Rule Storm Chaser

Storm Chaser Forecast for Waimea Canyon, Hawaii

Lihue, Hawaii, United States

Waimea Canyon exposes red volcanic walls, deep ravines, and narrow waterfalls; roadside overlooks reveal overlapping ridges toward the coast.

Currently

Real-time conditions

Storm Intensity

25%

CAPE146

Lifted Index-0.3°C

Wind Gusts9.1m/s

Precipitation0.2mm

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Honolulu

Next opportunity

Weak Storm at Dawn

Waimea Canyon

Tue, Aug 25 · 05:00–06:00 · 1h window

Medium confidence

42%

⛈️Storm Intensity41.9%

CAPE: 148

Lifted Index: -0.1°C

Wind Gusts: 8.1m/s

Precipitation: 2.7mm

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Storm Chaser conditions across Hawaii. The requirements and hourly values below show how those signals apply at Waimea Canyon.

Explore Storm Chaser conditions across Hawaii →

Recorded match history

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

Last 30 days

recorded matching windows · 54% average confidence

Last 90 days

recorded matching windows · 54% average confidence

Last 365 days

recorded matching windows · 54% average confidence

Most frequent recorded start hour

08:00 local time, shared by 3 of 16 matches recorded in the last 365 days.

Most represented month

August, with 9 of 16 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.

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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour

1matching hours in the next 95 hoursJump to next match

AND logic: all conditions required

Meets requirement

Misses requirement

Time Pacific/Honolulu	Storm Intensity ≥ 40.0%
Sat, Aug 22
22:00	20%
23:00	19%
Sun, Aug 23
24:00	19%
01:00	22%
02:00	22%
03:00	22%
04:00	19%
05:00	16%
06:00	16%
07:00	17%
08:00	16%
09:00	16%
10:00	15%
11:00	17%
12:00	16%
13:00	22%
14:00	22%
15:00	24%
16:00	18%
17:00	21%
18:00	20%
19:00	26%
20:00	27%
21:00	24%
22:00	25%
23:00	26%
Mon, Aug 24
24:00	25%
01:00	24%
02:00	26%
03:00	25%
04:00	26%
05:00	26%
06:00	26%
07:00	29%
08:00	29%
09:00	23%
10:00	21%
11:00	19%
12:00	24%
13:00	24%
14:00	27%
15:00	23%
16:00	22%
17:00	21%
18:00	21%
19:00	24%
20:00	24%
21:00	24%
22:00	22%
23:00	26%
Tue, Aug 25
24:00	36%
01:00	35%
02:00	30%
03:00	31%
04:00	37%
05:00	42%
06:00	31%
07:00	29%
08:00	28%
09:00	17%
10:00	15%
11:00	14%
12:00	15%
13:00	0%
14:00	0%
15:00	16%
16:00	15%
17:00	15%
18:00	15%
19:00	0%
20:00	20%
21:00	16%
22:00	19%
23:00	21%
Wed, Aug 26
24:00	20%
01:00	21%
02:00	21%
03:00	19%
04:00	18%
05:00	15%
06:00	17%
07:00	19%
08:00	16%
09:00	18%
10:00	19%
11:00	20%
12:00	18%
13:00	0%
14:00	0%
15:00	0%
16:00	0%
17:00	0%
18:00	0%
19:00	22%
20:00	26%

