There will be a planned outage of this website beginning 8:00 am CST on Monday, March 3 and lasting through Wednesday, March 5 as we migrate our network to EPA’s National Computer Center. During the move, this website will be unavailable. Please check the site on Thursday March 6, 2025 after 8 am CST as we hope to have all services restored by then. Il y aura une interruption programmée de ce site web à partir de 8h00 CST le lundi 3 mars et jusqu'au mercredi 5 mars, car nous transférons notre réseau vers le Centre National de l'Informatique de l'EPA. Pendant cette période, le site web sera indisponible. Veuillez vérifier le site le jeudi 6 mars 2025 après 8h00 CST, car nous espérons avoir rétabli tous les services d'ici là.

Quarterly Climate Impacts and Outlook: Great Lakes Region – March 2023

Posted: June 13, 2023
Lake Superior in the winter. Trees in the background, ice on rocks in the centre of the photo.

The “Quarterly Climate Impacts and Outlook: Great Lakes Region” is a brief bulletin published jointly by the National Oceanic and Atmospheric Administration and Environment and Climate Change Canada, summarizing the latest season’s weather and water level conditions and weather and water level-related impacts over the Great Lakes and provides an outlook for the upcoming quarter. It is published roughly four weeks after the end of each season. The geographic scope covers the Great Lakes basin and includes the international portion of the St. Lawrence River. It is published in March, June, September and December covering Winter (December-February); Spring (March-May); Summer (June-August) and Fall (September-November).

Winter 2023 Climate Impacts and Outlook Summary (PDF 2 MB)