603
FXUS65 KTWC 270828
AFDTWC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
128 AM MST TUE JAN 27 2026
SYNOPSIS
DRY CONDITIONS WILL PREVAIL THIS WEEK. TEMPERATURES WARM
TO NEAR NORMAL FROM TUCSON WESTWARD TODAY AND WITHIN A FEW DEGREES
OF NORMAL EAST OF TUCSON. FOR THE REST OF THE WEEK INTO WEEKEND,
TEMPERATURES WARM TO ABOVE NORMAL LEVELS.
DISCUSSION
A VERY BENIGN WEATHER PATTERN THROUGH THE FORECAST
PERIOD FOR SOUTHEAST ARIZONA. LATEST WV IMAGERY SHOWS SHORTWAVE
RIDGING CURRENTLY BUILDING IN ALOFT AS LEFTOVER HIGH LEVEL CLOUDS
MOVE OUT EARLY THIS MORNING WITH CLEAR SKIES RETURNING. EASTERLY
BREEZES DIMINISH TODAY WITH TEMPERATURES BUMPING UP TO SEASONABLE
LEVELS FROM TUCSON WESTWARD, BUT STILL REMAINING A FEW DEGREES BELOW
NORMAL EAST OF TUCSON.
ANOTHER ROUND OF HIGH LEVEL CLOUDS IS EXPECTED WEDNESDAY AS A WEAK
SHORTWAVE MOVES THROUGH THE BROADER RIDGING. THEREAFTER,
NORTHWESTERLY FLOW ALOFT THURSDAY AND FRIDAY OUT AHEAD OF STRONGER
RIDGING ALOFT BUILDING IN. THAT RIDGING WILL REMAIN IN CONTROL THIS
WEEKEND, ALTHOUGH ENSEMBLES SHOW A WEAK UPPER LOW UNDERCUTTING IT TO
OUR SOUTH SUNDAY INTO MONDAY. TEMPERATURES WILL AVERAGE 3 TO 8
DEGREES ABOVE NORMAL DURING THE PERIOD FROM WEDNESDAY INTO EARLY
NEXT WEEK.
AVIATION
VALID THROUGH 28/12Z.
MAINLY SKC THROUGH 28/04Z THEN SCT CLOUDS AOA 20K FT AGL THRU THE
END OF THE FORECAST PERIOD. SFC WINDS MAINLY ELY/SELY AT 12 KTS OR
LESS THRU 27/20Z, THEN BECOMING VARIABLE THEREAFTER THRU THE END OF
THE FORECAST PERIOD. AVIATION DISCUSSION NOT UPDATED FOR TAF
AMENDMENTS.
FIRE WEATHER
HIGH PRESSURE ALOFT WILL PREVAIL THROUGH THE
WEEKEND, AS THE STORM TRACK STAYS WELL TO OUR NORTH. HIGH
TEMPERATURES NEAR NORMAL TODAY, THEN WARMING TO ABOVE NORMAL LEVELS
WEDNESDAY THROUGH THE WEEKEND. EASTERLY WINDS DIMINISH TODAY BUT
STILL REMAIN AT AROUND 10-15 MPH THIS MORNING INTO EARLY AFTERNOON
BEFORE BECOMING MORE VARIABLE IN DIRECTION AND LIGHTER. 20-FOOT
WINDS WILL GENERALLY BE LESS THAN 15 MPH AND TERRAIN DRIVEN
WEDNESDAY THROUGH SUNDAY. MINIMUM RH LEVELS WILL MOSTLY BE IN THE 15
TO 25 PERCENT RANGE THROUGH THE WEEKEND.
TWC WATCHES/WARNINGS/ADVISORIES
NONE.
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