Do cut off lows or nor'easters effect sea surface temps?

[krysof]

I think they do, but I'm not sure, there has been a nor'easter here a few days ago and water temps actually dropped by a degree or two in the waters.

[Air Force Met]

I think they do, but I'm not sure, there has been a nor'easter here a few days ago and water temps actually dropped by a degree or two in the waters.

Yes. Not only because they usher in polar (or arctic) air...even though it is modified this time of year...but because the winds associated with them cause waves to kick up...which mixes the cooler water beneath the sfc with the relatively warmer water nearer the sfc. You may also have some upwelling if the offshore fetch lasts for a while.

[HURAKAN]

Is possible because even hurricanes have a great effect in water temperatures, they always leave cool pools in their path.

[krysof]

Was that when hurricane fabian came first, then hurricane isabel followed an almost exact path for a while in 2003. What about Jean and Frances?

[HURAKAN]

Remember Lili and Isidore in 2002, first Isidore took a path over the northern Gulf of Mexico and then when Lili followed, it's winds went from 145 to 90 mph in a few hours because it went over a cool pool of water left by Isidore and Louisiana got really lucky!

[cyclonaut]

That must have been a seriously cold pool to have done that!

[AussieMark]

Actually dry air is what weakened Lili so rapidly

[Anonymous]

Remember Lili and Isidore in 2002, first Isidore took a path over the northern Gulf of Mexico and then when Lili followed, it's winds went from 145 to 90 mph in a few hours because it went over a cool pool of water left by Isidore and Louisiana got really lucky!

This is an image of Isidore and Lili's tracks overlayed. You can see, Lili first became a Category 4 while crossing over Isidore's track. Waters did not weaken Lili. It was dry air and shear.