Weather Alerts for PDX MetroIssued by the National Weather Service |
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| PDX METRO | ||
Areas Affected: Clackamas, OR - Marion, OR |
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| Effective: Thu, 12/18 10:30am | Updated: Thu, 12/18 4:01pm | Urgency: Immediate |
| Expires: Thu, 12/18 10:30pm | Severity: Severe | Certainty: Observed |
Details:
...The Flood Warning continues for the following rivers in Washington...Oregon... Cowlitz River at Kelso affecting Cowlitz County. Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River at Estacada affecting Clackamas County. Clackamas River near Oregon City affecting Clackamas County. Sandy River near Bull Run affecting Multnomah and Clackamas Counties. Hood River Near Hood River affecting Hood River County. Siuslaw River near Mapleton affecting Lane County. Molalla River near Canby affecting Clackamas County. Marys River near Philomath affecting Benton County. Pudding River at Aurora affecting Marion and Clackamas Counties. Luckiamute River near Suver affecting Polk and Benton Counties. S Yamhill River at McMinnville affecting Yamhill County. ...The Flood Warning is extended for the following rivers in Oregon... Siletz River at Siletz affecting Lincoln County. Trask River near Tillamook affecting Tillamook County. * WHAT...Minor flooding is forecast. * WHERE...Pudding River at Aurora. * WHEN...From Friday morning to late Tuesday morning. * IMPACTS...Above 27.0 feet, expect widespread flooding of numerous secondary roads and agricultural land. * ADDITIONAL DETAILS... - At 10:00 AM PST Thursday the stage was 15.9 feet. - Bankfull stage is 21.0 feet. - Forecast...The river is expected to rise above flood stage Friday morning and crest around 26.0 feet late Saturday morning. It will then fall below flood stage early Tuesday morning. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood Information: Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1030 PM PST. |
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| PDX METRO | ||
Areas Affected: Clackamas, OR - Multnomah, OR |
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| Effective: Thu, 12/18 3:47pm | Updated: Thu, 12/18 4:01pm | Urgency: Expected |
| Expires: Fri, 12/19 4:00am | Severity: Severe | Certainty: Likely |
Details:
...Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Oregon... Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River near Oregon City affecting Clackamas County. * WHAT...Major flooding is forecast. * WHERE...Johnson Creek at Sycamore. * WHEN...Until early tomorrow afternoon. * IMPACTS...Above 14.0 feet, expect widespread flooding of residential and commercial areas along Johnson Creek. * ADDITIONAL DETAILS... - At 3:30 PM PST Thursday the stage was 8.9 feet. - Bankfull stage is 10.0 feet. - Forecast...The river will rise above flood stage late this afternoon or early this evening and crest around 14.3 feet late this evening. It will then fall below flood stage Friday morning. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood Information: Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 400 AM PST. |
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| PDX METRO | ||
Areas Affected: Clackamas, OR - Multnomah, OR |
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| Effective: Thu, 12/18 10:30am | Updated: Thu, 12/18 4:01pm | Urgency: Immediate |
| Expires: Thu, 12/18 10:30pm | Severity: Severe | Certainty: Observed |
Details:
...The Flood Warning continues for the following rivers in Washington...Oregon... Cowlitz River at Kelso affecting Cowlitz County. Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River at Estacada affecting Clackamas County. Clackamas River near Oregon City affecting Clackamas County. Sandy River near Bull Run affecting Multnomah and Clackamas Counties. Hood River Near Hood River affecting Hood River County. Siuslaw River near Mapleton affecting Lane County. Molalla River near Canby affecting Clackamas County. Marys River near Philomath affecting Benton County. Pudding River at Aurora affecting Marion and Clackamas Counties. Luckiamute River near Suver affecting Polk and Benton Counties. S Yamhill River at McMinnville affecting Yamhill County. ...The Flood Warning is extended for the following rivers in Oregon... Siletz River at Siletz affecting Lincoln County. Trask River near Tillamook affecting Tillamook County. * WHAT...Minor flooding is forecast. * WHERE...Sandy River near Bull Run. * WHEN...From this evening to early Friday afternoon. * IMPACTS...Above 19.3 feet, expect areas of significant bank erosion and some minor flooding of low areas along the Sandy from Ten Eyck Road Bridge, also called Revenue Bridge downstream to Troutdale. * ADDITIONAL DETAILS... - At 9:45 AM PST Thursday the stage was 12.3 feet. - Bankfull stage is 18.0 feet. - Forecast...The river will rise above flood stage late this evening and crest around 20.3 feet late tonight. It will then fall below flood stage Friday morning. - Flood stage is 19.3 feet. - http://www.weather.gov/safety/flood Information: Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1030 PM PST. |
