Fires: Heat, dryness, lightning, wind fuel wildfire flames 07/22/02 STUART TOMLINSON and ERIC MORTENSON PAISLEY -- Oregon National Guard troops plan to join the battle today as 16 forest fires continue to rage unchecked in Central and Southern Oregon, burning 219,781 acres during the weekend and threatening hundreds of isolated homes and ranches despite the efforts of nearly 8,000 firefighters. Gov. John Kitzhaber is expected to visit the Paisley area in south-central Oregon this afternoon, where the Winter and Tool Box fires merged during the weekend into a "megafire" covering more than 87,000 acres, the state's largest. He will also...