Hey @iFred What do I win?

Have you tried this?

July 17-18, 1941 is kind of the benchmark for that sort of thing. Massive electrical storm on the tail end of one of our badder heatwaves. PDX had a 100/74 spread on 7/17 with 0.03" of precip and the Seattle area had a similar story as the storms moved north. SEA wasn't around yet but downtown saw 92 and UW was 96 with measurable precip on the 18th. Kent was 95/64 with 0.18" of precip.

Forest Grove looks like the big winner today with 0.51" from the storm earlier.

God I love this kind of weather. Monsoon thunderstorm days in Southern California that started off super hot and then had high clouds and thunderstorms build in over the late afternoon were some of my favorite weather weenie days ever. This feels just like that. I am pretty sure SEA has never hit 95F and recorded measurable precipitation on the same day. (Can any of our stats autismos confirm?) Hoping we can pull that one off just for the novelty. Nonetheless, days like today have to be exceedingly rare.