# Small Craft Advisory: St Ignace to False Detour Channel; 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island; Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary; Sturgeon Pt to Alabaster MI — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/771d356ba53524bc

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-21 02:15 ingested 2026-07-21 08:27

[original source ↗](http://www.weather.gov/)

## extract

Small Craft Advisory — St Ignace to False Detour Channel; 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island; Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary; Sturgeon Pt to Alabaster MI
Severity: Minor. Certainty: Likely.
* WHAT...Highest gusts up to 30 kts from the northwest and
highest waves around 10 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of
Mackinac Bridge to Presque Isle Light MI including Bois Blanc
Island, Presque Isle Light to Sturgeon Pt MI Including Thunder
Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 11 PM EDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.