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Flash Flood Watch


FLOOD WATCH
NATIONAL WEATHER SERVICE SAN DIEGO CA
700 AM PDT WED AUG 20 2014

...FLASH FLOOD WATCH FOR THE VALLEYS...MOUNTAINS...AND DESERTS
THROUGH THIS EVENING...

.AN UPPER LEVEL LOW WILL MOVE OVER SOUTHERN CALIFORNIA
TODAY...BRINGING SHOWERS AND SCATTERED THUNDERSTORMS ACROSS THE
REGION. THESE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY
RAIN AND FLASH FLOODING...ESPECIALLY IN THE MOUNTAINS AND DESERTS.
FLASH FLOODING MAY BE POSSIBLE IN THE VALLEYS AS WELL...ESPECIALLY
ALONG THE FOOTHILL AREAS.

CAZ048-050-055>058-060>062-210000-
/O.NEW.KSGX.FF.A.0007.140820T1400Z-140821T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
700 AM PDT WED AUG 20 2014

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A

* FLASH FLOOD WATCH FOR A PORTION OF SOUTHWEST CALIFORNIA...
  INCLUDING THE FOLLOWING AREAS...APPLE AND LUCERNE VALLEYS...
  COACHELLA VALLEY...RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO
  COUNTY MOUNTAINS...SAN BERNARDINO AND RIVERSIDE COUNTY
  VALLEYS- THE INLAND EMPIRE...SAN DIEGO COUNTY DESERTS...SAN
  DIEGO COUNTY MOUNTAINS...SAN DIEGO COUNTY VALLEYS AND SANTA
  ANA MOUNTAINS AND FOOTHILLS.

* THROUGH THIS EVENING.

* SCATTERED THUNDERSTORMS CAPABLE OF PRODUCING HEAVY RAIN WILL BE
  POSSIBLE THROUGH THIS EVENING. FLASH FLOODING IS POSSIBLE WHERE
  HEAVY RAIN OCCURS AND SOME DISTANCE DOWNSTREAM.

* HEAVY RAINFALL WILL PRODUCE RUNOFF THAT COULD LEAD TO FLASH
  FLOODS...ESPECIALLY ALONG MOUNTAIN STREAMS...DESERT WASHES AND
  BELOW RECENTLY BURNED AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

PALMER


Marine Weather Statement


MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
1054 AM PDT WED AUG 20 2014

PZZ750-775-210600-
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
1054 AM PDT WED AUG 20 2014

...ISOLATED THUNDERSTORMS THROUGH THURSDAY MORNING OVER THE
COASTAL WATERS...

A LOW PRESSURE SYSTEM MOVING ACROSS THE REGION WILL CREATE THE
POSSIBILITY OF ISOLATED THUNDERSTORMS OVER THE COASTAL WATERS
THROUGH THURSDAY MORNING. STRONG AND GUSTY WINDS...LIGHT TO
MODERATE RAIN...CLOUD-TO-WATER LIGHTNING...ISOLATED WATERSPOUTS
AND CHOPPY SEAS WILL BE POSSIBLE NEAR STORMS THAT DEVELOP.
CONDITIONS WILL IMPROVE LATE THURSDAY MORNING AS THE DISTURBANCE
EXITS THE REGION.

$$

FOR THE LATEST MARINE FORECASTS...WARNINGS...AND OBSERVATIONS...VISIT:

HTTP://WEATHER.GOV/SANDIEGO/MARINE/MARINE.PHP?WFO=SGX

HARRISON

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
235 AM PDT WED AUG 20 2014

PZZ655-676-202300-
INNER WATERS FROM POINT MUGU TO SAN MATEO PT. CA INCLUDING SANTA
CATALINA AND ANACAPA ISLANDS-
OUTER WATERS FROM SANTA CRUZ ISLAND TO SAN CLEMENTE ISLAND TO
60 NM OFFSHORE INCLUDING SAN NICOLAS AND SANTA BARBARA ISLANDS-
235 AM PDT WED AUG 20 2014

...A SLIGHT CHANCE OF THUNDERSTORMS ACROSS SOUTHERN PORTIONS OF
THE COASTAL WATERS THROUGH THIS EVENING...

AN UPPER-LEVEL LOW PRESSURE SYSTEM DROPPING SOUTHWARD ACROSS THE
COASTAL WATERS WILL DRAW UP SOME MID LEVEL MOISTURE INTO THE
COASTAL WATERS THROUGH THIS EVENING. A SLIGHT CHANCE OF
THUNDERSTORMS IS FORECAST FOR THE SOUTHERN PORTIONS OF THE COASTAL
WATERS...MAINLY SOUTHEAST OF A LINE FROM POINT MUGU TO SAN NICOLAS
ISLAND.

ANY THUNDERSTORM THAT DEVELOPS WILL HAVE THE POTENTIAL TO PRODUCE
GUSTY WINDS...CHOPPY SEAS...SMALL HAIL...AND DANGEROUS CLOUD-TO-
WATER LIGHTNING.

BEFORE SETTING OFF AND WHILE UNDERWAY ALWAYS LISTEN TO NOAA
WEATHER RADIO FOR THE LATEST FORECASTS.

$$

RAT


Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
604 AM MST WED AUG 20 2014

AZZ020>028-CAZ030>033-211315-
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
604 AM MST WED AUG 20 2014 /604 AM PDT WED AUG 20 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST-CENTRAL
ARIZONA...EXTREME SOUTHWEST ARIZONA...EXTREME WEST-CENTRAL
ARIZONA...SOUTH-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST-CENTRAL
ARIZONA...EXTREME SOUTHEAST CALIFORNIA AND SOUTHEAST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORM ACTIVITY IS EXPECTED TO BE ISOLATED TODAY OVER THE
DESERTS. ANY STORMS THAT MANAGE TO FORM WILL BE CAPABLE OF BRIEF
HEAVY RAIN BUT MUCH LESS LIKELY TO PRODUCE FLASH FLOODING THAN WHAT
WAS EXPERIENCED IN PORTIONS OF ARIZONA YESTERDAY. THE STRONGEST
STORMS WILL HAVE DAMAGING WIND POTENTIAL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

STORM CHANCES INCREASE THURSDAY ALONG WITH THE POTENTIAL FOR DAMAGING
WINDS. LINGERING STORM CHANCES CONTINUE FRIDAY BEFORE DECLINING FROM
WEST TO EAST OVER THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD FOLLOW STANDARD REPORTING PROCEDURES.

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
600 AM PDT WED AUG 20 2014

CAZ034>041-044>046-051>054-059-087-088-547-548-211300-
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY-
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS-
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
SAN LUIS OBISPO COUNTY MOUNTAINS-
SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
ANTELOPE VALLEY-CATALINA ISLAND-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN FERNANDO VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
600 AM PDT WED AUG 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY AND TONIGHT

THERE IS A CHANCE OF A THUNDERSTORM TODAY OVER LOS ANGELES COUNTY
AND THE ADJACENT COASTAL WATERS AS WELL AS THE MOUNTAINS OF VENTURA
COUNTY.

* MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... THURSDAY THROUGH TUESDAY

ON THURSDAY AFTERNOON AND EVENING THERE IS A SLIGHT CHANCE OF A
THUNDERSTORM OVER LOS ANGELES AND VENTURA COUNTY
MOUNTAINS...OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

RORKE

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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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