...AN EXTENDED PERIOD OF HOT WEATHER EXPECTED ACROSS MUCH OF
SOUTHWESTERN CALIFORNIA THIS WEEK...
A STRONG UPPER LEVEL HIGH PRESSURE SYSTEM IS FORECAST TO STRENGTHEN
OVER SOUTHERN CALIFORNIA ON MONDAY...THEN REMAIN ANCHORED ACROSS THE
REGION THROUGH THURSDAY. THIS WILL LIKELY BRING A PROLONGED PERIOD OF
HOT WEATHER TO INLAND AREAS OF SOUTHWESTERN CALIFORNIA. WARMEST
VALLEY...MOUNTAIN...AND DESERT LOCATIONS ARE EXPECTED TO TOP 100
DEGREES ON MONDAY. THE WARMEST TEMPERATURES OF THIS HEAT WAVE ARE
GENERALLY EXPECTED ON TUESDAY AND WEDNESDAY...WHEN TRIPLE DIGIT HEAT
WILL BE COMMON ACROSS INLAND AREAS. VERY WARM CONDITIONS ARE EXPECTED
TO LINGER INTO THURSDAY.
IN ADDITION TO THE STRONG UPPER LEVEL HIGH PRESSURE SYSTEM...THERE
WILL BE WEAK OFFSHORE FLOW EACH MORNING THROUGH WEDNESDAY. AS A
RESULT...MANY PORTIONS OF THE COASTAL PLAIN WILL LIKELY EXPERIENCE
THE WARMEST WEATHER OF THE SUMMER SO FAR. INLAND PORTIONS OF THE
COASTAL PLAIN ARE EXPECTED TO SOAR WELL INTO THE 90S.
FURTHERMORE...OFFSHORE WINDS COULD BRING 90 DEGREE TEMPERATURES TO
SOME OF THE BEACHES ALONG THE CENTRAL COAST...SUCH AS AVILA BEACH...
SHELL BEACH AND PORT SAN LUIS.
DURING THE PEAK OF THE HEAT WAVE ON TUESDAY AND WEDNESDAY...THE FOLLOWING
TEMPERATURES CAN BE EXPECTED...
VALLEYS.................98-108 DEGREES.
LOWER MOUNTAINS.........96-107 DEGREES.
ANTELOPE VALLEY.........102-110 DEGREES.
INLAND COASTAL PLAIN....90-98 DEGREES.
THE COMBINATION OF VERY HOT TEMPERATURES AND MODERATE HUMIDITY READINGS
ON TUESDAY AND WEDNESDAY HAS PROMPTED AN EXCESSIVE HEAT WATCH TO
BE ISSUED FOR THE LOWER MOUNTAINS AND SOME VALLEY LOCATIONS.
IN ADDITION...THE PROLONGED NATURE OF THE HEAT WAVE...ALONG WITH
INCREASINGLY WARM NIGHTS THROUGH MID WEEK...WILL PREVENT SUFFICIENT
COOLING IN NON AIR-CONDITIONED PLACES...MAKING FOR POTENTIALLY DANGEROUS
CONDITIONS.
RESIDENTS OF SOUTHWESTERN CALIFORNIA SHOULD PREPARE FOR THE
LIKELIHOOD OF A LONG STRETCH OF HOT WEATHER. IF YOU PLAN TO BE
OUTSIDE FOR AN EXTENDED PERIOD OF TIME...STAY IN THE SHADE AS MUCH
AS POSSIBLE AND DRINK PLENTY OF WATER. LIMIT ANY OUTDOOR STRENUOUS
ACTIVITIES TO THE EARLY MORNING HOURS OR AFTER SUNDOWN...AND WEAR
LIGHT-COLORED AND LOOSE-FITTING CLOTHING. NEVER LEAVE CHILDREN...THE
ELDERLY OR PETS IN ENCLOSED AUTOMOBILES...EVEN FOR A SHORT PERIOD OF
TIME...EVEN WITH THE WINDOWS PARTIALLY OPEN...AS TEMPERATURES CAN
STILL QUICKLY RISE TO LIFE-THREATENING LEVELS.
$$
GOMBERG/BRUNO
SPECIAL WEATHER STATEMENTSource: http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=lox&wwa=special%20weather%20statement
NATIONAL WEATHER SERVICE SAN DIEGO CA
1039 PM PDT SUN AUG 22 2010
CAZ042-043-048-050-055>058-060>062-232300-
SAN DIEGO COUNTY COASTAL AREAS-
ORANGE COUNTY COASTAL AREAS-
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-
1039 PM PDT SUN AUG 22 2010
...HOT WEATHER ACROSS SOUTHERN CALIFORNIA THIS WEEK...
HIGH PRESSURE BUILDING OVER THE SOUTHWEST WILL BRING 3 TO 4 DAYS OF
HOT WEATHER THIS WEEK. THE HIGH WILL REMAIN NEARLY STATIONARY
TUESDAY AND WEDNESDAY...WHICH WILL BE THE HOTTEST DAYS OF THE WEEK.
TRIPLE DIGIT HIGHS WILL BE COMMON ACROSS THE VALLEYS AND FOOTHILLS
DURING THIS TIME.
EXPECTED HIGH TEMPERATURES TUESDAY AND WEDNESDAY...
INLAND ORANGE COUNTY.........93 TO 103.
COASTAL VALLEYS..............90 TO 100.
INLAND VALLEYS...............100 TO 110.
MOUNTAINS BELOW 6000 FEET....90 TO 100.
MOUNTAINS ABOVE 6000 FEET....80 TO 90.
UPPER DESERTS................100 TO 110.
LOWER DESERTS................112 TO 117.
WHILE THE AIRMASS WILL BE QUITE HOT...IT WILL ALSO BE QUITE DRY AND
HUMIDITIES WILL REMAIN LOW THIS WEEK. THEREFORE THE HEAT INDEX
VALUES WILL LIKELY REMAIN JUST BELOW HEAT WARNING CRITERIA FOR OUR
AREA. HOWEVER...VISITORS AND TOURISTS IN THE DESERTS...MOUNTAIN AND
DESERT HIKERS...AND ANYONE WORKING OUTDOORS THIS WEEK SHOULD TAKE
THE NECESSARY PRECAUTIONS TO PREVENT HEAT RELATED ILLNESS.
AVOID STRENUOUS OUTDOOR ACTIVITY IF POSSIBLE. IF YOU HAVE TO BE
OUTSIDE...DRINK PLENTY OF WATER. WEAR LIGHTWEIGHT LOOSE-FITTING
CLOTHING AND WEAR A HAT TO SHIELD YOURSELF FROM THE SUN. NEVER LEAVE
CHILDREN OR PETS IN ENCLOSED VEHICLES...EVEN BRIEFLY.
THE HEAT WILL LINGER INTO THURSDAY BEFORE A LOW PRESSURE TROUGH
BRINGS SIGNIFICANTLY COOLER WEATHER NEXT WEEKEND.
$$
MOEDE
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