Updated heat advisory: Tri-Cities to soar above 100 — again

Temperatures returned to the 100s Monday in the Tri-Cities and could be even warmer on Tuesday, according to the National Weather Service.

It has issued a heat advisory from 2 p.m. Monday to 9 p.m. Tuesday for all of the Mid-Columbia.

The temperature reached at least 101 degrees Monday by late afternoon at the Tri-Cities Airport in Pasco.

A high of 103 degrees, or about 10 degrees above normal, is forecast for Tuesday at the airport.

Outdoor workers should take frequent rest breaks in shaded or air-conditioned areas, the Occupational Safety and Health Administration recommends.

Anyone planning strenuous outdoor activities should schedule them for early morning or evening. Drink plenty of water, advises the weather service.

The weekend also was warmer than usual, with highs of 99 recorded both Saturday and Sunday, according to preliminary information from the weather service.

The high Friday of 107 degrees at the airport was the hottest day of the year so far, but did not match the record high for the date in Pasco of 109 degrees.

Temperatures should cool slightly on Wednesday, with a high of 97 degrees forecast.

From Thursday through Sunday highs should be back to just slightly above normal at 93 to 94 degrees each day, according to the National Weather Service.

This story was originally published July 16, 2018 at 10:09 AM.