MJO

[cycloneye]

MJO Graphic



Ok folks this thread and I am sure many ten pages threads about this theme will be dedicated to discuss all about this important MJO factor that plays a roll during hurricane seasons.We will see as the weeks and months go by during this 2006 hurricane season how the MJO (Madden Julian Occillation) influences the number of named systems that will form.

[Aquawind]

That graphic looks like it's wrong..lol I mean how relevent can it be if it happens to show up directly over the Chanchu and yet it's completely dry phase around it.. Looks like Chanchu has made it's own MOJO..

[cycloneye]

That graphic looks like it's wrong..lol I mean how relevent can it be if it happens to show up directly over the Chanchu and yet it's completely dry phase around it.. Looks like Chanchu has made it's own MOJO..

Yeah,that's kind of interesting.

[Jim Cantore]

Chanchu IS the map lol

[Aquawind]

http://www.cpc.ncep.noaa.gov/products/p ... update.pdf

[milankovitch]

http://www.cpc.ncep.noaa.gov/products/p ... ummary.pdf

MJO Summary

http://www.cpc.ncep.noaa.gov/products/p ... update.pdf

Weekly MJO disco

As for the image above the green lines indicate upper level divergence at 200mb and the IR. You would expect upper level divergence with a large tropical cyclone like Chanchu that would eclipse any MJO signature. The MJO is not the be all end all you can still get tropical cyclones in the dry phase of the MJO. With suppresed convection they should on average be weakened by the dry phase.

[Aquawind]

With suppresed convection they should on average be weakened by the dry phase.

Should Could Would.. It has had a inconsistent impact if any at times alrighty.. Clearly Chanchu is overriding the MJO dry phase signature.

[Patrick99]

If I remember correctly, during the past few seasons, we've seen several hurricanes traversing the Atlantic right in the middle of a MJO dry phase.

[wxmann_91]

MJO is more important early in the season when convection determines where and how many storms form. During the peak and later, it is less important, and the wet phase can sometimes be unfavorable as I noticed last year. Perhaps, as milankovich alluded to, the maps also show increased divergence, which favors convection, but also show signs of shear. (In this case, it is shear caused by Chanchu, not affecting it.)

[benny]

The MJO has little to do with the strength of a cyclone... it is more implicated in genesis work rather than how strong tropical cyclones get. A fully mature cyclone could care less about the MJO...

[benny]

If I remember correctly, during the past few seasons, we've seen several hurricanes traversing the Atlantic right in the middle of a MJO dry phase.

Yes we sure have. The MJO has the greatest relevance in the WestPac, then the EastPac, then the Atlantic. A lot of the time unless it is a strong MJO there is little difference in the Atlantic in terms of genesis. One thing to take note of is that basically the entire western hemisphere is in an active phase of divergence while the eastern hemisphere is very slow especially in the westpac. the active phase should enter the indian ocean (or is doing now) very soon.

[JonathanBelles]

whats an MJO?

[CHRISTY]

whats an MJO?

Here's a link!

http://www.apsru.gov.au/mjo/

[Hybridstorm_November2001]

"The Madden Julian oscillation is associated with westerly wind bursts and important surface flux. perturbations."(eg Weller and Anderson 1996).

[JonathanBelles]

a 40 day wave of?

[cycloneye]

whats an MJO?

MJO Explanation



Above is more explanation about what is the Madden Julian Occillation.

[cycloneye]

MJO Update

Above is an update about how the MJO is doing right now.

[x-y-no]

MJO Update

Above is an update about how the MJO is doing right now.

Well, that's somewhat supportive of our EPAC invest.

[terstorm1012]

slowly oscillating westward I see....very neat read thanks.

[wxwatcher91]

current MJO


Atlantic is in the wet phase.

current SAL