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ONP-0007 · PC4-ONP-0007
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about the park
National Park
- World Heritage Site
date / time
date / time
2026-04-30
time
11:21 AM
season cycle, Spring
season cycle
iNaturalist community observations
- Pacific trillium163 obs
- Fairy-slipper124 obs
- Pacific Banana Slug109 obs
- Arctic Butterbur89 obs
- Giant Green Anemone72 obs
- Red-flowering Currant69 obs
- western skunk cabbage62 obs
- Broad-leaved Stonecrop62 obs
research-grade observations within 25 km during this calendar month. Counts are total verified iNaturalist observations
light / sun / UV
UV index
3.6 · moderate
UV clear sky
4.6 · moderate
solar (GHI)
656 W/m² · partly clear
solar DNI
284 W/m²
solar DHI
416 W/m²
clearness
0.81
weather / radar
weather
weather
Overcast
temperature
49°F
humidity
56%
cloud cover
91%
pressure
1021 hPa
wind
4 mph
gusts 10 mph · S 180°
cloud layers
visibility
21 mi
rain
0"
dew point
34°F
radar
radar· ±1h · 10min

reflectivity (dBZ)
0–75
water
water
Nearest USGS gage, 8.3 km away (not at shutter GPS)
Elwha River
1040 cfs · 10.3 ft · 8.3 km
atmosphere / air quality
satellite
satellite· ±1h · 20min

atmosphere
EPA AQI
31
PM2.5
3.4 µg/m³ · good
European AQI
40 · moderate
PM10
6.4 µg/m³ · good
ozone
99 µg/m³ · fair
NO₂
4 µg/m³ · good
SO₂
1 µg/m³ · good
air clarity
0.15 · clear
dust
6 µg/m³ · clear
CO
152 µg/m³ · good
sky cover
CLM · clear
CLM · clear · 57°F · 15 km modeled 49°F / 4 mph; nearest station CLM (15 km) reported 57°F / 7 mphMETAR
KCLM 301820Z AUTO 09006KT 10SM CLR 14/08 A3016 RMK T01400080 MADISHF
METAR observed
11:20 AM
night sky
moon
lunar cycle: Full Moon - day 14 not visible (-55°)
daily moon cycle: before moonrise
night sky
darkness
2 · typical truly dark site
light: dayseeing Poor
milky way
Geometric positions at capture (not naked-eye visibility)
astronomical events
Beltane
technical
sensor / film
color science
Sony
focal length
61mm (169mm equiv.)
exposure triangle: f/11 · 1/50s · 64
exposure triangle
color
histogram
attribution
© 2026 frank charlton
data attribution
- Weather data by Open-Meteo.com (CC BY 4.0)
- METAR / NEXRAD: Iowa Environmental Mesonet, Iowa State University
- Hydrology: USGS Water Data
- Basemap: USGS The National Map
- Solar: NASA POWER (CC BY 4.0)
- Satellite: GOES-West (NOAA/NESDIS); NaturalColor derived (CIMSS recipe)
- Weather interpolated from nearest METAR station (Port Angeles, 14.8 km)
- Radar: NEXRAD ATX (80 km), scan time ±10 min
- Satellite: GOES-West (goes18), product time ±20 min
- Sun, moon, and planet positions computed for exact coordinates
- Basemap: USGS Imagery, center ±2.5°