Category: Forecast Models

VIDEO: Weekly #AGwx And #Severe Weather Outlook…

Updated 03.17.24 @ 8:10a The theme for the bulk of the week ahead will be both cooler and drier. A few mornings will feature a hard freeze, including overnight lows…

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Permanent link to this article: https://indywx.com/2024/03/17/video-weekly-agwx-and-severe-weather-outlook/

Long Range Report: Cooler, Drier Week 1 Turns Wetter To Close March; Open April…

Updated 03.16.24 @ 7:55a

Indianapolis is running right at average month to date from a rainfall perspective (1.78”).

We’re transitioning to a much drier pattern in the week ahead as a cooler, Canadian airmass dominates (for a change).

Several hard freezes (mid-upper 20s) are on tap in the upcoming 7-10 day period: Monday/ Tuesday morning and again late next week/ next weekend.

Cooler? Yes, but I still don’t see anything overly cold on the horizon as we navigate the next couple of weeks.

What’s more notable is the shift in the precipitation pattern over the next few weeks. The dry Week 1 (now) transitions to a significantly wetter and more active look Week 2 (below).

The JMA also sees the wetter regime.

This is forecast to continue in the Weeks 3/4 timeframe.

Continues to back up the idea of an active (wet) and stormy (more in the way of severe weather) spring as a whole.

Down the road, an eventual move into a hot, dry (compared to normal) summer may loom. (Yet one that is very active from a tropical perspective, continuing into the fall). More on that in the coming weeks…

Permanent link to this article: https://indywx.com/2024/03/16/long-range-report-cooler-drier-week-1-turns-wetter-to-close-march-open-april/

VIDEO: Cooler Air Flows In; Impacts On Precipitation Over The Upcoming Couple Of Weeks…

Updated 03.15.24 @ 7:29a After a busy and noisy Thursday, we are thankfully able to calm things down in significant fashion today. A narrow (insignificant) band of showers may impact…

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Permanent link to this article: https://indywx.com/2024/03/15/video-cooler-air-flows-in-impacts-on-precipitation-over-the-upcoming-couple-of-weeks/

VIDEO: Timing Out 2 Rounds Of Strong-Severe Storms; Trending Cooler Into Next Week…

Updated 03.14.24 @ 7:37a We’re tracking 2 rounds of storms that’ll impact central IN today: around lunchtime and again for the evening commute. While both rounds of storms stand a…

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Permanent link to this article: https://indywx.com/2024/03/14/video-timing-out-2-rounds-of-strong-severe-storms-trending-cooler-into-next-week/

Wednesday Morning Rambles: Talking Storms And A Cooler Pattern To Close Out March…

Updated 03.13.24 @ 5:44a

Most of today will be dry and unseasonably mild. We’ll watch radar trends this evening to see if storms are able to ignite, at least in widely scattered fashion. If this does, indeed, take place it would most likely be after sunset.

A better chance of more widespread showers and thunderstorms awaits Thursday, likely in a couple of different waves between the afternoon and evening hours.

The Storm Prediction Center (SPC) highlights far western portions of the state in a Slight risk of severe weather (damaging straight line winds are the biggest concern) Thursday. We’ll watch today’s trends to see if this needs expanded further east for potential severe impacts Thursday.

We’ll transition to a general rain Friday morning before a drier theme arrives for the 1st half of the weekend. By that point, rainfall totals should check-in between 0.50” and 1” for most.

Saturday actually isn’t looking bad with the opportunity of sun and pleasant temperatures ahead of a colder push of air Sunday night. Speaking of that, temperatures should grow cold enough to allow snow to fly across the region by Monday morning. Despite the recent stretch of unseasonably warm temperatures, we can’t rule out heavier snow bursts creating a quick coating to dusting of wet snow on grassy surfaces.

Ah, storms to snow- March at its finest in the Hoosier state.

As we look ahead to the remainder of March, the pattern appears to be in position to lead to a colder than normal regime for a change. It should be noted that we don’t see any significant cold during the late month time frame, rather a setup that should drive a slightly cooler than normal pattern (overall) over the last 10 days, or so of the month.

More on how we think April opens later this week in our long range report.

Permanent link to this article: https://indywx.com/2024/03/13/wednesday-morning-rambles-talking-storms-and-a-cooler-pattern-to-close-out-march/

VIDEO: High And Dry Now, But Changes Loom As Early As Tomorrow; Colder Pattern Takes Shape Next Week…

Updated 03.12.24 @ 5:44a High pressure will remain in control of our weather today with plentiful sunshine and unseasonably mild temperatures. More in the way of unsettled weather builds in…

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Permanent link to this article: https://indywx.com/2024/03/12/video-high-and-dry-now-but-changes-loom-as-early-as-tomorrow-colder-pattern-takes-shape-next-week/

VIDEO: Warm Times This Week Give Way To A Colder Pattern; Unsettled Late Week And Potential Of Snow By Early Next Week…

Updated 03.11.24 @ 7:51a It’s more of the same this week as unseasonably warm temperatures dominate the headlines. We’ll turn unsettled by late week and this will signal a pattern…

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Permanent link to this article: https://indywx.com/2024/03/11/video-warm-times-this-week-give-way-to-a-colder-pattern-unsettled-late-week-and-potential-of-snow-by-early-next-week/

Long Range Report: Period Opens With More Of The Same, But Cooler Than Normal For A Change Late Month…

Updated 03.09.24 8:14a

It’s been a very warm March. So far, Indianapolis is running nearly 13° above the average month-to-date.

In the short-term (Week 1), the pattern will remain on the milder side of normal.

That all begins to change as we move into Week 2.

This is largely driven by the MJO sprinting through the traditionally warm phases for this time of year into the colder Phase 8 late month.

The temperature composite analog for MJO Phase 8 in March during an El Nino season:

Strikingly similar to what we see above on the Week 2 charts, huh?

The teleconnection suite aligns towards a cold look by Week 2.

A potentially more significant storm system looms late next week or over St. Patrick’s Day weekend to usher in the pattern change. Otherwise, with a colder pattern than normal settling in Week 2, this will also likely lead to a drier airmass and subsequent opportunity to dry out after a wetter than normal open to March (also of note is that we’re running a little more than 1″ above normal, year-to-date).

No way to be specific with details from this distance, but given the look to the overall pattern, I’d be surprised if we end the month without an opportunity of a little wet snow with the colder transition.

Permanent link to this article: https://indywx.com/2024/03/09/long-range-report-period-opens-with-more-of-the-same-but-cooler-than-normal-for-a-change-late-month/

VIDEO: Rain Increases In Intensity By Evening; MJO Influences On The Longer Range…

Updated 03.08.24 @ 7:50a “Showery” weather through the early to mid afternoon will give way to an increasingly heavier rain by evening, continuing through the overnight. This is all thanks…

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Permanent link to this article: https://indywx.com/2024/03/08/video-rain-increases-in-intensity-by-evening-mjo-influences-on-the-longer-range/

VIDEO: Another Round Of Heavy Rain On Deck; Briefly Cooler Sunday Before A Renewed “Mild-Up” Next Week…

Updated 03.07.24 @ 7:31a Though still stuck with a lot of clouds today, at least we’ll enjoy another dry day. That all begins to change Friday as a new system…

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Permanent link to this article: https://indywx.com/2024/03/07/video-another-round-of-heavy-rain-on-deck-briefly-cooler-sunday-before-a-renewed-mild-up-next-week/

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