Monday, February 18, 2013

Southern California Severe Weather Alert

Winter Storm Warning shaded in Pink
Winter Weather Advisory shaded in Blue
Wind Advisory shaded in Brown
High Wind Warning shaded in light Brown

...WINTER STORM WARNING IN EFFECT FROM 10 AM TUESDAY TO NOON PST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 10 AM
TUESDAY TO NOON PST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 3500 FEET...8 TO 16
  INCHES ABOVE 4500 FEET...WITH LOCAL ACCUMULATIONS EXCEEDING
  2 FEET ABOVE 7000 FEET.

* SNOW LEVELS...SNOW LEVELS LOWERING FROM 4500 TO 5000 FEET EARLY
  TUESDAY...TO AROUND 3500 FEET TUESDAY AFTERNOON...AND 2000 TO
  2500 FEET TUESDAY NIGHT THROUGH EARLY WEDNESDAY.

* TIMING...SNOW WILL BEGIN EARLY TUESDAY... AND INCREASE TUESDAY
  AFTERNOON. SNOW IS EXPECTED TO BECOME HEAVY AT TIMES TUESDAY
  EVENING...THEN DECREASE FROM THE NORTHWEST ON WEDNESDAY.

* WINDS...SOUTHWEST TO WEST WINDS 25 TO 40 MPH...WITH LOCAL GUSTS
  TO AROUND 75 MPH NEAR RIDGE TOPS AND ALONG DESERT MOUNTAIN
  SLOPES. STRONGEST WINDS WILL OCCUR LATE TUESDAY INTO WEDNESDAY
  MORNING.

* WIND CHILL...THE COMBINATION OF FALLING TEMPERATURES AND STRONG
  WINDS WILL RESULT IN LOCAL WIND CHILL VALUES OF ZERO TO 10 DEGREES
  BELOW ZERO LATE TUESDAY NIGHT AND EARLY WEDNESDAY...MAINLY ABOVE
  6500 FEET.

* VISIBILITY...REDUCED TO NEAR ZERO AT TIMES IN SNOW...BLOWING
  SNOW...AND DENSE FOG...ESPECIALLY TUESDAY NIGHT.

* IMPACTS...SNOW...BLOWING SNOW...AND DENSE FOG WILL CAUSE LOCAL
  VISIBILITY NEAR ZERO AT TIMES. SNOW WILL LIKELY IMPACT TRAVEL
  ALONG INTERSTATE 8 THROUGH THE SAN DIEGO COUNTY MOUNTAINS
  TUESDAY NIGHT AND EARLY WEDNESDAY...AND POSSIBLY INTERSTATE 10
  THROUGH BANNING PASS LATE TUESDAY NIGHT. THIS WEATHER MAY BE
  DEADLY FOR UNPREPARED CAMPERS AND HIKERS. TRAVELERS THROUGH THE
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER
  CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS
  BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND
  CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS.

* OUTLOOK...COOL BREEZY CONDITIONS WILL CONTINUE INTO FRIDAY...
  WITH ANOTHER CHANCE OF SNOW SHOWERS THURSDAY AND THURSDAY NIGHT.
  SNOW LEVELS SHOULD NOT BE QUITE AS LOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.


...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TUESDAY TO 8 PM
PST WEDNESDAY...

* LOCATION...ACROSS THE COACHELLA VALLEY AND SAN DIEGO COUNTY
  DESERTS...WITH THE STRONGEST WINDS THROUGH AND BELOW THE
  FAVORED PASSES AND CANYONS AS WELL AS NEAR THE DESERT SLOPES
  OF THE MOUNTAINS.

* TIMING...STRONGEST WINDS ARE EXPECTED LATE TUESDAY THROUGH
  WEDNESDAY MORNING.

* WINDS...AREAS OF WEST WINDS 25 TO 45 MPH...WITH GUSTS TO 65
  MPH. LOCAL GUSTS TO 75 MPH THROUGH AND BELOW THE FAVORED
  PASSES AND CANYONS AS WELL AS NEAR THE DESERT MOUNTAIN SLOPES.

* VISIBILITY...LOCALLY REDUCED BELOW ONE HALF MILE AT TIMES IN
  BLOWING DUST AND SAND...MAINLY TUESDAY THROUGH TUESDAY
  EVENING.

* IMPACTS...THE WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR MOTORISTS WITH HIGH PROFILE VEHICLES. AREAS OF BLOWING
  DUST AND SAND COULD LOCALLY REDUCE VISIBILITY AT TIMES. WATCH
  FOR BROKEN TREE LIMBS AND DOWNED POWER LINES.

* OUTLOOK...WINDS SHOULD GRADUALLY DECREASE WEDNESDAY AFTERNOON
  AND EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.


...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM TUESDAY TO 3 AM
PST WEDNESDAY ABOVE 2000 FEET...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
WEATHER ADVISORY ABOVE 2000 FEET FOR SNOW ...WHICH IS IN EFFECT
FROM 6 PM TUESDAY TO 3 AM PST WEDNESDAY.


* ELEVATION... ABOVE 2000 FEET.

* SNOW LEVELS...LOWERING TO 2000 TO 2500 FEET TUESDAY
  NIGHT...LOCALLY 1500 TO 2000 FEET IN ISOLATED THUNDERSTORMS AND
  HEAVIER SHOWERS.

* SNOW ACCUMULATIONS...LOCALLY 2 INCHES OR LESS.

* TIMING...TUESDAY EVENING THROUGH LATE TUESDAY NIGHT.

* LOCATIONS INCLUDE: BEAUMONT...YUCAIPA

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY REDUCED IN SNOW AND BLOWING SNOW.

* IMPACTS...A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS
  OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED
  FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE
  CAUTION WHILE DRIVING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.


...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM TUESDAY TO 10 AM PST
WEDNESDAY...

* WINDS...AREAS OF WEST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* TIMING...STRONGEST WINDS LATE TUESDAY AFTERNOON THROUGH LATE
  TUESDAY NIGHT.

* LOCATION...STRONGEST WINDS NEAR THE COAST.

* IMPACTS...THE WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR MOTORISTS WITH HIGH PROFILE VEHICLES. WATCH FOR BROKEN
  TREE LIMBS AND DOWNED POWER LINES.

* OUTLOOK...WINDS SLOWLY DECREASING FROM NORTH TO SOUTH
  WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

Please stay tuned to your local National Weather Service for all the latest on this latest storm that could have big impacts on Southern California. Stay safe and be prepared for any major impacts that this latest storm could cause.



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