Donald Trump issued an expedited emergency declaration that opened FEMA assistance after record rains and a dam breach in northwest Washington forced immediate evacuations and sent floodwaters toward Seattle suburbs.State authorities expanded earlier local evacuations of about 1,000 residents to immediate orders for nearly 47,000 people in three suburbs and advisories affecting close to 50,000 residents statewide, while Bob Ferguson warned the flooding could be historic and emergency crews rescued dozens including Eddie Wicks and his wife.Researchers including Charlotte Milne and USGS scientists blamed climate change for intensifying atmospheric rivers and urged faster, coordinated cross-border upgrades such as the Nooksack-Sumas Initiative as FEMA, county sheriffs and volunteer groups carried out water rescues and prepared for several more days of storm and complicated recovery.