Arizona hasn’t had rain for a couple of months, and the desert is parched, so I should be happy for the inch or so that fell on Tucson in the last three days. But Murphy’s Law always seems to bring clouds and weather during the new moon when conditions would otherwise be best for astro imaging. Worse, the season is drawing to a close as the Tucson summer rains loom. In July, and lasting through sometime in September, Southern Arizona gets half of its annual rainfall in what we locally call ‘The Monsoons.’ The rains come mostly in the afternoon, with cloud buildups and storms lasting through the night, many times without warning. So the roof to the observatory stays closed.
It’s mid-April. Only a couple of months left.