Severe Thunderstorm Warning 48, NWS Phoenix, AZ

Issued

Sep 3, 1990, 3:41 PM MST (22:41 UTC)

Expired

Sep 3, 1990, 5:45 PM MST

In force

2 hr

Issued by

NWS Phoenix, AZ

Area

Whole counties

Counties La Paz County, AZ, Yuma County, AZ

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

000 
TTAA00 KYUM 032241
SVRYUM
AZC029-027-040045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE YUMA AZ
341 PM MST MON SEP 3 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
AND FLASH FLOOD WARNING EFFECTIVE UNTIL 545 PM MST FOR PEOPLE 
IN THE FOLLOWING COUNTIES

   IN THE SOUTHWEST PART OF ARIZONA
      LA PAZ...EASTERN YUMA

AT 330 PM THUNDERSTORMS WERE DEVELOPING OVER CENTRAL AND EASTERN
LA PAZ COUNTY...AND OVER EASTERN YUMA COUNTY NEAR DATELAND. THE
STORMS WERE MOVING TO THE NORTHWEST AT 15 MPH...AND REPORTS OF
STORMS EARLIER THIS AFTERNOON DESCRIBED HEAVY RAINS...SMALL HAIL...
RUNNING WASHES...AND STRONG GUSTY WINDS.

SEVERE THUNDERSTORMS CAUSE DAMAGING WINDS...LARGE HAIL AND DEADLY
LIGHTNING. MOVE INSIDE A REINFORCED BUILDING OR STORM SHELTER. GO
TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM
WINDOWS.

MOBILE HOMES ARE IN DANGER FROM SEVERE THUNDERSTORM WINDS...
ESPECIALLY IF THEY HAVE NOT BEEN TIED DOWN. FOR YOUR SAFETY...TAKE
SHELTER IN A STRONG BUILDING. IF YOUR TRAILER PARK HAS A STORM
SHELTER...USE IT.

WATCH OUT FOR FLASH FLOODING. STAY AWAY FROM STREAMS AND AVOID
NARROW...STiEEP WALLED CANYONS. DONT DRIVE ACROSS FLOODED STREAMS
OR WASHES...OR INTO FLOODED CITY STREETS OR UNDERPASSES.

In the hours before

AZZALL-032200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX ARIZONA
1140 AM MST MON SEPT 3 1990

...SCATTERED SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN AND
   STRONG WINDS MOVING OVER WESTERN MOHAVE COUNTY...AND DEVELOPING
   ELSEWHERE IN ARIZONA...

AT 1135 AM MST...WEATHER RADAR AND SATELLITE PHOTOS INDICATED RAPID
DEVELOPMENT OF THUNDERSTORMS IN ARIZONA. THE STRONGEST STORMS WERE
OVER WESTERN MOHAVE COUNTY...AS WELL AS IN THE WHITE MOUNTAIN AREA.
OTHER THUNDERSTORMS WERE INCREASING IN COVERAGE AND INTENSITY IN MUCH
OF THE NORTH AND EAST HALVES OF ARIZONA. GENERAL STORM MOVEMENT WAS
TO THE NORTH AND NORTHEAST AT 20 MPH.

SINCE THE ATMOSPHERE IS UNUSUALLY MOIST...ANY SHOWERS FALLING FROM
THUNDERSTORMS COULD BE QUITE HEAVY.  ITS NOT UNLIKELY THAT A SUDDEN
CLOUDBURST COULD DROP MORE THAN AN INCH OF RAIN IN A SHORT TIME...AND
CAUTION IS URGED.
<
DUE TO THE RANDOM NATURE OF THUNDERSTORMS ITS HARD TO PREDICT PRECISELY
WHO WILL GET THE HEAVY RAIN.  SOIL CONDITIONS AROUND ARIZONA ARE FAIRLY
SATURATED FROM PERVIOUS RAINS...WHICH HEIGHTENS THE POTENTIAL FOR RAPID
RUNOFF IN NORMALLY DRY WASHES AND CANYONS.

HOLIDAY RECREATIONALISTS AROUND THE STATE...INCLUDING BOATERS AND
CAMPERS...SHOULD BE ALERT FOR WEATHER CHANGES IN YOUR AREA TODAY.

BOATERS AND THOSE OUTDOORS ALONG THE LOWER COLORADO RIVER IN MOHAVE
COUNTY SHOULD BE ESPECIALLY ON THE ALERT FOR STRONG THUNDERSTORMS
DUIRING THE NEXT FEW HOURS.

THE VERY HUMID AND UNSTABLE WEATHER PATTERN WILL ALSO CONTINUE OVER
THE STATE THROUGH TUESDAY.

FRANJEVIC
MWF 09/03/1841Z

Severe Thunderstorm Warnings in Arizona, 1990Every severe thunderstorm warning in 1990

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.