Current Conditions

UTC Date : 19h on 14 July 2018
(12 AM local Ridge A time)
1m air Temperature : -70C (-94F)
1m winds (est'd) : N at 10 kt
Atm. Pressure : 568 mbar (low)
Altimeter setting : 27.90 in Hg
Pressure altitude : 4620 meters (15,200 ft)
Precip. water / wx : 0.10 mm SKC
Receiver Status : 809 GHz : (OFF)
492 GHz : (OFF)
1497 GHz : (OFF)
FFT Spectrometer : (OFF)

Latest Webcam Montage

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Area Weather Summary

Updated 17Z, 29 June 2018

5 Day Forecast

Updated 00Z, 29 June 2018

29 June Clear and calm with temperatures in the low -60Cs.
30 June Clear early with increasing chances of thin scattered clouds or ice crystals, with breezes increasing from the W to 10-15 kt. Temperatures will be around -60C to -65C.
1-3 July A weak moisture impulse will breeze over the summit on the 1st, bringing west winds at 15 kt but rapidly dropping to 5-10 kt by the end of the 1st and light and variable for the 2nd and 3rd. Temperatures will drop to around -70C thereafter as the midlevel atmosphere finally cools to -45C or colder. The 3rd and 4th should have excellent THz conditions with PWV potentially dropping to or even below 0.1mm.

Forecast images

Current AMPS models for the following parameters. Click one to view full-scale.

  • Surface conditions (temperature and winds)
  • Surface winds
  • Winds and relative humidity aloft, 3000 ft above ground (900m)
  • Temperature and winds at 16 kft (4.9 km)
  • Surface altimeter setting (barometric pressure corrected to sea level)
  • Cloud coverage and heights