Instruction Rules of Thumb
By Zone, Wind Direction, Speed, and Maximum Mixing Height
Spring
Fall
Zone Map
601 North Coast Range
601 North Coast Range
602 North Coast Range
602 North Coast Range
603 North Coast Range
603 North Coast Range
605 Cascades
605 Cascades
606 Cascades
606 Cascades
607 Cascades
607 Cascades
608 Cascades
608 Cascades
609 Cascades
609 Cascades
610 Cascades
610 Cascades
611 Cascades
611 Cascades
612 North Coast Range
612 North Coast Range
615 South Coast Range
615 South Coast Range
616 W of R8W
616 W of R8W
616 E of R9W
616 E of R9W
616 Cascades
616 Cascades
617 Cascades
617 Cascades
618 South Coast Range
618 South Coast Range
619 South Coast Range
619 South Coast Range
620 Coast Range
620 Coast Range
620 Cascades
620 Cascades
622 Cascades
622 Cascades
623 Cascades
623 Cascades
Siskiyous
Siskiyous