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| PDX METRO | ||
Areas Affected: Clackamas, OR |
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| Effective: Thu, 12/18 3:47pm | Updated: Thu, 12/18 4:01pm | Urgency: Expected |
| Expires: Fri, 12/19 4:00am | Severity: Severe | Certainty: Likely |
Details:
...Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Oregon... Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River near Oregon City affecting Clackamas County. * WHAT...Major flooding is forecast. * WHERE...Clackamas River near Oregon City. * WHEN...From this evening to early Saturday morning. * IMPACTS...Above 46.0 feet, expect major flooding of some residences and buildings along the lower Clackamas River, including the mobile home park just downstream of Carver Bridge. * ADDITIONAL DETAILS... - At 3:00 PM PST Thursday the stage was 29.3 feet. - Bankfull stage is 38.0 feet. - Forecast...The river will rise above flood stage late this evening and crest around 46.0 feet late tonight. It will then fall below flood stage late Friday. - Flood stage is 39.0 feet. - http://www.weather.gov/safety/flood Information: Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 400 AM PST. |
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| PDX METRO | ||
Areas Affected: Clackamas, OR |
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| Effective: Thu, 12/18 10:30am | Updated: Thu, 12/18 4:01pm | Urgency: Immediate |
| Expires: Thu, 12/18 10:30pm | Severity: Severe | Certainty: Observed |
Details:
...The Flood Warning continues for the following rivers in Washington...Oregon... Cowlitz River at Kelso affecting Cowlitz County. Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River at Estacada affecting Clackamas County. Clackamas River near Oregon City affecting Clackamas County. Sandy River near Bull Run affecting Multnomah and Clackamas Counties. Hood River Near Hood River affecting Hood River County. Siuslaw River near Mapleton affecting Lane County. Molalla River near Canby affecting Clackamas County. Marys River near Philomath affecting Benton County. Pudding River at Aurora affecting Marion and Clackamas Counties. Luckiamute River near Suver affecting Polk and Benton Counties. S Yamhill River at McMinnville affecting Yamhill County. ...The Flood Warning is extended for the following rivers in Oregon... Siletz River at Siletz affecting Lincoln County. Trask River near Tillamook affecting Tillamook County. * WHAT...Major flooding is forecast. * WHERE...Clackamas River at Estacada. * WHEN...From this evening to Saturday morning. * IMPACTS...Above 25.0 feet, expect major flood damage at parks along the river. Also expect flooding in Carver, along with numerous homes along the Clackamas River from Estacada downstream to the confluence with the Willamette. * ADDITIONAL DETAILS... - At 9:45 AM PST Thursday the stage was 14.6 feet. - Bankfull stage is 18.0 feet. - Forecast...The river will rise above flood stage this evening and crest around 25.3 feet late tonight. It will then fall below flood stage Saturday morning. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood Information: Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1030 PM PST. |
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| PDX METRO | ||
Areas Affected: Clackamas, OR |
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| Effective: Thu, 12/18 10:30am | Updated: Thu, 12/18 4:01pm | Urgency: Immediate |
| Expires: Thu, 12/18 10:30pm | Severity: Severe | Certainty: Observed |
Details:
...The Flood Warning continues for the following rivers in Washington...Oregon... Cowlitz River at Kelso affecting Cowlitz County. Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River at Estacada affecting Clackamas County. Clackamas River near Oregon City affecting Clackamas County. Sandy River near Bull Run affecting Multnomah and Clackamas Counties. Hood River Near Hood River affecting Hood River County. Siuslaw River near Mapleton affecting Lane County. Molalla River near Canby affecting Clackamas County. Marys River near Philomath affecting Benton County. Pudding River at Aurora affecting Marion and Clackamas Counties. Luckiamute River near Suver affecting Polk and Benton Counties. S Yamhill River at McMinnville affecting Yamhill County. ...The Flood Warning is extended for the following rivers in Oregon... Siletz River at Siletz affecting Lincoln County. Trask River near Tillamook affecting Tillamook County. * WHAT...Minor flooding is forecast. * WHERE...Molalla River near Canby. * WHEN...From late tonight to late Friday morning. * IMPACTS...Above 23.0 feet, expect flooding of low-lying agricultural land from Canby downstream to the confluence with the Pudding River. Some secondary roads and a few structures may begin to flood. * ADDITIONAL DETAILS... - At 9:00 AM PST Thursday the stage was 14.4 feet. - Bankfull stage is 20.0 feet. - Forecast...The river will rise above flood stage tonight and crest around 23.1 feet late tonight. It will then fall below flood stage early Friday. - Flood stage is 23.0 feet. - http://www.weather.gov/safety/flood Information: Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1030 PM PST. |
