SMTO Weather Conditions

SMTO Weather Information:

Last measurement done on 15-DEC-2017 at 14:21 MST.

Temperature Pressure Humidity Wind Speed Wind Direction Tau
Current 35.7°F / 2.1°C 20.6 in. Hg / 696.5 hPa 4.2% 5.0 mph / 2.2 m/s 62.0° 0.124
1 hour low 35.7°F / 2.1°C 20.6 in. Hg / 696.5 hPa 4.0% 4.0 mph / 1.8 m/s 95.0° 0.102
1 hour high 36.6°F / 2.6°C 20.6 in. Hg / 697.7 hPa 4.0% 17.0 mph / 7.6 m/s 95.0° 0.165
24 hour low 23.4°F / -4.7°C 20.3 in. Hg / 685.7 hPa 3.5% 3.0 mph / 1.3 m/s 212.0° 0.071
24 hour high 36.6°F / 2.6°C 20.8 in. Hg / 705.2 hPa 66.0% 33.0 mph / 14.8 m/s 73.0° 0.264


Current Atmospheric Opacity:

The most recent tau measurement was done on 15-DEC-2017 at 14:24 MST.

Tau(225 GHz) = 0.124 (Click here to see a fit to this measurement)

Spectral Line Frequency (GHz) Opacity
12CO J=2-1230 0.17
12CO J=3-2345 0.42
12CO J=4-3460 1.39
[C I]809 2.29

Note: The scaling factors are now derived from actual skydips in the given bands. We use a tau and frequency averaged constant for each band. The old numbers (before February, 25th, 1999 were theoretical numbers calculated from atmospheric models. We do not show 492 and 691 GHz numbers because we do not yet have enough data points to calculate the factors.

You can also browse the SMTO Weather Statistics Page for a summary of all recent tau(225 GHz) measurements.