What forecasters described as what might be the strongest storm this season is expected to hit Southwest Washington and Northwest Oregon later Monday, bringing gusty winds, heavy rain and even some flooding to the region for the first few days of the week. Where that wind will hit — as well as its intensity — was unclear, said Colby Neuman, a meteorologist at the National Weather Service in Portland. “The models in this kind of pattern have a really hard time nailing down exactly where the front’s going to be at what time.