Temperatures in the north Sound will be slightly cooler, ranging from the upper 80s to the upper 90s. But southwest Washington will have another scorching day as temperatures reach 107 in Vancouver, 104 in Chehalis and 105 in Kelso.
An excessive heat warning is in effect for much of Western Washington through Friday, and a heat advisory is in effect through Thursday in parts of Eastern Washington, including the Yakima Valley and lower Columbia Basin where highs are expected near 100. Yakima will hit 101 degrees and the Tri-Cities will top at 106. Spokane and Pullman will be considerably cooler in the upper 80s.
Marriott expects Thursday to also break a record, hitting 99 degrees and breaking the record of 94 degrees. He expects Friday through Sunday temperatures to hover in the mid 90s.
By the end of the week, there's a good chance we'll either tie or break the record for the most consecutive days of 90-degree heat or higher, said Marriott. The record currently stands at five days.
On Tuesday, temperatures tied or broke records in many parts of the Northwest.
The National Weather Service reported Portland International Airport reached a record 106 degrees, well past the previous airport record of 101 set in 1998, but still short of the 107 all-time mark for the Portland area set in 1981.
Sea-Tac International Airport on Tuesday tied its high record of 97 degrees, previously set in 1998. Temperatures climbed to 91 in downtown Seattle, 105 in Vancouver and 101 in Tumwater.
The hot weather has been affecting southern Oregon longer than most of the rest of the state, with temperatures in Medford pushing up to 108 on Tuesday to break the old record of 105 set in 2003.
Forecasters say temperatures may ease by the weekend in the low 90s and upper 80s, but remain above normal into next week.
"The cooldown will be slow," said Marriott. "We'll probably stay in the mid to maybe upper 80s over the weekend before we start to gradually work our way to the upper 70s by mid to late next week."
Rising temperatures raising concerns
On the second 100-plus degree day in a row in Lewis County, emergency officials are worried about heat-related health problems, especially in the county’s senior residents.
KING 5’s First Alert/School Net weather station at Chehalis Middle School recorded a high temperature of 106 degrees Tuesday.
“If it stays this hot for this long, people are going to dehydrate,” said Ross McDowell, Lewis County Emergency Management Director. McDowell spent the day calling fire stations and churches to find air conditioned locations for senior citizens looking for relief.
“It’s very uncomfortable for us,” said Virginia Lindtott. “I don’t have air conditioning because we get so little hot weather."
Communities to open cooling off centers
Many libraries and communities centers around the South Sound are open and available to people most vulnerable in hot weather.
Community and senior centers across Western Washington are opening their doors all week long to serve as so-called cooling centers, giving people another place to cool themselves as they wait out the heat wave.
"Because Western Washington residents aren't accustomed to such heat and have less access to air conditioning, such heat waves are especially dangerous here. Be certain to check on the elderly, the ill or disabled and certainly children," said Renner. "It goes without saying that no people or animals should be left in cars; even with the windows slightly lowered, temperatures can rise to unsafe levels in minutes."
Hot weather records for the region
Numerous hot weather records could be broken the next few days. Here is a summary of some of the records for the region from the National Weather Service:
| July 28th | July 29th | July 30th |
| Seattle | 97 (1998) | 95 (1971) | 94 (1965) |
| Olympia | 100 (1998) | 96 (2003) | 97 (1965) |
| Bellingham | 88 (1958) | 92 (1960) | 93 (1965) |
| Quillayute | 88 (1974) | 89 (1974) | 88 (1968) |
| Hoquiam | 81 (1965) | 80 (1990) | 93 (1959) |
For record hot streaks, the number of consecutive days with highs at least 90 degrees includes the following:
*5 days...8/7-11/1981 and 7/14-18/1941
*4 days...7/21-24/2006, 7/16-19/1979, 8/9-12/1977, 8/8-11/1971, 7/29-8/1/1965 and 6/30-7/3/1942
*3 days happened 8 times, the most recent 8/14-16/2008
There have already been three days so far this year with highs in the 90s (June 4, July 17 and July 27).
Drownings
Many people will head to Washington's lakes and rivers to cool off, but the water has already claimed a few lives this week and officials are urging people to be careful on the water.
A 48-year-old Seattle woman died Monday night after being rescued from the Skykomish River near Monroe earlier in the day. In Seattle, a body washed ashore Monday evening at Lake Cottage Park on Lake Washington, and divers on Tuesday recovered the body of a man who drowned while swimming Lake Washington near Seattle's Seward Park. His friend says he went underwater and never came up. And three people have drowned in Oregon rivers this week.
Washington officials are so worried about more drownings, they issued this warning: "If you are swimming, please swim at a beach where there is a lifeguard and if you are not in an area where there is a life guard wear a life jacket."
People forget that while the air temperature may be in the 90's, the water temperature may be 20 to 40 degrees cooler, shocking the body. And the murky depths and moving water can make it hard to find you if there is trouble.
Health officials say all children should wear lifejackets in open water, and adults should strongly consider it.
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