09/24/2025

Here's a look at the current surface chart and radar image. 

There is an upper level low North of the great lakes That is in the process of starting to drop south and east. We have the front dropping further into the region, In the process of stalling out. We're also seeing Low pressure developing to the west That will move along this frontal boundary. The radar shows rain showers moving across Pennsylvania And some rain showers around Boston and southeast New England with a few scattered showers elsewhere. 

For Thursday The stalled boundary will start to move back north as he warm front bringing scattered showers and thunderstorms with it. Temperatures and humidity will also be climbing with the frontal passage. At the same time we're going to see another cold front approach from the west that will move through the region. As the cold front moves through It will bring widespread scattered rain showers and thunderstorms. Some of these thunderstorms will be strong to severe with a chance for strong possibly damaging winds, hail,  frequent lightning and heavy localized downpours.

Thursday night and friday near or just off the coast, keeping things unsettled. High pressure will build in out of Canada for Saturday Providing mostly dry conditions Across the region Temperatures will also be cooler with less humidity. then for Saturday night and Sunday We will have an upper level feature to our west. We will also be watching a developing tropical system to our south and east. Depending on how these two interact we could see tropical moisture ahead of that tropical disturbance Try to move northward into parts of the northern Middle Atlantic on Sunday. Depending on how these two features interact We could see high pressure begin to drop south out of Canada for Sunday night into Monday. This high pressure will continue to drop south for Tuesday and set up overhead for Wednesday. If the high pressure can prevail and take over the pattern over the Northeast. We should be mainly dry with comfortable conditions for the first half of next week. 

Could we see two hurricanes in the Atlantic basin next week?

The Atlantic basin is busy.

Gabrielle has maximum sustained winds of 110 miles an hour, with a minimum central pressure of 962MB, Tracking east northeast at around 25 mph.

She will continue to race across the north Atlantic likely getting near or over the Azores late Thursday and Friday. By then she should be weakened down to the equivalent of a category 1 hurricane. Then her remnants should run into Portugal on Monday.

The dueling twins Invest 94L and invest 93L.

The National Hurricane Center has I-93L's development chances over the next 7 days at 90%, with I-94L having a 80% chance of development over the next 7 days.

As I said yesterday both of these are close enough that they will likely interact with each other. How that interaction goes will decide how they track. How strong they interact If at all will determine their long-term fate and intensification chances.

Both of these should generally continue to head west around the edge of the Bermuda high, before turning towards the north. We're going to have troughs near and possibly off the east coast of the US these will also have a big impact on how things interact and track. 

I-93L

Image credit Tomer Burg 

I-93L is the further east of the two. 93L Could become a tropical depression later today. But more likely it will be tomorrow. As I said yesterday 93L Should and I want to emphasize Should stay out into the Atlantic away from the East Coast. The models at least for the time being support this idea.

I-94L

Image credit Tomer Burg

94L is potentially the more troublesome of the two. Is currently approaching the northern islands in the Caribbean. The disturbance is dealing with moderate wind shear at the moment. But the wind shear should lessen quite a bit by the time we get into Friday. There are a lot of intensification scenarios based on how the two features interact. Currently The two systems are around 750 miles apart.   The waters in the Caribbean are very warm So this should help 94L develop. Depending on which system develops the quickest will be a big factor. If 93L becomes a hurricane sooner than 94L It could push 94L further west and maybe keep it weaker. On the other hand It could even end up absorbing 94L into its own circulation. If there isn't much interaction between the two there is a chance that both of them could become hurricanes. This would mean 94L could approach the Bahamas and get into or near Florida and then possibly try to come up the Coast or continue across into the Gulf.

This is an extremely complicated scenario, currently there is no way to know for sure how things will unfold. So those in Bermuda as well as the Bahamas, Florida, The Gulf  and along the East Coast of the US into Atlantic Canada will have to keep an eye on these systems.

The next two names on the list are Humberto and Imelda.