Seattle area hits record rainfall ahead of ‘widespread thunderstorms’ this week

Rain in the Seattle area. (MyNorthwest Photo)

The second half of the weekend saw record rainfall and humid weather that could soon turn to thunderstorms in the Seattle area by Tuesday.

Check the weather forecast

After a nice rain break on Saturday, clouds rolled up on Saturday evening and around 9 p.m. it began to rain in the region, which the National Weather Service described as “big wet”.

As the weekend drew to a close, the rain continued – by Sunday night Sea-Tac (where the NWS measures rainfall in the Seattle area) had dropped 0.68 inches and the old June 13 mark of 0.5 Inches Exceeded 1946 also set a June 13 record, seeing nearly a full inch of rain, and beating the old record – also set in 1946 – of 0.79 inches.

By 5:00 p.m., 2 climate sites have already set records for the most rainfall on that day.

0.93 “at Olympia today surpasses the old record from June 13 of 0.79” from 1946.

0.68 “Rain at Sea-Tac now exceeds the old 0.50” mark, also from 1946. # WAwx

– NWS Seattle (@NWSSeattle) June 14, 2021

Seattle’s June rainfall is now 1.87 ″. A typical June is 1.45 “, according to the National Weather Service. This June is now considered the 20th rainiest June in 77 years of record time at Sea-Tac Airport. Total precipitation since January 1 is now 20.06”, which is 0.58 ″ above normal.

The wet weather is expected to wear off between Sunday night and Monday morning and come back into effect the next day. On Tuesday there will likely be “widespread thunderstorms” in the region.

“This will surely be the day you can watch here at PNW,” noted the NWS.

Even when it rains, temperatures fluctuated between highs in the 70s and lows in the mid-50s to 60s. Tuesday’s thunderstorms bring cooler weather in the mid to late 1950s.