Alert archive / Oregon / River Flood Warnings in 2012
River Flood Warning 6, NWS Portland, OR
NWS Portland, OR issued this river flood warning at Jan 18, 2012, 8:40 PM PST for Benton County, Lane County, Oregon. It took effect at Jan 19, 2012, 8:04 AM PST. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Jan 18, 2012, 8:40 PM PST (04:40 UTC)
- In effect from
- Jan 19, 2012, 8:04 AM PST
- Expired
- Jan 20, 2012, 3:46 AM PST
- In force
- 20 hr
- Issued by
- NWS Portland, OR
- Flood severity
- Minor
Counties Benton County, OR, Lane County, OR
The radar
The Portland,OR radar (KRTX), 167 km from the middle of the area, began a volume at 04:43 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 Long Tom River at Monroe (MNRO3). The gauge peaked at 8.93 ft at Jan 19, 2012, 6:00 PM PST.
- Action stage
- 8.5 ft
- Minor stage
- 9 ft
- Moderate stage
- 11 ft
- Major stage
- 12 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 14170000, 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 Jan 18, 8:03 PM PST, 37 minutes earlier.
Area forecast discussion, Jan 18, 8:03 PM PST, 37 minutes before
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</html>Hazardous weather outlook, Jan 18, 6:20 AM PST, 14 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PORTLAND OR 620 AM PST WED JAN 18 2012 ORZ001>014-WAZ019>023-039-040-191730- NORTH OREGON COAST-CENTRAL OREGON COAST- COAST RANGE OF NORTHWEST OREGON- CENTRAL COAST RANGE OF WESTERN OREGON-LOWER COLUMBIA- GREATER PORTLAND METRO AREA-CENTRAL WILLAMETTE VALLEY- SOUTH WILLAMETTE VALLEY-WESTERN COLUMBIA RIVER GORGE- NORTHERN OREGON CASCADE FOOTHILLS-NORTHERN OREGON CASCADES- CASCADE FOOTHILLS IN LANE COUNTY-CASCADES IN LANE COUNTY- UPPER HOOD RIVER VALLEY-SOUTH WASHINGTON CASCADES-WILLAPA HILLS- SOUTH WASHINGTON COAST-I-5 CORRIDOR IN COWLITZ COUNTY- GREATER VANCOUVER AREA-SOUTH WASHINGTON CASCADE FOOTHILLS- 620 AM PST WED JAN 18 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON. .DAY ONE...TODAY AND TONIGHT A LOW PRESSURE SYSTEM APPROACHING THE PACIFIC NORTHWEST IS BRINGING SNOWFALL...HEAVY RAIN...AND STRONG WINDS TO THE REGION TODAY. THE BEST CHANCES FOR ADDITIONAL SNOWFALL ACCUMULATIONS WILL BE IN THE HIGHER ELEVATIONS OF THE NORTH OREGON AND SOUTH WASHINGTON CASCADES...THE NORTH OREGON COAST RANGE...THE WILLAPA HILLS...THE COLUMBIA RIVER GORGE...AND THE UPPER HOOD RIVER VALLEY. HIGH WINDS WILL IMPACT THE NORTH AND CENTRAL OREGON COAST AND COAST RANGE...WITH THE LARGEST IMPACTS EXPECTED ALONG THE CENTRAL OREGON COAST. GUSTY WINDS MAY ALSO DEVELOP IN THE WILLAMETTE VALLEY...PARTICULARLY IN SOUTH AND CENTRAL VALLEY LOCATIONS. HEAVY RAINFALL IS EXPECTED TO CONTINUE THROUGH THIS AFTERNOON AND TONIGHT. THIS WILL LEAD TO SHARP RISES IN AREA RIVERS AND STREAMS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY SEVERAL OTHER FRONTAL SYSTEMS ARE EXPECTED TO IMPACT THE PACIFIC NORTHWEST THROUGH THE END OF THE WEEK INTO THE WEEKEND. THE MAIN IMPACT IS EXPECTED TO BE HIGH RAINFALL TOTALS LEADING TO POTENTIAL FLOODING ISSUES. MORE STRONG WINDS WILL ALSO BE POSSIBLE AT THE COAST WITH FRONTAL PASSAGES ON THURSDAY AND FRIDAY. ANOTHER ISSUE THAT BEARS WATCHING IS THE POTENTIAL FOR MORE WINTRY PRECIPITATION IN THE GORGE ON THURSDAY. A LOW PRESSURE SYSTEM MAY APPROACH THE COAST ON THURSDAY...POTENTIALLY PULLING MORE COLD AIR INTO THE GORGE. WITH ABUNDANT MOISTURE IN PLACE AND PLENTY OF PRECIPITATION EXPECTED...THIS COULD POTENTIALLY LEAD TO SIGNIFICANT ICE ACCUMULATIONS. THERE IS STILL SIGNIFICANT UNCERTAINTY IN THE LIKELIHOOD OF THIS SITUATION OCCURRING. STAY TUNED IN TO THE LATEST WEATHER DEVELOPMENTS BY VISITING OUR WEBSITE AT WWW.WEATHER.GOV/PORTLAND .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SNOW OR RAIN TOTALS ACCORDING TO STANDARD OPERATING PROCEDURES. PZZ250-255-270-275-191730- COASTAL WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD OR OUT 10 NM-COASTAL WATERS FROM CASCADE HEAD TO FLORENCE OR OUT 10 NM- WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD OR FROM 10 TO 60 NM-WATERS FROM CASCADE HEAD TO FLORENCE OR FROM 10 TO 60 NM- 620 AM PST WED JAN 18 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT A FRONTAL SYSTEM IS BRINGING STRONG WINDS AND HIGH SEAS TO THE WATERS TODAY. STORM FORCE WINDS ARE EXPECTED THROUGH THE DAY...WITH HURRICANE FORCE WINDS POSSIBLE FOR THE OUTER WATERS. SEAS ARE EXPECTED TO RUN IN THE 20 TO 30 FT RANGE...PERHAPS AS HIGH AS 35 FT IN THE WINDIEST AREAS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A SERIES OF FRONTAL PASSAGES WILL BRING PERIODS OF GALE FORCE WINDS AND SEAS NEAR OR ABOVE 20 FT THROUGH THE END OF THE WEEK INTO THE WEEKEND. A PARTICULARLY STRONG FRONT ON FRIDAY MAY BRING ANOTHER ROUND OF STORM FORCE WINDS. .SPOTTER INFORMATION STATEMENT...
