The upper level pattern this week will feature troughiness in the central portion of the country while a significant high pressure ridge continues to bake the Northwest with unseasonably hot, record-breaking temperatures.
Record heat will continue to bake the Northwest while unseasonably cool temperatures will be welcomed into the Front Range, southern Plains, and along the Gulf Coast.
We forecast widespread rainfall amounts between 1.5″ and 2.5″ across central IN in the upcoming 7-day period, but there will be locally heavier totals.
Well above normal precipitation can be expected ahead through the period from the southern Plains into the Great Lakes, TN Valley, and Mid-Atlantic.
While ingredients aren’t in place for a widespread severe weather event, one or two cells could pulse to severe levels later this afternoon across the northern half of IN, including an isolated tornado, given the parameters.
Forecast Period: 06.27.21 through 07.04.21
A frontal boundary will remain draped across the general area through the middle part of this week. While subtle differences will remain regarding greatest concentration of shower and thunderstorm coverage each day, it’s a safe bet most of the region will see a passing shower or storm at some point each day this week. We’ll keep an eye on radar trends this afternoon for the possibility of a local severe weather warning (threat is primarily going to be centered on western and northern parts of the state). Eventually the front will get shoved south and we’ll welcome in drier, cooler air as we get ready to kickoff the long Independence Day weekend. In fact, overnight lows will likely fall into the lower 50s for some by the weekend with highs only in the low-mid 70s. Rain chances will persist Friday and Saturday before we dry things out in earnest for the holiday, itself.
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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.
