Chile−Cheese Chowder

2 bacon slices
1 cup chopped carrot
1 cup chopped, seeded, poblano chiles
1 cup chopped onion
2 tablespoons minced, seeded jalapeno peppers
1/2 teaspoon ground cumin
3 cloves garlic, minced
2 (16 oz.) cans fat−free chicken broth
5 cups diced, peeled, baking potato
1/2 teaspoon salt
1/3 cup flour
2 1/2 cups 1% milk
3/4 cup shredded Monterey Jack cheese
1/2 cup shredded reduced−fat sharp cheddar cheese
2/3 cup sliced green onions