Cortaro, Arizona Weather Forecast Discussion

340
FXUS65 KTWC 281002
AFDTWC
Area Forecast Discussion
National Weather Service Tucson AZ
302 AM MST Sun Sep 28 2025
.SYNOPSIS...Drier air has moved in across the area which will
limit the chance of showers and thunderstorms today. High
temperatures will be below normal this weekend then warm this
week under dry conditions.
&&
.DISCUSSION...The upper low over SE CA this morning will lift NE
into nrn AZ today and open up. With a drier air mass in place,
only expecting isolated showers and thunderstorms mainly NE of
Tucson this afternoon. High temperatures will once again run
several degrees below normal. Dry conditions this upcoming week
as we close out September and Monsoon 2025 and move into October
with with warming high temperatures as high pressure builds over
the area.
&&
.AVIATION...Valid through 29/12Z.
SKC-SCT 8k-10k ft AGL. ISOLD -SHRA/-TSRA northeast of a KTUS-KDUG
line aft 28/18z. SFC winds SELY less than 10 kts thru 28/17z then
again aft 29/03z. At other times, SFC winds SWLY at 8-15 kts.
Aviation discussion not updated for TAF amendments.
&&
.FIRE WEATHER...Isolated showers and thunderstorms today, mainly
east of Tucson. Generally winds will be south to southwest
through this week with speeds up to 15 mph and gusts up to 20-25
mph. Minimum RHs between 25-35 percent today will lower through
the week as a drier airmass becomes more established across
Southeast Arizona, lowering to 15-25 percent the second half of
the upcoming work week. Temperatures will be slightly below normal
today, warming to above normal by midweek.
&&
.TWC WATCHES/WARNINGS/ADVISORIES...None.
&&
$$
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NWS TWC Office Area Forecast Discussion