| Years | 1 hour | 6 hour | 24 hour |
|---|---|---|---|
| 2 yr | SE AK | SE AK | SE AK |
| 10 yr | SE AK | SE AK | SE AK |
| 100 yr | SE AK | SE AK | SE AK |
| Years | 1 hour | 6 hour | 24 hour |
|---|---|---|---|
| 2 yr | SC AK | SC AK | SC AK |
| 10 yr | SC AK | SC AK | SC AK |
| 100 yr | SC AK | SC AK | SC AK |
| Years | 1 hour | 6 hour | 24 hour |
|---|---|---|---|
| 2 yr | Srn AK | Srn AK | Srn AK |
| 10 yr | Srn AK | Srn AK | Srn AK |
| 100 yr | Srn AK | Srn AK | Srn AK |
| Years | 1 hour | 6 hour | 24 hour |
|---|---|---|---|
| 2 yr | Nrn AK | Nrn AK | Nrn AK |
| 10 yr | Nrn AK | Nrn AK | Nrn AK |
| 100 yr | Nrn AK | Nrn AK | Nrn AK |
Washington, D.C.
1963