Marine Thunderstorm Wind — Grand Portage To Grand Marais Mn, Lake Superior

2019-07-15 · near Grand Marais, Grand Portage To Grand Marais Mn, Lake Superior

Event narrative

The gust was recorded via a personal weather station near Grand Marais.

Wider weather episode

An area of low pressure over southern Manitoba the morning of the 15th moved to near southern Hudson Bay by the morning of the 16th. A cold front associated with this low moved across the Northland during the afternoon and evening hours of the 15th. A warm front had moved through on the previous day brought a warm and unstable airmass in its wake. The cold front then worked with this airmass to create severe storms from northeast Minnesota into northwest Wisconsin and western Lake Superior. Winds with these storms gusted to around 50 mph near Grand Marais as they began to move over the lake.

View location on OpenStreetMap → (47.7695, -90.2766)

Source: NOAA Storm Events Database, event_id 843361. Narrative written by the NWS forecast office that issued the report.