fog/west

Live fog and low cloud for the entire West Coast — Washington, Oregon, and California — seen from NOAA's GOES-18 (GOES-West) satellite, with live airport weather and coastal webcams pinned to the imagery.

Live site: https://n955pk.github.io/Foggy/

What it does

• Animated loop of the GOES-18 Pacific U.S. (PACUS) scan, cropped to a coast-to-Cascades viewport from the Canadian border to Baja; new frames about every 5 minutes, auto-refreshing
• GeoColor by day, blended infrared at night; an IR 3.9 µm mode shows fog the way forecasters find it in the dark
• Airport layer — 20 coastal airports with live National Weather Service observations; markers are colored by reported visibility (green ≥6 sm → red <1 sm, dense fog), and tapping one shows visibility, sky, wind, and temperature
• Webcam layer — Oregon TripCheck coastal cameras plus California Caltrans cameras loaded live from the CWWP2 directory and filtered to within ~24 km of the coastline; icons are tinted by the visibility at the nearest airport, and tapping shows the live still
• Zoom sharpening — the loop plays at 2 km resolution; zoom in and pause and the current frame reloads at 1 km ("HD" appears by the frame time)
• Pinch/scroll zoom, drag pan, a Pacific-time scrubber, 2/4/8-hour spans, ½×–2× speed, and a LIVE/DELAYED freshness indicator

How it works

One self-contained index.html — no build step, no dependencies, no backend, no API keys. The page reads NOAA's public CDN listing at cdn.star.nesdis.noaa.gov for frames, api.weather.gov for airport observations, and Caltrans's public CWWP2 JSON for cameras. Markers are placed with the GOES-R ABI fixed-grid projection (geostationary view from 137.0°W), so every airport and camera sits on its true geography at any zoom. If a data source is unreachable, its layer degrades gracefully and the satellite loop keeps running.

Data & credits

Imagery: NOAA / NESDIS / STAR — GOES-West (GOES-18); GeoColor by CIRA & NOAA. Weather observations: National Weather Service. Cameras: Caltrans (CWWP2) and Oregon DOT TripCheck. Imagery and data are informational only — not for navigation, aviation, or safety-of-life use.

A West Coast homage to fog.today.