Minor

Minimal to no known threat to life or property

Minor Dense Fog Advisory | Effective 08/31/2026 23:27

* 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...Sand Island to Bayfield WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...For the Dense Fog Advisory, until 7 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

Minor Dense Fog Advisory | Effective 08/31/2026 23:27

* 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 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.

Minor Dense Fog Advisory | Effective 08/31/2026 23:27

* 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 and Taconite Harbor to Silver Bay 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

Puerto Rico Minor Flood Advisory | Effective 08/31/2026 22:52

* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Carolina, Gurabo, San Juan, Trujillo Alto... * WHEN...Until 345 AM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. Water over roadways. * ADDITIONAL DETAILS... - At 151 AM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Up to 1 inch of rain has fallen.

Colorado Minor Flood Advisory | Effective 08/31/2026 22:01

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Cheyenne County in east central Colorado... Southwestern Kit Carson County in east central Colorado... * WHEN...Until 300 AM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1101 PM MDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 3 inches of rain have fallen.

Minor Dense Fog Advisory | Effective 08/31/2026 22:02

* WHAT...Dense fog will reduce visibility to 1 NM or less. * WHERE...Grand Portage to Grand Marais MN, Grand Marais to Taconite Harbor MN and Taconite Harbor to Silver Bay Harbor MN. * WHEN...Until 10 AM CDT this morning. * 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.

Puerto Rico Minor Flood Advisory | Effective 08/31/2026 22:12

* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Canovanas, Humacao, Juncos, Las Piedras, Southeastern Loiza, Naguabo,Rio Grande... * WHEN...Until 415 AM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 111 AM AST, Doppler radar indicated heavy rain due to

Minor Dense Fog Advisory | Effective 08/31/2026 21:51

* 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, Upper Entrance of Portage Canal to Eagle River MI, Eagle River to Manitou Island MI, 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

Puerto Rico Minor Flood Advisory | Effective 08/31/2026 21:59

* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Caguas, Cayey, Cidra, San Lorenzo... * WHEN...Until 400 AM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Dangerous flows over low-water crossings. * ADDITIONAL DETAILS... - At 1258 AM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 1.5 inches of rain have fallen.

Minor Dense Fog Advisory | Effective 08/31/2026 21:39

* WHAT...Dense fog with visibility occasionally dipping below one half of a mile expected. * WHERE...Winthrop Harbor to Wilmette Harbor IL. * WHEN...Until 4 PM CDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The densest fog is favored near and north of Waukegan. Visibility will worsen with increasing distance away from the shoreline. 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.
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