062
FXUS65 KTWC 290842
AFDTWC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
142 AM MST THU JAN 29 2026
SYNOPSIS
AN UPPER RIDGE OF HIGH PRESSURE ALONG THE WEST COAST
WILL RESULT IN DRY AND WARM CONDITIONS FOR SOUTHEAST ARIZONA THROUGH
THE WEEKEND. SOME EASTERLY BREEZES ARE EXPECTED THIS WEEKEND,
OTHERWISE EXPECT AFTERNOON HIGH TEMPERATURES 4 TO 9 DEGREES ABOVE
NORMAL THROUGH THIS WEEKEND WITH SLIGHTLY COOLING EARLY NEXT WEEK.
DISCUSSION
BROAD RIDGING CONTINUES TO DOMINATE OUR WEATHER
PATTERN HOWEVER SOME WEAK DISTURBANCES EMBEDDED WITHIN THAT RIDGING
WILL CONTINUE TO RESULT IN CONSIDERABLE HIGH LEVEL CLOUDS TODAY.
CLOUDS WILL LIKELY BE A BIT LESS OVERALL THAN YESTERDAY AND START TO
DIMINISH FROM NORTHWEST TO SOUTHEAST THIS AFTERNOON. OTHERWISE, VERY
LITTLE CHANGE FROM YESTERDAY WITH HIGHS SLIGHTLY ABOVE NORMAL.
RIDGING WILL BUILD IN FRIDAY AND THIS WEEKEND WITH INCREASED HEIGHTS
AND WARMING TEMPERATURES WITH MOSTLY SUNNY SKIES. AT THE SURFACE,
EASTERLY BREEZES ARE EXPECTED SATURDAY AND PERHAPS CONTINUING INTO
SUNDAY WITH SUSTAINED WINDS OF 10 TO 20 MPH WITH GUSTS UP TO AROUND
25 TO 30 MPH IN THE MORE SUSCEPTIBLE LOCATIONS FOR EAST WINDS. WE
START TO SEE SOME DIFFERENCES EARLY TO MID NEXT WEEK IN SOME OF THE
DETAILS IN HOW THE RIDGING STARTS TO BREAK DOWN BUT OVERALL NOT
EXPECTING ANY REAL SENSIBLE WEATHER CHANGES FOR US OTHER THAN SOME
GRADUAL COOLING AS DRY CONDITIONS PREVAIL EARLY NEXT WEEK.
AVIATION
VALID THROUGH 30/12Z. SCT-BKN CEILINGS AT 15K-20K FT
THROUGH 29/21Z FOR MOST OF SOUTHEAST AZ WITH CLOUD COVERAGE
DECREASING FROM NORTHWEST TO SOUTHEAST THEREAFTER. SKIES BECOME SKC
FOR TERMINALS BETWEEN 30/04Z AND 30/07Z. SURFACE WINDS UNDER 10 KTS
AND TERRAIN DRIVEN. AVIATION DISCUSSION NOT UPDATED FOR TAF
AMENDMENTS.
FIRE WEATHER
AN UPPER RIDGE OF HIGH PRESSURE ALONG THE WEST COAST
WILL RESULT IN DRY AND WARM CONDITIONS FOR SOUTHEAST ARIZONA INTO
EARLY NEXT WEEK. EXPECT AFTERNOON HIGH TEMPERATURES 4-9 DEGREES
ABOVE NORMAL. WINDS GENERALLY LIGHT AND TERRAIN DRIVEN, MAINLY UNDER
12 MPH. EASTERLY WINDS WILL INCREASE THIS WEEKEND, WITH WINDS OF 10-
20 MPH LIKELY SATURDAY WITH HIGHER GUSTS, MAINLY IN LOCATIONS
EXPOSED TO EAST WIND. MINIMUM RH LEVELS IN THE VALLEYS WILL BE IN
THE 15 TO 25 PERCENT RANGE THROUGH THE WEEKEND.
TWC WATCHES/WARNINGS/ADVISORIES
NONE.
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