| Johnstone Strait - Marine Weather - Environment Canada |
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| Forecast for Today Tonight and Sunday. - Johnstone Strait |
| Wind southeast 10 to 20 knots diminishing to light this evening.
Wind light Sunday. Showers. Risk of thunderstorms this afternoon and Sunday
afternoon. Issued 04:00 AM PDT 18 September 2021 |
| Extended Forecast - Johnstone Strait |
| Monday: Wind light increasing to southeast 10 to 20
knots in the afternoon. Tuesday: Wind southeast 15 to 25 knots diminishing to southeast 5 to 15. Wednesday: Wind northwest 10 to 20 knots. Issued 04:00 AM PDT 18 September 2021 |