Michigan
| Site | Code |
|---|
| HOWELL | K3HE |
| ALPENA CO. REGIONAL | KAPN |
| ANN ARBOR MUNICIPAL | KARB |
| KALAMAZOO INTL ARPT | KAZO |
| BENTON HARBOR/ROSS | KBEH |
| BATTLE CREEK | KBTL |
| CADILLAC/WEXFORD CO | KCAD |
| CHIPPEWA INTL(AWOS) | KCIU |
| HOUGHTON CO. MEM | KCMX |
| DETROIT CITY ARPT | KDET |
| DETROIT METRO | KDTW |
| ESCANABA (AWOS) | KESC |
| FLINT/BISHOP INTL | KFNT |
| GRAND RAPIDS INTL | KGRR |
| HOUGHTON LAKE ARPT | KHTL |
| IRON MOUNTAIN/FORD | KIMT |
| IRONWOOD (AWOS) | KIWD |
| JACKSON/REYNOLDS | KJXN |
| LANSING/CAPITAL | KLAN |
| MANISTEE (AWOS) | KMBL |
| SAGINAW/TRI CITY | KMBS |
| MUSKEGON | KMKG |
| MENOMINEE (AWOS) | KMNM |
| MARQUETTE CO. ARPT& | KMQT |
| SELFRIDGE ANGB | KMTC |
| WURTSMITH AFB | KOSC |
| HARBOR BEACH(RAMOS) | KP58 |
| COPPER HARBOR RAMOS | KP59 |
| SEUL CHOIX PT(AMOS) | KP75 |
| ST.CLAIR COUNTY INT | KPHN |
| PELLSTON/EMMET CO. | KPLN |
| PONTIAC-OAKLAND | KPTK |
| TRAVERSE CITY/CHERR | KTVC |
| SAULT STE MARIE & | KY62 |
| DETROIT/WILLOW RUN | KYIP |