How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Storm Intensity 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 Pacific/Honolulu	Air Pressure hPa	CAPE J/kg	Convective Precip Fraction fraction	Lifted Index °C	Precipitation Chance %	Rainfall mm	Showers mm	Simulated Reflectivity dBZ	Total Precipitation mm	Visibility m	Wind Gusts m/s	Wind Shear 0-3 km m/s	Wind Shear 0-6 km m/s	Wind Speed m/s
Sun, Aug 23 Sunrise 06:18 Sunset 19:00
22:00 ☾	1015hPa	146J/kg	0.63fraction	-0.3°C	95%	0mm	0.03mm	-0.58dBZ	0.19mm	24135m	9.1m/s	-	-	7.5m/s
23:00 ☾	1014hPa	121J/kg	0.67fraction	-0.5°C	93%	0mm	0.03mm	4dBZ	0.19mm	24134m	8.8m/s	4.9m/s	6m/s	7.1m/s
Mon, Aug 24 Sunrise 06:18 Sunset 19:00
24:00 ☾	1014hPa	100J/kg	0.62fraction	-0.6°C	95%	0mm	0.04mm	1.1dBZ	0.25mm	24135m	8.7m/s	-	-	7.1m/s
01:00 ☾	1013hPa	99J/kg	0.57fraction	-0.3°C	96%	0mm	0.05mm	-1.7dBZ	0.31mm	24134m	8.5m/s	-	-	7.3m/s
02:00 ☾	1012hPa	103J/kg	0.53fraction	-0.2°C	98%	0mm	0.11mm	-4.6dBZ	0.31mm	24065m	8.3m/s	6.3m/s	7.5m/s	7.1m/s
03:00 ☾	1012hPa	118J/kg	0.68fraction	-0.5°C	94%	0mm	0.18mm	-0.14dBZ	0.13mm	22288m	8.2m/s	-	-	6.9m/s
04:00 ☾	1012hPa	138J/kg	0.84fraction	-0.8°C	91%	0mm	0.18mm	4.3dBZ	0.31mm	22254m	8.4m/s	-	-	6.9m/s
05:00 ☾	1012hPa	153J/kg	1fraction	-0.9°C	87%	0mm	0.13mm	8.7dBZ	0.5mm	22897m	8.4m/s	6.3m/s	8.1m/s	6.7m/s
06:00 ☾	1013hPa	193J/kg	0.92fraction	-1.4°C	90%	0mm	0.08mm	8.5dBZ	0.69mm	24134m	8.5m/s	-	-	6.8m/s
07:00	1013hPa	212J/kg	0.85fraction	-1.5°C	93%	0mm	0.41mm	8.2dBZ	1mm	19398m	8.4m/s	-	-	6.8m/s
08:00	1014hPa	226J/kg	0.77fraction	-1.6°C	96%	0mm	0.3mm	7.9dBZ	1.4mm	19885m	8.8m/s	5.9m/s	8.1m/s	7.1m/s
09:00	1014hPa	213J/kg	0.69fraction	-1.7°C	83%	0mm	0.33mm	1.7dBZ	0.31mm	19548m	8.9m/s	-	-	7.3m/s
10:00	1014hPa	210J/kg	0.61fraction	-1.7°C	69%	0mm	0.16mm	-4.5dBZ	0.63mm	24134m	8.7m/s	-	-	7.2m/s
11:00	1014hPa	221J/kg	0.53fraction	-1.8°C	56%	0mm	0.14mm	-11dBZ	0.88mm	24134m	8.7m/s	5.7m/s	6.8m/s	7.1m/s
12:00	1014hPa	244J/kg	0.64fraction	-1.9°C	65%	0mm	0.06mm	-4.9dBZ	1mm	24135m	8.4m/s	-	-	6.9m/s
13:00	1013hPa	271J/kg	0.74fraction	-1.9°C	73%	0mm	0.1mm	0.85dBZ	1.1mm	22501m	7.8m/s	-	-	6.5m/s
14:00 ☾	1013hPa	289J/kg	0.85fraction	-1.9°C	82%	0mm	0.24mm	6.6dBZ	1.3mm	24134m	7.6m/s	3.5m/s	5.3m/s	6.5m/s
15:00 ☾	1013hPa	327J/kg	0.68fraction	-1.9°C	82%	0mm	0.09mm	1.8dBZ	0.19mm	24135m	7.5m/s	-	-	6.6m/s
16:00 ☾	1013hPa	317J/kg	0.52fraction	-1.9°C	82%	0mm	0.04mm	-3dBZ	0.31mm	24134m	7.9m/s	-	-	7m/s
17:00 ☾	1013hPa	304J/kg	0.36fraction	-1.6°C	82%	0mm	0.03mm	-7.8dBZ	0.38mm	24135m	8m/s	4.1m/s	4.1m/s	6.8m/s
18:00 ☾	1013hPa	343J/kg	0.39fraction	-1.7°C	88%	0mm	0.03mm	-9.7dBZ	0.38mm	24135m	8.3m/s	-	-	6.7m/s
