A Weather Trick Or Treat Tomorrow?

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Justin’s Tuesday Night Forecast Discussion: 

Muggy and mild for most of the day Tuesday and we’ll see more of the same overnight tonight into Halloween day as the “river of rain” so to speak is still pointed at the Northwest. Most of the showers tonight will be confined to the coast and northern valley into Portland with the mild airmass still keeping lows tonight well above normal in the mid to upper 50s.

Because of the tropical nature of the airmass coming, it’ll have a lot of “juice” so to speak.  Flood Watches have been posted for most of the Northern Coast Range. Small rivers and tributaries might need monitoring for flood potential as 1-3 inches of rain may fall from late tonight through Thursday.

For all the trick-or-treaters tomorrow, it’s looking like a bit of a soaker by late day. A cold front will park itself offshore tonight, slowly working inland along the coast Wednesday morning and into the valleys by mid-afternoon. I expect to see some heavier showers at times, especially in the evening so adapt those Halloween costumes to include rain jackets and boots. Highs should stay mild though, still in the low 60s.

The low finally moves across the region by Thursday which should shut the rain down for at least a day or so as we go into the beginning of the weekend. Highs will drop back into the upper to mid 50s  but Friday and Saturday should provide some afternoon sunshine.

Have a great Wednesday!

Chief Meteorologist Justin Stapleton

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