Category: WPO

Long Range Update: Spring, Is That You?

Updated 02.25.22 @ 5a

As another wintry event comes to an end, most Hoosiers are ready for spring. As we look ahead at the upcoming couple of weeks, there are signs that at least a “taste” of spring awaits. But, as is typically the case, there are contradicting signals.

The consensus from our big player teleconnections would suggest a warm-up (compared to normal) in the 5-10 day period, but note that the trends are favorable for cooler than normal temperatures thereafter.

Ensemble guidance shows the transition over the upcoming couple weeks.

The Madden Julian Oscillation (MJO) argues that eastern warmth should come back with a vengeance towards mid-March after the potential of a brief cooler setback. We note guidance is in better alignment taking things into Phase 5 and that should result in an expanding eastern ridge between the 10th and 15th.

The JMA Week 2 500mb pattern looks pretty good to me based on the MJO activity. Meanwhile, unseasonably cold air is likely to dump into the West and we’ll have ti monitor thing the pattern drivers closely once passed mid-month for the possibility of colder air to ooze east.

The transitional theme to the overall pattern should promote wetter than normal conditions over the upcoming 14-16 days as a whole.

Permanent link to this article: https://indywx.com/long-range-update-spring-is-that-you/

Long Range Update: Pattern Evolution Through February…

Updated 01.28.22 @ 7:32a

You must be logged in to view this content. Click Here to become a member of IndyWX.com for full access.  Already a member of IndyWx.com All-Access?  Log-in here.

Permanent link to this article: https://indywx.com/long-range-update-pattern-evolution-through-february/

VIDEO: Light Snow Ends This Morning; Turning Bitterly Cold For Midweek…

Updated 01.24.22 @ 7:37a

You must be logged in to view this content. Click Here to become a member of IndyWX.com for full access.  Already a member of IndyWx.com All-Access?  Log-in here.

Permanent link to this article: https://indywx.com/video-light-snow-ends-this-morning-turning-bitterly-cold-for-midweek/

VIDEO: Significant Weekend Questions; Bullish On A Very Cold Close To January…

Updated 01.12.22 @ 7:23a

You must be logged in to view this content. Click Here to become a member of IndyWX.com for full access.  Already a member of IndyWx.com All-Access?  Log-in here.

Permanent link to this article: https://indywx.com/video-significant-weekend-questions-bullish-on-a-very-cold-close-to-january/

The Long Awaited Shift To More Winter-Like Conditions Begins…

Updated 01.01.22 @ 8:06a

From our family to yours, here’s wishing you a happy, healthy, and prosperous 2022!

As we embark on a new year, a new weather pattern will take hold. Consider the drastic difference of going from a regime that’s been much more October or November-like (December ‘21 temperatures ran a stunning 8.8° above average on the month) to one that will feature a series of reinforcing blasts of cold air- at what’s traditionally the coldest time of the year.

Temperatures ran well above normal in December from the Plains into the Ohio Valley, Great Lakes, and East.
A flip in the overall regime will drive cold over the upcoming couple weeks into the very place December was warm.

The reasons behind the shift in the pattern start with the MJO moving into Phase 8.

Can we amplify things into Phase 1 towards mid month? The American modeling suggests that’s on the playing field. Meanwhile, the Euro wants to take things towards the neutral phase. If we can swing into Phase 1, the ante would be upped for “locking” the cold in for the 2nd half of the month.


As it is, the majority of teleconnections are being “forced” (byproduct, in my opinion, of the MJO) into more favorable phases for cold. Remember, only a couple days ago this wasn’t being shown, but as the data is understanding the driving force (MJO movement), the EPO is joining the PNA and WPO colder camp. I would expect the AO trend to follow suit in the week ahead.

More on all of this in the AM, including the opportunities for snow and wintry precipitation (more than the novelty level stuff we’ll deal with early Sunday AM) in the weeks ahead…

Permanent link to this article: https://indywx.com/the-long-awaited-shift-to-more-winter-like-conditions-begins/