SMTO Weather Conditions

SMTO Weather Information:

Last measurement done on 26-MAR-2017 at 19:24 MST.

Temperature Pressure Humidity Wind Speed Wind Direction Tau
Current 31.5°F / -0.2°C 20.3 in. Hg / 686.7 hPa 63.1% 1.0 mph / 0.4 m/s 167.0° 0.282
1 hour low 31.5°F / -0.2°C 20.3 in. Hg / 686.7 hPa 52.0% 0.0 mph / 0.0 m/s 169.0° 0.246
1 hour high 34.3°F / 1.3°C 20.3 in. Hg / 688.0 hPa 63.0% 16.0 mph / 7.2 m/s 159.0° 0.423
24 hour low 25.1°F / -3.7°C 20.2 in. Hg / 685.6 hPa 36.9% 7.0 mph / 3.1 m/s 186.0° 0.134
24 hour high 39.3°F / 4.1°C 20.9 in. Hg / 708.9 hPa 84.1% 26.0 mph / 11.6 m/s 153.0° 0.525


Current Atmospheric Opacity:

The most recent tau measurement was done on 26-MAR-2017 at 19:20 MST.

Tau(225 GHz) = 0.282 (Click here to see a fit to this measurement)

Spectral Line Frequency (GHz) Opacity
12CO J=2-1230 0.40
12CO J=3-2345 0.96
12CO J=4-3460 3.16
[C I]809 5.22

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.