SAN BERNARDINO CA-
445 PM PDT SUN JUL 20 2008

...A FLASH FLOOD WARNING REMAINS IN 
EFFECT UNTIL 515 PM PDT FOR WEST
CENTRAL SAN BERNARDINO COUNTY..

AT 433 PM PDT...THE CALIFORNIA HIGHWAY 
PATROL REPORTED LARGE AREAS
OF FLASH FLOODING ON STATE ROUTE 247 
NEAR MILE MARKER 76. DOPPLER
RADAR INDICATED THAT HEAVY RAIN HAD 
ENDED OVER THE BARSTOW AREA AND
NO ADDITIONAL RAINFALL IS EXPECTED 
THROUGH 515 PM.

EXCESSIVE RUNOFF FROM THE PREVIOUS 
HEAVY RAINFALL WILL CONTINUE TO
CAUSE FLOODING OF WASHES...DRAINAGE 
AREAS...HIGHWAYS...STREETS AND
LOW WATER CROSSINGS BEFORE RECEDING. 
WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN.

SAN BERNARDINO CA-RIVERSIDE CA-
323 PM PDT SUN JUL 20 2008

.THE SMALL STREAM FLOOD ADVISORY 
REMAINS IN EFFECT UNTIL 430 PM PDT FOR 
CNTL RIVERSIDE & SO. CNTL SAN 
BERNARDINO COUNTIES.

AT 323 PM PDT NATL WEATHER SVC RADAR 
INDICATED THAT OVER TWO INCHES OF RAIN 
HAS FALLEN OVER PORTIONS OF JOSHUA TREE 
NATL PARK. SPECIFICALLY.THE RAIN 
APPEARS TO BE CONCENTRATED OVER THE 
COTTONWOOD MOUNTAINS.JUST WEST OF THE 
COTTONWOOD VISITORS CENTER. WATER WILL 
LIKELY BE FLOWING ALONG THE SMOKE TREE 
WASH.THE PORCUPINE WASH.& ALONG 
COTTONWOOD CANYON. THIS MAY IMPACT 
TRAVEL ALONG COTTONWOOD SPRINGS ROAD/EL 
DORADO MINE ROAD.

ADDITIONAL RAINFALL AMOUNTS OF AN INCH 
WILL BE POSSIBLE IN THE ADVISED AREA.

DO NOT DRIVE YOUR VEHICLE INTO AREAS 
WHERE THE WATER COVERS THE ROADWAY. THE 
WATER DEPTH MAY BE TOO GREAT TO ALLOW 
YOUR CAR TO CROSS SAFELY. IT TAKES ONLY 
A FEW INCHES OF SWIFTLY FLOWING WATER 
TO CARRY VEHICLES AWAY. MOVE TO HIGHER 
GROUND.

THE NATL WEATHER SVC IN LAS VEGAS HAS 
ISSUED A

* FLASH FLOOD WARNING FOR.
 WEST CNTL SAN BERNARDINO COUNTY IN SE CA.

* UNTIL 515 PM PDT.

* AT 306 PM PDT.NATL WEATHER SVC 
DOPPLER RADAR INDICATED
 VERY HEAVY RAIN FROM A THUNDERSTORM 
NEAR BARSTOW. THE STORM WAS  MOVING NO. AT 5 MPH.

* THE THUNDERSTORM PRODUCING VERY HEAVY 
RAIN WILL BE OVER.  BARSTOW & NEARBY 
AREAS OF INTERSTATE 15 & STATE ROUTE 
58  AROUND 330 PM PDT.

OVER 2 INCHES OF RAIN ARE POSSIBLE WITH 
THIS STORM IN LESS THAN ONE HOUR.

THE NATL WEATHER SVC IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WARNING FOR.
 WEST CNTL SAN BERNARDINO COUNTY IN SE CA.

* UNTIL 515 PM PDT.

* AT 306 PM PDT.NATL WEATHER SVC 
DOPPLER RADAR INDICATED
 VERY HEAVY RAIN FROM A THUNDERSTORM 
NEAR BARSTOW. THE STORM WAS  MOVING NO. 
AT 5 MPH.

* THE THUNDERSTORM PRODUCING VERY HEAVY 
RAIN WILL BE OVER.  BARSTOW & NEARBY 
AREAS OF INTERSTATE 15 & STATE ROUTE 
58  AROUND 330 PM PDT.

OVER 2 INCHES OF RAIN ARE POSSIBLE WITH 
THIS STORM IN LESS THAN ONE HOUR.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. 
NEVER DRIVE YOUR VEHICLE INTO AREAS 
WHERE THE WATER COVERS THE ROADWAY. 
FLOOD WATERS ARE USUALLY DEEPER THAN 
THEY APPEAR. JUST ONE FOOT OF FLOWING 
WATER IS POWERFUL ENOUGH TO SWEEP 
VEHICLES OFF THE ROAD. WHEN 
ENCOUNTERING FLOODED ROADS MAKE THE 
SMART CHOICE.TURN AROUND.DONT DROWN.

