Area Forecast Discussion
Issued by NWS Tucson, AZ

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FXUS65 KTWC 031632
AFDTWC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
930 AM MST TUE MAR 3 2015

.SYNOPSIS..A FOLLOW UP SYSTEM WILL MOVE ALONG OR JUST SOUTH OF THE
INTERNATIONAL BORDER TONIGHT INTO WEDNESDAY AND BRING ANOTHER CHANCE
OF VALLEY RAIN AND MOUNTAIN SNOW...MAINLY NEAR THE INTERNATIONAL
BORDER. DRY CONDITIONS AREAWIDE AND WARMER TEMPERATURES STARTING
THURSDAY INTO THE WEEKEND.

&&

.DISCUSSION...WESTERN EDGE OF PLUME OF MOISTURE THAT IS OVER FAR SE
COCHISE COUNTY THIS MORNING IS SLOWLY MOVING E. VALLEY RAIN/MOUNTAIN
SNOW DOWN THERE HAS SLOWLY BEEN DIMINISHING IN THE PAST COUPLE OF
HOURS. MADE SOME ADJUSTMENTS TO THE FORECAST IN A RECENT UPDATE.

WATER VAPOR IMAGERY THIS MORNING SHOWED AN UPPER LOW OFF NRN BAJA
COAST WHICH IS FURTHER SOUTH VERSUS THE ONE THAT WAS OFF THE SRN CA
COAST ON MONDAY. THIS UPPER LOW WILL DIG A LITTLE FURTHER S THIS
MORNING BEFORE PUTTING ON THE LEFT BLINKER AND HEAD E. FURTHER N
THERE IS AN UPPER LEVEL TROF THAT WILL MOVE THRU THE GREAT BASIN
TODAY WITH BOTH SYSTEMS KINDA PHASING TOGETHER LATER TONIGHT INTO
WEDNESDAY. THESE FEATURES WILL BRING ANOTHER CHANCE OF PRECIPITATION
TO THE AREA WITH THE BEST CHANCES BEING ALONG/NEAR THE INTERNATIONAL
BORDER ASSOCIATED WITH THE LOW MOVING ACROSS NRN SONORA MEXICO.

&&

.AVIATION...VALID THRU 04/15Z
SCTD CUMULUS DECKS AT 3-6KFT AGL. CLOUDS INCREASING TONIGHT INTO
WEDNESDAY MORNING. CHANCE OF SHOWERS RETURNING TO THE AREA TONIGHT
WITH BEST CHANCE BEING ALONG THE INTERNATIONAL BORDER. LIGHT AND
VARIABLE SFC WIND THIS MORNING BECOMING SW AT 10-20 KTS WITH GUSTS
25-30 KTS. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS.

&&

.FIRE WEATHER...ANOTHER WEATHER SYSTEM WILL IMPACT THE AREA LATE
TONIGHT INTO WEDNESDAY FOR ANOTHER CHANCE OF SHOWERS ESPECIALLY NEAR
THE INTERNATIONAL BORDER. DRY AND WARMER THURSDAY ONWARD.

&&

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

&&

$$

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