Category: Harvest21

VIDEO: Conditions Improve Through The Weekend; Tracking 2 Storm Systems Next Week…

Updated 10.07.21 @ 11:15a

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VIDEO: Unsettled Times Give Way To Summer-Like Warmth This Weekend; Taste Of Winter Settles Into The West…

Updated 10.06.21 @ 1:54p

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Wednesday Morning Rambles: Not Finished With Those 80s…

Updated 10.06.21 @ 9a I. Unsettled conditions will continue through the end of the work week. A “cut off” low pressure system will begin to lift north today and pull…

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VIDEO: Widespread Rain Returns Thursday; Summer-Like Weekend Ahead…

Updated 10.05.21 @ 6:55a

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Permanent link to this article: https://indywx.com/2021/10/05/video-widespread-rain-returns-thursday-summer-like-weekend-ahead/

VIDEO: Timing Out More When Rain Becomes More Widespread; Warm Pattern Continues…

Updated 10.04.21 @ 7:20a

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Weekly #AGwx And #Harvest21 Outlook…

Updated 10.03.21 @ 11a

While a trough settles into the West, the eastern portion of the country will have to deal with a pesky cut off low for a good chunk of the forecast period.
Well above normal temperatures will dominate the northern tier, Plains, and East through the period while cooler conditions settle into the West.
A wet pattern will be associated with the cut off low across the Deep South and Ohio Valley. Wetter conditions will also develop across the West.
We forecast central Indiana to pick up 0.50″ to 1″ of rain in the 7-day forecast period with localized heavier totals.

Forecast Period: 10.03.21 through 10.10.21

A stubborn cut off low pressure system will keep things unsettled around these parts for a good chunk of the forecast period. It certainly won’t rain the entire period, but compared to the past couple of weeks, most will notice a drastic difference in the wetter conditions. We think greatest coverage of rain will come today and midweek. By this time next week, most central Indiana rain gauges can expect to tack on an additional 0.50″ to 1″ of rain with locally heavier totals.

The other big story by late in the week will be an expanding ridge of high pressure. This will keep our region well above normal from a temperature perspective, including the likelihood of multiple days of 80°+ in the 6-10 day stretch. This will be driven by a strongly negative PNA and positive EPO and is supported by October La Ninas from the past (analogs). The persistent warmer than normal regime shouldn’t really go anywhere in the longer range. It’s not until we get to the 2nd half of November (and beyond) when we believe a more profound shift to more persistent cold lurks.

Permanent link to this article: https://indywx.com/2021/10/03/weekly-agwx-and-harvest21-outlook-5/

VIDEO: Wet Pattern Emerges Into The Week Ahead…

Updated 10.02.21 @ 7:47a

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VIDEO: Cut Off Low Keeps Things Unsettled At Times This Weekend Into Next Week…

Updated 10.01.21 @ 8a

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October Outlook: Bonus Period Of Warmth…

Updated 09.30.21 @ 7:18a

Before we dig into our thoughts around what lies ahead during the 2nd month of meteorological fall, let’s take a look at what some of the longer range computer models show:

JMA- ‘Mean’ ridge parked over southeast Canada and into the northern Great Lakes with an associated warmer than normal pattern pegged from the northern Plains and points east- most notably along the northern tier. (Slightly warmer than normal here in the Ohio Valley).

European Weeklies- almost identical to the JMA above. A persistent ridge is shown anchored across eastern Canada into the Great Lakes region. Well above normal warmth is painted across the upper Midwest and western Great Lakes while slightly above normal temperatures take up residence from the Plains and points east.

CFSv2- While still showing the significant upper ridge in the same place as it’s JMA and Euro counterparts, the CFSv2 is more bullish on a western trough and associated cooler pattern for that part of the country. Like the other guidance above, the model paints the warm, to much warmer than normal, look from the Plains and points east.

The warm look being shown on the models above should come as no surprise. There’s a tendency for such during La Nina Octobers, along with that persistent upper ridge placement. That’s not to say there won’t be brief intrusions of cooler air at times, but these will likely be fewer than normal by October standards, and “brief” is the key word.

In the short-term, the 2 primary teleconnections we lean on this time of year (PNA and EPO) don’t suggest there’s any reason to go against the October Nina analogs. Perhaps in the longer range (towards late October and into November), there’s a better window to change the pattern up, but my hunch is the more profound pattern shift doesn’t hit and hold until the 2nd half of November and December.

The MJO in large part is expected to remain in the “null” phase through the bulk of the month, meaning we’ll lean heavier on the PNA and EPO.

With all of that said, we’ll follow suit with a warmer than normal October (bonus warmth) for most of the country, including here in the Ohio Valley. Precipitation is expected to be near average for October (3.22″ is the average for Indianapolis).

Permanent link to this article: https://indywx.com/2021/09/30/october-outlook-bonus-period-of-warmth/

VIDEO: Longer Range Pattern Drivers; Rain Returns This Weekend…

Updated 09.29.21 @ 7:29a

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