Willapa River - Mailboat Slough Entrance Tide Times and Heights
- 2:05 am1.34ft
- 9:21 am7.48ft
- 2:43 pm4.55ft
- 8:27 pm7.76ft
 
- 3:07 am1.37ft
- 10:07 am8.11ft
- 3:54 pm3.65ft
- 9:44 pm7.93ft
 
- 4:01 am1.37ft
- 10:46 am8.88ft
- 4:50 pm2.48ft
- 10:50 pm8.28ft
 
- 3:50 am1.44ft
- 10:23 am9.69ft
- 4:39 pm1.17ft
- 10:50 pm8.64ft
 
- 4:36 am1.57ft
- 10:59 am10.5ft
- 5:25 pm-0.1ft
- 11:46 pm8.95ft
 
- 5:20 am1.84ft
- 11:36 am11.16ft
- 6:10 pm-1.2ft
 
- 12:40 am9.13ft
- 6:04 am2.18ft
- 12:15 pm11.62ft
- 6:56 pm-1.94ft