Area Forecast Discussion
Issued by NWS Tucson, AZ

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FXUS65 KTWC 230943

Area Forecast Discussion
National Weather Service Tucson AZ
243 AM MST Sat Sep 23 2023

.SYNOPSIS...High pressure and dry westerly flow will be in
control of our weather into next week. This will result in
mostly clear conditions into next week with temperatures
generally running a few degrees above normal, peaking on
Tuesday and Wednesday at 5 to 8 degrees warmer than normal.


.DISCUSSION...Satellite imagery at 230 am should an extensive
layer of mid-level clouds over western Arizona including western
Pima county moving to the NE with scattered cirrus over the rest
of southeast Arizona. This mid-level desk will move over over Pima
and Pinal counties through about 9-10 am. Otherwise expect a
mostly sunny and warm late September day.

Pretty benign forecast through the end of next week with above
normal high temperatures, with warmest highs in the Tuesday thru
Thursday time frame. Periods of high cloud along with occasional
afternoon breezes, enhanced at times by a passing weak upper level


.AVIATION...Valid through 24/12z.
Thru 23/17z mainly from KTUS W and N...SCT-BKN clouds 10k-12k ft
MSL. Otrw SKC to SCT cirrus clouds AOA 20k ft MSL. SFC winds
terrain driven and less than 10 kts thru 23/17z and then after
24/04z. At other times, SWLY-NWLY SFC winds 10-15 kts with ocnl
gusts to 25 kts. Aviation discussion not updated for TAF


.FIRE WEATHER...Dry weather will prevail through the period with
minimum relative humidity values mainly 10-15 percent from Tucson
west, 15-20 percent in eastern valleys and 20-30 percent over the
higher elevations. Overnight recoveries will be mostly fair
except occasionally poor over higher elevations above the
inversion. More typical September wind patterns are expected today
well into next week, with some afternoon breeziness at times.





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