19:00 ☾	1013hPa	388J/kg	0.43fraction	-1.7°C	93%	0mm	0.04mm	-12dBZ	0.44mm	24134m	8.8m/s	-	-	6.5m/s
20:00 ☾	1014hPa	405J/kg	0.46fraction	-1.6°C	99%	0mm	0.04mm	-14dBZ	0.56mm	24135m	8.5m/s	4.5m/s	4.2m/s	6.2m/s
21:00 ☾	1014hPa	429J/kg	0.5fraction	-1.6°C	93%	0mm	0.04mm	-5.3dBZ	0.38mm	24135m	8.1m/s	-	-	6.2m/s
22:00 ☾	1015hPa	419J/kg	0.54fraction	-1.4°C	88%	0mm	0.1mm	3dBZ	0.75mm	24134m	7.8m/s	-	-	6.2m/s
23:00 ☾	1015hPa	380J/kg	0.58fraction	-1.3°C	82%	0mm	0.05mm	11dBZ	1mm	24135m	7.7m/s	4.4m/s	2m/s	6.1m/s
Tue, Aug 25 Sunrise 06:18 Sunset 18:59
24:00 ☾	1015hPa	335J/kg	0.72fraction	-1.3°C	88%	0mm	1.4mm	12dBZ	1.3mm	5377m	7.5m/s	-	-	5.9m/s
01:00 ☾	1014hPa	322J/kg	0.86fraction	-1.3°C	93%	0mm	0.72mm	13dBZ	1.5mm	17839m	7.4m/s	-	-	6.1m/s
02:00 ☾	1013hPa	269J/kg	1fraction	-1°C	99%	0mm	0.32mm	13dBZ	1.9mm	19609m	7.2m/s	4.9m/s	3.9m/s	6.2m/s
03:00 ☾	1013hPa	257J/kg	1fraction	-0.8°C	93%	0mm	0.53mm	13dBZ	0.56mm	18802m	7.3m/s	-	-	6.2m/s
04:00 ☾	1013hPa	209J/kg	1fraction	-0.6°C	88%	0mm	0.7mm	13dBZ	1.5mm	8839m	7.8m/s	-	-	6.8m/s
05:00 ☾	1013hPa	148J/kg	1fraction	-0.1°C	82%	0mm	1.1mm	13dBZ	2.7mm	8719m	8.1m/s	5m/s	4.8m/s	7m/s
06:00 ☾	1014hPa	106J/kg	0.74fraction	-0.1°C	82%	0mm	0.44mm	9.4dBZ	3.6mm	13976m	8.9m/s	-	-	7.5m/s
07:00	1014hPa	45J/kg	0.49fraction	-0.1°C	82%	0mm	0.26mm	6.2dBZ	4.1mm	21462m	8.7m/s	-	-	7.6m/s
08:00	1014hPa	39J/kg	0.23fraction	-0.2°C	82%	0mm	0.11mm	3dBZ	4.3mm	21792m	8.5m/s	5m/s	4.9m/s	7.3m/s
09:00	1015hPa	37J/kg	0.37fraction	-0.2°C	55%	0mm	0.14mm	4.9dBZ	0.13mm	23042m	8.7m/s	-	-	7.9m/s
10:00	1015hPa	35J/kg	0.52fraction	0.1°C	27%	0mm	0.1mm	6.8dBZ	0.31mm	24134m	8.6m/s	-	-	7.9m/s
11:00	1015hPa	30J/kg	0.66fraction	0°C	0%	0mm	0.05mm	8.7dBZ	0.38mm	24135m	8.5m/s	4m/s	4.9m/s	7.7m/s
12:00	1015hPa	21J/kg	0.5fraction	0.2°C	13%	0mm	0.06mm	0.5dBZ	0.5mm	24135m	7.9m/s	-	-	7.6m/s
13:00	1014hPa	4J/kg	0.34fraction	1°C	26%	0mm	0.02mm	-7.7dBZ	0.56mm	24135m	7.7m/s	-	-	7.1m/s
14:00 ☾	1014hPa	18J/kg	0.19fraction	0.4°C	39%	0.01mm	0.08mm	-16dBZ	0.56mm	24134m	7.3m/s	2.8m/s	5m/s	5.9m/s
15:00 ☾	1013hPa	35J/kg	0.3fraction	-0.1°C	26%	0mm	0.12mm	-9.6dBZ	0.13mm	22004m	7.3m/s	-	-	6.8m/s
16:00 ☾	1013hPa	12J/kg	0.41fraction	0.5°C	13%	0mm	0.04mm	-3.4dBZ	0.19mm	24135m	7.7m/s	-	-	7m/s
17:00 ☾	1013hPa	18J/kg	0.52fraction	0.7°C	0%	0mm	0.02mm	2.9dBZ	0.25mm	24135m	7.4m/s	1.3m/s	5.1m/s	6.4m/s
18:00 ☾	1013hPa	19J/kg	0.45fraction	0.7°C	27%	0mm	0.03mm	-2.8dBZ	0.25mm	24134m	7.5m/s	-	-	6.6m/s
19:00 ☾	1014hPa	15J/kg	0.37fraction	1.1°C	55%	0mm	0.03mm	-8.6dBZ	0.31mm	24134m	7.6m/s	-	-	6.7m/s
20:00 ☾	1015hPa	15J/kg	0.3fraction	1.1°C	82%	0mm	0.03mm	-14dBZ	0.31mm	24134m	7.7m/s	2.4m/s	6.4m/s	6.9m/s
21:00 ☾	1015hPa	17J/kg	0.54fraction	1.3°C	82%	0mm	0.04mm	-8.6dBZ	0.06mm	24135m	7.8m/s	-	-	7.1m/s
