Category: 10-day

Medium Range Notes: Cooler, More Active Times Dominate…

As part of some exciting and significant enhancements that we’re looking forward to announcing later this fall, we’re going to be including more content that’s typically only been going out to private clients.  Some of that content includes our ‘medium range notes’ that go out each evening, included in the sample below.

As we look at the medium range period, or the 6-10 day time frame, the pattern flip to a cooler and more active regime is clear.  Both the respective GFS and European ensemble members (below) see the significant changes that will be with us as we put a wrap on July and look ahead to welcoming August.  Note the upper ridge retrograding west.

Image source: Tropicaltidbits.com

Image source: Tropicaltidbits.com

Not only will this help drive a significantly cooler pattern, but a wetter one to boot.  We note data reflecting wetter than average times returning for the upper Mid West, Great Lakes, and Ohio Valley during the upcoming 6-10 day period.  It appears as if much-needed moisture will be returning to central Indiana.

Image source: Tropicaltidbits.com

Also note the dramatic flip to cooler times.

Image source: Tropicaltidbits.com

Storms Of Significance:

Of note during the period, we’re targeting a storm system that will likely deliver unsettled weather to central Indiana over the upcoming weekend, continuing into the Days 6-7 time period.  This is followed by another storm system that will deliver unsettled conditions Days 9-10, including reinforcing cooler than average temperatures.

As always, IndyWx.com features daily blog and video updates that include details around the short-term period.

Forecaster: BM

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VIDEO: Looking At The Longer Range…

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More Unsettled Weekend Ahead And Closing Out May…

An upper level low pressure system will track northeast today into tonight, and as it does, look for more numerous showers and embedded thunder to develop.  Some localized heavier downpours are a good bet this evening across central Indiana.

Otherwise, look for considerable cloudiness and highs topping out in the lower 70s today.

While we’ll have to contend with a few showers Saturday, overall, the day should be drier compared to today and what lies ahead Sunday.  Speaking of Sunday, we’re monitoring the potential of a couple of storms reaching strong to severe levels to close the weekend.  The Storm Prediction Center includes central portions of the state in a “marginal” risk of severe with their update Friday morning.  It wouldn’t surprise us if a portion of the marginal risk is upgraded to a “slight” risk in future updates.  We’ll fine tune storm timing over the next 24 hours.

As we look ahead to the end of May, there really aren’t any significant changes to the overall warmer than normal theme we’ve enjoyed so far this month.  Longer range guidance off of the European ensemble continues to support broad scale upper ridging across the Mid West and Ohio Valley and a corresponding warmer than average regime.  From a precipitation perspective, the next couple of weeks do look more active compared to the dry start to the month.  Case in point, the balance of the upcoming week will be dominated by a stalled frontal boundary.  While we’ll have to fine tune exactly where the front stalls, daily chances of showers and thunderstorms (scattered fashion) can be expected.

Permanent link to this article: https://indywx.com/more-unsettled-weekend-ahead-and-closing-out-may/

Still Warm, But Much More Active…

So far, May-to-date has run well above average in the temperature department (+8.5°) and below average from a precipitation perspective.  While we’ll continue to run much warmer than normal through the second half of the month, we’ll begin to make up for “lost time” in the rainfall department, and that starts this week.

Daily chances of showers and thunderstorms are included in your latest 7-day and, at times, storm complexes will likely reach strong to severe levels as disturbances ride the periphery of an upper level ridge off to our south.  It certainly won’t rain the entire time over the upcoming week and we’ll still enjoy more dry hours than wet and stormy.  That said, for a region running around 1.5″ below average, the more active times will be a welcome sight for many.  By next Sunday, we expect many area rain gauges to accumulate 1.5″ to 2.5″ of rain with locally heavier amounts.

Warmth will continue to dominate through the next couple of weeks.

For a change, above normal precipitation is expected over the upcoming week.

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Warmth Dominates; Timing Out Storm Chances Over The Upcoming 10-Day Period…

After a month-to-date temperature anomaly map that looks like this:

…and a year-to-date that looks like this:

…sustained warmth is music to the ears of many Hoosiers!  Thankfully, the balance of the upcoming (10) days will feature warmer than average conditions, as illustrated by the latest European ensemble data.

This will include multiple days with high temperatures rising into the 80s over the upcoming 10-day stretch (Tuesday and Wednesday and again next Monday through Wednesday).

As for storm chances, dry times will continue to dominate Tuesday with plentiful sunshine. Clouds will begin to increase Wednesday and we can’t rule out an afternoon shower, but most should still remain dry.  Thursday and Friday will offer up the best chances of getting wet, including embedded thunder.

As for rainfall totals, it still appears widespread amounts will check-in in the half inch to one inch range, but a few locally heavier amounts can be expected.

Models continue to dry us out in time for the weekend and all of those important Cinco de Mayo/ Derby plans.  An increasingly sunny sky will be with us along with highs in the middle 70s Saturday afternoon!  Can you say “perfection?”

Looking ahead, I’m not sold we won’t have to deal with showers Sunday as a disturbance moves nearby (low confidence forecast from this distance).  More widespread showers and thunderstorms will arrive on the scene late next week…

We also note the majority of longer range guidance trending warmer for May. We’ll have some updated thoughts on that later this week!

Permanent link to this article: https://indywx.com/warmth-dominates-timing-out-storm-chances-over-the-upcoming-10-day-period/