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Lower ColumbiaCascade foothillsVancouver/ClarkCoast RangeColumbia GorgeTualatin ValleyInner PortlandEast PortlandCascade foothillsWillamette Valley
Portland, Oregon: 9 regions on their zones, each in the colour it wears in the list below.

Nine regions on NWS forecast zones: Inner Portland, East Portland, Vancouver/Clark, Tualatin Valley, Columbia Gorge, Cascade foothills, Willamette Valley, Lower Columbia and Coast Range.

In the editor each region takes a level with one click. When one region needs more detail, split it into its zones and set them one by one; merge it back when they agree.

Regions in this starter map

  • Inner Portland1 zoneInner Portland Metro
  • East Portland2 zonesEast Portland Metro · Outer Southeast Portland Metro
  • Vancouver/Clark3 zonesNorth Clark County Lowlands · Inner Vancouver Metro · East Clark County Lowlands
  • Tualatin Valley2 zonesTualatin Valley · West Hills and Chehalem Mountains
  • Columbia Gorge3 zonesWest Columbia River Gorge of Oregon above 500 ft · West Columbia River Gorge I-84 Corridor · West Columbia River Gorge - SR 14
  • Cascade foothills2 zonesClackamas County Cascade Foothills · South Washington Cascade Foothills
  • Willamette Valley2 zonesWest Central Willamette Valley · East Central Willamette Valley
  • Lower Columbia2 zonesLower Columbia River · Cowlitz County Lowlands
  • Coast Range2 zonesNorth Oregon Coast Range Lowlands · North Oregon Coast Range

Forecast zones from the National Weather Service, coastline from Natural Earth.