Minor

Minimal to no known threat to life or property

Minor Dense Fog Advisory | Effective 09/01/2026 04:54

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM, Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park and Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...Until 11 AM EDT /10 AM CDT/ this morning.

Minor Dense Fog Advisory | Effective 09/01/2026 04:28

* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Grand Marais to Taconite Harbor MN. * WHEN...For the Dense Fog Advisory, until 10 AM CDT this morning. For the Small Craft Advisory, from 1 PM this afternoon to 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

Minor Dense Fog Advisory | Effective 09/01/2026 04:28

* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Grand Portage to Grand Marais MN. * WHEN...For the Dense Fog Advisory, until 10 AM CDT this morning. For the Small Craft Advisory, from 11 AM this morning to 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

California, Oregon Minor Frost Advisory | Effective 09/01/2026 04:01

* WHAT...Temperatures between 38 and 33 degrees will result in frost formation. * WHERE...In California, Modoc County including the communities of Alturas, Likely, Canby, and Lookout. In Oregon, parts of Klamath County including the communities of Crescent, Chemult, Sprague River, Beatty, Bly, Dairy, Bonanza, and Lorella. Additionally, parts of Lake County including Fort Rock and across the Christmas Valley, Silver Lake, and areas just east of Lakeview. * WHEN...From 4 AM to 8 AM PDT Wednesday.

Minor Dense Fog Advisory | Effective 09/01/2026 03:48

* WHAT...Dense fog will reduce visibility to 1 NM or less. * WHERE...Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake and Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore. * WHEN...Until 1 PM CDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use

Minor Dense Fog Advisory | Effective 09/01/2026 01:48

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage and Seul Choix Point to Point Detour MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

Minor Dense Fog Advisory | Effective 09/01/2026 01:48

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM, Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park and Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...Until 11 AM EDT /10 AM CDT/ this morning.

Minor Dense Fog Advisory | Effective 09/01/2026 01:48

* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 3 ft expected. * WHERE...Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT this morning. For the Small Craft Advisory, from 1 PM this afternoon to 9 PM EDT this evening.
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