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25-07-2019, 21:00   #1
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Subtropical-looking system heading towards France on the GFS?

This is an unusual one, and I'm wondering what this system would be properly termed as. It starts off as a disturbance emerging from the Northeast US coast - possible associated with a failed disturbance which almost became a tropical cyclone in the Gulf of Mexico a few days ago, but was choked by Saharan dust and wind shear. It travels across the Atlantic looking like a classic extratropical depression, but as it approaches france its fronts seem to disappear entirely from the charts, which is very unusual at least to my knowledge. It also boasts winds of almost 70mph at that time. It's shown on the GFS at 96 hours, and on the ECM (although a lot less closed in terms of circulation) so it's just inside the reliable window - anyone know how a system like this would end up being classified?

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29-07-2019, 07:10   #2
M.T. Cranium
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As you say, it's a bit of an outlier, not quite a subtropical storm but certainly not a typical midsummer low either. Circulation around it this morning is 30 to 45 knots. Will bring some strong gusts onto land later today in Brittany and Cornwall.
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29-07-2019, 11:29   #3
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