Category: Long Range Discussion

Finalized April Outlook…

Averages for April are as follows:

*High: 63.4

*Low: 42.7

*Rainfall: 3.81″

*Snowfall: 0.2″

By the time all is said and done, this is how we see April shaping up:

Modeling continues to show April opening cooler than normal and we agree that this will be the case, including a wetter than normal pattern, as well.

With that said, the persistent AK ridge begins to break down by the 2nd week of the month. This will lead to the early month chill being transient in nature and a significant flip to warmer than normal conditions during said timeframe, as well.

Note by the middle part of the month, a ridge is now forecast to be in the exact position the ‘mean’ trough position will locate itself for early month.

To no shock, it’s a vastly different temperature profile, as well. Now above normal warmth dominates. It’s easy to argue the model may not be warm ‘enough’ by this time over the OV and Northeast, with cooler anomalies across the SW.

The active pattern to open the month is expected to “settle down” for mid and late month as an upper level ridge dominates.

While the first week of April will likely run cooler and wetter than average, a rather significant flip in the pattern will result in drastically improved weather around these parts by mid and late April. By the time we get to month’s end, we think drier than normal conditions will rule across the northern Plains with warmer than average weather taking up shop across the Ohio Valley. A corridor of wetter than normal conditions is expected across the Intermountain West into the Lower MS River Valley.

Permanent link to this article: https://indywx.com/finalized-april-outlook/

All-Access Video: Wet Open To The Weekend On The Way; Changeable Pattern For The 1st Half Of April…

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/all-access-video-wet-open-to-the-weekend-on-the-way-changeable-pattern-for-the-1st-half-of-april/

Long Range Video Update: April Opens Stormy And Colder Than Normal…

It’s quiet now, but a very active and stormy pattern will get underway as we head into the weekend. This busy weather pattern will continue to rule the day into…

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-video-update-april-opens-stormy-and-colder-than-normal/

More On The Late March-Early April Pattern And Reviewing The NEW JMA Weeklies…

As we look ahead, a persistent western Canada/ Alaska ridge continues to show up on the medium to long range data. The downstream implications are for cooler than normal temperatures, overall, across the eastern and central portions of the country into early April.

Upper air pattern- Days 4-9
Surface temperature anomalies- Days 4-9
Upper air pattern- Days 9-14
Surface temperature anomalies- Days 9-14

Given the time of the year (and pattern), cool won’t rule the entire period. It’s just that the cold will “out do” the transient warmth in between storm systems over the next couple of weeks.

When we look at the teleconnections (combo of negative EPO and neutral to slightly positive PNA is ruling the day for now), they support the lingering chill into early-April.

However, as we turn the page from early-April to mid-April, the idea here is that an eastern ridge will begin to expand west with more “umph” and eventually lead to warmth overwhelming the pattern. We aren’t budging from the original idea of a warmer than normal April by month’s end. It sure appears as if the NEW JMA Weeklies are catching onto this idea.

Weeks 3-4 (mid April) forecast upper air pattern.

From a precipitation perspective, the majority of medium and long range model data does show a return of wetter times (relative to normal) as we move into April, including an active storm track. The beginning of this overall shift in the pattern back towards wetter than normal conditions will begin early next week.

We’ll recap our latest short-term thinking, including an update on the NEW European Weeklies that will arrive this evening later tonight in a video update.

In the meantime, make it a fantastic Thursday- and happy tip off to March Madness!

Permanent link to this article: https://indywx.com/more-on-the-late-march-early-april-pattern-and-reviewing-the-new-jma-weeklies/

All-Access Video: Showers Arrive Later Today; Still Expecting A Beautiful Weekend And Looking Ahead To More Active Times…

A weak system will spread showers across central Indiana later today. We take a look at timing and amounts, along with spending time going over the long range pattern into…

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/all-access-video-showers-arrive-later-today-still-expecting-a-beautiful-weekend-and-looking-ahead-to-more-active-times/