* AT 232 PM PDT NATIONAL WEATHER 
SERVICE RADAR INDICATED ONE TO ONE
AND A HALF INCHES OF RAIN HAS FALLEN 
ACROSS THE DESERT MOUNTAINS
NEAR JOSHUA TREE NATIONAL PARK. THE 
AREAS PRIMARILY IMPACTED INCLUDE
COTTONWOOD SPRINGS ROAD FROM INTERSTATE 
TEN TO TWENTYNINE
PALMS...AND INTERSTATE TEN NEAR DESERT 
CENTER. ADDITIONAL RAINFALL
AMOUNTS OF UP TO ONE INCH WILL BE 
POSSIBLE OVER THE NEXT TWO HOURS
IN THE ADVISED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL 
WILL CAUSE NORMALLY DRY WASHES
TO RUN. NEVER DRIVE ACROSS FLOODED 
ROADWAYS...AS LITTLE AS SIX
INCHES OF MOVING WATER CAN FLOAT A 
VEHICLE.

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE SAN DIEGO CA
148 PM PDT SUN JUL 20 2008

CAZ055-060-202200-
SAN BERNARDINO COUNTY MOUNTAINS-APPLE 
AND LUCERNE VALLEYS-
148 PM PDT SUN JUL 20 2008


.NOW..
SCATTERED SHOWERS AND THUNDERSTORMS 
WILL CONTINUE THROUGH 3 PM THIS
AFTERNOON. THE HEAVIEST STORMS WILL 
AFFECT THE APPLE AND VICTOR
VALLEYS...NORTH THROUGH ORO GRANDE AND 
HELENDALE THROUGH 230 PM.
LOCALLY HEAVY RAIN IS POSSIBLE FROM THE 
HEAVIER CELLS...RESULTING IN
SOME PONDING OF WATER IN LOW LYING AND 
POORLY DRAINED AREAS. THESE
THUNDERSTORMS WILL AFFECT I-15 AS WELL. 
A FLASH FLOOD WATCH IS IN
EFFECT THROUGH THIS EVENING. 
THUNDERSTORMS PRODUCE DANGEROUS
LIGHTNING...AND MAY PRODUCE GUSTY 
WINDS...HEAVY DOWNPOURS AND HAIL.

FIRE WEATHER PLANNING FORECAST FOR EXTREME SOUTHWESTERN CALIFORNIA
NATIONAL WEATHER SERVICE SAN DIEGO CA
330 AM PDT SUN JUL 20 2008

.DISCUSSION...
A SURGE OF MONSOONAL MOISTURE WILL BRING HIGHER HUMIDITIES AND 
COOLER DAYTIME TEMPERATURES TO INLAND AREAS THROUGH MONDAY ALONG 
WITH A CHANCE OF MAINLY AFTERNOON AND EVENING SHOWERS AND 
THUNDERSTORMS. MODEST DRYING WILL DECREASE THUNDERSTORM CHANCES 
MIDWEEK WITH INCREASING CHANCES LATE IN THE WEEK AS ANOTHER SURGE OF 
MOISTURE ARRIVES FROM THE SOUTHEAST.

SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-
330 AM PDT SUN JUL 20 2008

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND 
                    THUNDERSTORMS IN THE MORNING...THEN CHANCE OF 
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. 
MAX TEMPERATURE.....84 TO 94. 
MIN HUMIDITY........20 TO 30 PERCENT ON DESERT SLOPES TO 25 TO 35 
                    PERCENT ON COASTAL SLOPES. 
WIND (20 FT)........ 
   SLOPES...........UPSLOPE 3 TO 6 MPH BECOMING SOUTH 15 MPH AND 
                    GUSTY IN THE AFTERNOON. 
   RIDGETOP.........VARIABLE 2 TO 5 MPH BECOMING SOUTH 10 MPH IN 
                    THE AFTERNOON. 
LAL.................3. {Transcriber note: LAL=Lightning Activity Level}

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY...BECOMING PARTLY CLOUDY. CHANCE 
                    OF SHOWERS AND THUNDERSTORMS IN THE 
                    EVENING...THEN SLIGHT CHANCE OF SHOWERS AND 
                    THUNDERSTORMS AFTER MIDNIGHT. 
MIN TEMPERATURE.....48 TO 58. 
MAX HUMIDITY........55 TO 65 PERCENT ON DESERT SLOPES TO 80 TO 90 
                    PERCENT ON COASTAL SLOPES. 
WIND (20 FT)........ 
   SLOPES...........WINDS SOUTH 10 MPH IN THE EVENING BECOMING 
                    DOWNSLOPE 2 TO 5 MPH. 
   RIDGETOP.........WINDS SOUTH 10 MPH IN THE EVENING BECOMING 
                    VARIABLE 2 TO 5 MPH. 
LAL.................3...BECOMING 2 EARLY IN THE MORNING. 

