Updated 01.28.21 @ 6:30p
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Permanent link to this article: https://indywx.com/2021/01/28/video-pattern-drivers-starting-to-align-to-deliver-more-sustained-cold-as-we-get-deeper-into-feb/
Jan 28
VIDEO: Initial Snow Idea For The Weekend; Reviewing The Latest JMA Weeklies…
Updated 01.28.21 @ 8a
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Permanent link to this article: https://indywx.com/2021/01/28/video-initial-snow-idea-for-the-weekend-reviewing-the-latest-jma-weeklies/
Jan 27
01.27.21 Weather Bulletin: Snow Builds In This Afternoon For The Southern Half Of The State; Keeping Close Eyes On The Weekend…
Updated 01.27.21 @ 7:51a
No Rest For The Weary…A fast moving area of low pressure will scoot east this afternoon and evening. This will spread a swath of light to moderate snow across the southern half of the state in the 1p (west) to midnight (exiting southeastern portions of the state) window. While still primarily a light event, models have “beefed up” snow amounts ever so slightly with this system over the past 24 hours. Our snowfall forecast for system #1 can be found below.
Colder air will pour in for all during the overnight and should be just enough to kick up some lake-generated scattered snow shower activity into Thursday morning.
Weak high pressure will then build in and supply a sunny close to the work week. You enjoy the sun and briefly quieter weather and let us worry about the weekend!
Speaking of the weekend, this is the period that continues to look increasingly likely to produce the most impactful winter storm of the season for our immediate area. We forecast early sun to quickly give way to a lowering and thickening cloud canopy Saturday (the sky will have the looks of a snow storm brewing by lunch for most). Precipitation will then overspread the region from southwest to northeast as we progress through the afternoon. The potential is there for a heavy wet snow thump Saturday PM before precipitation transitions to a wintry mix as low pressure scoot by just to our south. Before that transition, “several” inches of wet snow is looking increasingly likely. As colder air wraps back around into the region, wrap-around moisture will fall as light snow and snow showers into early next week.
Permanent link to this article: https://indywx.com/2021/01/27/01-27-21-weather-bulletin-snow-builds-in-this-afternoon-for-the-southern-half-of-the-state-keeping-close-eyes-on-the-weekend/
Jan 26
VIDEO: Negative AO, Negative PNA Patterns Are Far From Boring…
Updated 01.26.21 @ 9:40p
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Permanent link to this article: https://indywx.com/2021/01/26/video-negative-ao-negative-pna-patterns-are-far-from-boring/
Jan 26
01.26.21 Weather Bulletin: Shot Of Southern Light Snow; Bigger Weekend Event?
Updated 01.26.21 @ 8:09a
Socked In…Low clouds and areas of drizzle will remain with us for the better part of the day. As colder air filters back in this evening, a few flurries may mix with the drizzle as the moisture departs.
Our attention will then shift to upper level energy that will race east Wednesday and Wednesday night. This feature will skirt the southern portion of the state and squeeze out some light snow Wednesday afternoon and early evening. “Light” is the key word, but places from Vincennes over to Madison and points south could accumulate around an inch of snow. A dusting to half an inch may make it as far north as Bloomington and surrounding areas, but the lack of moisture, combined with forward momentum with this system will make it tough to get anything meaningful for most of the region.
Colder air will filter into the state Wednesday night and should be enough to fire up scattered snow showers for all into Thursday morning. Sunshine will return Friday (the “calm before the (bigger) storm”).
Saturday may open with early morning sunshine, but clouds will quickly thicken up and lower as low pressure heads this direction out of the central Plains. An overrunning event will ensue by Saturday afternoon. With cold air still entrenched, we’re talking about a big ole mix bag of sleet and snow to begin. This will require close attention as models have been trending colder as of late and the flavor of our weekend forecast will follow suit. The potential is there for several inches of snow/ sleet Saturday before precipitation possibly ends as drizzle Sunday morning. For now (especially given how the snow season has gone thus far) we’ll bracket for the possibility of 1″-3″, but just know this system has an upside. 🙂
Colder air will whip in here Sunday afternoon and Monday with wrap-around moisture ending as snow and snow showers. Stay tuned.