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| PDX METRO | ||
Areas Affected: North Oregon Cascades - Cascades of Marion and Linn Counties - South Washington Cascades |
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| Effective: Thu, 12/18 1:58pm | Updated: Thu, 12/18 4:01pm | Urgency: Expected |
| Expires: Fri, 12/19 7:00am | Severity: Moderate | Certainty: Likely |
Details:
* WHAT...Snow expected. Total snow accumulations of 6-12 inches above 3000 feet, except up to 14-16 inches above 2500 feet in the south Washington Cascades. Winds gusting as high as 40 mph. * WHERE...In Oregon, North Oregon Cascades and Cascades of Marion and Linn Counties. In Washington, South Washington Cascades. * WHEN...From 4 AM Friday to 10 AM PST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Information: Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map |
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| PDX METRO | ||
Areas Affected: Clatsop, OR - Tillamook, OR - Washington, OR |
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| Effective: Thu, 12/18 1:36pm | Updated: Thu, 12/18 4:01pm | Urgency: Expected |
| Expires: Thu, 12/18 7:30pm | Severity: Minor | Certainty: Likely |
Details:
* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...A portion of northwest Oregon, including the following counties, Clatsop, Tillamook and Washington. * WHEN...Until 730 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Some low-water crossings may become impassable. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 136 PM PST, Doppler radar and automated rain gauges indicated heavy rain. This will cause small stream flooding. Rapid river rises will cause minor flooding in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 2 to 4 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Cannon Beach, Garibaldi, Manzanita, Tillamook, Rockaway Beach, Lees Camp, Trask, Elsie, Cape Meares, Netarts, Oceanside, Bay City, Wheeler, Nehalem, Foss, Salmonberry, Hamlet, Mohler, Wilson River Summit and Sunset Summit. - http://www.weather.gov/safety/flood Information: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Stay away or be swept away. River banks and culverts can become unstable and unsafe. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. |
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| PDX METRO | ||
Areas Affected: Clackamas, OR - Columbia, OR - Multnomah, OR - Washington, OR - Yamhill, OR - Clark, WA - Skamania, WA |
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| Effective: Thu, 12/18 3:37pm | Updated: Thu, 12/18 4:01pm | Urgency: Expected |
| Expires: Thu, 12/18 7:30pm | Severity: Minor | Certainty: Likely |
Details:
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Portions of northwest Oregon, including the following counties, Clackamas, Columbia, Multnomah, Washington and Yamhill and southwest Washington, including the following counties, Clark and Skamania. * WHEN...Until 730 PM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 335 PM PST, Doppler radar and automated rain gauges indicated moderate to heavy rain. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen with hourly rainfall rates ranging between 0.10 inches per hour and 0.30 inches per hour. - Additional rainfall amounts of 0.5 to 1 inches are expected over the area through 730 pm. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Hillsboro, McMinnville, Oregon City, Battle Ground, Washougal, St. Helens, Sandy, Woodland, Stevenson, Cascade Locks, Portland Downtown, Vancouver Downtown, Portland, Vancouver, Gresham, Beaverton, Tigard, Lake Oswego, Tualatin and West Linn. - http://www.weather.gov/safety/flood Information: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. |
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| PDX METRO | ||
Areas Affected: North Oregon Coast Range Lowlands - North Oregon Coast Range - Lower Columbia River - Tualatin Valley - West Hills and Chehalem Mountains - Inner Portland Metro - East Portland Metro - Outer Southeast Portland Metro - Willapa and Wahkiakum Lowlands - Willapa Hills - Cowlitz County Lowlands - North Clark County Lowlands - Inner Vancouver Metro - East Clark County Lowlands - South Washington Cascade Foothills |
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| Effective: Thu, 12/18 1:04pm | Updated: Thu, 12/18 4:01pm | Urgency: Expected |
