Category: Severe Weather

Quiet Pattern Turns Much More Active As We Close March…

This week is about as boring as it gets around these parts in mid to late March. With the active pattern as of late, we’ll gladly take it.

While we have a weak system that will deliver raw conditions and light rain Wednesday (touch of light snow and, or sleet across northern and east-central Indiana), that’s about it for “excitement” between now and early next week. High pressure will return as we get set to close the work week and head into the weekend, along with increasing sunshine and moderating temperatures. We still forecast highs to reach the 50s Thursday and Friday and 60s over the weekend.

It’d be wise to enjoy the “lull” in the action now, as things turn much more active as we flip the page forward to Week 2.

First up, in what will be a series of storm systems to impact the area as we close March and open April, will be a coast-to-coast storm that tracks east during the early portions of the Week 2 time frame. More specific to our area, this would likely be a system that begins to impact central Indiana during the early to middle parts of next week.

We’ve highlighted a couple of the items that have our attention, and if they come to fruition, will result in one more wintry “setback” before we say spring has officially sprung.

This is a bullish signal for an ominous spring storm, including the risk of severe weather to the south of the storm’s track and late season wintry potential to the north. It’s, obviously, far too early to get specific with this event, but it’s worth keeping a close eye on. Note that as the surface low (SL) is tracking east, a late season arctic high is pegged to be dropping southeast.

By the time we get to the middle of next Tuesday, the surface low is deepening across the TN Valley region. Despite the strong high nosing into New England, I’d expect a northward trend in the system as time gets closer, especially considering we’ll be in late March by this time. Stay tuned.

Thereafter, the pattern is set to remain quite active as we head into the 4th month of the year (2019 is flying by already). Buckle up; the well deserved quiet times now won’t last much longer…

By the way, despite what may be one last push of wintry conditions early next week, data remains in excellent agreement of a significant warmup as we flip the page to April. We continue to believe the month, overall, will average above normal in the temperature department.

Permanent link to this article: https://indywx.com/2019/03/18/quiet-pattern-turns-much-more-active-as-we-close-march/

VIDEO: 50/50 Weekend; Closer Look At The Late March-Early April Pattern…

A quiet open to the weekend is replaced with accumulating snow for portions of the state Sunday…

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Permanent link to this article: https://indywx.com/2019/03/16/video-50-50-weekend-closer-look-at-the-late-march-early-april-pattern/

Long Range Update: Cool “Set Back” Doesn’t Last; Looking Ahead To April…

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Permanent link to this article: https://indywx.com/2019/03/14/long-range-update-cool-set-back-doesnt-last-looking-ahead-to-april/

VIDEO: Busy Weather Day Across Central Indiana…

Significant weather alert day across central IN, including damaging wind potential and severe thunderstorms…

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Permanent link to this article: https://indywx.com/2019/03/14/video-busy-weather-day-across-central-indiana/

Client Brief: Thursday Severe Weather Update…

Type: Damaging Winds And Severe Potential

What: All modes of severe weather, including tornadic potential. Damaging wind gusts.

When: Damaging wind gusts develop late tonight into the predawn Thursday. Severe storms are most likely Thursday afternoon into early Thursday evening.

Wind: SW 45-55 MPH with gusts of 60 MPH+

Winds will begin to gust to potentially damaging levels during the overnight tonight.

A couple of rounds of thunderstorms will impact central Indiana during the overnight and again Thursday afternoon and evening. It’s the second round tomorrow afternoon that has us most concerned for the potential of strong to severe thunderstorms. A lot of this hinges on just how much clearing takes place from the morning round of showers and embedded thunder. Should we clear things out in significant fashion, and introduce some sunshine, the threat of severe weather tomorrow afternoon will grow significantly. Conversely, should we hold onto a mostly overcast sky, this will limit the overall severity of afternoon storms. The sun would help destabilize things in rather rapid fashion and given some of the other parameters in place, would lead to all modes of severe weather with storms that develop tomorrow afternoon- including large hail and tornadoes.

Additionally, due to the sheer strength of the storm system, damaging winds are still in play tomorrow (even outside of thunderstorms). In fact, winds will begin to gust upwards of 50 MPH+ during the overnight period tonight. If you haven’t already, please take the time now to tie down or secure loose objects to keep them from being blown about in the wind.

Conditions will begin to improve as early as tomorrow night, although we’ll turn much colder. Air will grow cold enough to promote “wrap around” moisture to fall in the form of snow by Friday afternoon.

Threat of strong to severe storms will be greatest Thursday afternoon into the early evening hours.

Permanent link to this article: https://indywx.com/2019/03/13/client-brief-thursday-severe-weather-update/

Morning Video Update On The Damaging Wind Threat; Severe Potential Thursday…

Thursday is shaping up to be a significant weather day across the state. Multi-threat severe potential and damaging wind event both on the table…

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Permanent link to this article: https://indywx.com/2019/03/13/morning-video-update-on-the-damaging-wind-threat-severe-potential-thursday/

VIDEO: Concern Is Increasing For The Potential Of Severe Weather Thursday; Strong Wind Event On Deck…

Concern is growing for the potential of severe weather Thursday. A strong and potentially damaging wind event is still on the table Wednesday night through Thursday, as well…

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Permanent link to this article: https://indywx.com/2019/03/12/video-concern-is-increasing-for-the-potential-of-severe-weather-thursday-strong-wind-event-on-deck/

VIDEO: Closer Look At The Strong Wind (And Storm) Potential; More On The Late March-April Pattern…

Strong winds and the potential of strong storms loom Thursday. We look in more detail at these threats and ahead to the pattern for late March and into April…

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Permanent link to this article: https://indywx.com/2019/03/12/video-closer-look-at-the-strong-wind-and-storm-potential-more-on-the-late-march-april-pattern/

Long Range Update And Summer Preview…

One more unseasonably chilly spell awaits late-March (behind our mid-March spring “tease”), but we continue to believe an unseasonably warm stretch of weather gets going by the last few days of the month- continuing into April. Furthermore, meteorological spring overall continues to look warm, relative to average, for central Indiana. In the event you missed our Spring Outlook earlier, it can be found here.

However, what follows the late-March set-back is a more significant and sustained push of unseasonably warm conditions.

Note the positive PNA that will help drive the chilly pattern next week returns to neutral as we put a wrap on the month:

To no surprise, modeling is painting a vastly different look as we close March and open April.

We turn cooler next week with the positive PNA in control, but this won’t last…

Note the significant change aloft (and at the surface) as we close the month and get set to head into April…

Longer term, modeling continues to give us an actual spring this year. We continue to expect average to slightly above average temperatures in April, complete with slightly above normal precipitation (with a “ramp up” in severe chances, locally).

Modeling is following suit with that idea:

It should also be noted that while not shown, the new European Weeklies in this evening also support the warmer than normal April idea.

As we look forward, we continue to research and build our summer outlook. Early indications would suggest that we transition out of an overall warmer than average spring towards a seasonal, to slightly below average, time of things this summer, complete with above normal precipitation. We, obviously, still have some time to go before the final product is ready to be published, but stay tuned. We are planning to launch our official summer outlook in early May.

Permanent link to this article: https://indywx.com/2019/03/11/long-range-update-and-summer-preview/

VIDEO: High Winds And Storms Arrive Thursday; Thoughts Turn To April…

High winds and storms arrive Thursday. We also look ahead towards late-March and April…

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Permanent link to this article: https://indywx.com/2019/03/11/video-high-winds-and-storms-arrive-thursday-thoughts-turn-to-april/

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