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Remnants of Nadine (14L)


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Looks like it wont make it for longest lasting ever...only Canadian and NOGAPS support the SW track, which is like a kiss of death to that scenario.

HWRF, which has been a pretty good model this year, supports something a little different. It takes Nadine ESEwrd, but very slowly. If it can do that, it could retain TS status a while longer.

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The interaction between Nadine & the low it'll eventually merge with should provide an excellent example of the Fujiwhara effect. The latest runs of the EURO actually have Nadine winning the battle, although she does end up extra-tropical. If you check out the maps, you can see how the strong circulation of Nadine basically slingshots around the weaker ET low, eventually becoming the dominant LP.

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Nadine up to 90 mph and 979 mb ...WOW!

000

WTNT34 KNHC 301441

TCPAT4

BULLETIN

HURRICANE NADINE ADVISORY NUMBER 72

NWS NATIONAL HURRICANE CENTER MIAMI FL AL142012

1100 AM AST SUN SEP 30 2012

...LONG-LASTING NADINE EXPECTED TO SLOW DOWN ONCE AGAIN...

SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION

-----------------------------------------------

LOCATION...37.1N 38.6W

ABOUT 640 MI...1025 KM W OF THE AZORES

MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H

PRESENT MOVEMENT...NW OR 325 DEGREES AT 9 MPH...15 KM/H

MINIMUM CENTRAL PRESSURE...979 MB...28.91 INCHES

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lol...

BULLETIN

HURRICANE NADINE ADVISORY NUMBER 73

NWS NATIONAL HURRICANE CENTER MIAMI FL AL142012

500 PM AST SUN SEP 30 2012

...NADINE PERFORMING LOOP-THE-LOOPS OVER THE NORTHEASTERN

ATLANTIC...

SUMMARY OF 500 PM AST...2100 UTC...INFORMATION

----------------------------------------------

LOCATION...37.2N 39.2W

ABOUT 670 MI...1080 KM W OF THE AZORES

MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H

PRESENT MOVEMENT...WNW OR 290 DEGREES AT 7 MPH...11 KM/H

MINIMUM CENTRAL PRESSURE...978 MB...28.88 INCHES

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lol...

BULLETIN

HURRICANE NADINE ADVISORY NUMBER 73

NWS NATIONAL HURRICANE CENTER MIAMI FL AL142012

500 PM AST SUN SEP 30 2012

...NADINE PERFORMING LOOP-THE-LOOPS OVER THE NORTHEASTERN

ATLANTIC...

SUMMARY OF 500 PM AST...2100 UTC...INFORMATION

----------------------------------------------

LOCATION...37.2N 39.2W

ABOUT 670 MI...1080 KM W OF THE AZORES

MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H

PRESENT MOVEMENT...WNW OR 290 DEGREES AT 7 MPH...11 KM/H

MINIMUM CENTRAL PRESSURE...978 MB...28.88 INCHES

This belongs in Randy's file of lulz.

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06z GFS is hilarious. Slings Nadine around the strong XT low, but doesn't absorb it (it absorbs 96L) then leaves the associated energy of Nadine behind just SW of the Azores and it appears that by day 15 its trapped underneath a ridge around 35N 54W heading W.

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06z GFS is hilarious. Slings Nadine around the strong XT low, but doesn't absorb it (it absorbs 96L) then leaves the associated energy of Nadine behind just SW of the Azores and it appears that by day 15 its trapped underneath a ridge around 35N 54W heading W.

Oh No. Would Nadine be classified as post-tropical or something, and then flare up again, based on that scenario?

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Oh No. Would Nadine be classified as post-tropical or something, and then flare up again, based on that scenario?

Post tropical for sure, but it's very compact and distinct, with little or no frontal features, sub 18C SSTs, peaks at around 50N and is partially shielded from shear until it's on the western half of the XT low it starts to weaken markedly, but it's still identifiable by day 6.

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Post tropical for sure, but it's very compact and distinct, with little or no frontal features, sub 18C SSTs, peaks at around 50N and is partially shielded from shear until it's on the western half of the XT low it starts to weaken markedly, but it's still identifiable by day 6.

Of course, it's post tropical by then, but what I'm saying is, if it really gets all the way back down to 35/54, like the GFS says, could it regenerate into a T.S.?

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Of course, it's post tropical by then, but what I'm saying is, if it really gets all the way back down to 35/54, like the GFS says, could it regenerate into a T.S.?

It could, but verbatim is under a cyclonic upper level environment the whole time after returning, so it's probably not fully tropical by then.

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06z GFS is hilarious. Slings Nadine around the strong XT low, but doesn't absorb it (it absorbs 96L) then leaves the associated energy of Nadine behind just SW of the Azores and it appears that by day 15 its trapped underneath a ridge around 35N 54W heading W.

Post tropical for sure, but it's very compact and distinct, with little or no frontal features, sub 18C SSTs, peaks at around 50N and is partially shielded from shear until it's on the western half of the XT low it starts to weaken markedly, but it's still identifiable by day 6.

GFS 06z @ 84 Hours

18zrc6.png

GFS 06z @ 132 hours.

2a0mauc.png

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Second image is @132hours, but otherwise they are labeled correctly.

Ooops... yea fixed. The shear is too strong on the 06z GFS for regeneration, but that's mainly because Nadine never gets perfectly under the mid-latitude trough that can shelter it from the stronger north-westerly mid-latitude flow. This is obviously a low probability event, since Nadine has to keep its distance from the mid-latitude trough to avoid absorption, while not get too far away that its not able to re-align with the trough once it swings back southward. Still though, there is some potential, and its telling that the GFS is growing stronger with Nadine in the + 84 hour time frame.

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Ooops... yea fixed. The shear is too strong on the 06z GFS for regeneration, but that's mainly because Nadine never gets perfectly under the mid-latitude trough that can shelter it from the stronger north-westerly mid-latitude flow. This is obviously a low probability event, since Nadine has to keep its distance from the mid-latitude trough to avoid absorption, while not get too far away that its not able to re-align with the trough once it swings back southward. Still though, there is some potential, and its telling that the GFS is growing stronger with Nadine in the + 84 hour time frame.

Could at least be an outlooked tropical wave, and if it did develop again at some point, would re-acquire the name Nadine, since it is the same system.

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