Mar 08
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/
Mar 07
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/
Mar 05
Updated 03.05.24 @ 7:53a
We’ve had a few storms north of the city, itself, early this morning, but for the bulk of the I-70 corridor, things are just now starting to get “busy.” Anticipate rain and storm coverage to continue to expand and grow heavier through the late morning into early afternoon before diminishing.
Rainfall totals of 0.25” to 0.75” will be most common with a few localized 1”+ reports. Rain and storm coverage will diminish through the afternoon and evening hours across the region.
High pressure will briefly build into the region midweek, allowing for drying skies and pleasant early-March conditions. Enjoy, as another storm system will deliver a round of rain and embedded thunder Friday PM and Saturday.
We turn briefly colder Sunday (and windy) but by Monday, the next warm-up is already scheduled to be well underway. This is just another instance of a brief chilly blast without any legs.
Speaking of cold, while there does remain a window of opportunity for a below normal regime to develop very late March and early April (if we can finally get the MJO to slide over into the colder phases), the short to medium term is still void of any sort of chill, at least for more than a day or 2 behind passing storms. Note the Week 2 ensemble data is still much warmer than normal for our neck of the woods. – A direct byproduct of the MJO rumbling through those classic warm phases.
Permanent link to this article: https://indywx.com/2024/03/05/storms-become-more-widespread-through-the-morning-another-storm-system-arrives-late-week-still-no-sign-of-a-flip-to-colder/
Mar 03
Updated 03.03.24 @ 8:19a
A gorgeous Sunday is on deck with highs rising into the 60s and near 70° west. Enjoy that sunshine while we’ve got it!
Dry conditions should prevail through the daytime hours Monday before showers and embedded thunder roll into town overnight and Tuesday morning. Unsettled conditions will hold through the day Tuesday.
Rainfall totals of 0.25” to 0.75” will be common by Tuesday night across the region.
The next low pressure system and associated frontal boundary will impact us Friday into Saturday. Look for a more widespread, heavier round of precipitation with this particular system as we close the work week.
Despite cooler shots of air flowing in briefly behind frontal passages, there’s no sustained below normal temperature regime on the horizon, and for good reason with this kind of MJO:
Permanent link to this article: https://indywx.com/2024/03/03/sunday-morning-rambles-tracking-2-systems-this-week-and-more-unseasonably-warm-conditions-ahead/
Mar 01
Updated 03.01.24 @ 5:53a
Despite a rather gloomy and seasonally chilly Friday, the remainder of the upcoming 7-day period will feature nothing but unseasonably warm conditions. We’re set to open meteorological spring like we closed out meteorological winter: well above normal in the temperature department.
After a perfect weekend (at least by early-March standards), we’ll see periods of unsettled weather as an anomalous upper air pattern remains locked in. Note the deep western trough and expansive, strong eastern ridge.
We’ll push 60° Saturday, 70° Sunday, and zip well into the 70s Monday. (Monday’s record is 78°, set back in 1983, just in case you were wondering).
Dry conditions should remain until we get to Monday night and Tuesday morning.
It’s all the start of an unsettled pattern. An upper low will lift north into the OHV Wednesday with additional showers, followed by a new cold front and associated surface low set to impact our neck of the woods mid and late week.
By the time we get to next weekend, widespread 1”+ rain totals can be expected from a combination of the systems.
Permanent link to this article: https://indywx.com/2024/03/01/another-spring-like-weekend-and-week-ahead/
Feb 29
Updated 02.29.24 @ 5:13a
Tomorrow we’ll welcome in meteorological spring and the first couple weeks of March appear to continue the unseasonably warm trend. At times, additional warm records will likely fall.
This is strongly correlated with the Madden-Julian Oscillation highly amplified in the classic warm phases this time of year. (You can absolutely say goodbye to any sort of sustained cold prospects this time of year with the MJO in phases 4, 5, and especially 6). Now, down the road, we’ll want to watch and see if we can maintain this amplitude and rumble into the transitional colder Phase 7 before a potential opportunity to see cold grow more impressive should we *finally get into Phase 8 late month. Remember that we made an attempt at that back in mid-February before things instead collapsed into the neutral phase. Moral of the story for folks longing for one more bout of sustained cold prior to the warmer months ahead, “don’t hold your breath.” The trend certainly isn’t your friend.
