Significant Precip Event

View of snow cover at Summerhaven General Store from 8:00 am MST this morning. At bottom is view of Catalinas and rain showers yesterday at 10 am - about an hour after the rain had begun here at the house.

Rain (and some snow in mountains) occurred across the entire ALERT Network during the 24-hours ending at 8:00 am this morning (above and below). There were many sites with a half to well over an inch of rain. Here at the house there was 0.79" in the gauge at 8:00 am.

Current morning forecast from the NWS for the airport (above). Below is the 12 UTC WRF-HRRR forecast from Atmo for rain amounts through 6:00 am tomorrow morning.

Chance For Rain Tomorrow

High clouds overhead at 8:30 am MST 6 January.

GEFS 06 UTC plumes - above: QPS, showing significant amounts for tomorrow and perhaps a chance for a bit more on Thursday. Temperature is forecast to fall significantly rest of week and then rebound strongly (below). The POPs from the model runs indicate 100 percent tomorrow and a second peak of 70 percent on Thursday (second below).

Graphic from the NWS (below from yesterday and this morning) shows possible amounts for southeastern Arizona.

December 2025 Summary

View of Rincons at 7:10 am MST on December 17th, 2025.

There was measurable rainfall on 5 days during December here at the house. The heaviest amounts were 0.14" on both Christmas Eve and again on Christmas day. The total for the month was 0.40". This tied with 2003 as the 7th driest December since I started my records in 1999.

Light Showers New Year's Day

An unusual, low-arc rainbow looking toward the Catalinas yesterday afternoon.

Light showers on New Year's Day produced widespread, measurable rain amounts across much of the ALERT Network (above and below) for 24-hours ending at 9:30 am January 2nd. Here at the house several showers resulted in an amount of 0.14" to begin 2026.

Last Day Of Year

Heavy overcast skies this morning - view above is toward the Rincons at 7:00 am MST.

IR satellite image (above from 1515 UTC) shows widespread cloud cover to our south and west.

The 06 UTC plumes for QPF at the airport (above) indicate light rainfall at airport tonight and tomorrow. The GEFS POPs for the airport (below) max at almost 80 percent tomorrow.

The 12 UTC WRF-HRRR forecast for precipitation through 7:00 am tomorrow (below) indicates some fairly heavy amounts over eastern Pima County.

Current forecast graphic and morning forecast for the airport from the NWS Forecast office (above and below). Chart is marginally readable if you go to the NWS website. Looks like a damp ending for 2025 and start to 2026.

Nighttime Showers

View of heavy cloud cover and the Catalinas at 9 am MST this morning.

Showers and sprinkles affected parts of the metro area during the night. ALERT plots (above and below) are for 24-hours ending at 9 am. Here at the house there was 0.06" in the gauge at 9 am.

Rainfall forecast from the NWS this morning (below) calls for amounts of a tenth to a quarter of an inch today at the airport.

Holiday Update

View of the Catalinas at 11:00 am MST on Christmas Day (above) shows some blue sky sneaking in from the west.

Total rain amounts from the ALERT Network (above and below) show a few sites with over half an inch, but with most amounts considerably less. Here at house we we had an additional 0.14" during the afternoon yesterday and last night (rain did not end until around 7:00 am this morning), giving us a total of 0.28".