Enjoy clear skies now, changes are coming | Weather

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Enjoy clear skies now, changes are coming
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Enjoy clear skies now, changes are coming
Clearing skies letting the heat out overnight will make for a pretty fall day on Sunday.   With partly to mostly sunny conditions, highs will warm into the low 40s for most of the region.   You should definitely take advantage of the nice day while it's in place - certainly enjoy it and get in an autumn walk or toss the football around a bit.   But if you have a yard full of big trees that have been dutifully shedding this month, you should also think about getting in a good round of aggressive raking.   It may be the last chance you have to do so for awhile, and if you can un-clog the storm drains around your house, you won't be sorry, it may prevent urban flooding in your neighborhood during the week to come. That's because the weather script here is going to take a 180-degree turn as we slide into Monday.   A gusty, moisture-laden storm is going to plow into the Northwest by Monday morning, and it will be a soggy and blustery start to the work week.   As the rain returns, highs will climb back into the upper 40s around the Sound.  The passes will still see snow initially, but the snow level will continue to rise throughout the day.  South winds will gust between 20 and 40 mph in the interior, and we may see gusts upwards of 50 mph near the beaches. A second disturbance barrels toward us on Tuesday, and that storm appears to be the one with the most 'juice'.  Rain will be moderate to heavy at times, especially over the Olympics and North Cascades.  Highs will climb to at least 50 degrees along the I-5 corridor, so the passes will also be dealing with rain instead of snow.   With the heavy rain falling on top of the recent snowfall in the mountains, we'll see the dreaded one-two punch of new rain combining with snow-melt in our waterways...flooding will be a concern for many of our rivers--especially those feeding out of the Olympics and North Cascades--by Tuesday.  Not only will it be wet, but also windy.   Gusts between 30 and 45 mph may blow throughout the Sound, with winds upwards of 50 to 60 mph at the coast. Wednesday will still be wet at times, and highs will climb WELL into the 50s...quite mild for this time of year.  The threat for river flooding will continue through mid-week. By Thursday, things quiet down some, and temperatures drop back a bit.  We'll see high temperatures fall back to about 50, which is more typical of the season.  That should help to bring the snow level down some, and therefore will tap the brakes on area flooding.  However, it still looks wet at times from Thursday afternoon right into the weekend, so rivers will likely continue to run high. Shannon Meteorologist Shannon O'DonnellThe KOMO4 Forecast Team
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