Portland, OR: Nine Day Forecast

City or ZIP code

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HRRR/GFS guidance for days 1-2 with ECMWF guidance for days 3-9 for Portland, OR.

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NWS Watches and Warnings

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Forecast cards use computer model guidance from Open-Meteo. For supported U.S. locations, days 1-2 use HRRR/GFS guidance and days 3-9 use ECMWF guidance only. Locations outside the supported U.S. range use GFS guidance. The NWS feed is used for current conditions and active watches, warnings, advisories, and statements.

Potential record high/low coloring compares the forecast temperature against Open-Meteo historical reanalysis daily extremes from 1991 through last year for the same point location and calendar date.

Severe Chance is a model-derived proxy from thunderstorm probability, CAPE, wind gusts, and rain amount; it is not an official severe weather outlook.

City and ZIP search uses geocoding only to find latitude and longitude; forecast cards still use the model guidance described above.

Icons use the local 98-06 TWC icon pack you provided, with motion added only for rain, snow, thunderstorm, and wind states.

Sources: model JSON, NWS alert JSON, Open-Meteo GFS docs, Open-Meteo ECMWF docs, Open-Meteo geocoding docs, ZIP geocoding, Open-Meteo historical reanalysis docs, NWS alerts docs, local 98-06 TWC icon pack source.

Alert

Hourly Forecast