UPDATE: Weather Peeps Upgrade Alert to ‘Excessive Heat Warning’


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Two boys cool off at Lake Burien School Park during a 2009 heat wave. Photo by Michael Brunk.

UPDATE 8/16/12: We erroneously reported that the National Weather Service had ‘downgraded’ its ‘Excessive Heat Watch’ to an ‘Excessive Heat Warning,’ when we first posted this story Wednesday (Aug. 15). We were WRONG – it’s actually an upgrade.

We apologize for the error, and warn all our Readers to be very careful during the heat wave over the next few days.

PREVIOUSLY:

The National Weather Service on Wednesday afternoon (Aug. 15) downgraded its ‘Excessive Heat Watch’ to a mild ‘Excessive Heat Warning,’ in effect from Noon Thursday (Aug. 16) through 11 p.m. Friday (Aug. 17).

But that doesn’t mean you should plan on being out in the sun all day.

“Thursday and Friday are likely to be among the hottest days of the year,” the weather peeps said. “The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely.”

To help cool its residents off, the City of Burien will be turning on the sprinklers at Lake Burien School Park starting around 6:45 p.m. Thursday night.

Here’s the latest warning, released at 3:25 p.m. Aug. 15:

…EXCESSIVE HEAT WARNING IN EFFECT FROM NOON THURSDAY TO 11 PM PDT FRIDAY…

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED AN EXCESSIVE HEAT WARNING…WHICH IS IN EFFECT FROM NOON THURSDAY TO 11 PM PDT FRIDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT.

* TIMING…THE INTERIOR OF WESTERN WASHINGTON WILL HAVE HIGH TEMPERATURES WELL INTO THE 90S BOTH THURSDAY AND FRIDAY AFTERNOONS.

* TEMPERATURE…HIGH TEMPERATURES ARE FORECAST TO REACH THE LOW TO MID 90S BOTH DAYS IN THE SEATTLE AREA…WITH MID TO UPPER 90S POSSIBLE IN SOUTHERN AREAS. NIGHTTIME LOW TEMPERATURES WILL BE MAINLY IN THE 60S.

* IMPACTS…THURSDAY AND FRIDAY ARE LIKELY TO BE AMONG THE HOTTEST DAYS OF THE YEAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY.

TAKE EXTRA PRECAUTION IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE…RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK…THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY. CALL 9 1 1.

Here’s the updated 7-day forecast:

  • Tonight Clear, with a low around 61. North northeast wind 8 to 10 mph.
  • Thursday Sunny, with a high near 93. North northeast wind 6 to 9 mph.
    Thursday Night Clear, with a low around 64. North northeast wind 5 to 8 mph.
  • Friday Sunny, with a high near 94. Light and variable wind.
    Friday Night Mostly clear, with a low around 61. West northwest wind around 5 mph becoming north in the evening.
  • Saturday Partly sunny, with a high near 85.
    Saturday Night A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
  • Sunday Partly sunny, with a high near 76.
    Sunday Night Mostly cloudy, with a low around 57.
  • Monday Mostly sunny, with a high near 79.
    Monday Night Mostly cloudy, with a low around 57.
  • Tuesday Mostly sunny, with a high near 79.
    Tuesday Night Mostly cloudy, with a low around 57.
  • Wednesday Mostly sunny, with a high near 79.

NOTE: The National Weather Service also released a “Red Flag Warning” for fire danger – read that here.

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