Wind Advisory 12, NWS Phoenix, AZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
245 AM MST SUN APR 4 2010

.SYNOPSIS...
WARM AND DRY WEATHER WILL CONTINUE TODAY...HOWEVER ANOTHER
RELATIVELY DRY PACIFIC LOW PRESSURE SYSTEM WILL SWEEP ACROSS THE
REGION MONDAY. BREEZY TO LOCALLY WINDY WEATHER...ASSOCIATED WITH AN
APPROACHING COLD FRONT...WILL DEVELOP THIS EVENING IN SOUTHEAST
CALIFORNIA. GUSTY WEST WINDS WILL SPREAD ACROSS MOST OF ARIZONA ON
MONDAY. COOLER TEMPERATURES ARE ALSO EXPECTED MONDAY AND
TUESDAY...WITH WARMER TEMPERATURES DEVELOPING AGAIN NEXT WEDNESDAY
THROUGH SATURDAY.

&&

.DISCUSSION...
DRY WESTERLY FLOW ALOFT WILL CONTINUE TODAY WITH AFTERNOON
TEMPERATURES NEAR OR SLIGHTLY ABOVE NORMAL.  HOWEVER...ANOTHER
PACIFIC WEATHER SYSTEM WILL MOVE INTO THE WESTERN STATES LATE
TONIGHT THROUGH MONDAY NIGHT. AS A DRY COLD FRONT APPROACHES
SOUTHERN CA...GUSTY WINDS TO 40 MPH ARE EXPECTED IN THE IMPERIAL
VALLEY ZONE 33. A WIND ADVISORY WILL BE POSTED FOR IMPERIAL COUNTY
FOR LATE THIS AFTERNOON AND EVENING WITH GUSTS TO 40 MPH EXPECTED.

A DRY COLD FRONT WILL MOVE WEST TO EAST ACROSS ARIZONA MONDAY.
GUSTY WEST WINDS WILL THEREFORE SPREAD ACROSS MOST OF THE STATE.
GUSTY WINDS WILL APPROACH WIND ADVISORY CRITERIA AGAIN IN SOUTHEAST
CA MONDAY...BUT REMAIN UNDER 40 MPH OVER THE REMAINDER OF THE
FORECAST AREA...SOUTHWEST AND SOUTH CENTRAL AZ.

DRY WEATHER WITH COOLER TEMPERATURES ARE ALSO EXPECTED MONDAY AND
TUESDAY...WARMING WEDNESDAY THROUGH SATURDAY.

&&

.AVIATION...
PERIODS OF FEW/SCT HIGH CLOUDS THROUGH SUNDAY MORNING ALONG WITH
GENERALLY LIGHT DIURNAL WIND PATTERNS. EXCEPTION WILL BE SOUTHEAST
CALIFORNIA AND THE LOWER CO RIVER VALLEY WHERE BREEZY SOUTHWEST TO
WEST WINDS WILL DEVELOP AFTER 22Z SUN...SPECIFICALLY AT KIPL. EXPECT
GUSTS TO 25KT AT KIPL/KBLH TO PERSIST INTO THE EVENING HOURS SUNDAY.
DO NOT EXPECT WINDS TO BE STRONG ENOUGH TO CAUSE BLOWING DUST/SAND
PROBLEMS.

AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.

&&

.FIRE WEATHER...
MONDAY THROUGH FRIDAY...
A STORM SYSTEM WILL PASS THROUGH UTAH AND NORTHERN ARIZONA MONDAY
WHICH WILL BRING ABOUT AN INCREASE IN WINDS DURING THE AFTERNOON
HOURS. THE AIR WILL ALSO BE FAIRLY DRY AND COMBINED WITH THE WARM
TEMPERATURES MIN RH VALUES WILL FALL INTO THE TEENS AND 20S. WINDS
AND RH VALUES WILL APPROACH CRITICAL VALUES MONDAY AFTERNOON BUT
RIGHT NOW IT APPEARS TO BE A BORDERLINE EVENT. WEAKER WINDS AND
WARMER TEMPERATURES RETURN FOR MID-WEEK. RH VALUES WILL REMAIN
FAIRLY LOW DURING THE AFTERNOON WITH MODEST OVERNIGHT RECOVERY.

&&

.PSR WATCHES/WARNINGS/ADVISORIES...

AZ...NONE.

CA...WIND ADVISORY FROM 4 PM THIS AFTERNOON TO 2 AM PDT MONDAY
     CAZ033.

     WIND ADVISORY FROM 2 PM TO 9 PM PDT MONDAY CAZ033.

&&

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT
WEATHER.GOV/PHOENIX

DISCUSSION...VASQUEZ
AVIATION...CB
FIRE WEATHER...WANEK/INIGUEZ

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
534 AM MST SAT APR 3 2010

AZZ020-CAZ031>033-041245-
LOWER COLORADO RIVER VALLEY AZ-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
534 AM MST SAT APR 3 2010 /534 AM PDT SAT APR 3 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME WEST-
CENTRAL ARIZONA AND EXTREME SOUTHEAST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

NO WEATHER HAZARDS EXPECTED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A LOW PRESSURE SYSTEM WILL MOVE ACROSS UTAH AND NORTHERN ARIZONA ON
MONDAY. THIS WILL CAUSE WINDY CONDITIONS TO DEVELOP THROUGH OUT THE
IMPERIAL AND LOWER COLORADO RIVER VALLEYS AND EASTERN RIVERSIDE
COUNTY. WESTERLY WINDS OF 20 TO 30 MPH WITH GUSTS OVER 40 MPH WILL
BE POSSIBLE. THIS COULD MAKE TRAVEL DIFFICULT ON NORTH-SOUTH ROADS
ESPECIALLY FOR LARGE VEHICLES. BLOWING SAND AND DUST MAY ALSO REDUCE
VISIBILITY TO BELOW ONE MILE AT TIMES.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

SPOTTER ACTIVATION WILL NOT BE NEEDED.

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX