Category: Unseasonably Cool Weather

Dec 11

Another Cold Week; Snow Showers Develop Overnight…

Highlights:

  • Snow showers develop overnight
  • Another arctic shot
  • Milder for the weekend

Snow Showers Develop Overnight…Another fast moving upper air disturbance is on the move southeast this morning and will result in a mostly cloudy and blustery open to the work week. As cold air advection (CAA) kicks in overnight and Tuesday, snow showers will develop across the region.  We’ll also note the potential of a more intense and persistent lake effect band setting up across east-central Indiana (where a couple inches will accumulate Tuesday).  If your travels take you into eastern and northeastern portions of the state Tuesday, prepare for sudden drops in visibility and slick travel.

Additional upper level energy will scoot through here during the middle part of the work week and while this will help to reinforce the cold, it’ll also provide scattered snow showers.

We’ll switch gears and get into a briefly milder southwesterly air flow over the upcoming weekend.  Strong and gusty southwest winds will aid in giving a boost to the mercury, but showers will make for a damp end to the weekend.

Upcoming 7-Day Precipitation Forecast:

  • Snowfall: Dusting (for most) to 2″ across east-central Indiana
  • Rainfall: 0.25″

Permanent link to this article: https://indywx.com/another-cold-week-snow-showers-develop-overnight/

Dec 10

Intriguing Look As We Move Closer To Christmas…

Temperatures will attempt to approach seasonal norms Monday (average high this time of year is 40°) before arctic reinforcements blow into town Monday night and Tuesday.

This will keep highs in the middle 20s Tuesday with wind chill values in the single digits and teens most of the day.

Scattered snow showers and embedded lake-generated squalls will accompany this arctic surge Tuesday.  As the wind trajectory sets up shop Tuesday afternoon, lake effect snow bands will impact portions of northeast and east-central Indiana.

4a forecast radar Tuesday

10a forecast radar Tuesday

5p forecast radar Tuesday

Cold weather will continue to dominate through the work week and an additional upper level disturbance may try to ignite snow showers Thursday.

As we push into the 8-10 day time frame, a “relaxation” of the cold is anticipated, but, as we’ve been discussing, any sort of moderation will be brief in this weather pattern.  Cold looks to continue to dominate, overall.  With that said, there will be a window of opportunity early next week where temperatures will go above normal for a change and the European ensemble shows this brief moderation nicely.

This doesn’t last long as the pattern begins to reload as Christmas week approaches.  As the evolution to a fresh cold pattern takes place, there’s a window of opportunity present for a more significant wintry system to potentially impact the Ohio Valley into the Mid Atlantic region.  Notice the relatively “flat” ridge across the southern tier and associated tight thermal gradient.  This look suggests we need to be on guard for the chance of a storm system to ride the thermal gradient in a west-to-east fashion, and has wintry implications for our region.  Far too early for specifics; just know the possibility looms of a wintry event, locally, as Christmas week nears.

Speaking of Christmas, it sure appears as if cold will overwhelm the pattern for Christmas, itself, and the overall cold regime doesn’t show signs of letting up (with the exception of potentially a day or two) into the new year.

Permanent link to this article: https://indywx.com/intriguing-look-as-we-move-closer-to-christmas/

Dec 09

Cold Week Ahead; Light Snow Chances…

Highlights:

  • Lake effect squalls this afternoon
  • Another arctic shot early next week
  • Light snow chances

Hope You Like It Cold…Upper level energy is moving through the region this morning and is responsible for the scattered snow showers.  Dry air “ate away” at the initial moisture and as a result we’re generally only looking at a dusting for most of central Indiana.  The exception to that will be a narrow, but potentially intense lake effect snow band and embedded squalls that set up shop this afternoon.  Under this band, an inch or two of snow will quickly accumulate.

Reinforcing cold, arctic air will pour into the state Monday night and Tuesday and will be accompanied by scattered snow showers. Another fast-moving disturbance will provide a shot of snow showers Wednesday night into Thursday.

All-in-all, no significant snow is on the horizon, but that may begin to change as Christmas nears.  After brief moderation in the pattern next weekend, we’ll reload the cold pattern and likely see a stormy regime unfold, as well.  Modeling suggests the southern stream will become more active in the weeks ahead…

Upcoming 7-Day Precipitation Forecast:

  • Snowfall: 1″
  • Rainfall: 0.00″

Permanent link to this article: https://indywx.com/cold-week-ahead-light-snow-chances/

Dec 07

Fast Moving Northwest Flow…

Highlights:

  • Cold times
  • First accumulating snow of the season
  • Additional disturbances to monitor next week

Snow Arrives Late Friday Night And Early Saturday…75% of our Thursday featured overcast skies and periodic flurries and light snow.  Thankfully, a bit of drier air is working in to provide a brighter close to the day.  A cold night is on deck as many fall into the teens.

A fast moving upper air disturbance will drop southeast into the Ohio Valley Saturday.  This will help spread a swath of snow across central Indiana overnight Friday into the wee morning hours Saturday.  Additionally, we’ll have to monitor the potential of enhanced lake effect bands across central and east-central portions of the state Saturday morning into the early afternoon.  In general, we expect 1″ to 2″ of snow to accumulate across central Indiana, but note there may be a couple of heavier totals where lake effect bands set up.

Another fast-paced disturbance will blow into town Monday night into Tuesday, followed by another Wednesday night into Thursday.  Cold weather will dominate through the period.

Upcoming 7-Day Precipitation Forecast:

  • Snowfall: 2″ – 3″
  • Rainfall: 0.00″

Permanent link to this article: https://indywx.com/fast-moving-northwest-flow/

Dec 06

VIDEO: First Stab At Weekend Snowfall Totals; Busy Winter Pattern Is Only Just Beginning…

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Permanent link to this article: https://indywx.com/video-first-stab-at-weekend-snowfall-totals-busy-winter-pattern-is-only-just-beginning/