SEATTLE—Seattle has only hit 100 degrees Fahrenheit (38 degrees Celsius) three times in recorded history. The National Weather Service (NWS) said the city could top triple digits several times in the coming days and may eclipse the all-time record of 103 F (39 C) on Monday. The Pacific Northwest sweltered as a historic heat wave hit Washington and Oregon, with temperatures in many areas expected to top out up to 30 degrees above normal. “If you’re keeping a written list of the records that will fall, you might need a few pages by early next week,” NWS Seattle tweeted. The extreme and dangerous heat was expected to break all-time records in cities and towns from eastern Washington state to southern Oregon, as concerns mounted about wildfire risk in a region that’s already experiencing a crippling and extended drought. Seattle was expected to edge above 100 F (38 C) over the …