weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Special Weather Statement


SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
630 AM PDT WED JUL 29 2015

CAZ034>041-044>046-051>054-059-087-088-547>550-300200-
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 AND SANTA BARBARA ISLANDS-
SANTA CLARITA VALLEY-LOS ANGELES COUNTY SAN FERNANDO VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
SAN MIGUEL AND SANTA ROSA ISLANDS-SANTA CRUZ AND ANACAPA ISLANDS-
INCLUDING THE CITIES OF...SAN LUIS OBISPO...PISMO BEACH...
MORRO BAY...CAMBRIA...SAN SIMEON...SANTA MARIA...LOMPOC...
VANDENBERG...SOLVANG...SANTA YNEZ...PASO ROBLES...ATASCADERO...
CUYAMA...SANTA BARBARA...MONTECITO...CARPINTERIA...VENTURA...
OXNARD...CAMARILLO...MALIBU...SANTA MONICA...BEVERLY HILLS...
HOLLYWOOD...LONG BEACH...SANTA PAULA...FILLMORE...OJAI...PIRU...
THOUSAND OAKS...SIMI VALLEY...MOORPARK...NEWBURY PARK...
BLACK MOUNTAIN...SAN MARCOS PASS...SAN RAFAEL WILDERNESS AREA...
DICK SMITH WILDERNESS AREA...LOCKWOOD VALLEY...MOUNT PINOS...
ACTON...MOUNT WILSON...SANDBERG...LANCASTER...PALMDALE...AVALON...
SANTA CLARITA...NEWHALL...VALENCIA...WOODLAND HILLS...
NORTHRIDGE...BURBANK...UNIVERSAL CITY...PASADENA...SAN GABRIEL...
POMONA
630 AM PDT WED JUL 29 2015

...VERY WARM AND HUMID CONDITIONS ACROSS SOUTHWEST CALIFORNIA
THROUGH FRIDAY WITH POSSIBLE THUNDERSTORMS...

HIGH PRESSURE ALOFT ALONG WITH WEAK ONSHORE FLOW WILL BRING AN
EXTENDED PERIOD OF VERY WARM TO HOT WEATHER TO SOUTHWEST
CALIFORNIA THROUGH EARLY NEXT WEEK. IT WILL BE A FEW DEGREES
WARMER TODAY THAN IT WAS ON TUESDAY...WITH TEMPERATURES
THURSDAY...DEEP MOISTURE AND VERY WEAK WINDS ALOFT WILL POSE A
HEIGHTENED RISK OF FLASH FLOODING...AND THAT THREAT COULD CONTINUE
THROUGH FRIDAY. A FLASH FLOOD WATCH MAY BE NEEDED FOR MOUNRISING
WELL INTO THE 90S TO AROUND 100 DEGREES IN MANY VALLEYS LOCATIONS...
AT LOWER ELEVATIONS IN THE MOUNTAINS...AND IN THE ANTELOPE
VALLEY. IT WILL BECOME A BIT MORE HUMID AS WELL. THERE IS A SLIGHT
CHANCE OF THUNDERSTORMS THIS AFTERNOON IN THE MOUNTAINS OF LOS
ANGELES AND VENTURA COUNTIES AND THE ANTELOPE VALLEY AS MONSOONAL
MOISTURE BEGINS TO CREEP INTO THE REGION.

THE CHANCE OF SHOWERS AND THUNDERSTORMS WILL GRADUALLY OVERSPREAD
THE ENTIRE REGION VERY LATE TONIGHT AND THURSDAY...THEN CONTINUE
INTO THURSDAY NIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
DOWNPOURS. HOWEVER...MUCH OF THE TIME THURSDAY AND THURSDAY NIGHT
WILL LIKELY BE RAIN-FREE.

DUE TO THE INCREASED CLOUD COVER...HIGH TEMPERATURES ON THURSDAY
MAY BE SLIGHTLY LOWER THAN THOSE REACHED TODAY...BUT IT WILL BE
SIGNIFICANTLY MORE HUMID WHICH MAY MAKE IT FEEL MORE UNCOMFORTABLE.

THE COMBINATION OF HIGH TEMPERATURES AND INCREASED HUMIDITY WILL
CREATE DANGEROUS CONDITIONS FOR THOSE AT RISK OF HEAT-RELATED
ILLNESS. THIS HEAT MAY IMPACT PARTICIPANTS AND SPECTATORS FOR THE
SPECIAL OLYMPIC WORLD GAMES...ESPECIALLY IN VALLEY VENUES.

ON FRIDAY...THE SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS WILL
CONTINUE...MAINLY ACROSS INTERIOR SECTIONS. IT WILL REMAIN RATHER
HUMID AND VERY WARM ACROSS THE REGION. SHOWER AND THUNDERSTORM
ACTIVITY IS EXPECTED TO DECREASE THIS WEEKEND...AND SHOULD BE
CONFINED TO THE AFTERNOON AND EVENING HOURS ACROSS THE MOUNTAINS
OF LOS ANGELES AND VENTURA COUNTIES AND THE ANTELOPE VALLEY.
TEMPERATURES ARE EXPECTED TO BE A FEW DEGREES ABOVE NORMAL
SATURDAY THROUGH TUESDAY.

$$

SPECIAL WEATHER STATEMENT...UPDATED
NATIONAL WEATHER SERVICE SEATTLE WA
446 AM PDT WED JUL 29 2015

WAZ503-504-506-507-509-511-512-555-556-558-559-300000-
WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-EAST PUGET SOUND LOWLANDS-
BELLEVUE AND VICINITY-SEATTLE AND VICINITY-BREMERTON AND VICINITY-
446 AM PDT WED JUL 29 2015

...VERY WARM CONDITIONS WILL AFFECT THE AREA THURSDAY AND
CONTINUE THROUGH INTO EARLY NEXT WEEK...

