HEAVY RAIN EXPECTED LATE TUESDAY THROUGH WEDNESDAY

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HEAVY RAIN EXPECTED LATE TUESDAY THROUGH WEDNESDAY

NATIONAL WEATHER SERVICE SAN DIEGO CA
100 PM PDT SUN OCT 17 2004

ORANGE COUNTY COASTAL AREAS CA-RIVERSIDE COUNTY MOUNTAINS CA-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS THE INLAND EMPIRE CA-
SAN BERNARDINO COUNTY MOUNTAINS CA-SAN DIEGO COUNTY COASTAL AREAS CA-
SAN DIEGO COUNTY MOUNTAINS CA-SAN DIEGO COUNTY VALLEYS CA-
SANTA ANA MOUNTAINS AND FOOTHILLS CA-
100 PM PDT SUN OCT 17 2004

...HEAVY RAIN EXPECTED LATE TUESDAY THROUGH WEDNESDAY...

SCATTERED SHOWERS WILL CONTINUE THROUGH TUESDAY IN A MOIST WEST FLOW
ALOFT. A STRONG STORM APPROACHING FROM THE NORTHWEST WILL BEGIN TO
ENHANCE RAINFALL TUESDAY AFTERNOON. HEAVY SHOWERS ARE EXPECTED TO
DEVELOP TUESDAY NIGHT AND CONTINUE INTO WEDNESDAY.

THERE COULD BE LOCAL RAINFALL ACCUMULATIONS UP TO AN INCH THROUGH
TUESDAY MORNING ON THE WEST FACING MOUNTAIN SLOPES...WITH LESS AT
THE LOWER ELEVATIONS. MUCH LARGER RAINFALL ACCUMULATIONS ARE
EXPECTED LATE TUESDAY INTO WEDNESDAY IN STRONG SOUTHWEST FLOW.
PRELIMINARY RAINFALL ESTIMATES FOR TUESDAY AFTERNOON THROUGH
WEDNESDAY ARE FOR ABOUT HALF TO ONE INCH IN THE COASTAL AREAS...ONE
TO TWO INCHES IN THE VALLEYS...TWO TO FOUR INCHES ON THE WEST FACING
MOUNTAIN SLOPES...AND LESS THAN HALF AN INCH IN THE DESERTS.
RAINFALL TOTALS WILL GENERALLY BE GREATER IN THE NORTHERN AREAS AND
LESS TO THE SOUTH. HOWEVER...SOME OF THE SOUTHWEST FACING MOUNTAIN
SLOPES IN SAN BERNARDINO AND RIVERSIDE COUNTIES COULD GET UP TO FIVE
INCHES OF RAIN.

THE HEAVY RAIN WILL CAUSE POTENTIAL FLOODING PROBLEMS EVERYWHERE
FROM THE MOUNTAINS WESTWARD TO THE COAST. THERE COULD BE LOCAL MUD
SLIDES AND DEBRIS FLOW...ESPECIALLY IN AND BELOW THE RECENTLY BURNED
AREAS. THERE COULD ALSO BE URBAN AND SMALL STREAM FLOODING AND THE
RAIN WILL CAUSE SLICK ROADS.

THE SNOW LEVEL WILL START ABOVE 7000 FEET BUT WILL EVENTUALLY LOWER
TO NEAR 5000 FEET BY LATE WEDNESDAY NIGHT. STRONG AND POTENTIALLY
DAMAGING WINDS WILL ACCOMPANY THIS STORM IN THE MOUNTAINS...
ESPECIALLY AT THE HIGHER ELEVATIONS OF THE SAN BERNARDINO AND
RIVERSIDE COUNTY MOUNTAINS. THERE WILL ALSO BE STRONG GUSTY WINDS
IN THE NORTHERN DESERTS NEAR THE APPLE AND YUCCA VALLEYS.

PEOPLE IN EXTREME SOUTHWESTERN CALIFORNIA SHOULD BE PREPARED FOR
THIS APPROACHING STORM AND STAY INFORMED ON THE DEVELOPING WEATHER.
SHOWERS WILL TAPER OFF WEDNESDAY NIGHT AND END DURING THE DAY
THURSDAY IN DRIER NORTHWEST FLOW ALOFT.

$$

ATKIN


EDIS-10-17-04 1322 PDT