A very rare Severe Thunderstorm Watch was issued by NOAA's Storm Prediction Center for a swath of south-central Washington and north-central Oregon, but the watch also extended west into southwestern Washington, including the counties of Cowlitz, Clark and Skamania (as well as the greater Portland Metro/Willamette Valley areas.) The watch was later canceled for SW Washington but expanded in Eastern Washington.
The rest of Western Washington isn't in the watch for severe weather, but is still looking for another round of scattered showers and thunderstorms to develop this evening from the south-southeast
and continue to move through the region through about midnight.
After midnight or so, we'll transition to a period of steady, moderate rains that will linger into Wednesday morning. The atmosphere calms down by Wednesday morning and just plain old scattered rain showers will linger through Wednesday and even a bit into Thursday before we dry out and warm back to the upper 70s in time for the weekend.
But in the meantime, do keep eyes to the skies and be prepared for potential lightning again Tuesday evening and early Tuesday night.
Scott will be providing frequent updates on Twitter as thunderstorms form and move across the region Monday night and Tuesday. You can follow him @ScottSKOMO.