22:00 ☾	1016hPa	19J/kg	0.77fraction	1.7°C	82%	0mm	0.04mm	-2.9dBZ	0.13mm	24135m	7.9m/s	-	-	7m/s
23:00 ☾	1016hPa	24J/kg	1fraction	1.9°C	82%	0mm	0.07mm	2.8dBZ	0.13mm	24135m	7.8m/s	2.9m/s	6.9m/s	6.7m/s
Wed, Aug 26 Sunrise 06:19 Sunset 18:58
24:00 ☾	1015hPa	34J/kg	0.83fraction	1.4°C	82%	0mm	0.14mm	4.4dBZ	0.25mm	24134m	7.5m/s	-	-	6.5m/s
01:00 ☾	1015hPa	38J/kg	0.65fraction	1.5°C	82%	0mm	0.12mm	6.1dBZ	0.38mm	24134m	7.8m/s	-	-	7m/s
02:00 ☾	1014hPa	34J/kg	0.48fraction	1.7°C	82%	0mm	0.1mm	7.7dBZ	0.5mm	24134m	7.1m/s	2.7m/s	6.4m/s	6.3m/s
03:00 ☾	1014hPa	39J/kg	0.65fraction	1.3°C	67%	0.01mm	0.11mm	5.1dBZ	0.13mm	24134m	7.5m/s	-	-	6.5m/s
04:00 ☾	1014hPa	37J/kg	0.83fraction	1.3°C	53%	0mm	0.14mm	2.6dBZ	0.25mm	24086m	7m/s	-	-	5.8m/s
05:00 ☾	1014hPa	46J/kg	1fraction	0.8°C	39%	0mm	0.25mm	-0dBZ	0.38mm	20703m	7m/s	2.6m/s	6.3m/s	5.5m/s
06:00 ☾	1014hPa	50J/kg	0.81fraction	0.6°C	39%	0mm	0.24mm	3.1dBZ	0.63mm	18843m	7.5m/s	-	-	6.3m/s
07:00	1015hPa	17J/kg	0.61fraction	1.8°C	39%	0mm	0.05mm	6.3dBZ	0.75mm	24135m	8.7m/s	-	-	8.2m/s
08:00	1015hPa	10J/kg	0.42fraction	2.3°C	39%	0mm	0.02mm	9.4dBZ	0.75mm	24135m	8.7m/s	1.3m/s	6.8m/s	7.6m/s
09:00	1000hPa	6.7J/kg	0.53fraction	2.3°C	26%	0mm	0.01mm	6.3dBZ	0.5mm	24135m	7.6m/s	-	-	6.5m/s
10:00	984hPa	3.3J/kg	0.64fraction	2.2°C	13%	0mm	0.007mm	3.2dBZ	0.25mm	24135m	6.5m/s	-	-	5.5m/s
11:00	969hPa	0J/kg	0.75fraction	2.2°C	0%	0mm	0mm	0.13dBZ	0mm	24135m	5.4m/s	0.88m/s	7.5m/s	4.4m/s
12:00	969hPa	0.33J/kg	0.52fraction	2.3°C	13%	0.003mm	0mm	-6.6dBZ	0.02mm	24135m	5.7m/s	-	-	4.3m/s
13:00	969hPa	0.67J/kg	0.29fraction	2.4°C	26%	0.007mm	0mm	-13dBZ	0.04mm	24135m	6m/s	-	-	4.1m/s
14:00 ☾	970hPa	1J/kg	0.07fraction	2.5°C	39%	0.01mm	0mm	-20dBZ	0.06mm	24135m	6.3m/s	1.5m/s	6.5m/s	4m/s
15:00 ☾	970hPa	1.3J/kg	0.05fraction	2.6°C	39%	0.007mm	0.01mm	-20dBZ	0.06mm	24135m	6.4m/s	-	-	3.9m/s
16:00 ☾	970hPa	1.7J/kg	0.02fraction	2.7°C	39%	0.003mm	0.02mm	-20dBZ	0.06mm	24135m	6.4m/s	-	-	3.9m/s
17:00 ☾	971hPa	2J/kg	0fraction	2.7°C	39%	0mm	0.03mm	-20dBZ	0.06mm	24135m	6.4m/s	2.4m/s	6.2m/s	3.8m/s
18:00 ☾	970hPa	2J/kg	0.33fraction	2.9°C	49%	0.003mm	0.02mm	-17dBZ	0.08mm	24135m	6.3m/s	-	-	3.8m/s
19:00 ☾	969hPa	2J/kg	0.67fraction	3°C	59%	0.007mm	0.01mm	-15dBZ	0.1mm	24135m	6.3m/s	-	-	3.8m/s
20:00 ☾	969hPa	2J/kg	1fraction	3.2°C	69%	0.01mm	0mm	-12dBZ	0.13mm	24135m	6.2m/s	2.4m/s	7.4m/s	3.7m/s
21:00 ☾	969hPa	1.3J/kg	1fraction	3.6°C	59%	0.01mm	0mm	-8.7dBZ	0.08mm	24135m	6.1m/s	-	-	3.6m/s

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

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 →

Forecast generated

Aug 24, 2026, 7:40 AM UTC

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