Jump to content
  • Member Statistics

    17,607
    Total Members
    7,904
    Most Online
    NH8550
    Newest Member
    NH8550
    Joined

December 2021


MJO812
 Share

Recommended Posts

2 hours ago, bluewave said:

The RMM chart forecasts are famous for rushing things. All you are seeing  know is them correcting to the slower VP charts. The VP charts still have MJO phase 7 on January 1st.


D20BFA7B-BF83-4ADF-8B4E-6503F872C467.thumb.png.24a9616b2a378d2c9f4aa699af943b24.png

69D016F7-7A75-44A9-9C76-933441BB4EA5.thumb.png.d1b428572cf0e75aa2299e4cc8ac7d0b.png

I know the phase 7 for January is a relatively warm outlook That’s if it stays in phase 7 for the extended period time

Link to comment
Share on other sites

1 hour ago, MJO812 said:

Screenshot_20211216-092343_Twitter.jpg

Screenshot_20211216-092351_Twitter.jpg

I would be somewhat cautious, though I think January 1-10 will be colder than normal. December 21-25 is now colder on the EPS, too.

The issue I raise is that Rai will likely have some impact on the pattern evolution. One cannot wholly dismiss it regardless of its skewing some of the MJO measures.

 

  • Like 2
Link to comment
Share on other sites

8 minutes ago, donsutherland1 said:

I would be somewhat cautious, though I think January 1-10 will be colder than normal. December 21-25 is now colder on the EPS, too.

The issue I raise is that Rai will likely have some impact on the pattern evolution. One cannot wholly dismiss it regardless of its skewing some of the MJO measures.

 

Is the typhoon just skewing the index or is it actually affecting the MJO itself (and, hence, the index is reflecting that)?

Link to comment
Share on other sites

1 hour ago, thunderbolt said:

I know the phase 7 for January is a relatively warm outlook That’s if it stays in phase 7 for the extended period time

We haven’t been following any of the traditional MJO composites this month due to the interference pattern and big +AAM spike. Raleighwx posted some great custom composites with +AAM. But I think that the sample size gets really small when we get several factors interacting with each other. The MJO 7 500 mb composites in January have more ridging near the West Coast. But none of the composites may be an exact match due to the interaction of different influences and the recent very strong -PNA and -PDO couplet.
 

4E7536B4-AD44-41A4-A20E-3CD490BDB617.thumb.png.834b58c62ab703a2111ddf58b0be5550.png
35FB1B68-4D9D-4FEE-A046-2BC5DE39D672.thumb.png.07b512cadf5853a2cf4e989087253a0e.png

FAF82441-5F96-460B-979A-2ED9F65B528A.thumb.png.c568705ae733c043ed10bbaf13887738.png

  • Like 2
Link to comment
Share on other sites

59 minutes ago, donsutherland1 said:

I would be somewhat cautious, though I think January 1-10 will be colder than normal. December 21-25 is now colder on the EPS, too.

The issue I raise is that Rai will likely have some impact on the pattern evolution. One cannot wholly dismiss it regardless of its skewing some of the MJO measures.

 

I would have to agree that the end of this month into early January is colder, assuming that the MJO wave progresses normally, into 7, 8, 1, which is a big “if” right now. The question then become post 1/10. Some models are showing IO convection flaring up by mid-January. If that’s really the case (another “if) then the pattern will start to mild up as we progress into mid-late January and February in the absence of some major SSWE. There are a lot of questions going forward and given the severely -PDO and -PMM, I would seriously doubt any extended +PNA run being shown on the models. We have been constantly defaulting back to a big -PNA/RNA since the beginning of September 

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...