Area Forecast Discussion
Issued by NWS Tucson, AZ

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FXUS65 KTWC 242135
AFDTWC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
235 PM MST SAT JAN 24 2015

.SYNOPSIS...SEASONAL DAYTIME TEMPERATURES AND EASTERLY BREEZES WILL
PREVAIL THIS WEEKEND. INCREASING MOISTURE FROM THE SOUTH WILL BRING
THICKENING CLOUDS AND WIDESPREAD SHOWERS TO SOUTHERN ARIZONA MONDAY
INTO EARLY TUESDAY.

&&

.DISCUSSION...HIGH CLOUDS CONTINUE TO THIN AS THEY EDGE NORTHWARD
INTO SE AZ FROM SONORA.  ABUNDANT SUNSHINE...BREEZY EAST WINDS AND
DRY AIR HAS ALLOWED TEMPERATURES TO WARM NICELY THIS AFTERNOON.
UPPER LOW CHURNING WEST OF BAJA CA WILL EVENTUALLY SEND DEEPER
MOISTURE NORTHWARD BUT NOT BEFORE ANOTHER STELLAR AFTERNOON ACROSS
SE AZ WITH SUNDAY TEMPS EVEN A DEGREE OR TWO WARMER THAN TODAY.

FOR SE AZ...EXPECT THE BULK OF THE RAIN ASSOCIATED WITH THE LOW
PRESSURE AREA TO OCCUR DURING THE DAYTIME MONDAY INTO MONDAY EVENING
WITH A FEW LINGERING SHOWERS MONDAY NIGHT INTO TUESDAY. FAIRLY QUICK
MOVING SHOWERS SHOULD LEAD TO MOST AREAS SEEING AT LEAST SOME RAIN
ALTHOUGH AMOUNTS IN ANY GIVEN LOCATION ARE NOT EXPECTED TO BE ALL
THAT HEAVY.  IN GENERAL...A QUARTER TO HALF INCH RAIN AMOUNTS WILL
BE COMMON. WITH SUCH A WARM AIR MASS...SNOW LEVELS WILL BE AROUND
THE HIGHER MOUNTAIN TOPS AND VERY LITTLE SNOW ACCUMULATION IS
ANTICIPATED WITH THIS PARTICULAR ROUND OF PRECIPITATION.

CLOUDS AND RAIN WILL AFFECT TEMPERATURES AS MOST SPOTS STRUGGLE TO
REACH NORMAL HIGHS MONDAY. AS CLOUDS EXIT THE AREA TUESDAY...
TEMPERATURES SHOULD REBOUND TO NORMAL READINGS IN THE AFTERNOON. THE
WARMEST DAYS OF THE WEEK MAY BE WEDNESDAY AND THURSDAY.

ANOTHER PACIFIC WEATHER SYSTEM WILL BEGIN TO SPREAD CLOUDS INTO SE
AZ THURSDAY WITH A DECENT CHANCE FOR PRECIPITATION FRIDAY INTO
SUPERBOWL WEEKEND.

&&

.AVIATION...VALID THRU 26/00Z.
VFR CONDITIONS WILL PREVAIL THROUGH THE PERIOD. HIGH CLOUDS WILL BE
ON THE INCREASE FROM SOUTH TO NORTH OVER THE NEXT 24 HOURS. EASTERLY
SURFACE WINDS WILL CONTINUE THROUGH THE PERIOD. SPEEDS OF 10-15 KTS
WITH GUSTS UP TO 25 KTS WILL WEAKEN TO LESS THAN 10 KTS AFTER
SUNDOWN. A SLIGHT INCREASE IN SPEEDS WILL OCCUR AGAIN SUNDAY
MORNING...GENERALLY AT 8-12 KTS WITH GUST TO 20 KTS POSSIBLE.
AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS.

&&

.FIRE WEATHER...GUSTY EAST TO SOUTHEAST WINDS WILL OCCUR FOR MUCH OF
THE AREA OVER THE NEXT COUPLE OF DAYS. SPEEDS WILL BE 10-15 MPH WITH
A FEW HIGHER GUSTS MAINLY DURING THE DAYTIME. DRY CONDITIONS WILL
PERSIST THROUGH TOMORROW. AN INCREASE IN MOISTURE AND A HIGH
POTENTIAL OF SHOWERS WILL OCCUR MONDAY MORNING THROUGH TUESDAY
MORNING. THE BEST CHANCE FOR SHOWERS WILL BE MONDAY INTO MONDAY
EVENING. DRY WEATHER WILL RETURN TUESDAY AFTERNOON THROUGH THURSDAY
BEFORE ANOTHER DISTURBANCE BRINGS A THREAT OF SHOWERS ONCE AGAIN
LATE NEXT WEEK AND INTO THE WEEKEND.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON

DROZD






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