SMTO Weather Conditions

SMTO Weather Information:

Last measurement done on 30-APR-2017 at 22:20 MST.

Temperature Pressure Humidity Wind Speed Wind Direction Tau
Current 40.3°F / 4.6°C 20.5 in. Hg / 695.4 hPa 25.5% 1.0 mph / 0.4 m/s 155.0° 0.197
1 hour low 39.0°F / 3.9°C 20.5 in. Hg / 693.8 hPa 25.0% 0.0 mph / 0.0 m/s 207.0° 0.182
1 hour high 40.3°F / 4.6°C 20.5 in. Hg / 695.4 hPa 27.0% 7.0 mph / 3.1 m/s 193.0° 0.239
24 hour low 24.5°F / -4.1°C 20.4 in. Hg / 689.5 hPa 10.3% 5.0 mph / 2.2 m/s 114.0° 0.114
24 hour high 45.5°F / 7.5°C 20.8 in. Hg / 705.8 hPa 54.1% 18.0 mph / 8.0 m/s 187.0° 0.355


Current Atmospheric Opacity:

The most recent tau measurement was done on 30-APR-2017 at 22:23 MST.

Tau(225 GHz) = 0.197 (Click here to see a fit to this measurement)

Spectral Line Frequency (GHz) Opacity
12CO J=2-1230 0.28
12CO J=3-2345 0.67
12CO J=4-3460 2.21
[C I]809 3.65

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.