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Size

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Mix any 4" x 6" postcards, 2 for $10 at checkout ($10 per pair)

ONP-0004 · PC4-ONP-0004

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about this photo

place

map

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

hole-in-the-wall

Rialto Beach

Olympic Peninsula, WA

A rugged Pacific coastline in Olympic National Park, known for sea stacks, driftwood, and tidepools.

about the park

Olympic National Park

National Park

  • World Heritage Site
area908,160 acreselevation0–7,929 ftmanaged byNational Park Service
date / time

date / time

2024-10-21

time

11:00 AM

season cycle, Fall

season cycle

iNaturalist community observations

  • Giant Green Anemone43 obs
  • Ochre Sea Star35 obs
  • Pacific Banana Slug24 obs
  • Fly Agaric19 obs
  • Gooseneck Barnacle19 obs
  • Aggregating Anemone18 obs
  • Bull Kelp17 obs
  • salal14 obs

research-grade observations within 25 km during this calendar month. Counts are total verified iNaturalist observations

light / sun / UV

UV index

0.3 · low

lowextreme
UV 0–2 · minimal protection needed

UV clear sky

1.5 · low

lowextreme
UV 0–2 · minimal protection needed

solar (GHI)

242 W/m² · overcast

very lowbright
200–400 W/m² · cloudy daylight
dawn visible (25°)

solar DNI

85 W/m²

dimsoftpartlybright

solar DHI

187 W/m²

dimsoftbrightheavy

clearness

0.53

overcastintermediateclear
weather / radar

weather

weather

Clear sky

temperature

52°F

coldcoolcomfortablewarmhot
45°F – 55°F · daily range

humidity

91%

0%100%
83% – 97% · daily range

cloud cover

7%

0%100%
1% – 100% · daily range

pressure

1015 hPa

lownear normalhigh
1014 hPa – 1021 hPa · daily range · steady

wind

4 mph

gusts 5 mph · E 99°

cloud layers

high cloud0%
mid cloud7%
low cloud3%

visibility

9.2 mi

0.0 mi25 mi
0.6 mi – 11 mi · daily range

rain

0"

dew point

50°F

radar

radar· ±1h · 10min

radar frame 7 of 13

reflectivity (dBZ)

0–75

lightmoderateheavy
LGX · N0Q · 11:00 AM · 101 km · pin marks capture location
water

water

Nearest USGS gage, 8.9 km away (not at shutter GPS)

tide· 24h

La Push, Quillayute River, WA · ft MLLW

sea surface

54°F

46°F64°F
46°F – 64°F · year

rising – 4.3 ft

tide station

La Push, Quillayute River, WA · 3.4 km

waves

1.6 m · 9s

wave direction

W

swell

1.6 m

Bogachiel River

30.0 ft · 8.9 km

atmosphere / air quality

satellite

satellite· ±1h · 20min

satellite frame 4 of 7
goes18 · TrueColor · 11:01 AM · pin marks capture location

atmosphere

EPA AQI

30

goodhazardous
EPA 0–50 · air quality is satisfactory

PM2.5

2.3 µg/m³ · good

goodhazardous
0–12 µg/m³ · EPA good

European AQI

27 · fair

goodextremely poor
EEA 20–40 · fair

PM10

3.9 µg/m³ · good

goodextremely poor
0–20 µg/m³ · EEA good

ozone

68 µg/m³ · fair

goodextremely poor
50–100 µg/m³ · EEA fair

NO₂

1 µg/m³ · good

goodextremely poor
0–40 µg/m³ · EEA good

SO₂

0 µg/m³ · good

goodextremely poor
0–100 µg/m³ · EEA good

air clarity

0.03 · crystal clear

crystal clearsmoke / dust
AOD 0–0.1 · pristine, deep-blue sky

dust

0 µg/m³ · clear

clearextreme
0–10 µg/m³ · clear of mineral dust

CO

142 µg/m³ · good

goodextremely poor
0–4000 µg/m³ · clean air

sky cover

UIL · broken at 5,000 ft

clearovercast
UIL · broken at 5,000 ft · 52°F · 6.6 kmMETAR

KUIL 211800Z AUTO 08004KT 10SM BKN050 11/09 A2998 RMK T01100090 MADISHF

METAR observed

11:00 AM

night sky

moon

lunar cycle: Waning Gibbous - day 20 visible (20°)

Waning Gibbous - day 20 visible (20°)

daily moon cycle: moon setting

moon setting

night sky

darkness

1 · excellent dark-sky site

excellent dark-sky siteinner-city sky
Bortle 1 · excellent dark-sky site

light: dayseeing Fair

milky way

janfebmaraprmayjunjulaugsepoctnovdec
in season · not visible (-22°) · ESE
NESWSun: 25° alt, 146° azSunMoon: 20° alt, 290° azMoonMercury: 15° alt, 137° az · 14° from SunMercuryMars: 37° alt, 263° az · 94° from SunMarsJupiter: 13° alt, 289° az · 128° from SunJupiter

Geometric positions at capture (not naked-eye visibility)

astronomical events

  • Orionids

technical

sensor / film

color science

Sony

focal length

22mm (61mm equiv.)

exposure triangle: f/4 · 1/250s · 100

exposure triangle

color
Masala14%

histogram

shadowsmidtoneshighlights
redgreenblue
 

attribution

© 2024 frank charlton

data attribution

  • Weather data by Open-Meteo.com (CC BY 4.0)
  • Tide data: NOAA CO-OPS
  • 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)
  • Water quality: Washington State Department of Ecology
  • Weather interpolated from nearest METAR station (QUILLAYUTE STATE, 6.6 km)
  • Tide predictions from NOAA CO-OPS station La Push, Quillayute River, WA (3.4 km)
  • Radar: NEXRAD LGX (100.5 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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