/s
22:00 Night	988hPa	0J/kg	0fraction	7.2°C	6%	0mm	0mm	-19dBZ	0mm	50000m	13m/s	Unavailable	Unavailable	9.6m/s
23:00 Night	988hPa	20J/kg	0fraction	7.7°C	5%	0.1mm	0mm	-17dBZ	0.1mm	2600m	14m/s	Unavailable	Unavailable	10m/s
Sun, Oct 25, 2026Sunrise 08:58 · Sunset 17:36
24:00 Night	989hPa	20J/kg	0fraction	8.3°C	4%	0.2mm	0mm	-16dBZ	0.3mm	3500m	16m/s	8.9m/s	11m/s	11m/s
01:00 Night	989hPa	10J/kg	0fraction	8.5°C	3%	0.3mm	0mm	-17dBZ	0.3mm	7700m	16m/s	Unavailable	Unavailable	11m/s
02:00 Night	989hPa	10J/kg	0fraction	8.4°C	3%	0.1mm	0mm	-19dBZ	0.1mm	5560m	15m/s	Unavailable	Unavailable	11m/s
03:00 Night	989hPa	7.5J/kg	0fraction	8.3°C	4%	0mm	0mm	-20dBZ	0mm	19545m	13m/s	8.8m/s	12m/s	8.5m/s
04:00 Night	989hPa	0J/kg	0fraction	8.3°C	9%	0mm	0mm	-17dBZ	0mm	53500m	9.8m/s	Unavailable	Unavailable	5.3m/s
05:00 Night	989hPa	2.5J/kg	0fraction	8.3°C	17%	0mm	0mm	-13dBZ	0mm	55265m	6.5m/s	Unavailable	Unavailable	3.6m/s
06:00 Night	989hPa	0J/kg	0fraction	8.5°C	22%	0mm	0mm	-9.9dBZ	0mm	56980m	4.9m/s	7.9m/s	12m/s	2m/s
07:00 Night	989hPa	0J/kg	0fraction	8.2°C	23%	0mm	0mm	-13dBZ	0mm	20320m	5.9m/s	Unavailable	Unavailable	2.3m/s
08:00 Night	989hPa	0J/kg	0fraction	7°C	22%	0mm	0mm	-17dBZ	0mm	20880m	6m/s	Unavailable	Unavailable	2.3m/s
09:00	989hPa	0J/kg	0fraction	6.9°C	22%	0mm	0mm	-20dBZ	0mm	5480m	6.4m/s	6.3m/s	11m/s	2.3m/s
10:00	990hPa	0J/kg	0fraction	6.6°C	24%	0mm	0mm	-20dBZ	0mm	1840m	6.9m/s	Unavailable	Unavailable	2.7m/s
11:00	990hPa	0J/kg	0fraction	6°C	26%	0mm	0mm	-20dBZ	0mm	1860m	6.7m/s	Unavailable	Unavailable	2.7m/s
12:00	990hPa	0J/kg	0fraction	5.8°C	29%	0mm	0mm	-20dBZ	0mm	2160m	6.5m/s	6.7m/s	12m/s	2.6m/s
13:00	990hPa	0J/kg	0fraction	6.4°C	32%	0mm	0mm	-20dBZ	0mm	2700m	6.2m/s	Unavailable	Unavailable	2.6m/s
14:00	990hPa	0J/kg	0fraction	6.8°C	35%	0.1mm	0mm	-20dBZ	0.1mm	3380m	6.6m/s	Unavailable	Unavailable	2.8m/s
15:00	990hPa	0J/kg	0fraction	6.1°C	39%	0.3mm	0mm	-20dBZ	0.3mm	3340m	6.6m/s	5.4m/s	11m/s	2.2m/s
16:00	990hPa	0J/kg	0fraction	6.1°C	43%	0.5mm	0mm	-20dBZ	0.5mm	3740m	6.4m/s	Unavailable	Unavailable	2.5m/s
17:00	990hPa	0J/kg	0fraction	6.5°C	48%	0.4mm	0mm	-20dBZ	0.4mm	3160m	7.3m/s	Unavailable	Unavailable	2.9m/s
18:00 Night	989hPa	0J/kg	0fraction	7.3°C	51%	0.7mm	0mm	-20dBZ	0.7mm	3080m	8.9m/s	4.1m/s	7.1m/s	3.7m/s
19:00 Night	989hPa	0J/kg	0fraction	8.3°C	53%	0.6mm	0mm	-20dBZ	0.6mm	3100m	11m/s	Unavailable	Unavailable	4.8m/s
20:00 Night	989hPa	0J/kg	0fraction	8.6°C	55%	0.7mm	0mm	-20dBZ	0.7mm	3040m	12m/s	Unavailable	Unavailable	4.8m/s

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Storm Chaser conditions across Iceland Coast. The requirements and hourly values above show how those signals apply at Arnarstapi.

Explore Storm Chaser conditions across Iceland Coast →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Arnarstapi during the last 365 days.

Last 30 days

recorded matching windows · 53% average confidence

Last 90 days

recorded matching windows · 53% average confidence

Last 365 days

recorded matching windows · 53% average confidence

Most represented month

September, with 30 of 77 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

Create your own Storm Chaser alerts

Get notified when these conditions match at your own locations.

Get this template

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →

Get Notified of Opportunities

Create your own custom alerts for this location and more.

Create Free Account