In the hours before
Local storm report, Jan 18, 5:04 PM PST, 3 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
504 PM PST WED JAN 18 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0502 PM HEAVY RAIN 2 W SAGINAW 43.83N 123.09W
01/18/2012 M2.02 INCH LANE OR TRAINED SPOTTER
ACCUMULATION OVER THE LAST 24 HOURS. 2.5 MI W OF COTTAGE
GROVE, ELEVATION 1200 FT.
&&
KDONOFRILocal storm report, Jan 18, 6:10 PM PST, 2 hours 30 minutes before
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</html>Local storm report, Jan 18, 7:46 PM PST, 54 minutes before
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</html>The office that day
Everything else NWS Portland, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 18, 4:02 PM PST | River Flood Warning | PQR | Lincoln | 43 hr |
| Jan 18, 4:02 PM PST | River Flood Warning | PQR | Benton, Lincoln | 36 hr |
| Jan 18, 4:58 PM PST | Small Craft Advisory for Hazardous Seas | PQR | 38 hr | |
| Jan 18, 5:28 PM PST | Areal Flood Advisory | PQR | Benton, Lane, Lincoln, Linn, Marion, Polk | 8 hr |
| Jan 19, 1:30 AM PST | Areal Flood Advisory | PQR | Benton, Clackamas, Lane, Lincoln, Linn, Marion and 4 more | 25 hr |
| Jan 19, 2:54 AM PST | Gale Watch | PQR | 12 hr | |
| Jan 19, 2:54 AM PST | Small Craft Advisory for Winds | PQR | 16 hr | |
| Jan 19, 3:23 AM PST | Winter Weather Advisory | PQR | 24 hr | |
| Jan 19, 4:13 AM PST | River Flood Warning | PQR | Lane | 29 hr |
| Jan 19, 4:13 AM PST | River Flood Warning | PQR | Linn, Marion | 36 hr |
| Jan 19, 4:23 AM PST | Gale Warning | PQR | 8 hr | |
| Jan 19, 4:23 AM PST | Small Craft Advisory for Winds | PQR | 15 hr | |
| Jan 19, 9:04 AM PST | Areal Flood Advisory | PQR | Clatsop, Columbia, Multnomah, Tillamook, Washington | 18 hr |
| Jan 19, 9:35 AM PST | River Flood Warning | PQR | Clackamas, Marion | 8 days |
| Jan 19, 9:35 AM PST | River Flood Warning | PQR | Clackamas | 24 hr |
| Jan 19, 9:35 AM PST | River Flood Warning | PQR | Clackamas | 24 hr |
| Jan 19, 9:35 AM PST | River Flood Warning | PQR | Clackamas, Multnomah | 18 hr |
| Jan 19, 9:35 AM PST | River Flood Warning | PQR | Yamhill | 67 hr |
| Jan 19, 10:16 AM PST | River Flood Warning | PQR | Clackamas | 18 hr |
| Jan 19, 12:07 PM PST | River Flood Warning | PQR | Benton, Lane, Linn | 14 hr |
| Jan 19, 12:07 PM PST | River Flood Warning | PQR | Benton, Linn | 22 hr |
| Jan 19, 12:07 PM PST | River Flood Warning | PQR | Benton, Linn | 28 hr |
| Jan 19, 12:07 PM PST | River Flood Warning | PQR | Marion, Polk | 55 hr |
| Jan 19, 12:07 PM PST | River Flood Warning | PQR | Clackamas | 4 days |
| Jan 19, 2:23 PM PST | High Wind Watch | PQR | 13 hr | |
| Jan 19, 2:56 PM PST | Gale Warning | PQR | 23 hr |
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.