The Brookings Effect Today: 101 Degrees!

July 28, 2015

A coastal city was the hottest place in Oregon today.


Yep, the temperature hit 101 degrees at Brookings way down on the south coast.

How does that happen???

It’s called the Brookings Effect, or sometimes the Chetco Effect.  With the right wind direction, air rushes down the Siskiyou Mountains, compressing and warming the airmass.  As a result, a localized area around Brookings can see temperatures soar ANY month of the year. Cliff Mass did a nice write-up about it a couple of year ago.

You know you’ve made it “big time” if you have a Wikipedia entry right? Sure enough, you can find an entry for the Brookings Effect here.

As soon as the wind direction changes the temperature drops rapidly.  It’s quite possible to have a high in the 90s one day and then be foggy and 58 the next as the air comes off the chilly Pacific Ocean.  You can see some of that up/down on a chart of the past 13 days:


The most extreme heat wave in the Brookings area occurred in July 2008.  That was a crazy few days, I can’t imagine what it was like for folks who most likely didn’t have air conditioning!  The 108 was the all-time record high for that location.  Note the low of 85 degrees the following night as the warm north wind continued to blow.


Speaking of a warm night, I see it is still 89 degrees in Brookings at 11pm with a northeast wind gusting to 16 mph.

Here in our area the heat begins tomorrow (Wednesday) and continues through at least Monday.  Models seem to be pointing towards significant cooling beginning Tuesday.

Stay cool!

Chief Meteorologist Mark Nelsen