Greater Portland Metro Area

The National Weather Service in Portland has issued an

* Urban and Small Stream Flood Advisory for minor flooding of poor
drainage areas in...
eastern Washington County in northwest Oregon...
eastern Yamhill County in northwest Oregon...
northwestern Clackamas County in northwest Oregon...
northwestern Marion County in northwest Oregon...
western Multnomah County in northwest Oregon...
Clark County in southwest Washington...

* until 330 PM PST.

* At 1234 PM PST National Weather Service Doppler radar indicated
an area of heavy rain and embedded thunderstorms moving slowly
across the Willamette Valley and Clark County lowlands. Heavy
rain is expected to continue over the next hour... possibly
longer. A National Weather Service employee has reported that
this rain is already causing localized minor street flooding in
the city of Portland.

A few locations impacted include Battle Ground... Vancouver
downtown... Washougal... Hillsboro... Oregon City and Portland downtown.

Precautionary/preparedness actions...

Additional rainfall amounts of up to 1 inch are possible in
the warned area. This will exacerbate ponding on roadways and
will likely cause localized minor street flooding... especially
in areas with poor drainage due to storm drains being clogged with
Leaf debris.

Excessive runoff from heavy rainfall will cause ponding of water on
highways... streets and underpasses... in urban areas with poor or
overwhelmed drainage... and will also cause elevated levels on small
creeks and streams.


Lat... Lon 4570 12315 4571 12274 4582 12274 4593 12227
      4530 12229 4509 12277 4510 12315 4530 12315


Weagle

Weather.Gov/Portland

11/07/2009 0105 PM

Hillsboro, Washington County.

Flood, reported by trained spotter.


            Reported hearing on police scanners of varioius Road
            closures in portions of Hillsboro due to standing
            water... including downtown Hillsboro