Area Forecast Discussion
Issued by NWS Tucson, AZ

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820
FXUS65 KTWC 220435
AFDTWC

Area Forecast Discussion
National Weather Service Tucson AZ
935 PM MST Sun Jan 21 2018

.SYNOPSIS...Much cooler temperatures continue, with a widespread
freeze Monday morning. Dry conditions with warmer temperatures
most of the week, before a trough brings cooler air and gusty
winds late in the week.

&&

.DISCUSSION...Chilly afternoon with highs in the mid 40s to mid
50s. Thin cirrus has been moving across the area since this
afternoon with thicker cirrus seen on satellite imagery upstream
over southern California and offshore.

This cloud cover may impact overnight lows, especially for areas
that are under a freeze warning. Latest HRRR hourly temperatures
are in line with our forecast lows. So will maintain freeze
warning for central/eastern Pima county and south-central Pinal
county.

Warmer Monday with warming trend continuing into mid-week.

&&

.AVIATION...Valid thru 23/00Z.
SCT-BKN cirrus mainly above 20k ft AGL thru valid pd. Some lclzd
gusts to 20 mph until 22/06z otrw sfc wind 10 kts or less thru
valid pd. Aviation discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Dry conditions will prevail over the next
week. East winds returning for Tuesday and Wednesday. A few
westerly breezes may return late in the work week.

&&

.CLIMATE...Ten days remain in January and based on temperatures to
date and the 7 day forecast, looks like Tucson is headed for top 5
warmest January on record. This would be the fourth straight month
with top 5 warmest status. When will it end!

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
 Freeze Warning from 1 AM to 9 AM MST Monday for AZZ502-504-505.

&&

$$

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