Saturday, September 08, 2018

Gordon to bring heavy rain to Montreal - Florence takes run at east coast

Tropical activity has increased significantly over the last week. (NHC)
Hurricane season is well underway with 4 systems creating a stir in the Atlantic basin. The Atlantic hurricane season runs from June 1 to November 30, but September has always produced the most activity. Forecasters are tracking the remnants of tropical storm Gordon over Arkansas, tropical storm Florence, newly formed tropical storm Helene and soon to be Isaac.

The remnants of tropical storm Gordon are dumping heavy rain over the Midwest US. Amounts have been impressive, with 100 to 200 mm in several locations. Widespread flood warnings are in effect, as far north as Pennsylvania. A special weather statement has been posted for the St. Lawrence Valley and locations along the shoreline of the Great Lakes, for 30 to 60mm of rain on Monday. What is left of Gordon should pass fairly close to Montreal late Monday, with gusty winds and heavy rain expected.

Florence is expected to strengthen into a major hurricane this week while threatening the US east coast. (NHC) 

Florence
Our attention will then focus on tropical storm Florence. Forecasters at the National Hurricane Center are entering uncharted waters with Florence. This storm has been difficult to pin down, not following any rules, with numerous different scenarios at play. One thing is certain this morning, Florence will strengthen and become a major hurricane as it approaches the southeast US coast by the middle of the upcoming week. Models have the storm reaching at least a Category 4 status by Wednesday, with 140 mph winds. What the models can't seem to nail down is a track. While Florence could still turn northeast out to sea, that window of opportunity appears to be closing. A likely target appears to be somewhere along the Carolina coast. I fear for my beloved Outer Banks. Landfall, if any, is still 5 to 6 days out, so a lot can change, especially with fickle tropical systems. Stay tuned! In the meantime stay dry on Monday in Montreal.

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