the Chehalis River in Lewis County will cause shallow flooding of farm lands and some roads. Flood waters will also cut off access to and from the Chehalis Reservation and inundate nearby farm lands. The Chehalis is also flood-prone, particularly when moisture-laden atmospheric rivers hit logged and developed zones east of the Willapa Hills. The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. Chehalis River Basin Flood Authority Meetings: November 19, 2020 (Call/Web Conference) September 17, 2020 (Call/Web Conference) July 16, 2020 (Call/Web Conference) May 21, 2020 (Call/Web Conference) April 16, 2020 (Call/Web Conference) January 23, 2020 (Olympia) December 19, 2019 (Call) July 18, 2019 (Veteran's Memorial Museum) Friendly reminder - Do not report emergencies here. It also would have significant adverse effects, mainly along the Chehalis River in the area above the proposed dam and below it to the confluence with the South Fork of the Chehalis River. The National Weather Service has issued a flood warning for Centralia and Chehalis. The local Flood Control Zone District is proposing a new dam to prevent extreme high water. A catastrophic flood in 2007 is often referenced by supporters who want the dam for the Chehalis River. Find out if your property is in a Special Flood Hazard Area. The flooding in December 2007/2009 and in February 1996 was caused by prolonged precipitation accompanied by snowmelt, caused by a warm-weather trend known as a “Pineapple Express,” caused many rivers and creeks throughout the Chehalis River watershed to rise to well over the 100-year flood levels, causing flooding in both rural and urban areas. Courtesy of Washington Department of Ecology. Note that flows at Doty were more than double the 1996 peak whereas the flows at Grand Mound were only slightly higher. Major floods can reach I-5; in 2009, floodwaters closed a 20-mile stretch of I-5 for several days in Lewis County. The Chehalis Basin Strategy is a public process and the Chehalis Basin Alliance is working tirelessly to ensure this process finds smart solutions that will help manage the Chehalis River system for both wild fish and flood reduction. Quickly and easily access flood information when you need it, and sign up for email alerts. Swift flood waters will cover some roads. The potential impacts of the dam to the Chehalis River system are likely to be many and varied and a Draft Environmental Impact Statement (DEIS) being prepared by the WA Dept. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Chehalis River Basin. FLOOD WARNING for local rivers posted. USGS 12031000 CHEHALIS RIVER AT PORTER, WA. Chance of Exceeding Levels During Entire Period, Short-term Probabilistic Guidance (Experimental), U.S. Geological Survey (USGS) Data and Site Info for Centralia, Flood Smart/National Flood Insurance Program. The public comment period for the draft state environmental review (EIS) of the proposed Chehalis River Basin Flood Damage Reduction Project ended on May 27, 2020. Swift flood waters will cover some roads. the Chehalis River in Lewis County will flood Riverside Golf Course...farms...and some residential areas around Florida Ave...Donahue Rd...Airport Rd...and Military Rd. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Chehalis River Basin. For some types of mortgages you may be required to have flood insurance as part of your loan. The Chehalis River in Thurston County will flood several roads in Independence Valley with swift moving water including SR-12 and James Road, Independence Road, Moon Road, and Anderson Road. The Satsop River is in flood warning and the Chehalis River near Porter is in flood warning,” Cleverly said. Each river has one or more gauges monitoring water levels, and has a description of where the gauge is located along the river. A main focus in the Chehalis Basin Strategy is to reduce damage from catastrophic flooding. Lewis County has Flood Phase Information for this gage. For specific information regarding Chehalis and the Chehalis River Basin, visit the Washington State Department of Ecology at: Chehalis River Basin Authority. Formal Environmental Review Has Started. For almost 100 years, there has been a failure to address these issues in any meaningful manner. Construction Rules: There are building and grading regulations that are designed to protect your property and prevent you from incidentally causing flood damage to your neighbors. The flooding in December 2007/2009 and in February 1996 was caused by prolonged precipitation accompanied by snowmelt, caused by a warm-weather trend known as a “Pineapple Express,” caused many rivers and creeks throughout the Chehalis River watershed to rise to well over the 100-year flood levels, causing flooding in both rural and urban areas. If you notice any errors in the below information, please contact our. Chehalis River Basin for the February 1996 flood (top) and the December 2007 flood (bottom). Lewis County Emergency Management said Wednesday morning that the biggest flood concern is the Cowlitz River at Randle as well as the Chehalis River near Doty, although earlier predictions of river levels seemed to have overestimated