Back to the present. No matter what the teleconnections say, an amplified MJO will always win out. And the current MJO forecast to roll through the phases listed above screams that our recent warm times will “keep on keepin’ on” as we navigate the 1st half of March.
The Phase 5 and Phase 6 composite analogs at 500mb (upper air pattern) for an El Niño March:
What this should also result in is an active first half of the month, including above normal rainfall and likely at least another early season strong to severe weather event before we get to mid month.
It’s a classic pattern that should feature low pressure systems ejecting out of the Southwest and South-central into the Plains and western Great Lakes region. That puts our neck of the woods on the warm/ wet (and at times stormy) side of the equation.
As we move into late-March and early April, we’ll have our eyes focused on the MJO and whether or not we can, indeed, get into those traditionally colder phases. Stay tuned.
Permanent link to this article: https://indywx.com/2024/02/29/long-range-report-warm-open-to-meteorological-spring-mjo-and-nao-impacts-longer-term/
Feb 28
Updated 02.28.24 @ 7:44a Today will serve as a reminder we are still in winter, after all, but another quick warm-up will get underway as we head through the weekend…
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Permanent link to this article: https://indywx.com/2024/02/28/video-sharply-colder-today-before-a-quick-warm-up-no-let-up-to-the-warm-pattern-down-the-road/
Feb 25
Updated 02.25.24 @ 7:55a
Though a bit earlier than usual this year, it’s time to “dust off” our dedicated weekly post aimed solely at looking at the potential of severe weather in the week ahead. You can expect this to be posted each Sunday morning moving forward through the spring and summer before sunsetting for another year come late September.
Forecast period: 02.25.24 through 03.03.24
The “headliner” system in the forecast period is an area of low pressure tracking into the Great Lakes region Tuesday into Wednesday (02.27 and 02.28). This will drag a trailing cold front through the Ohio Valley Wednesday morning into the afternoon (west to east).
The Storm Prediction Center includes most of the region in some sort of risk of severe weather Tuesday. The greatest risk of severe appears to include an area north and west of a rough line from Evansville northeast to Bloomington and Toledo, OH. While all modes of severe weather are in play, we remain most concerned for the threat of damaging straight line winds Tuesday PM.
Ingredients aren’t off the charts (rarely are this time of year), but parameters are sufficient enough to warrant the chance of strong to severe storms Tuesday into very early Wednesday morning before the cold front moves through the region and results in falling temperatures and a much more stable airmass engulfing the entire OHV through the day. Stay tuned as we continue to fine tune specific timing of storms.
Beyond this point, an area of high pressure will settle overhead, resulting in a much more stable pattern to close the week and head through the weekend. Expect sunshine to return and another quick warm-up to get underway during this period. Highs will zoom back into the 60s next weekend.
Looking ahead, we’ll need to monitor the threat of another potential strong-severe storm window during the early to middle stages of next week. Far too early for specifics, but similar ingredients appear in play which isn’t shocking given the ‘mean’ upper air pattern shown to open this post. We also want to reiterate the above to well above average precipitation expected throughout meteorological spring. Image 3 above highlights the wet look over the upcoming couple weeks.
Upcoming Storm Dates to keep an eye on:
*10-day rainfall projection: 1.25″ – 2.25″
Permanent link to this article: https://indywx.com/2024/02/25/weekly-agwx-and-severe-weather-outlook-45/
Feb 24
Updated 02.24.24 @ 8a Any lingering light snow showers will quickly come to an end this morning and we’ll welcome sunshine back into the picture later today. Sunday will feature…
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Permanent link to this article: https://indywx.com/2024/02/24/video-overall-strong-signal-for-unseasonable-warmth-remains-on-charts-into-early-march-watching-storms-early-next-week/
Feb 23
Updated 02.23.24 @ 7:34a
A fast moving clipper system will offer up a round of snow tonight across northern and central IN. Here’s our latest thinking with respect to accumulation numbers. Snow lovers, we recommend getting out to enjoy early Saturday as an increasingly powerful late February sun angle will have many asking “what snow?!” as early as the afternoon.
A quick warm-up is on deck for the 2nd half of the weekend and we’re eyeing the potential of a couple rounds of storms Tuesday. A few of these storms could become severe, with damaging straight line winds the biggest concern from this distance with any of the severe activity that potentially develops.
Permanent link to this article: https://indywx.com/2024/02/23/video-tracking-snow-tonight-followed-by-a-quick-warm-up-and-storms-next-week/