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A shield of rain is lifting into central Indiana during the predawn hours and once it arrives, we can expect wet times to persist through the better part of our Tuesday.
This is all part of a surface low that will lift northeast out of the central Plains region (today) into the lower Great Lakes region (Thursday). In association with this low pressure system, a warm front will lift northeast across the region Wednesday. Eventually, a cold front will move from west to east and sweep the state Wednesday night and early Thursday.
As this all transpires, a steady “all day” soaker can be expected across the region today.
Heaviest rain will be confined to western and northwestern parts of the state where amounts of 2″+ can be expected by 7a Wednesday. For immediate central and eastern Indiana, amounts of 0.50″ to 1.25″ can be expected by Wednesday morning.
Precipitation will turn more “showery” in nature by Wednesday morning, but by this timeframe, all eyes will be turning to the potential of thunder Wednesday afternoon as just enough instability and cold air aloft combine. From the city, itself, and points north and east, the threat of a few stronger cells are present Wednesday afternoon (after lunchtime). With the ingredients in place, a few of these storms could produce hail as they race off to the northeast.
We’ll turn MUCH cooler Thursday and Friday with a few “nuisance” variety showers around, but compared to what we see today and Wednesday, these won’t be a big deal (just annoying ;-)).
The colder times continue into the weekend and early portions of the next week and with a fast northwesterly flow aloft, a couple of disturbances will likely deliver the potential of mixed rain/ snow showers Saturday and again Monday.
We still expect a hard freeze (25° to 30°) early next week for a good chunk of the region.
Permanent link to this article: https://indywx.com/2022/03/22/persistent-rain-gives-way-to-some-hailers-wednesday-pm-colder-shift-with-wintry-precipitation-this-weekend-into-early-next-week/
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Permanent link to this article: https://indywx.com/2022/03/21/video-stunning-open-to-the-work-week-before-unsettled-weather-returns-snow-mixes-in-by-the-weekend/
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Permanent link to this article: https://indywx.com/2022/03/20/video-gorgeous-first-official-day-of-spring-unsettled-midweek-and-much-colder-next-weekend/
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Permanent link to this article: https://indywx.com/2022/03/18/video-keeping-an-eye-on-severe-potential-tonight-looking-ahead-to-an-active-close-to-the-month/
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While relative warmth will dominate headlines in the short-term, there’s plenty of reason not to buy into the idea that we’re finished with the chilly late winter temperatures just yet.
First, let’s start with the MJO. We’re in Phase 2 now, but what is most intriguing is the duration spent in Phase 3 (favors a pressing trough east and south similar to what image 2 shows below).
Should the MJO continue to move forward with similar amplitude then milder conditions would prevail as we get set to wrap up the month.
By that point, however, we’ll have to pay particularly close attention to the EPO and NAO phases. There are growing signals that both teleconnections will favor a return of colder than normal conditions prior to closing out the month. Couple that with the MJO movement and confidence continues to increase that we aren’t quite finished with the chill just yet. The question then becomes what takes place in April? We’ll lean into that with more detail during tomorrow’s update.
It’s important to enjoy the relatively quiet times this week as all indications point towards an active stretch before wrapping up the month. Of course we’ll have to contend with the late week system that will move through Friday (still looks like a 0.50” producer for most) but there are likely far more significant storm systems that loom the following week.
This is all part of what continues to look like a setback to cooler than normal conditions by late month. The duration of such will ultimately be up to the EPO, NAO, and MJO as we rumble into April. Before we get to that point, plan on more significant and moisture-laden storm systems impacting the region (first of which likely arrives Tuesday into Thursday of next week).
The wetter pattern is a byproduct of the “fight” from short and medium range warmth and longer term cooler anomalies returning prior to wrapping up the month.