Subtrop 1 began as a subtropical depression that formed just north of Bermuda on August 18, 1984. It moved northeast and reached subtropical storm strength by August 19. The storm reached maximum wind speeds of 93 km/h. Subtrop 1 continued to move northeastward off the United States coast and into the mid-Atlantic. The storm remained well offshore of Newfoundland, just clipping the outer Grand Banks on August 20, causing little, if any, damage. The low pressure system exited the CHC Response Zone on the morning of August 21.
Rainfall image map of Subtrop 1, which remained well offshore of Newfoundland, just clipping the outer Grand Banks on August 20, 1984, causing little, if any, damage. The low pressure system exited the Canadian Hurricane Centre Response Zone on the morning of August 21, 1984. No significant rainfall over Canadian land areas
August 22, 1984
- Winds of 100 km/h hit the southwest coast (ET)
- 55 mm of rain was measure at a local weather office (ET)
- Delayed the ferry departure from Port aux Basques (ET)
Subtropical Storm 1 started tracking in the Canadian Hurricane Centre response zone at position 1 outlined in green, with winds of 34 knots as it tracked northeast southeast of Newfoundland. It continued slowly northeast to position 2 outlined in yellow with winds of 48 knots and to position 3 outlined in brown with winds of 48 knots and out of the response zone. As it tracked through Atlantic Canada the storm reached a maximum wind speed of 50 knots, with an mslp of 1001 millibar
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