The upper pattern this week will feature a dominant upper ridge across the northern tier, centered over the Great Lakes region. Meanwhile, a stubborn upper low will move slowly northeast out of the southern Plains early and mid week.
The immediate western seaboard will run below to well below normal this week, while the upper Plains into the Great Lakes run well above average.
Well above normal rainfall can be expected through the period across the Ohio Valley, TN Valley, and Mid Atlantic regions.
We forecast between 1.5″ and 2″ on a widespread basis across central IN in the upcoming 7-day period, but there will be locally heavier amounts with this setup.
Forecast Period: 06.06.21 through 06.13.21
Our weather pattern will be dominated by a stubborn upper low moving slowly northeast out of the southern Plains. Eventually, this upper low will get entangled in the westerlies and begin to lose influence on our weather towards the tail end of the week. Before that, we’ll notice a rather marked difference in the type of airmass this week compared to what we’ve seen of late. A deep tropical flow, straight out of the Gulf of Mexico, will bring moisture-rich air into the Ohio Valley, including dew points that will approach the oppressive level (65° to 70°). While daytime highs will be kept cooler with the clouds and rain around, overnight lows will be elevated with such a humid airmass in place. A daily dose of showers and thunderstorms can be expected in this pattern- most numerous during the afternoon and evening hours. Given the humidity, locally heavy rain is a good bet at times. While coverage of showers and storms should slowly begin to diminish towards Friday and Saturday, we’ll still keep mention of scattered storms in our forecast into next weekend.
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Unseasonably cool weather will dominate the south-central Plains and into the Ohio Valley and Southeast. Meanwhile, unseasonable warmth will prevail across the West.
A wet pattern can be expected along the eastern seaboard and south-central Plains. Drier than average conditions can be expected across the northern tier and central Gulf Coast.
We forecast between 1.25″ and 1.75″ of rain in the week ahead for central Indiana.
Forecast period: 05.30.21 through 06.06.21
Refreshing times will continue to dominate through the remainder of the holiday weekend. While dry and unseasonably cool air will grab the headlines in the short-term, changes will arrive by midweek as a storm system blows into the Ohio Valley. Shower and thunderstorm chances will be on the increase by Tuesday night and Wednesday and some of these storms may contain locally heavy rain. A broad southwesterly flow will keep things feeling more typical for this time of year for the 2nd half of the week, as well. More seasonable temperatures can be expected late week (lower 80s for daytime highs) along with an increase in humidity levels providing daily chances of afternoon/ evening “splash and dash” storm coverage.
Temperatures will run slightly above normal (for a change) across a good chunk of the country through the upcoming 7 days. Only exception to this will be across the South.
The Heartland will be in the cross hairs of a multi day heavy rain event this week. Meanwhile, from the central and Ohio Valley and points east we’re looking at a continued dry stretch.
Central Indiana can expect between 1” and 1.5” of rain in the week ahead on average.
This will be an active week for the Plains as a multi day severe weather episode compliments what will also be an evolving flood risk.
Forecast Period: 05.15.21 through 05.22.21
Change is ahead over the upcoming week towards a pattern more typical of what we’d come to expect this time of year. We’ll say goodbye to the cool, crisp air in the short term period and replace it with an increasingly warm and muggy feel of things. Scattered showers and thunderstorms will accompany this transition. While the chances of widespread heavy rain are diminishing, we will see scattered to numerous showers and storms during the early and middle part of the work week. These will be of the “splash and dash” variety and certainly won’t require any cancellation of outdoor plans. High pressure appears like it’ll nudge its way into the region Wednesday night, allowing us to enjoy another stretch of dry conditions as we close the work week and head into next weekend.
Temperatures will moderate from the unseasonably cold conditions as of late. We’ll make a run for 80° by Tuesday here in central IN.
Above normal rainfall is expected in the week ahead from the mid MS Valley and Gulf Coast into the Ohio Valley and Great Lakes.
We forecast most central IN rain gauges to receive between 1.75″ and 2.25″ in the week ahead.
A new spring storm will emerge out of the Plains Tuesday and likely ignite a round of severe weather throughout tornado alley.
Forecast Period: 04.24.21 through 05.01.21
A relatively weak storm system will lead to plenty of clouds today and a couple of light passing showers (better chance of steadier rain downstate). This system will blow by to our east tonight and allow a drier air mass to build into the region as we move through the 2nd half of the weekend, complete with a return of sunshine! Enjoy the sunny and much warmer open to the week as significant changes await by Wednesday. Before this, a strengthening southwesterly air flow will push high temperatures into the lower 80s Tuesday! Attention will then shift to a complex and multifaceted storm system that will deliver heavy rain and thunderstorms (potential present for a couple stronger storms midweek that we’ll continue to monitor) in rounds Wednesday through Friday. While it won’t rain the entire timeframe, periods of heavier rain can be expected. We’ll dry things back out heading into next weekend.
