116
FXUS65 KTWC 220952
AFDTWC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
252 AM MST SUN DEC 22 2024
SYNOPSIS
DRY WEATHER WITH ABOVE NORMAL TEMPERATURES WILL
PERSIST THROUGH EARLY THIS WEEK. NEAR RECORD HIGH TEMPERATURES
WILL BE POSSIBLE TODAY, TOMORROW AND CHRISTMAS EVE. A PASSING
WEATHER DISTURBANCE WILL THEN COOL AFTERNOON TEMPERATURES
BEGINNING CHRISTMAS DAY.
DISCUSSION
ALTHOUGH UPPER HEIGHTS ARE LOWERING, THE LOW LEVELS
REMAIN RATHER WARM WITH RECORD OR NEAR RECORD HIGHS CONTINUING
THROUGH CHRISTMAS EVE. SATELLITE IMAGERY THIS MORNING SHOWED
MOSTLY CLEAR CONDITIONS WITH A FEW WISPS OF CIRRUS PASSING THROUGH
UNDER W/NW FLOW ALOFT. THIS WILL BE CHANGING LATER TODAY AS THE
HIGH LEVEL CLOUD COVER OVER SRN CA MOVES ACROSS THE AREA.
AN UPPER LEVEL TROF MOVING THRU THE GREAT BASIN AND 4 CORNERS AREA
ON CHRISTMAS DAY WILL BRING COOLER TEMPERATURES TO THE AREA ALONG
WITH A CHANCE OF SNOW SHOWERS TO THE WHITE MOUNTAINS. THE WHITES
WILL SEE ANOTHER CHANCE OF SNOW SHOWERS LATE THURSDAY NIGHT INTO
FRIDAY MORNING.
AVIATION
VALID THROUGH 23/12Z.
SKC TO FEW THIN CIRRUS AOA 20K FT THRU 22/20Z THEN INCREASING
CLOUDS AOA 18K FT THRU THE END OF VALID PD. SFC WINDS TERRAIN
DRIVEN LESS THAN 10 KTS THRU 22/18Z THEN AGAIN AFTER 23/02Z. AT
OTHER HOURS SFC WINDS W/NW LESS THAN 10 KTS. AVIATION DISCUSSION
NOT UPDATED FOR TAF AMENDMENTS.
FIRE WEATHER
DRY CONDITIONS WITH ABOVE NORMAL TEMPERATURES
THROUGH THE FIRST HALF OF THIS WEEK. A PASSING DISTURBANCE IN THE
LATER IN THE WEEK WILL BRING COOLER TEMPERATURES AND A CHANCE OF
SHOWERS TO THE WHITE MOUNTAINS CHRISTMAS DAY AND FRIDAY. MINIMUM
RELATIVE HUMIDITY VALUES 10 TO 15 PERCENT IN THE VALLEYS INTO THE
MIDDLE OF THIS WEEK, WITH 15 TO 25 PERCENT EXPECTED IN THE HIGHER
TERRAIN. 20-FOOT WINDS WILL MAINLY BE LESS THAN 15 MPH THROUGH
THE THIS WEEK.
CLIMATE
RECORD OR NEAR RECORD HIGH TEMPERATURES NEXT 3 DAYS
DATE DEC 22 DEC 23 DEC 24
FCST RCD/YR FCST RCD/YR FCST RCD/YR
TUCSON INTL AIRPORT 80 82/1917 77 80/2021 79 79/1936
AJO 78 80/2016 77 81/2005 79 82/1955
KITT PEAK 64 64/1962 61 65/2005 62 64/2005
ORGAN PIPE CACTUS 80 82/1955 79 82/1950 79 82/1989
PICACHO PEAK 72 79/2005 72 78/2021 74 76/2005
SAFFORD AG STATION 73 73/2021 74 72/2005 72 73/1955
SIERRA VISTA FD 77 75/2000 73 75/1917 73 74/1971
TOMBSTONE 77 81/1950 72 77/1955 73 76/2021
WILLCOX 74 72/1955 72 73/2021 71 73/2021
DOUGLAS 76 73/2018 74 76/1955 73 74/1989
TWC WATCHES/WARNINGS/ADVISORIES
NONE.
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