White Center Now: The blog about White Center

The National Weather Service has issued a Heat Advisory Alert for the Puget Sound area.

Heat Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
305 AM PDT WED JUN 3 2009

WAZ505-507>509-032300-
/O.NEW.KSEW.HT.Y.0001.090603T2100Z-090605T0100Z/
EAST PUGET SOUND LOWLANDS-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-
305 AM PDT WED JUN 3 2009

...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 PM PDT
THURSDAY..

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 PM
PDT THURSDAY.

OFFSHORE FLOW...WARM AIR ALOFT...LONG DAYS...AND A HIGH EARLY JUNE
SUN ANGLE ARE COMBINING TO PRODUCE VERY WARM CONDITIONS IN THE
SEATTLE-TACOMA-EVERETT AREA. DAYTIME TEMPERATURES ON TUESDAY ROSE
WELL INTO THE 80S TO AROUND 90. EXPECT TEMPERATURES THIS AFTERNOON
AND THURSDAY AFTERNOON TO BE ABOUT THE SAME AS TUESDAY...NEAR
RECORD LEVELS.

THE URBAN HEAT ISLAND EFFECT AND AN OFFSHORE BREEZE MOVING DOWN
OFF THE CASCADES IS NOT ALLOWING TEMPERATURES TO COOL OFF MUCH AT
NIGHT. LOW TEMPERATURES THIS MORNING AND AGAIN THURSDAY MORNING
WILL ONLY BE AROUND 60 DEGREES.

DEWPOINT TEMPERATURES...A MEASURE OF HOW MUCH MOISTURE IS IN THE
AIR...HAVE BEEN IN THE COMFORTABLE LOWER 40S. THEY WILL RISE TO
THE LOWER 50S ON THURSDAY...MAKING IT FEEL A BIT MORE MUGGY AND
UNCOMFORTABLE. LIGHTER BREEZES ON THURSDAY WILL ALSO MAKE IT FEEL
MORE UNCOMFORTABLE.

THE EARLY JUNE WARM SPELL WILL COME TO AN ABRUPT END THURSDAY
EVENING AS A STRONG MARINE PUSH ALLOWS COOL AND MOIST PACIFIC AIR
TO SURGE INLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS..

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND RATHER HIGH
HUMIDITY CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE.
DRINK PLENTY OF FLUIDS. STAY IN AN AIR-CONDITIONED ROOM IF POSSIBLE.
STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

REMEMBER THAT AREA LAKES AND RIVERS ARE STILL COLD. ESCAPING THE
HEAT BY JUMPING INTO A COLD LAKE OR RIVER CAN LEAD TO DEATH BY
HYPOTHERMIA OR DROWNING.

Tags: heat advisory

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