Severe Thunderstorm Warning 11, NWS Phoenix, AZ

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
300 PM MST TUE SEP 22 1987

THUNDERSTORMS AND SHOWERS HAVE BEEN SCATTERED OVER SOUTHWEST AND
WEST CENTRAL ARIZONA THROUGHOUT THE DAY.

THE HEAVIEST THUNDERSTORMS INDICATED BY RADAR...SATELLITE AND BY
REPORTS FROM OBSERVERS HAVE BEEN IN THE LATE MORNING AND EARLY
AFTERNOON. WICKENBURG WAS HIT BY WINDS UP TO 40 MPH AND BRIEF
HEAVY RAIN BEFORE 1 PM. A REPORT OF ABOUT ONE QUARTER INCH OF
R,AIN CAME FROM MESA AROUND 11 AM.

RADAR AND SATELLITE INDICATED THE HEAVIEST STORMS AS OF 3 PM
WERE IN SOUTHWEST ARIZONA FROM SOUTH OF TUCSON TO WESTERN MARICOPA
AND WESTERN YAVAPAI COUNTIES.

BJOREM

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
400 PM MST TUE SEP 22 1987

...INCREASING THUNDERSTORM ACTIVITY IN THE DESERTS...

SINCE 3 PM...THUNDERSTORM ACTIVITY HAS INCREASED RAPIDLY OVER THE
DESERTS WEST OF TUCSON AND SOUTH AND SOUTHWEST OF PHOENIX. SO FAR
THERE HAVE BEEN NO INDICATIONS OF HEAVY RAIN OR DAMAGING WINDS. BUT
LIGHTNING DETECTORS SHOW AN UNUSUAL NUMBER OF LIGHTNING STRIKES
...MUCH AS THEY DID LAST EVENING.

RADAR SHOWS THE SHOWERS MOVING TOWARD THE NORTH AROUND 20 TO 25 MPH.
THIS GIVES PHOENIX A GOOD CHANCE FOR A THUNDERSTORM THIS EVENING
...ESPECIALLY THE WEST SIDE OF THE CITY. RUSH HOUR TRAFFIC COULD
ENCOUNTER STRONG WINDS AND BLOWING DUST...FOLLOWED BY BRIEF HEAVY
SHOWERS AND POSSIBLY SOME HAIL. SOME MINOR STREET FLOODING COULD
OCCUR.

ELSEWHERE AROUND ARIZONA...AT LEAST SOME THUNDERSTORMS ARE DEVELOPING
IN JUST ABOUT ALL PARTS OF THE STATE. BUT OUTSIDE THE DESERT REGION
...THEY HAVE BEEN RELATIpVELY SMALL AND WIDELY SCATTERED.

ONCE AGAIN...THUNDERSTORMS SHOULD REACH A PEAK AROUND SUNSET AND THEN
GRADUALLY DIMINISH DURING THE NIGHT. BUT SOME COULD LINGER THRU MOST
MOST OF THE NIGHT...ESPECIALLY IN WESTERN ARIZONA.

TENHARKEL

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YUMA AZ
455 PM MST TUE SEP 22 1987

   ...STRONG THUNDERSTORMS ARE DEVELOPING IN YUMA COUNTY...

AT 445 THE STORMS WERE RAPIDLY DEVELOPING IN YUMA COUNTY...MOVING TO
THE NORTHWEST NEAR 20 MPH. HEAVY SHOWERS...HALF INCH HAIL...AND WINDS
GUSTING NEAR 40 MPH HAVE BEEN REPORTED.

THUNDERSTORMS WILL CONTINUE INTO THE EVENING AND AFTER MIDNIGHT IN
YUMA AND LAPAZ COUNTIES. THE MOST SIGNIFICANT THREAT WILL BE STRONG
GUSTY WINDS AND RUNNING WATER IN NORMALLY DRY WASHES.

MOTORISTS SHOULD DRIVE WITH CAUTION...AND BE ON THE LOOKOUT FOR
HAZARDOUS CONDITIONS.

MATHESON