Alert archive / Oregon / River Flood Warnings in 2012

River Flood Warning 56, NWS Portland, OR

November 21, 2012Clackamas County, Marion County, Oregon

NWS Portland, OR issued this river flood warning at Nov 21, 2012, 9:34 AM PST for Clackamas County, Marion County, Oregon. It took effect at Nov 21, 2012, 3:14 PM PST. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Nov 21, 2012, 9:34 AM PST (17:34 UTC)
In effect from
Nov 21, 2012, 3:14 PM PST
Expired
Nov 24, 2012, 6:36 PM PST
In force
3 days
Issued by
NWS Portland, OR
Flood severity
Minor

Counties Clackamas County, OR, Marion County, OR

The radar

The Portland,OR radar (KRTX), 86 km from the middle of the area, began a volume at 17:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Pudding River at Aurora (AURO3). The gauge peaked at 23.62 ft at Nov 22, 2012, 10:00 PM PST.

actionminormoderate202511/2111/2211/2311/2411/2511/26
Action stage
21 ft
Minor stage
22 ft
Moderate stage
26 ft
Major stage
29 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 14202000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Portland, OR wrote its last area forecast discussion before this river flood warning went out at Nov 20, 2:20 PM PST, 19 hours 14 minutes earlier.

Area forecast discussion, Nov 20, 2:20 PM PST, 19 hours 14 minutes before
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The office that day

Everything else NWS Portland, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 20, 8:32 PM PSTFlood WatchPQR13 hr
Nov 20, 10:37 PM PSTSpecial Weather StatementPQRBenton, Lincoln, Tillamook23 min
Nov 20, 10:58 PM PSTSpecial Weather StatementPQRTillamook32 min
Nov 21, 3:00 AM PSTSmall Craft Advisory for WindsPQR24 hr
Nov 21, 3:00 AM PSTSmall Craft Advisory for Hazardous SeasPQR36 hr
Nov 20, 11:23 PM PSTSpecial Weather StatementPQRPacific37 min

Nearby

River Flood Warnings in Oregon, 2012Every river flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.