Category: Rain

Long Range Outlook: Pattern Drivers Over The Next Few Weeks…

We’ve opened the month of January on a very warm note, compared to normal. Through the first (6) days of the month, temperatures are running 6.3° above average.

Well above average temperatures have dominated the northern tier into the eastern 1/3 of the country to open the month.

Looking ahead, the basis of the forecast over the next 3-4 weeks will be built on favorable teleconnection phases (for cold) with the AO, NAO, and PNA, while the predominantly positive EPO keeps any sort of sustained/ significant cold hard to come by. This is a pattern that can turn quite active (and we think it will), but one that still doesn’t appear as if it’ll grow overly cold- compared to normal.

We continue to eye the MJO propagation. The latest European models keep things in the null phase, but the American products seemingly want to get things more amplified. For now we’re not biting, but if things did sneak into Phases 3-4 by late month, warmer times would follow.

Week 1

JMA Week 1- Upper air pattern
JMA Week 1- Temperature anomalies
JMA Week 1- Precipitation anomalies
European Ensemble Week 1- Upper air pattern
European Ensemble Week 1- Temperature anomalies
European Ensemble Week 1- Precipitation anomalies
GFS Ensemble Week 1- Upper air pattern
GFS Ensemble Week 1- Temperature anomalies
GFS Ensemble Week 1- Precipitation anomalies

Week 2

JMA Week 2- Upper air pattern
JMA Week 2- Temperature anomalies
JMA Week 2- Precipitation anomalies
European Ensemble Week 2- Upper air pattern
European Ensemble Week 2- Temperature anomalies
European Ensemble Week 2- Precipitation anomalies
GFS Ensemble Week 2- Upper air pattern
GFS Ensemble Week 2- Temperature anomalies
GFS Ensemble Week 2- Precipitation anomalies

Through the first couple of weeks, modeling is in about as good of agreement as you could expect. After a period of quiet weather (immediate term), the pattern should turn much more active next week and the week thereafter, locally. While I don’t think cold overwhelms the pattern as much as the GFS ensemble is showing, I would go with more of a blend between that and the warmer JMA/ European.

Snow should also begin to get laid down across more of the Mid West and Ohio Valley. This is a stout look from the latest European and GFS ensemble means over the next 2 weeks (our daily videos and short-term products will handle this):

Thereafter, the weekly products take the pattern in two different directions and confidence is much lower late month and to open February. If the MJO remains a non-factor, colder solutions should carry the day. On the other hand, if the MJO does, indeed, roll into Phase 3/4, warmer times should follow in the Weeks 3-4 period. Stay tuned.

MJO Phases 3-4 in January
JMA Weeks 3-4- Upper air pattern (top); Temperature anomalies (bottom)

Permanent link to this article: https://indywx.com/long-range-outlook-pattern-drivers-over-the-next-few-weeks/

VIDEO: Enjoy The Quiet Weather While You Have It; Significant Changes Await…

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VIDEO: Suppression Is The Name Of The Game This Week, But Changes Loom Next Week…

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01.03.21 Weather Bulletin: Snow Ends; Watching Mid – Late Week Next…

Temperatures Trend Colder Late Week…Upper level energy will scoot out of the region as quickly as it arrived and will take the snow with it. Look for snow to diminish from west to east through mid morning. Heaviest bands of the white stuff set up along and north of the I-70 corridor overnight. While the system tracked a tick further north than originally expected, northern portions of our 2”-4” zone should verify once all is said and done (please keep those reports coming). Southern portions (closer to the I-70 corridor) will bust on the low end. Improving weather conditions are dialed up through the 1st half of the new work week, including a return of the sun! (ENJOY)!

Our next system of note will arrive Thursday into early Friday. Operational guidance continues to struggle with handling of features beyond 3 days out (thanks in part to the maturing high latitude blocking pattern) and this feature will require our attention for the chance of a wintry mix of rain/ snow. Stay tuned as we fine tune!

Drier, colder weather is dialed up to head into next weekend. Enjoy the down time while you have it. A fairly active period of weather seems to loom on the horizon for mid and late month…

Thank you again for your patience with posts (along with video troubles) the past few days. We’ll be settled back into the home office Monday and will resume “regularly scheduled” programming at that time.

Permanent link to this article: https://indywx.com/01-03-21-weather-bulletin-snow-ends-watching-mid-late-week-next/

VIDEO: Snowy Scene Come Sunday Morning; Blocky Pattern Forces Medium-Longer Range Challenges…

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Permanent link to this article: https://indywx.com/video-snowy-scene-come-sunday-morning-blocky-pattern-forces-medium-longer-range-challenges/