Wednesday, May 06, 2026

Very Isolated Showers

 Update - only four ALERT sites had rainfall yesterday of 0.04" or more (one of these had 0.08"). Sites were in the Catalinas, plus one at far southwest corner of network.  In sum, a very quiet day across the metro area.

Tuesday, May 05, 2026

Widespread Rains

Showers on Catalinas and foothills at 6 pm MST yesterday afternoon.


There were widespread rain reports across the ALERT Network yesterday (above and below) for 24-hours ending at 7 am this morning. A couple of the null reports look a bit suspect. Here at the house we had 0.31"; the airport had 0.23"; DM AFB reported 0.32"; and Atmo had 0.16". This was first significant rain here since March 10th.



The 09 UTC SREF plumes for QPF at TUS (above - from SPC webpage) show several  members indicating very light amounts after 12 UTC at the airport, but with a few showing over a quarter on an inch. The current morning forecast from the NWS for the airport (below) indicates slight chances for showers and thunder today. We shall see.

Friday, May 01, 2026

A Dry April

It looked promising late yesterday afternoon - view of the Catalinas above from 5:45 pm MST.


However, measurable rain stayed to east and south of the metro area. ALERT observations (above) are for 24-hours ending at 9:00 am this morning. There was no rain at the house during all of April, making this one of 8 Aprils with no rain here since 1999.

The plumes from the 06 UTC runs of the GEFS (below) indicate slight chances for light showers around the 5th of May.