Area Forecast Discussion
Issued by NWS Tucson, AZ

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FXUS65 KTWC 250406
AFDTWC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
905 PM MST MON NOV 24 2014

.SYNOPSIS...COOLER AND DRIER AIR INVADING FROM THE NORTH WILL SETTLE
OVER THE AREA AND COMBINE TO USHER IN COLDER OVERNIGHT LOWS TONIGHT
INTO WEDNESDAY MORNING. HIGH PRESSURE WILL BRING A STRONG WARMING
TREND THE SECOND HALF OF THE WEEK WITH A RATHER MILD THANKSGIVING.

&&

.DISCUSSION...COLD NIGHT ACROSS THE REGION AGAIN TONIGHT WITH
EASTERN PIMA COUNTY SEEING A LITTLE MORE COVERAGE IN FREEZING
TEMPERATURES TUESDAY MORNING. THE FREEZE WARNING FOR THIS AREA WILL
BE IN EFFECT FROM MIDNIGHT TO 8 AM TUESDAY. OTHER CONCERN TONIGHT IS
THE TIGHTENING PRESSURE GRADIENT WHICH WILL BRING SOME LOCALIZED
GUSTY EAST WINDS AT THE LOWER LEVELS AND GUSTY N TO E WINDS IN THE
MOUNTAINS. HAVE ALREADY SEEN SOME LOCALIZED GUSTS IN THE MOUNTAINS
IN THE 30 TO 45 MPH RANGE. WENT AHEAD AND RAN OUT A QUICK UPDATE TO
HANDLE STRONGER WINDS IN THE MOUNTAINS OVERNIGHT AND SOME SHORT TERM
TEMPERATURE/DEWPOINT TRENDS.

&&

.AVIATION...VALID THRU 26/00Z.
CLR WITH A FEW WISPS OF CIRRUS PASSING THRU FROM TIME TO TIME. NW
WINDS 8-12 KTS BECOMING LIGHT AFT 25/02Z THEN BECOMING NE TO E TO 10
KTS AFT 25/08Z. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS.

&&

.FIRE WEATHER...GUSTY WINDS...MAINLY FROM THE N TO E...UP TO 35 MPH
WILL CONTINUE OVERNIGHT ACROSS THE HIGHER TERRAIN BEFORE EASING ON
TUESDAY. LOW LEVEL 5-15 MPH EASTERLIES ARE EXPECTED TUESDAY THROUGH
THURSDAY. THE VERY DRY AIR MASS WILL REMAIN IN PLACE INTO WEDNESDAY
BEFORE SLOWLY MODERATING THROUGH THE REMAINDER OF THE WEEK.
DRY...MILD WITH LIGHT WINDS INTO SATURDAY DUE TO AN UPPER LEVEL
RIDGE. THEN LATE THIS WEEKEND INTO EARLY NEXT WEEK AN UPPER TROUGH
WILL SLIDE INTO THE AREA AND BRING THE POTENTIAL FOR ELEVATED WINDS
AND A CHANCE OF PRECIPITATION.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
  FREEZE WARNING TUESDAY MORNING FROM MIDNIGHT TO 8 AM FOR AZZ504.

&&

$$

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