Area Forecast Discussion
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
229 FXUS65 KTWC 252026 AFDTWC Area Forecast Discussion National Weather Service Tucson AZ 126 PM MST Sun Jan 25 2026 .SYNOPSIS...High pressure aloft building in from the west will result in dry conditions through at least Wednesday. Below normal high temperatures will continue through Monday, warming to above normal levels the latter half of the week. && .DISCUSSION...Below normal temperatures will continue through Monday behind an existing storm system which brought valley rain and mountain snow to southeast Arizona. High temperatures will be around 10 degrees below normal today and 4-6 degrees below normal Monday. For tonight/early Monday morning, patchy fog is a possibility mainly in the valleys of Cochise County, but confidence is too low to be included in the gridded forecast (as was mentioned in the previous forecast discussion). Breezy easterly winds of 10-20 mph and gusts to around 30 mph are expected Monday in those locations prone to easterly winds. Dry conditions continue through at least Wednesday as shortwave ridging moves across the desert southwest. High temperatures warm to around normal Tuesday and then to 2-3 degrees above normal on Wednesday. Weak troughing occurs across the area Thursday/Friday, with the model solutions indicating only a very slight chance of precipitation (<10 percent) across far eastern areas. Most likely just virga and/or some sprinkles. Ridging then returns across the desert southwest next weekend into early the following week, with highs climbing back to 3-5 degrees above normal. && .AVIATION...Valid through 27/00Z. FEW-SCT clouds at 6k-9k ft AGL thru 26/03Z, then increasing high level cirrus clouds through the remainder of the forecast period. SCT-BKN clouds AOA 20k ft AGL aft 26/06Z. SFC wind WLY/NWLY at 7-12 kts thru 26/03Z and then variable wind at 10 kts or less between 26/03Z and 26/16Z. Increasing ELY/SELY SFC wind aft 26/16Z, with wind speeds of 10-18 kts and gusts to 20-28 kts aft 26/18Z. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...High pressure aloft will build in from the west resulting in dry conditions through at least Wednesday. There will be a very slight chance of light rainfall Thursday and Friday across eastern areas, with dry conditions returning next weekend. Below normal high temperatures will continue through Monday, warming to around normal Tuesday and then 2-3 degrees above normal Wednesday into next weekend. Breezy easterly winds of 10-20 mph and gusts to around 30 mph are expected Monday. Otherwise, 20-foot winds will generally be less than 15 mph and terrain driven Tuesday through Saturday. Minimum RH levels will lower into the 18-28 percent range by Wednesday. && .TWC WATCHES/WARNINGS/ADVISORIES...None. && $$ Zell Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson