Station Name: GRAND PORTAGE RIVER AT GRAND PORTAGE MN
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 623 feet

Nearest Address:
1 Upper Rd
Grand Portage, MN 55605
Cook County

GPS Coordinates: 47.9634982, -89.6834233

Nearby Water Temperatures

Dense Fog Advisory issued July 30 at 10:49AM CDT until July 30 at 4:00PM CDT by NWS Duluth MN

Effective: Thu July 30, 2026, 10:49 AM
Expires: Thu July 30, 2026, 4:00 PM

* WHAT...Dense fog will reduce visibility to 1/2 to 1 NM. * WHERE...Grand Portage to Grand Marais MN, Grand Marais to Taconite Harbor MN and Taconite Harbor to Silver Bay Harbor MN. * WHEN...Until 4 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 your radar and compass.

yellow warning - severe thunderstorm - in effect

Effective: Thu July 30, 2026, 10:59 AM
Expires: Thu July 30, 2026, 1:58 PM

At 10:59 a.m. EST (11:59 a.m. EDT), Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts and very heavy rain. Thunderstorm Location: Near Gillies Motion: Moving very slowly Hazards: Rain: very heavy (50 - 100 mm) Wind: Strong (90 km/h) Locations in the Path: Arrow Lake Provincial Park, Suomi, Nolalu, Gillies, Pardee, Pigeon River ### Local utility outages are likely. Heavy rain may cause flash flooding and significant reductions to visibility. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Don't drive through flooded roadways. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.

yellow warning - severe thunderstorm - in effect

Effective: Thu July 30, 2026, 10:59 AM
Expires: Thu July 30, 2026, 1:58 PM

At 10:59 a.m. EST (11:59 a.m. EDT), Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts and very heavy rain. ### Local utility outages are likely. Heavy rain may cause flash flooding and significant reductions to visibility. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Don't drive through flooded roadways. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.

yellow warning - severe thunderstorm - in effect

Effective: Thu July 30, 2026, 10:07 AM
Expires: Thu July 30, 2026, 1:06 PM

At 10:07 a.m. CDT (10:07 a.m. EST, 11:07 a.m. EDT), Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts, up to quarter size hail and very heavy rain. Thunderstorm Location: About 20 km southwest of Shebandowan Motion: Moving southeast at 35 km/h Hazards: Wind: strong (up to 90 km/h) Hail: up to quarter size (up to 2.5 cm) Rain: very heavy (50 - 100 mm) Locations in the Path: Shebandowan, Kakabeka Falls Provincial Park, Kakabeka Falls, Hymers ### Heavy rain may cause flash flooding and significant reductions to visibility. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Take immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris and hail. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.

yellow warning - severe thunderstorm - in effect

Effective: Thu July 30, 2026, 10:07 AM
Expires: Thu July 30, 2026, 1:06 PM

At 10:07 a.m. CDT (10:07 a.m. EST, 11:07 a.m. EDT), Environment Canada meteorologists are tracking a severe thunderstorm capable of producing strong wind gusts, up to quarter size hail and very heavy rain. ### Heavy rain may cause flash flooding and significant reductions to visibility. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Take immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris and hail. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.