how high levels would get. PROVISIONAL DATA SUBJECT TO REVISION. Restorative Flood Protection would reduce flood peaks on the Chehalis River downstream of the confluence with the Newaukum River, which is where the greatest flood damages have historically occurred. The upper and lower parts of the Chehalis River were at risk for flooding, the Weather Service said. On the coast, Pacific County Emergency Management issued a flood … Chehalis River Basin for the February 1996 flood (top) and the December 2007 flood (bottom). is the approximate location based on the latitude/longitude coordinates Flooding, strong winds and at least one landslide in the region are causing several road closures and power outages. The U.S. Army Corps of Engineers is doing a separate environmental review of the Flood District’s proposal under the National Environmental Policy Act (NEPA). This stage corresponds roughly to a Phase 3 flood in the Lewis County flood system. And yet, the 115-mile-long Chehalis River, which makes a wide curl east to Centralia before swinging northwest and emptying into Grays Harbor, still proves impossible to contain. The Chehalis River has flooded 18 times in the past 20 years. USGS 12020000 CHEHALIS RIVER NEAR DOTY, WA. The new dam would only trap water when the river reaches a certain volume. The Chehalis River in Thurston County will flood several roads in Independence Valley with swift moving water including SR-12 and James Road, Independence Road, Moon Road, and Anderson Road. Chehalis River Basin Flood Authority Current Agenda, Meeting Materials and Archive Documentation found here: www.ezview.wa.gov Flood Authority meetings are held the third Thursday of every month, with every other month a telephone meeting . The Chehalis River Basin Flood Control Zone District is proposing to construct a new flood retention facility and temporary reservoir near the town of Pe Ell, Washington, and levee improvements around the Chehalis-Centralia Airport in Chehalis, Washington. This stage corresponds roughly to a Phase 4 flood in the Lewis County flood system. Flood waters begin to inundate SR 6...I-5 ramps at SR 6...Main St Chehalis...and around Plummers and Hayes Lakes. Our floodplains and riparian areas are not just a location for flood problems. the Chehalis River in Lewis County will cause moderate flooding including Fort Borst Park...residential and commercial areas...farms...and many roads from Chehalis to Centralia. This stage corresponds roughly to a Phase 3 flood in the Lewis County flood system. The Chehalis River Basin Flood Warning System has the capability to send email alerts to anyone interested in receiving notification about significant rising river levels from any of the following river gages: Our mission is to ensure a bright future for the Chehalis River Basin’s invaluable natural resources and the people who call this region home. Chehalis River Basin Early Warning System. It has emerged from a basin-wide, multi-county process that started after Chehalis River flooding in 2007 shut down Interstate 5 for three days at Centralia. Flood Retention Facility. The Chehalis River has flooded 18 times in the past 20 years, sometimes submerging Interstate 5 near Olympia. Be Floodsmart! Chehalis River Basin Flood Damage Reduction Project Description of the Proposed Project. Click here to access the Chehalis River Basin Flood Warning System. For details. A draft environmental impact statement is now out for public comment.. The National Weather Service issued a flood warning for the Chehalis River above Grand Mound on Tuesday, according to an alert from Thurston County Emergency Management. Find information on weather, rainfall, and river forecasts; road conditions; view flood maps, and gage data graphs and maps; and stay up to date on Chehalis River Basin Flood Authority news. The measures already underway include raising homes, buying out frequently flooded properties, working with governments in the basin to assure that local land use policies reduce the risk of future damage. Fax: (360) 345-1039 Swift flood waters will cover some roads. USGS 12020000 CHEHALIS RIVER NEAR DOTY, WA. Funding for this site is provided by the cooperators / programs below: USGS; Station Notes This stage corresponds roughly to a Phase 1 flood in the Lewis County flood system. chehalis river at wwtp at chehalis, wa; south fork chehalis river near wildwood, wa; chehalis river near adna, wa; south fork newaukum river near onalaska, wa; nf newaukum river above bear creek near forest, wa; newaukum river near chehalis, wa; chehalis river at centralia, wa; skookumchuck river at centralia, wa email: Comdev@ci.chehalis.wa.us, CITY OF CHEHALIS WASHINGTON 350 N MARKET BOULEVARD, CHEHALIS, WA, COVID-19 Public Health Information and Data, Live Streaming-On Demand Viewing of Council Meetings, Vernetta Smith Chehalis Timberland Library, Lewis County Multi-jurisdictional Hazard Mitigation Plan, information about national flood insurance, https://lewiscountywa.gov/departments/emergency-management/lewis-county-alert/, https://lewiscountywa.gov/departments/emergency-management/. 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