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24HR SFC FORECAST
24-HR FORECAST MAP OF FRONTS, PRESSURE AND WEATHER
Image showing 24 hour forecast of mean sea level pressure and fronts
PORTLAND AREA WEATHER SYNOPSIS

SYNOPSIS...THE NEXT FRONT OFFSHORE APPROACHING THE COAST THIS MORNING THEN WEAKENS AS IT MOVES ASHORE IN THE AFTERNOON. THE LEFT OVER FRONTAL BOUNDARY WILL LIKELY STALL OVER THE AREA TONIGHT WITH CLOUDS AND SOME SPOTTY LIGHT PRECIPITATION. THEN THE NEXT MUCH STRONGER LOW PRESSURE SYSTEM WILL PUSH A STRONG COLD FRONT THROUGH THE AREA DURING THE DAY FRIDAY AND EARLY FRIDAY NIGHT FOR LOCALLY BREEZY CONDITIONS AND A GOOD SHOT OF RAIN...THEN FOLLOWED BY THE ASSOCIATED COLD UPPER LOW LATER FRIDAY NIGHT AND SATURDAY FOR PLENTY OF SHOWERS AND QUITE LOW SNOW LEVELS DOWN INTO AT LEAST THE HIGHER HILLS AND FOOTHILLS.

Overnight Outlook
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