| Expires: Thu, 12/18 7:00pm | Severity: Moderate | Certainty: Likely |
Details:
* WHAT...South winds 15 to 20 mph with gusts up to 45 mph expected. * WHERE...Greater Portland/Vancouver Metro, Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, North Oregon Coast Range Lowlands, North Oregon Coast Range, and South Washington Cascade Foothills. * WHEN...Until 7 PM PST this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Saturated soils could result in downed trees, and tree limbs could be blown down. Power outages may result. Information: Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects such as garbage cans and other objects that can easily blow around. |
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| PDX METRO | ||
Areas Affected: Central Oregon Coast Range Lowlands - West Central Willamette Valley - East Central Willamette Valley - Benton County Lowlands - Linn County Lowlands - Lane County Lowlands - Clackamas County Cascade Foothills - Cascade Foothills of Marion and Linn Counties |
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| Effective: Thu, 12/18 1:04pm | Updated: Thu, 12/18 4:01pm | Urgency: Expected |
| Expires: Thu, 12/18 7:00pm | Severity: Moderate | Certainty: Likely |
Details:
* WHAT...South winds 15 to 20 mph with gusts up to 45 mph expected. * WHERE...Central and Southern Willamette Valley, Central Oregon Coast Range Lowlands, Clackamas County Cascade Foothills, and Cascade Foothills of Marion and Linn Counties. * WHEN...Until 7 PM PST this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Saturated soils could result in downed trees, and tree limbs could be blown down. Power outages may result. Information: Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects such as garbage cans and other objects that can easily blow around. |
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| PDX METRO | ||
Areas Affected: Clatsop County Coast - Tillamook County Coast - Central Coast of Oregon - North Oregon Coast Range Lowlands - Central Oregon Coast Range Lowlands - North Oregon Coast Range - Central Oregon Coast Range - Lower Columbia River - Tualatin Valley - West Hills and Chehalem Mountains - Inner Portland Metro - East Portland Metro - Outer Southeast Portland Metro - West Central Willamette Valley - East Central Willamette Valley - Benton County Lowlands - Linn County Lowlands - Lane County Lowlands - West Columbia River Gorge of Oregon above 500 ft - West Columbia River Gorge I-84 Corridor - Upper Hood River Valley - Central Columbia River Gorge I-84 Corridor - Clackamas County Cascade Foothills - Cascade Foothills of Marion and Linn Counties - Lane County Cascade Foothills - North Oregon Cascades - Cascades of Marion and Linn Counties - Cascades of Lane County - South Washington Coast - Willapa and Wahkiakum Lowlands - Willapa Hills - Cowlitz County Lowlands - North Clark County Lowlands - Inner Vancouver Metro - East Clark County Lowlands - South Washington Cascade Foothills - West Columbia River Gorge - SR 14 - Central Columbia River Gorge - SR 14 - South Washington Cascades |
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| Effective: Thu, 12/18 2:42am | Updated: Thu, 12/18 4:01pm | Urgency: Future |
| Expires: Thu, 12/18 7:00pm | Severity: Severe | Certainty: Possible |
Details:
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Northwest Oregon and southwest Washington including the following counties. In Oregon: Benton, Clackamas, Clatsop, Columbia, Hood River, Lane, Linn, Lincoln, Marion, Multnomah, Polk, Tillamook, Washington, and Yamhill. In Washington: Clark, Cowlitz, Pacific, Skamania, and Wahkiakum. * WHEN...Through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Area creeks and streams are running high and could flood with more heavy rain. Landslides and debris flows are possible during this flood event. People, structures, and roads located below steep slopes, in canyons, and near the mouths of canyons may be at serious risk from rapidly moving landslides. * ADDITIONAL DETAILS... - An atmospheric river is forecast to bring periods of heavy rain to northwestern Oregon and southwestern Washington today. This system occurs at a time when area rivers continue to run high and soils remain saturated following heavy rain earlier in the month. During initial heavy rainfall today, the urban and small stream flooding threat will be most urgent, although the details of precise timing and location of the highest risk remains uncertain at this time. As runoff works its way downstream, the river flooding threat will increase tonight into Friday, with numerous area rivers now forecast to reach at least Minor flood stage. Slower reacting rivers may stay in flood stage into Saturday afternoon. - http://www.weather.gov/safety/flood Information: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. |
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