WGUS86 KSEW 121816 FLSSEW Flood Statement National Weather Service Seattle WA 1016 AM PST Fri Dec 12 2025 ...The Flood Warning is extended for the following rivers in Washington... Cowlitz River At Randle affecting Lewis County. ...The Flood Warning continues for the following rivers in Washington... Chehalis River At Porter affecting Grays Harbor County. Chehalis River Above Grand Mound affecting Grays Harbor and Thurston Counties. .Dam operations to reduce the flood pool of area dams will increase the flow levels below the dams. PRECAUTIONARY/PREPAREDNESS ACTIONS... Motorists should not attempt to drive around barricades or drive cars 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 by this evening at 730 PM PST. && WAC027-130330- /O.EXT.KSEW.FL.W.0041.000000T0000Z-251215T0349Z/ /CRPW1.1.ER.251210T0649Z.251212T1030Z.251214T1849Z.NO/ 1016 AM PST Fri Dec 12 2025 ...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Chehalis River at Porter. * WHEN...Until Sunday evening. * IMPACTS...At 49.0 feet, the Chehalis River in Grays Harbor will flood pasture lands and many roads...including SR 12 between Oakville and Rochester. High tidal levels at Aberdeen will worsen flooding along the lower reaches. * ADDITIONAL DETAILS... - At 9:45 AM PST Friday the stage was 49.5 feet. - Flood stage is 48.0 feet. - Forecast...The river is expected to cresting now at around 49.5 feet. It will then fall below flood stage late Sunday morning. - http://www.weather.gov/safety/flood && LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360 4707 12333 4693 12318 $$ WAC027-067-130330- /O.EXT.KSEW.FL.W.0038.000000T0000Z-251214T0122Z/ /CGMW1.2.ER.251209T1712Z.251211T1500Z.251213T1622Z.NO/ 1016 AM PST Fri Dec 12 2025 ...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW AFTERNOON... * WHAT...Moderate flooding is occurring and minor flooding is forecast. * WHERE...Chehalis River above Grand Mound. * WHEN...Until tomorrow afternoon. * IMPACTS...At 142.5 feet, the Chehalis River in Thurston County will flood several roads in Independence Valley with swiftly moving water including SR-12 and James, Independence, Moon and Anderson Roads. Flood waters will cut off access to and from Chehalis Reservation and inundate nearby farm lands. Some residential structures may be threatened. * ADDITIONAL DETAILS... - At 10:00 AM PST Friday the stage was 142.6 feet. - Flood stage is 141.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM PST Friday was 143.1 feet. - Forecast...The river crested and is falling and expected to fall below flood stage tomorrow morning. - http://www.weather.gov/safety/flood && LAT...LON 4672 12305 4677 12315 4682 12340 4693 12318 4690 12304 4681 12289 $$ WAC041-130330- /O.EXT.KSEW.FL.W.0020.000000T0000Z-251213T1347Z/ /RAWW1.3.ER.251209T0703Z.251211T0515Z.251213T0447Z.NO/ 1016 AM PST Fri Dec 12 2025 ...FLOOD WARNING NOW IN EFFECT UNTIL LATE TONIGHT... * WHAT...Moderate flooding is occurring and minor flooding is forecast. * WHERE...Cowlitz River at Randle. * WHEN...Until late tonight. * IMPACTS...At 20.0 feet, the Cowlitz River will cause flooding from the vicinity of Randle downstream through Riffe Lake...inundating many roads including US Highway 12 and much of the farm lands. * ADDITIONAL DETAILS... - At 10:00 AM PST Friday the stage was 20.5 feet. - Flood stage is 18.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM PST Friday was 22.2 feet. - Forecast...The river is falling and expected to fall below flood stage this evening. - http://www.weather.gov/safety/flood && LAT...LON 4645 12180 4645 12194 4640 12219 4654 12220 4659 12198 4661 12183 $$ JBB