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Permanent link to this article: https://indywx.com/2020/02/02/video-pleasant-open-to-the-week-takes-on-a-more-wintry-2nd-half/
Feb 01
February 2020 Outlook: Watching The Battle Play Out…
Before we dig into the reasoning behind our February forecast, here’s what a few of the longer range models are suggesting the month will provide:
JMA
CFSv2
European Weeklies
February features “average” temperatures rising from a high of 37° on the 1st to 45° on the 29th. Average lows rise from 21° to 28° by the end of the month. IND averages 2.32″ of rainfall and 6.5″ of snow during the month.
As we look at February 2020, we have an interesting battle on our hands. Latest EPO trends are negative and that is a cold signal, potentially significantly so if the current trends continue. That said, it’s also important to note that many times throughout January, medium to long range negative EPO trends didn’t materialize, and, accordingly, warmth dominated.
To make things more complicated, the latest MJO plots are bullish on warmth persisting, overall, for the the better part of the month. Note the trends to take things back into Phases 4-5. This would promote the tendency towards more of a persistent eastern ridge (similar to what the European and CFSv2 show above).
While our forecast will show a significantly warmer than average month, we also believe snowfall will run near average. The reason has to do with a battle ground that we anticipate sets up across the Ohio Valley throughout the majority of the month. At times, even marginally cold air will create challenges. Case in point will be the middle and latter part of this upcoming week. This will likely set the tone for the month ahead: warmer than average with well above average precipitation/ near normal snowfall. The other concern has to do with the threat of sleet/ freezing rain events. Late winter and early spring can prove to be troublesome with the kind of ‘mean’ pattern that lies ahead as shallow cold air at the surface undercuts. This will be something to keep close tabs on moving forward.
IndyWx.com February Outlook…
Permanent link to this article: https://indywx.com/2020/02/01/february-2020-outlook-watching-the-battle-play-out/
Feb 01
VIDEO: Multiple Complex Storms To Deal With In The Week Ahead…
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Permanent link to this article: https://indywx.com/2020/02/01/video-multiple-complex-storms-to-deal-with-in-the-week-ahead/
Jan 31
Time To Beat The Drum A Little Louder On Next Week?
After a surge of warmth engulfs the region during the early part of the week, a cold front will sag south into the central Ohio Valley Tuesday night into Wednesday.
This front will result in an expanding shield of rain Monday night into Tuesday across all of central Indiana.
As we progress through Tuesday evening, the frontal boundary will likely sag south, allowing colder air to filter in (at least at the lowest levels of the atmosphere) across north-central parts of the Ohio Valley. As another slug of moisture moves northeast along the frontal boundary, precipitation is expected to once again become widespread Tuesday night into Wednesday. With the colder air oozing in, a mixture of sleet and freezing rain is a possibility across northern IL, IN, and OH. The precise placement of the front will determine whether or not more of central Indiana can get in on the “excitement” of this icy mixture during the aforementioned time period.
It’ll be wise to pay attention to forecast details during the weekend for the Tuesday and Wednesday time period- especially if you have travel plans north.
As this takes place, the upper ridge will get “beaten back” into the 2nd half of the work week. It’s important to note, however, that there will likely still be enough resistance from the upper level ridge that the cold front will get hung up along or just east of the spine of the Appalachians in the Thursday-Friday time frame.
As this transpires, yet another wave of energy will move up along the pressing boundary. Accordingly, precipitation should once again blossom in response of this wave of low pressure moving northeast. While the European (shown below) wants to keep things east of the immediate region, it’s wise not to write this system off from this distance. Not only does other data show the threat locally, but it’s all too often where storm systems “correct” further west as time draws closer to said event…
While this week has been relatively boring in the weather department, things will change in significant fashion next week. Whether or not those changes can deliver “wintry goods” is TBD…
Stay tuned.
Permanent link to this article: https://indywx.com/2020/01/31/time-to-beat-the-drum-a-little-louder-on-next-week/
Jan 31
January Review; Looking Ahead To A Busy Week In Front Of Us…
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Permanent link to this article: https://indywx.com/2020/01/31/january-review-looking-ahead-to-a-busy-week-in-front-of-us/
Jan 30
VIDEO: More Active Times On The Horizon…
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Permanent link to this article: https://indywx.com/2020/01/30/video-more-active-times-on-the-horizon/
Jan 29
Things Turn More Active Early Next Week…
The short-term weather pattern will remain largely uneventful here across central Indiana. This morning, widespread precipitation is falling to our southwest, including accumulating snow across MO. This system will weaken significantly as it pushes east.
Some upper level energy is still capable of developing some light snow across central Indiana tonight into Thursday morning, but this won’t be a big deal and some neighborhoods won’t see any snow at all.
An additional upper level disturbance will track southeast, skirting far northeastern parts of the area, and help generate a mixed rain or snow shower Saturday (again, not expected to be a big deal, locally).
Behind this system, a significant warm up will engulf the Ohio Valley, including a couple of days with highs between 50° and 55° early next week.
These spring-like temperatures will be in advance of a pressing cold front that will arrive on the scene during the middle part of the work week. As we’d imagine from this distance, modeling is handling the timing and specifics of the frontal system differently (image 1- GFS is more progressive and colder while image 2-the European is much slower/ warmer). We’ll take the next couple of days to sort through the details and have a higher level of confidence going into the weekend.
We’ll also have our February Outlook posted here tomorrow as part of Thursday’s long range video update.
Permanent link to this article: https://indywx.com/2020/01/29/things-turn-more-active-early-next-week/
Jan 28
VIDEO: Light Snow Chances In The Short-Term; Weekend Discussion, And Looking Ahead To A Strong Cold Front Next Week…
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Permanent link to this article: https://indywx.com/2020/01/28/video-light-snow-chances-in-the-short-term-weekend-discussion-and-looking-ahead-to-a-strong-cold-front-next-week/
Jan 27
Week-Ahead Outlook And Early February Thoughts…
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Permanent link to this article: https://indywx.com/2020/01/27/week-ahead-outlook-and-early-february-thoughts/
Jan 26
VIDEO: Reasons To Buy Into The Colder Change Early February…
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Permanent link to this article: https://indywx.com/2020/01/26/video-reasons-to-buy-into-the-colder-change-early-february/