MYNORTHWEST NEWS

What exactly is a Seattle ‘heat wave?’

Jun 25, 2015, 11:23 AM | Updated: 5:45 pm

Stay cool this weekend. Temperatures are expected to reach the low 90s on Saturday. (AP file)...

Stay cool this weekend. Temperatures are expected to reach the low 90s on Saturday. (AP file)

(AP file)

Residents across the Puget Sound are expected to melt before Sunday &#8212 or at least that’s what it might feel like with temperatures hovering in the low 80s to mid 90s.

The National Weather Service has issued an excessive heat watch across Western Washington from Friday at noon to Sunday at 5 a.m.

Related: Is it creepy for an adult to play in a Seattle fountain?

Meteorologist Danny Mercer says the heat wave is coming earlier than usual in the summer and adds to an already hot June.

Is it really a heat wave or are we Pacific Northwesterners sensitive to the giant, yellow orb in the sky?

“A heat wave is all relative to specific areas around the nation,” explained NWS meteorologist Ted Buehner. “For our neck of the woods, when we get into the 90s – heat wave would be appropriate for many people.”

Officially, the National Weather Service defines “heat wave” as “a period of abnormally and uncomfortably hot and unusually humid weather. Typically, a heat wave lasts two or more days.”

Buehner said Seattle averages three days per year in the 90s, not necessarily consecutively. Last year, we had four days reach 90 or hotter.

“It is not rare,” he said, “it just does not happen all that often.

Buehner recalled a “good” heat wave in Aug. 1981. It was during Seafair and temperatures hovered in the 90s for five straight days with two days hitting the then all-time record high of 99.

The forecast says temperatures could hit triple digits east of the Cascade Mountains, as well as parts of Idaho this weekend.

MyNorthwest News

DOJ - Snohomish...

Jason Sutich

Convicted child rapist pleads guilty to enticing 2 more minors for sexual abuse in Snohomish County

A registered sex offender living in Snohomish County pleaded guilty Monday to two counts of enticement of a minor for his sexual abuse of two 14-year-old teens.

4 hours ago

Eagle Falls...

Jake Chapman, KIRO 7 News

Eagle Falls claims 13th victim, man found unresponsive in water

A man died over the weekend after being found unresponsive at Eagle Falls in Index.

5 hours ago

shooting seattle center bite of seattle after action report distracted...

Frank Lenzi

Bite of Seattle shooting report reveals elected officials distracted police from getting information out

A finding in SPD's after-action report on the July 26 Bite of Seattle shooting confirms officials distracted officers from getting information out.

5 hours ago

diesel prices...

Aaron Granillo

‘We’re at double’: Record diesel prices hitting Washington’s fall harvest

Washington farmers are paying more to bring in their fall harvests as high diesel prices drive up the cost of running equipment and shipping crops.

5 hours ago

WA amazon layoff...

Jason Sutich

Amazon drops WA delivery partner, 120 employees laid off with one day’s notice

A package delivery service in Washington laid off 120 employees on Monday and closed its business after its only client, Amazon, dropped the service.

6 hours ago

garbage truck fire NB I-5...

Jason Sutich

NB I-5 off-ramp to West Seattle back open after garbage truck fire

The exit ramp to West Seattle from northbound I-5 is fully blocked on Monday while a garbage truck burns in the middle of the roadway.

6 hours ago

What exactly is a Seattle ‘heat wave?’