Flash Flood Warning 33, NWS Phoenix, AZ

AZZ007 070700

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YUMA AZ
1030 AM MST MON AUG 6 1990

..STRONG THUNDERSTORMS ARE LIKELY OVER THE LOWER DESERTS THIS AFTERNOON
AND TONIGHT...

SATELLITE PICTURES SHOW A LOT OF MOISTURE FROM SONORA MEXICO CROSSING
THE BORDER AND MOVING TO THE NORTHWEST. AT THE SAME TIME...UNDER MOSTLY
CLEAR SKIES...THE TEMPERATURE IS CLIMBING AT A BREAKNECK PACE...UP TO
100 DEGREES AT 10 AM AT THE YUMA AIRPORT.

ALL OF THE INGREDIENTS ARE THERE FOR STRONG THUNDERSTORMS DEVELOPING
OVER THE MOUNTAINS OF SOUTHWEST ARIZONA THIS AFTERNOON...AND AS THE
MEXICAN MOISTURE SPREADS INTO THE AREA...HEAVY THUNDERSTORMS WILL LIKELY
BE WIDESPREAD LATE THIS AFTERNOON AND INTO THE NIGHT.

PRECAUTIONS SHOULD BE TAKEN IN PREPARATION FOR HEAVY RAINS AND STRONG
WINDS. LISTEN TO THE NATIONAL WEATHER SERVICE RADIO...AT 162.55 MHZ AND
TO THE LOCAL MEDIA FOR UPDATES.

MATHESON

AZZALL-062300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
200 PM MST MON AUG 6 1990

AT 2 PM RADAR AND SATELLITE PICTURES SHOWED THUNDERSTORMS DEVELOPING
OVER THE NORTHWEST AND SOUTHEAST QUARTERS OF THE STATE.

OVER MOHAVE COUNTY THUNDERSTORMS WERE MOVING TOWARD THE SOUTHWEST ABOUT
20 MPH. THESE STORMS COULD RESULT IN HEAVY RAIN AND STRONG GUSTY WINDS
ALONG THE COLORADO RIVER NORTH OF PARKER DAM BY 4 PM. THUS PEOPLE IN
THIS AREA SHOULD WATCH WEATHER CONDITIONS CLOSELY.

THE THUNDERSTORMS OVER SOUTHEAST ARIZONA WERE MOVING TOWARD THE NORTH
AND WEST ABOUT 15 MPH. DOUGLAS AND FORT HUACHUCA HAVE REPORTING STEADY
RAIN THE PAST 3 OR 4 HOURS...WITH TEMPERATURES REMAINING IN THEr MIDDLE
60S. MOTORISTS...HIKERS...AND CAMPERS IN THIS AREA WILL NEED TO WATCH
FOR SUDDEN HEAVY RAINS THAT COULD RESULT IN FLASH FLOODING OF NORMALLY
DRY CREEKS...LOW AREAS ON ROADS...AND WASHES.
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JP 062100Z