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Heat wave continues through Thursday

Another heat wave settled over the Rogue Valley Tuesday and the region, and likely will linger through Thursday, pushing temperatures into triple digits in Southern Oregon and Northern California.

Although temperatures will be hotter than normal, they aren't expected to melt any records here, the National Weather Service office in Medford reported.

Tuesday's temperature hit 103 degrees, well below the record of 107 for Aug. 18, the weather service said.

A special weather statement issued Tuesday predicted a top temperature of 105 degrees today in Medford. That's also shy of the day's record of 107 for Aug. 19.

On Thursday, the forecast calls for highs approaching 100 in the Rogue Valley, short of the record for Aug. 20, 103 degrees.

Temperatures in the mountains will be 5 to 10 degrees above normal, climbing into the 90s. The coast will see 60s and 70s on the beaches, but temperatures will shoot into the 80s and 90s immediately inland, the statement said.

Around the region, records could be challenged in Roseburg, Alturas and Montague, the weather service said.

A strong ridge of high pressure swept onshore Tuesday and today to deliver the warm weather, the forecast said. Temperatures should peak on today as the thermal trough passes overhead.

Temperatures will moderate later in the week, but still linger in the 90s, forecasters said.

On Friday and through the weekend, upper level winds could bring in unstable air and increase the likelihood of thunderstorms, especially around Crater Lake, the Rogue-Umpqua Divide and parts of Klamath and Lake counties. However, the chance of storms remains slight.

Reach reporter Anita Burke at 776-4485, or e-mail aburke@mailtribune.com.