A STRONG RIDGE OF HIGH PRESSURE IN THE UPPER ATMOSPHERE AND
WARMING ALOFT WILL SUPPORT AN EXTENDED PERIOD OF VERY WARM TO HOT
WEATHER OVER THE AREA THURSDAY THROUGH THE WEEKEND INTO EARLY
NEXT WEEK.

TEMPERATURES WILL RISE INTO THE UPPER TO MID 90S THURSDAY OVER
THE INTERIOR FROM SEATTLE SOUTHWARD INTO THE VALLEYS OF THE
SOUTHWEST INTERIOR. IN THESE AREAS...HIGH TEMPERATURES WILL REACH
THE UPPER 80S TO MID 90S AFTER MORNING LOWS ONLY AROUND 60
DEGREES. AREAS NEAR THE WATER NORTH OF SEATTLE TO THE CANADIAN
BORDER WILL BE WARM...BUT HIGHS WILL ONLY REACH INTO THE 80S.
TEMPERATURES WILL REMAIN VERY WARM THROUGH THE WEEKEND.

HOT WEATHER CAN PLACE EXTRA STRESS ON THE BODY AND POSSIBLY LEAD
TO HEAT EXHAUSTION. IN ADDITION...IT IS EASIER TO BECOME
DEHYDRATED. THE INTERIOR OF AUTOMOBILES CAN BECOME VERY
HOT...CREATING A DANGER IF CHILDREN OR PETS ARE LEFT UNATTENDED.

$$

WWW.WEATHER.GOV/SEATTLE

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SACRAMENTO CA
255 PM PDT TUE JUL 28 2015

CAZ013>019-063-064-066>069-292200-
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
BURNEY BASIN / EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY-
CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY-
CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY-
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
CLEAR LAKE/SOUTHERN LAKE COUNTY-
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-MOTHERLODE-
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF...SHASTA DAM ...BURNEY...REDDING...
RED BLUFF...CHICO...OROVILLE...MARYSVILLE/YUBA CITY ...
SACRAMENTO ...FAIRFIELD/SUISUN ...STOCKTON...MODESTO...
ALDER SPRINGS...LAKEPORT...PARADISE...GRASS VALLEY...JACKSON...
CHESTER...QUINCY...BLUE CANYON
255 PM PDT TUE JUL 28 2015

...VERY HOT AND DRY WEATHER FOLLOWED BY POSSIBLE MOUNTAIN
THUNDERSTORMS...

.IMPACTS...
 * HEAT-RELATED ILLNESSES AND IMPACTS POSSIBLE IF ACTION NOT TAKEN

 * FIRE STARTS POSSIBLE DUE TO THUNDERSTORMS OVER HIGHER
   ELEVATIONS BY END OF THE WEEK

.FORECAST CONFIDENCE...
 * HIGH FOR HEAT

 * MEDIUM FOR HIGHER ELEVATION THUNDERSTORMS

.TIMING AND STRENGTH...
 * DRY CONDITIONS AND LOW HUMIDITY WILL POOR OVERNIGHT RECOVERIES
   WILL CONTINUE INTO THURSDAY.

 * VALLEY HIGHS 100-111 FOR TUESDAY THROUGH THURSDAY WITH MILD
   OVERNIGHT LOWS. TRIPLE DIGIT HEAT WILL CONTINUE ACROSS NORTHERN
   SACRAMENTO VALLEY INTO EARLY NEXT WEEK.

 * SCATTERED THUNDERSTORMS POSSIBLE ACROSS MOUNTAINS AND FOOTHILLS
   FRIDAY INTO EARLY NEXT WEEK.

.WEATHER SUMMARY...
TEMPERATURES IN THE TRIPLE DIGITS IN THE VALLEY WILL CONTINUE THROUGH
THURSDAY. HIGHS IN THE 100S LIKELY TO CONTINUE FOR NORTHERN
SACRAMENTO VALLEY INTO EARLY NEXT WEEK. MILD OVERNIGHT LOWS ARE
EXPECTED AS WELL. HEAT-RELATED ILLNESSES AND IMPACTS ARE POSSIBLE
IF ACTION IS NOT TAKEN. IN ADDITION...MONSOON MOISTURE WILL MAKE A
NORTHWARD SURGE FRIDAY INTO EARLY NEXT WEEK. SCATTERED MOUNTAIN
AND FOOTHILLS THUNDERSTORMS WILL BE POSSIBLE WHICH MAY LEAD TO
ADDITIONAL FIRE STARTS.

$$

CEO

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE