| Provisional data, subject to revision -- Please Read |
| Stations |
| Spirit Lake at Tunnel - 14240304 |
| Castle Lake - 14240446 |
| South Fork Toutle at Toutle - 14241500 |
| Toutle River at Tower Road - 14242580 |
| Cowlitz River at Castle Rock - 14243000 |
| Lewis River above Muddy River near Cougar - 14216000 |
| Muddy River below Clear Creek - 14216500 |
| Canyon Creek near Amboy - 14219000 |
| Speelyai Creek near Cougar - 14219800 |
| Lewis River at Ariel - 14220500 |
| East Fork Lewis River near Heissen - 14222500 |
| Naselle River near Naselle - 12010000 |
| Mudflow Detection Sites |
| Hoala Mudflow Detection |
| Loowit Falls Mudflow Detection |
| Maratta Creek Mudflow Detection |
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