• Category Archives Unseasonably Cool Weather
  • 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″


  • 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.


  • 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″


  • 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″


  • Cold Pattern Has Arrived; Accumulating Snow Friday Night-Saturday?

    Highlights:

    • Cold air settles in
    • 1st accumulating snow of the season
    • Active northwest flow pattern remains

    Unseasonably Cold…Northwest winds helped usher in a much colder air mass Tuesday behind an early morning frontal passage.  While a couple of flurries are possible Wednesday, we’re mostly dry through the midweek stretch.  We’ll notice resurgent cold and wind Wednesday night into Thursday.  Heavy winter gear will be warranted.

    Eyes will then turn to an approaching clipper system in what’s just the beginning of a busy northwest flow regime.  We expect clouds to increase Friday evening and snow to develop overnight, continuing into the day Saturday.  Given the dynamics in play, we still circle this period for the first accumulating snow event of the season.  Sure enough, latest model data is also trending snowier during this timeframe.  Another snow event looms late Monday into Tuesday with fresh arctic air drilling south early next week…

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall:  1″ – 3″
    • Rainfall: 0.00″


  • Here Comes Winter…

    Highlights:

    • Falling temperatures Tuesday
    • Much colder
    • Active northwest flow

    Winter Engaged…Showers and embedded thunderstorms will rumble across the state during the overnight as a cold front draws closer.  This is a “game changer” of a cold front, separating anomalous warmth over the past few days to a locked and loaded winter pattern.  Temperatures will fall through the day Tuesday and just enough wrap around moisture will be present to support mention of evening flurries.

    Morning scattered snow showers will continue early Wednesday before a reinforcing blast of arctic air blows into town at night.  This will set up a frigid close to the work week and feature a fast paced northwest flow pattern into the upcoming weekend.  We’ll have to remain very focused on upper level energy over the weekend.  Models have been struggling (as expected given the pattern) on the specifics and we know this type regime can overachieve in the snow department.  As things stand now, a period of snow showers with light accumulation still seems like a good bet Friday into Saturday.

    Another (potentially more significant) snow event looms early next week…

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 1″
    • Rainfall: 0.25″ – 0.75″


  • Winter Sets In…

    Highlights:

    • Showers and t-storms Monday night
    • Turning much colder
    • Snowy close to the work week

    Changes Loom…We couldn’t have asked for a more delightful weekend to open December.  Plentiful sunshine helped warm afternoon highs into the 55-60 degree range both Saturday and Sunday across central Indiana.  We sure hope you found a way to get out and enjoy it as major changes loom.

    A cold front responsible for ushering in these changes will blow through the state Tuesday morning.  Ahead of the cold front, look for a line of showers and thunderstorms Monday night.  For the most part, rain should be southeast of our region before the morning rush Tuesday.  Winds will shift to the northwest and help usher in a much colder air mass through the day.  This will set the tone for what the rest of the week will hold (and for that matter, most of the rest of the month).

    Cold, dry conditions will be with us for midweek before a vigorous upper level disturbance races southeast across the Ohio Valley to close the work week.  Snow showers and unseasonably cold conditions are a given Thursday night through Saturday morning and we’ll have to continue to monitor things closely for the prospects of the season’s first accumulating snow Friday.  These type events have been known to “overachieve.”

    The cold pattern is just setting in and shows no signs of departing in the longer range.  Additional wintry “mischief” looms next week…

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 1″ – 2″
    • Rainfall: 0.50″ – 0.75″