SPECIAL WEATHER STATEMENT
Issue Date: 446 PM MST SAT NOV 28 2009
Expiration: 500 AM MST SUN NOV 29 2009
...WINTER TYPE STORM TO BRING DESERT RAIN AND MOUNTAIN SNOW THIS
WEEKEND...
A STRONG AND COLD PACIFIC LOW PRESSURE SYSTEM WILL CONTINUE TO MOVE
INTO THE REGION THIS WEEKEND...BRINGING SOME DESERT RAIN AND
MOUNTAIN SNOW.
SOUTHEAST CALIFORNIA AND SOUTHWEST ARIZONA...
THE HEART OF THE LOW PRESSURE SYSTEM WILL TRACK ACROSS SOUTHEAST
CALIFORNIA AND SOUTHWEST ARIZONA TONIGHT AND EARLY SUNDAY MORNING...
WITH CLEARING SKIES AND COLDER WEATHER EXPECTED BY SUNDAY AFTERNOON.
THE AIRMASS IS COLD ENOUGH TO PRODUCE SNOW SHOWERS AT ELEVATIONS
ABOVE 4500 FEET TONIGHT...BUT WITH LITTLE SNOW ACCUMULATION
EXPECTED. HIGHER ELEVATIONS ABOVE 4500 FEET INCLUDE JOSHUA TREE
NATIONAL PARK.
SOUTH CENTRAL ARIZONA...
THE PACIFIC LOW PRESSURE WILL TRACK INTO SOUTH CENTRAL ARIZONA
SATURDAY NIGHT...INCLUDING PHOENIX AND VICINITY...PRODUCING A CHANCE
OF SHOWERS AND POSSIBLY A SATURDAY EVENING THUNDERSTORM. THE BEST
CHANCE OF SHOWERS WILL DEVELOP OVER THE HIGHER TERRAIN NORTH AND EAST
OF PHOENIX...INCLUDING ALL OF SOUTHERN GILA COUNTY WHERE SNOW LEVELS
WILL FALL TO NEAR 5000 FEET THROUGH SUNDAY MORNING. SNOW ACCUMULATIONS
OF LESS THAN 2 INCHES ARE POSSIBLE ABOVE 5000 FEET.
ON SUNDAY AND SUNDAY NIGHT...THE CENTER OF THE LOW PRESSURE SYSTEM
WILL SLOWLY TRACK ACROSS SOUTH CENTRAL ARIZONA...CONTINUING THE
CHANCE OF DESERT SHOWERS WITH MOUNTAIN SNOW ABOVE 4500 FEET.
SNOW MAY INTENSIFY A BIT OVER THE SAN CARLOS INDIAN RESERVATION ABOVE
4500 FEET LATE SUNDAY NIGHT AND MONDAY MORNING...WITH ACCUMULATIONS
OF 2 TO 3 INCHES POSSIBLE ABOVE 5000 BY MONDAY MORNING.
STAY UP-TO-DATE ON THE LATEST FORECASTS BY LISTENING TO WEATHER RADIO
ON THE PUBLIC SERVICE BAND. MORE DETAILED INFORMATION IS AVAILABLE
FROM THE NATIONAL WEATHER SERVICE IN PHOENIX ON THE INTERNET AT
WEATHER.GOV/PHOENIX
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