Gabrielle and two in the wings

 Gabrielle

Gabrielle became a powerful category 4 with max sustained winds of 140 mph.She passed around 200 miles to the east of Bermuda last evening/night. The worst of her conditions Stayed out over the ocean But Bermuda was impacted by large swells and very strong rip currents along with some gusty winds. At the 11:00 am update she still had winds of 140 mph with a min central pressure of 948 mb. The 2:00 pm update has her maximum sustained winds at 130 mph. Still a borderline category 4 hurricane.

Image credit Tomer Burg

She has undoubtedly peaked And she should Continue to slowly weaken as she pushes east northeast at around 20 mph. Tomorrow and Thursday she should continue to quickly weaken as she pushes east towards the Azores. She should still be a strong extra tropical Cyclone as she gets around the Azores for Thursday and Friday. It's unclear if she will make a direct impact on the Azores or pass to the north. Her remnants Should reach Portugal early next week.

Swell and rip currents will still be an issue along the US East Coast and Atlantic Canada for the next couple of days.

The two invest in the wings.

Invest 93L

93L The one with the red x, has two day development odds at 50% and 7 day odds at 90% concurrently. 93L could become at least a tropical depression by Thursday. 93L looks likely to stay away from the East Coast of the US. But we will see!

Invest 94L

94L marked with the orange X. Has two day development odds of 20% and seven day odds of 60%. 94L will be moving into the Caribbean in a few days. Currently 94L Is dealing with moderate to strong wind shear. But by the time we get into the weekend the amount of shear should lessen quite a bit.

Both of these are close enough to each other  that they will have an impact on each other's track. This will be due to something called the  Fujiwhara  effect, Where two tropical cyclones kind of move around each other. I did a post on this  quite some time ago. Here is the link.  Fujiwhara Effect. Sorry, I Thought this went to a link on this subject in more depth. But it was tied into my old Facebook Northeast Weather page. But it's still a good read.

NWS link on the effect

That will effect the forecasting of both systems tracks. Especially 94L when it gets into the eastern Caribbean. The Sea surface temperatures (SST) in the Caribbean are very warm running 86°F to 88°F. Along with a lot of deep water heat content.  These will give 94L a lot of fuel to develop on.

 But 93L We'll have a lot to say about that. We will have to wait and see how strong and how fast she can develop. There is also going to be a trough sitting over the southeast US. Both of these things will  impact where 94L eventually goes. 

So at this point 94L could head towards Florida or the Bahamas. Maybe head towards the Gulf. This could even try to come up the Coast towards the Middle Atlantic. it's just too early to know. Those in the Caribbean and Gulf of America. As well as those along the East Coast of the US into Atlantic Canada will want to keep an eye on 94L.

I will be posting a little winter outlook later today