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE SAN DIEGO CA
905 AM PDT SUN JUL 20 2008

CAZ055-060-201730-
SAN BERNARDINO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS-
905 AM PDT SUN JUL 20 2008


.NOW..
THUNDERSTORMS WILL CONTINUE OVER THE 
APPLE AND LUCERNE VALLEYS AND
DEVELOP OVER THE SAN BERNARDINO 
MOUNTAINS THROUGH 1030 AM.
THUNDERSTORMS WILL BE ACCOMPANIED BY 
DANGEROUS LIGHTNING AND MAY
PRODUCE GUSTY WINDS...BRIEF HEAVY 
DOWNPOURS AND SMALL HAIL. AT 9
AM DOPPLER RADAR SHOWED AN AREA OF 
THUNDERSTORMS NORTH OF JOHNSON
VALLEY MOVING NORTH AT 15 MPH.

FLOOD WATCH
NATIONAL WEATHER SERVICE SAN DIEGO CA
344 AM PDT SUN JUL 20 2008

...FLASH FLOOD WATCH IN EFFECT FOR THE MOUNTAINS AND DESERTS FROM
11 AM TO 9 PM TODAY..

.INCREASING MONSOONAL MOISTURE WILL BRING SCATTERED THUNDERSTORMS
TO THE MOUNTAINS AND DESERTS TODAY. HEAVY DOWNPOURS MAY PRODUCE FLASH
FLOODING. BURN AREAS ARE MOST SUSCEPTIBLE WHERE A THIRD OF AN INCH
IN 30 MINUTES MAY PRODUCE FLASH FLOODING AND DEBRIS FLOWS.

CAZ055-056-058-060>062-201800-
/O.CON.KSGX.FF.A.0006.080720T1800Z-080721T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
344 AM PDT SUN JUL 20 2008

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 11 AM PDT THIS
MORNING THROUGH THIS EVENING..

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF SOUTHWEST CALIFORNIA...INCLUDING THE FOLLOWING
  AREAS...APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY..
  RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO COUNTY MOUNTAINS..
  SAN DIEGO COUNTY DESERTS AND SAN DIEGO COUNTY MOUNTAINS.

* FROM 11 AM PDT THIS MORNING THROUGH THIS EVENING

* SLOW MOVING THUNDERSTORMS WITH HEAVY DOWNPOURS ARE EXPECTED
  TODAY. THE POTENTIAL FOR FLASH FLOODING IN THE AFTERNOON AND
  EVENING EVENING IS MODERATE. PEOPLE TRAVELING IN THE MOUNTAINS
  AND DESERTS MAY ENCOUNTER VERY HEAVY RAIN...FLASH FLOODING...AND
  POSSIBLE DEBRIS FLOWS IN THE BURN AREAS.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. MONITOR THE LATEST FORECASTS AND CONDITIONS..
AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE
ISSUED.

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SAN DIEGO CA
654 AM PDT SUN JUL 20 2008

CAZ048-055-056-061-201700-
/O.NEW.KSGX.FA.Y.0005.080720T1354Z-080720T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
654 AM PDT SUN JUL 20 2008

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR..
  SAN BERNARDINO COUNTY IN SOUTHEAST CALIFORNIA..  RIVERSIDE COUNTY
  IN SOUTHWEST CALIFORNIA..

* UNTIL 1000 AM PDT

* AT 654 AM PDT A GROUP OF THUNDERSTORMS WERE MOVING THROUGH PALM
SPRINGS AND THE SURROUNDING AREA TOWARD THE NORTHWEST INTO THE SAN
BERNARDINO MOUNTAINS.

THE RAINFALL IS HEAVY ENOUGH TO PRODUCE FLOODING IN STREETS IN URBAN
AREAS AROUND PALM SPRINGS. FLOODING IS LIKELY IN SMALL STREAMS AND
WASHES IN THE SURROUNDING STEEP TERRAIN.

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN DIEGO CA
400 AM PDT SUN JUL 20 2008

CAZ055-056-058-060-062-202300-
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS-
SAN DIEGO COUNTY DESERTS-
400 AM PDT SUN JUL 20 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME
SOUTHWESTERN CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

FLASH FLOOD WATCH...SEE LAXFFASGX. THE FLASH FLOOD POTENTIAL INDEX
IS MODERATE...THUNDERSTORMS ARE EXPECTED TO DEVELOP AND ISOLATED
FLASH FLOODING IS POSSIBLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

FOR MONDAY...THE FLASH FLOOD POTENTIAL INDEX IS MODERATE..
THUNDERSTORMS ARE EXPECTED TO DEVELOP AND ISOLATED FLASH FLOODING IS
POSSIBLE.