olympic gradient

more information about this photo

Type

Size

Also include a USPS Forever stamp for each card ($0.82 each)

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ONP-0006 · PC4-ONP-0006

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about this photo

place

map

Map at capture — USGS Imagery · ±2.5° · pin marks capture location

hurricane hill

Olympic Peninsula, WA

Official site Get directions

about the trail

Hurricane Hill via Hurricane Ridge

AllTrails activity Trail page

about the park

Olympic National Park

National Park

World Heritage Site

area908,160 acreselevation0–7,929 ftmanaged byNational Park Service

NPS Wikipedia Photos from this park

date / time

2026-04-30

time

10:48 AM

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 cabbage63 obs
Pacific Bleeding Heart61 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

lowextreme

UV 3–5 · seek shade near midday

UV clear sky

4.6 · moderate

lowextreme

UV 3–5 · seek shade near midday

solar (GHI)

556 W/m² · partly clear

very lowbright

400–700 W/m² · broken cloud / soft sun

dawn visible (46°)

solar DNI

221 W/m²

dimsoftpartlybright

solar DHI

417 W/m²

dimsoftbrightheavy

clearness

0.80

overcastintermediateclear

weather / radar

weather

Overcast

temperature

49°F

coldcoolcomfortablewarmhot

37°F – 55°F · daily range

humidity

56%

0%100%

41% – 88% · daily range

cloud cover

82%

0%100%

0% – 100% · daily range

pressure

1021 hPa

lownear normalhigh

1017 hPa – 1022 hPa · daily range · steady

wind

5 mph

gusts 9 mph · S 175°

cloud layers

high cloud87%

mid cloud0%

low cloud0%

visibility

21 mi

0.0 mi25 mi

8.9 mi – 31 mi · daily range

rain

dew point

34°F

radar

water

Nearest USGS gage, 8.5 km away (not at shutter GPS)

Elwha River

1030 cfs · 10.3 ft · 8.5 km

atmosphere / air quality

satellite

atmosphere

EPA AQI

goodhazardous

EPA 0–50 · air quality is satisfactory

PM2.5

3.4 µg/m³ · good

goodhazardous

0–12 µg/m³ · EPA good

European AQI

40 · moderate

goodextremely poor

EEA 40–60 · moderate

PM10

6.4 µg/m³ · good

goodextremely poor

0–20 µg/m³ · EEA good

ozone

99 µg/m³ · fair

goodextremely poor

50–100 µg/m³ · EEA fair

NO₂

4 µg/m³ · good

goodextremely poor

0–40 µg/m³ · EEA good

SO₂

1 µg/m³ · good

goodextremely poor

0–100 µg/m³ · EEA good

air clarity

0.15 · clear

crystal clearsmoke / dust

AOD 0.1–0.2 · clear air, crisp distance

dust

6 µg/m³ · clear

clearextreme

0–10 µg/m³ · clear of mineral dust

152 µg/m³ · good

goodextremely poor

0–4000 µg/m³ · clean air

sky cover

CLM · clear

clearovercast

CLM · clear · 57°F · 15 km modeled 49°F / 5 mph; nearest station CLM (15 km) reported 57°F / 6 mphMETAR

KCLM 301750Z AUTO 05005KT 10SM CLR 14/08 A3016 RMK T01400080 MADISHF

METAR observed

10:50 AM

night sky

moon

Full Moon - day 14 not visible (-52°)

before moonrise

night sky

darkness

2 · typical truly dark site

excellent dark-sky siteinner-city sky

Bortle 2 · typical truly dark site

light: dayseeing Poor

milky way

janfebmaraprmayjunjulaugsepoctnovdec

in season · not visible (-25°) · WSW

Geometric positions at capture (not naked-eye visibility)

astronomical events

Beltane

technical

sensor / film

color science

Sony

focal length

72mm (200mm equiv.)

exposure triangle

color

Lost at Sea16%

histogram

shadowsmidtoneshighlights

redgreenblue

attribution

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, 15.1 km)
Radar: NEXRAD ATX (80.3 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°

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