Permanent link to this article: https://indywx.com/2021/01/26/01-26-21-weather-bulletin-shot-of-southern-light-snow-bigger-weekend-event/
Jan 25
Evening VIDEO: “Active” Would Be An Understatement Into Early February…
Updated 01.25.21 @ 9:35p
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Permanent link to this article: https://indywx.com/2021/01/25/evening-video-active-would-be-an-understatement-into-early-february/
Jan 25
Early Afternoon Update On Today’s Wintry Mix…
Updated 01.25.21 @ 1:42p
After a wintry mix that featured everything (and the kitchen sink ;-)) during the onset has predominantly transitioned over to sleet and freezing rain across immediate central Indiana. Look for this to continue for the next couple of hours before the 1st wave of significant moisture moves east by mid to late afternoon.
As we look forward, another wave of lighter precipitation will target the northern half of the state (especially from Indianapolis and points north) later this evening into Tuesday morning. Though precipitation should be lighter with this next wave, the concern is that it may still fall as “frozen” (sleet) or “freezing” (rain) during this time period, especially from the northern Indianapolis suburbs and points north as temperatures look to hover around, or just below, the freezing mark through the evening. The difference of just 1° truly will make a world of difference of the associated impacts regarding travel tonight and early Tuesday morning north of the city. You can see how high resolution guidance keeps the sub-freezing air locked in place just north of Indianapolis tonight.
For our clients in the salting and snow removal business, plan to remain busy during the overnight across the northern half of the state as this next wave of moisture moves in. An additional .10 to .25 (liquid equivalent) can be expected for central Indiana with liquid equivalent amounts of .25 to .50 across the northern 1/3 of the state.
More on this and what lies ahead for midweek in our evening video update. Stay safe out there, friends!
Permanent link to this article: https://indywx.com/2021/01/25/early-afternoon-update-on-todays-wintry-mix/
Jan 25
VIDEO: Tracking 3 Storm Systems In The Week Ahead…
Updated 01.25.21 @ 7:47a Before we dig into the other features ahead (in the video below), here’s a breakdown of expected impacts from the initial system to open the work…
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Permanent link to this article: https://indywx.com/2021/01/25/video-tracking-3-storm-systems-in-the-week-ahead/
Jan 24
Freezing Rain Builds Into Central Indiana Monday Morning: Reviewing Latest Data & Where Greatest Ice Accretion May Occur…
Updated 01.24.21 @ 4:08p
As we write this, the Indianapolis National Weather Service is in the process of issuing a Winter Weather Advisory across central Indiana from 5a to 1p Monday.
While areas of freezing fog/ freezing drizzle will impact some communities, generally a quiet evening is in store for central Indiana. Unfortunately that will begin to change prior to most folks leaving for work/ school Monday morning. A shield of moisture will lift north into the state during the predawn hours before encompassing immediate central Indiana after sunrise. With shallow cold air locked in place at the surface, the predominant precipitation type will be freezing rain across central Indiana. Surface temperatures will likely be between 28° & 32° during the onset of precipitation Monday morning.
While areas from Indianapolis and points south will change to rain by early afternoon, the growing concern here is the lack of warm air advection with this system. Areas from the northern ‘burbs and points north may have a hard time nudging above the freezing mark (at least before the majority of precipitation falls) tomorrow afternoon. Note the high resolution data still holding onto the colder air tomorrow evening (image below valid at 5p Monday).
As such, the highlighted area below is of greatest concern for the threat of ice accretion greater than 1/4” Monday. This includes northern ‘burbs and points north to a line from Lafayette over to Kokomo and Portland. Areas further note will remain cold enough to maintain wintry precipitation, but the depth of the cold will likely keep things predominantly of the frozen (not “freezing” 🙂 variety).
We’ll be back into the office tonight and issue our official client brief, but I wanted to be sure to touch base on our latest thoughts from the road this afternoon. Enjoy the rest of your Sunday!
Permanent link to this article: https://indywx.com/2021/01/24/freezing-rain-builds-into-central-indiana-monday-morning-reviewing-latest-data-where-greatest-ice-accretion-may-occur/
Jan 24
VIDEO: Tracking Multiple Winter Weather Makers This Week…
Updated 01.24.21 @ 8:51a
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Permanent link to this article: https://indywx.com/2021/01/24/video-tracking-multiple-winter-weather-makers-this-week/
Central Indiana Radar
