The late spring and summer is typically a drier time of the year for the Pacific Northwest, but that has not been the case over the last month. Unusually strong, wet Pacific storms more characteristic of winter have been slamming into the region since May.
Several more storms are in line to bring additional rain to the region Sunday and later next week, threatening to cause more localized flash flooding and sending June rainfall totals rising closer to record levels.
Last month was one of the wettest Mays on record for some locations, and rainfall over the first four days of June has already surpassed the normal amount that typically falls throughout the entire month in several places.
For instance, Portland, Ore., has already picked up 1.61 inches from June 1-4. This amount already exceeds the normal monthly rainfall average, which is 1.59 inches.
Other cities in which rainfall totals the first four days of June have surpassed the monthly average include Eureka, Calif., and Eugene and Pendleton, Ore.
The rainfall has set new daily records over the last few days and even caused localized flash flooding and rock slides in parts of Idaho Friday morning.
Following a break from the rain Saturday, another storm will slam into Northwest Sunday. This system is expected to bring another 0.25 to 0.50 of an inch of rain to many areas across Washington and Oregon, adding to already high monthly rainfall totals.
As has been the case with the last few storms, flooding could result in some areas. This risk will be greatest in areas adjacent to streams and small rivers, as additional rainfall sends these water bodies rising rapidly and overflowing their banks.
Remember never to drive across a roadway covered with water, as doing so may put your life at risk. People living in flood prone areas should take appropriate action to protect their property this weekend.
Related to the Story:
Ahead of an approaching storm system, unseasonable warmth will overspread much of the United Kingdom on Sunday and Monday.
With no exact details on where Malaysia Airlines Flight 370 went missing, Indian Ocean currents may have swept one piece of the complicated puzzle to shores on Reunion Island.
The stream of moisture into the Southwest is drying out some, so this weekend may not be as wet as the previous few days.
Life-threatening heavy rainfall will continue to focus on northeastern India, Bangladesh and western Myanmar into Monday before a drier weather pattern sets in.
Heat and humidity remained in control over the much of the country during the last week of July.
The air felt like an exceptional 163 F in Bandar Mahshahr, Iran, on Friday and similar or worse conditions will follow.
Kanata, Ontario, Canada (1996)
A severe thunderstorm downed electrical wires and trapped people in their cars and a bus for 1-2 hours. Amazingly, nobody was injured.
Scituate, MA (1769)
Hail fell 12" deep and remained on the ground for 30 hours.
Cherrapunji, India (1861)
A total of 366.14" of rain fell during July (world record for 1 month). Cherrapunji also holds world record rainfall for a 12-month period: 1,041.78" from August 1, 1860 to July 31, 1861.