National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FXUS65 KTWC 182007
AFDTWC

Area Forecast Discussion
National Weather Service Tucson AZ
107 PM MST Thu Apr 18 2024

.SYNOPSIS... High pressure will bring dry conditions and a strong
warming trend into next week. A weak passing weather system will
bring breezy conditions on Friday.

&&

.DISCUSSION... A broad zonal flow across the state today with
heights and thicknesses supporting temperatures around 7-10
degrees above average the next couple of days. Some breeziness
Friday afternoon with a passing weak weather system, but remaining
dry across SE AZ.

Weak troughiness over the weekend will stall the warming trend,
with a broad low amplitude ridge pushing temps up a few more
degrees early next week.

Late next week a weather system may pass through the area
bringing gusty winds and decreasing temperatures back towards
normal. There is a still a degree of uncertainty with this
possible weather system, more to come.

&&

.AVIATION...Valid 20/00z
SCT to BKN clouds AOA 20-25k ft AGL have been moving in from the
west today and will clear out of the area around 19/14z becoming
SKC for the remainder of the forecast period. SFC winds will be
fairly weak this afternoon around 5-10 kts from the west-northwest
with gusts to 15 kts becoming light and variable overnight.
Tomorrow afternoon winds will be stronger around 10-15 kts from
the southwest with gusts to 25 kts. Aviation discussion not
updated for TAF amendments.

&&

.FIRE WEATHER... Dry with a strong warming trend across SE AZ
into next week. Minimum relative humidity values generally below
12% in valleys, dropping to single digits at times. Typical
diurnal wind trends most of the week, with a breezy Friday
afternoon as a weak dry weather system pushes across.

&&

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

Public...Malarkey

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson