ATL: HUMBERTO - Post-Tropical - Discussion

[galaxy401]

Dang, looks like Humberto is still easily a cat 3 based on Recon and Bermuda observations despite the degrading appearance. Wonder if it's even stronger than we thought.

[supercane4867]

 https://twitter.com/pppapin/status/1174470651207225344




 https://twitter.com/pppapin/status/1174475046644932609




These observations could be the highest since Fabian

[supercane4867]

Some damaging fireworks here

 https://twitter.com/bdaglenn/status/1174458607393542144

[EquusStorm]

Yeaaah that's approaching Fabian level of wind from what I assumed would be a sideswipe outside the eyewall. Might be the biggest hit this decade which is wild from the marginal structure it's got going on right now. It looked twice as imposing as a barely designated cat one but looks are deceiving in the northern part of the basin. I'm trying to think, I don't think Gonzalo or Nicole produced many gusts that high and I can't recall a stronger hit since 2003, so definitely a pretty big deal.

Then again... Juan returned under the guise of Dorian this year for Nova Scotia, so I guess it's fitting that Fabian returns too. 2003 all over again in this part of the Atlantic.

[supercane4867]

SFMR winds up to 105kt in the SW eyewall/band. It actually looks somewhat like a sting jet feature. Very interesting structure for a NE moving storm.

[Buck]

Yeaaah that's approaching Fabian level of wind from what I assumed would be a sideswipe outside the eyewall. Might be the biggest hit this decade which is wild from the marginal structure it's got going on right now. It looked twice as imposing as a barely designated cat one but looks are deceiving in the northern part of the basin. I'm trying to think, I don't think Gonzalo or Nicole produced many gusts that high and I can't recall a stronger hit since 2003, so definitely a pretty big deal.

Then again... Juan returned under the guise of Dorian this year for Nova Scotia, so I guess it's fitting that Fabian returns too. 2003 all over again in this part of the Atlantic.

Just had the exact same thought!

[CyclonicFury]

Non-suspect SFMR reading of 113 kt in the SE quad.

[TallyTracker]

I don’t recall off the top of my head seeing a hurricane this strong under going extratropical transition. I know it’s expected to weaken, but so far if anything the baroclinic energy coupled with the high water temps is still maintaining an intense storm.

[wx98]

FL is over 120 kt, SFMR is almost 115 kt
This may be Cat 4 or on the cusp

[Highteeld]

Big drop

[1900hurricane]

Dropsonde and 700 mb wind both support 110 kt and SFMR supports up to 115 kt.

Huh. Who'd have thought.

[Hypercane_Kyle]

Dropsonde suggests Humberto has become a Cat 4. 114 knots at the surface.

[wx98]

Could this be a combination of baroclinic forcing, which is causing some strengthening, and increasing forward speed that is making the southern eyewall so strong? The RF quadrant is the SE side, which is moving with the forward motion and not against it.

[supercane4867]

I think Humberto should be upgraded to CAT4 in TCR. Recon data conclusively supports it

[CrazyC83]

Other than perhaps Hurricane Hazel in 1954 (and there was no satellite to prove it), I can't think of any storm that was a cat 4 in the extratropical transition phase. I agree with at least 110 kt though.

[1900hurricane]

The VDM on the 113 kt pass fixed the center at 33.93ºN. There are very few category 4s in best track to have occurred at 33.9ºN or further north. The most recent was Diana in 1984.

[EquusStorm]

Yeah I don't recall a modern hurricane being boosted that much baroclinically either. Obviously being in the right rear of a jet max is helping it tremendously but usually that's in the form of slower weakening, not jumping almost a whole category when it's already a major; just don't see a storm this intense continue to intensify or even hold steady near the cat 4 threshold (and despite plausible evidence and even a pressure to support it I kinda doubt they'll make that jump til the postseason if at all) when beginning extratropical transition often. Might join Hazel and the Long Island Express in that rare category. Super fascinating, but extraordinarily bad news for Bermuda.

[Kazmit]

Lots of tree damage and multiple roofs were taken off. Definitely a worse storm than Nicole 2016. Very fast and intense.

[GrayLancer18]

Lots of tree damage and multiple roofs were taken off. Definitely a worse storm than Nicole 2016. Very fast and intense.

Hope there are no reports of injuries or loss of life.

[SconnieCane]

Lots of tree damage and multiple roofs were taken off. Definitely a worse storm than Nicole 2016. Very fast and intense.

I was just looking at Nicole on Wikipedia (Forgot about it among Fabian, Fay and Gonzalo) and came on here to ask the Bermudian posters who have been there for both how Humberto compared. It looks like the angle of approach was similar but a little to the south of Humberto, meaning that although the eye approached closer the territory was mostly on the left side of the storm, which may be why the impacts weren't as bad.