Severe Thunderstorm Warning 9, NWS Phoenix, AZ

000 
WWUS55 KPSR 052235
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
332 PM MST SAT MAR 5 2005

AZC013-052315-
/O.CON.KPSR.SV.W.0009.000000T0000Z-050305T2315Z/
MARICOPA AZ-
332 PM MST SAT MAR 5 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 415 PM MST FOR
CENTRAL MARICOPA COUNTY...

AT 326 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL. 
THIS STORM WAS LOCATED 8 MILES SOUTHWEST OF RAINBOW VALLEY...OR ABOUT
18 MILES NORTHEAST OF GILA BEND...MOVING NORTHEAST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL SLOWLY WEAKEN AS IT MOVES TO THE 
NORTHEAST THROUGH 415 PM. VERY HEAVY RAIN IS ALSO OCCURRING.

LAT...LON 3266 11293 3271 11233 3330 11237 3332 11310

$$

SIPPLE

AZZ020>028-CAZ030>033-060545-

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
230 PM MST SAT MAR 5 2005

SOUTHWEST AND SOUTH-CENTRAL ARIZONA...AND SOUTHEAST CALIFORNIA
FORECAST DISCUSSION

.SYNOPSIS...
A PACIFIC LOW PRESSURE SYSTEM WILL CONTINUE TO MOVE SLOWLY EASTWARD
ACROSS SOUTHERN ARIZONA TONIGHT AND SUNDAY. AS A RESULT...THERE IS A
CHANCE FOR SHOWERS AND THUNDERSTORMS THROUGH SUNDAY EVENING ACROSS
MAINLY SOUTHWEST AND SOUTH CENTRAL ARIZONA. HIGH PRESSURE WILL BUILD
ACROSS THE REGION NEXT WEEK FOR DRY AND WARMER WEATHER.

&&

.DISCUSSION...
ITS BECOMING A CONVECTIVELY ACTIVE WEATHER DAY IN SOUTH CENTRAL AZ.
RADAR ALREADY DETECTED A COUPLE OF SMALL MULTICELLULAR STORMS
...MOSTLY OUTSIDE OUR FORECAST AREA IN SOUTHERN AZ. AS THE UPPER LOW
SLOWLY TRACKS EASTWARD...NEARLY PARALLEL TO THE ARIZONA/MEXICAN
BORDER... SOUTH CENTRAL AZ WILL STILL BE DYNAMICALLY UNSTABLE
THROUGH 03Z. WAVES OF INSTABILITY WITH VORTICITY LOBES ARE FORECAST
TO ROTATE FROM SOUTHWEST TO NORTHEAST ACROSS SOUTH CENTRAL AZ. SPC
DISCUSSIONS HAVE HIGHLIGHTED THE POTENTIAL FOR LOCALLY DAMAGING
WINDS AND LARGE HAIL.

THE UPPER LOW CENTER SHIFTS INTO PARTS OF SOUTH CENTRAL AZ TONIGHT
AND SUNDAY. THE PROXIMITY OF THE UPPER LOW...WITH BACKWASH
CLOUDINESS...WILL CONTINUE THE THREAT FOR SHOWERS AND ISOLATED
THUNDERSTORMS SUNDAY AND SUNDAY EVENING.

THE UPPER LOW BECOMES A POSITIVE TILT TROF AS IT MOVES INTO FAR
SOUTHEAST AZ BY EARLY MONDAY MORNING...BRINGING AN END TO THE
UNSETTLED REGIME. LARGE SCALE ANTICYCLONIC FLOW MOVES INTO THE STATE
NEXT WEEK FOR DRY AND WARMER WEATHER.

&&

.PSR WATCHES/WARNINGS/ADVISORIES...

AZ...NONE.

CA...NONE.

&&

VASQUEZ

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
931 AM MST SAT MAR 5 2005

AZZ021>028-060416-
GREATER PHOENIX AREA-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
NORTHWEST MARICOPA COUNTY-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHWEST DESERTS-SOUTHWEST MARICOPA COUNTY-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-
931 AM MST SAT MAR 5 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SOUTHWEST AND SOUTH CENTRAL
ARIZONA DESERTS AND MOUNTAINS...INCLUDING THE GREATER PHOENIX AREA.

.DAY ONE...TODAY
A PACIFIC LOW PRESSURE SYSTEM WILL MOVE INTO SOUTHERN ARIZONA TODAY.
THE AIRMASS WILL BECOME INCREASINGLY UNSTABLE THIS AFTERNOON AND
EVENING FOR THUNDERSTORM ACTIVITY. THUNDERSTORMS WILL BE MOVING
SOUTH TO NORTH...AND CAPABLE OF PRODUCING STRONG WINDS TO 45 MPH...
HAIL...DENSE BLOWING DUST...AND FREQUENT LIGHTNING. THUNDERSTORM
ACTIVITY WILL SLOWLY DIMINISH AFTER 10 PM.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
THE PACIFIC LOW PRESSURE SYSTEM WILL SLOWLY MOVE EAST...INTO
SOUTHEAST ARIZONA BY LATE SUNDAY. UNSETTLED WEATHER WILL CONTINUE
SUNDAY ACROSS MOST OF SOUTHWEST AND SOUTH CENTRAL ARIZONA...MAINLY IN
THE FORM OF SHOWERS AND ISOLATED THUNDERSTORMS.

CLEAR WEATHER IS EXPECTED MONDAY THROUGH FRIDAY AS HIGH PRESSURE
REBUILDS OVER THE AREA.