Weather resources

CSO data

Optical depth (τ)
- Tipping Radiometers
Adverse Weather policy
Weather log: Today, Historical
- The CSO hygrometer and thermometer are mounted inside the dome. So if the shutter is closed, the temperature is usually higher and the relative humidity lower than outside.
- The CSO anemometer is not working.
Webcams

EAO weather summary (ex JAC)
University of Hawaii Department of Meteorology
- Satellite images
- Hawaii weather
- Tropical weather (shows the storm tracks, etc.)
Hawaii Upper Air Forecast (NOAA Environmental Modeling Center; 12 km resolution, 84 hours).
The “700 mb Height and RH” images, showing the height (in meters) of the 700 mb surface and the relative humidity at that level, are probably of most interest in predicting the summit weather.
Precipitable Water Vapor, East Pacific. (University of Wisconsin)
Total column, to sea level.

Sunset and Sunrise calculators
- USNO
- NOAA
- North latitude: 19.8225° = 19° 49'
- West longtitude: 155.4754° = 155° 28'