• Category Archives 7-Day Outlook
  • Brief Thaw; Late Week Winter Storm Brewing?

    Highlights:

    • Brief midweek thaw
    • Late week winter storm threat
    • Much colder air returns

    Take It Slow This Morning…An overnight mixture of sleet, freezing rain, and snow has created a few slick spots, but widespread travel issues haven’t been reported this morning.  Thankfully, even a 1° to 2° difference (milder) in surface temperatures overnight helped us out in that regard.  The wintry mix is heading out and we should even see a little sunshine later today.

    As temperatures settle back below freezing tonight, concern is present for the possibility of freezing fog and freezing drizzle in spots into Tuesday morning.  A warm front will then lift north through the state Wednesday helping our brief midweek “thaw” get underway in earnest.  Showers will accompany the milder conditions into Thursday.

    A cold front will settle south through the state Thursday night and colder air will press southeast.  At the same time, a secondary area of low pressure will develop along the tail end of the front and lift northeast into the Ohio Valley Friday evening into early Saturday.  While this has the sure sign to be a significant, impactful winter storm, we’re obviously still a couple days away from being able to nail down precise track and strength.  Stay tuned and keep close tabs on that Friday-Saturday forecast.  We’ll turn much colder once again over the weekend.

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 2″ to 4″
    • Rainfall: 0.50″ to 0.75″


  • Busy, Busy, Busy…

    Highlights:

    • Messy wintry mix arrives tonight
    • Briefly milder midweek
    • Potential storm brewing Friday

    Snow And Ice Arrive Tonight…Clouds will lower and thicken across the state as we progress through the day.  We’ll also note a stiff easterly breeze as an approaching storm system inches ever so much closer.  This storm system will spread a wintry mix through the state tonight into early Monday morning.  Initially, we think most of central Indiana will deal with snow before a transition to freezing rain during the overnight, continuing into Monday morning.  Before the transition, 1″ to 2″ of snow seems to be the best idea before an icy glaze develops atop the freshly fallen snow.  Based on the expected transition to freezing rain, there’s an opportunity for up to a tenth of an inch of freezing rain.  That said, we’ll have to keep a very close eye on temperature profiles this evening as even the difference of a couple of degrees aloft can make all the difference in a faster or slower transition to freezing rain.  Expect the Monday morning commute to be heavily impacted.

    Colder air will push back in here Monday evening into Tuesday with considerable cloudiness remaining.  A milder southerly flow will overtake the region Wednesday into Thursday.  Low clouds and fog along with drizzle will develop Wednesday and we may have to deal with a touch of freezing drizzle early in the day before temperatures rise.  A spike in temperatures will take place Thursday, briefly sending central Indiana into the 50s before a cold front slides through the state Thursday evening.

    An area of low pressure will develop along the southern end of the frontal boundary and lift northeast into the TN Valley and eastern Ohio Valley Friday.  As colder air presses into the region, precipitation will change from a wintry mix of sleet and freezing rain to all snow through the day Friday.  It’s far too early to get specifics around accumulation ideas, but this storm has potential to be significant.  Much colder air will whip in here next weekend.

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 2″ – 4″
    • Rainfall: 0.50″ – 0.75″


  • Frigid Saturday Gives Way To A Messy Sunday Evening…

    Highlights:

    • Bitter cold eases
    • Mix of snow and ice
    • Milder midweek

    Bitter Today; Wintry Mix By Sunday Evening…Most central Indiana reporting sites are checking in this morning between 6° and 10° below zero, but we note a couple of spots are even colder.  Arctic high pressure will remain in control of our weather today, leading to sunny and bitter conditions.

    An approaching storm system Sunday will help increase our cloud cover through the morning and we expect snow to develop by evening.  As warmer air aloft works into the region, a transition to freezing rain is expected during the overnight into early Monday morning.  The morning commute looks very messy Monday.

    Moderating temperatures will develop by midweek and as the milder air moves over the cold surface, thick fog and areas of drizzle and light rain will develop Wednesday.  A cold front will sweep through the state Thursday with showers and we’re keeping close tabs on a secondary piece of energy that will lead to a wintry close to the work week for portions of the Ohio Valley.  In fact, a significant winter event should develop out of this pattern Friday into Saturday.  The early call for now is that this is east of our region, but stay tuned.  Snow showers will fly in the colder air to close the week regardless.

    Upcoming 7-Day Precipitation Forecast:

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


  • Frigid Times; Watching Sunday…

    Highlights:

    • Fresh batch of arctic air served up
    • Watching Sunday
    • Moderating next week

    Brutal Cold Continues…A fresh batch of arctic air arrived into the Hoosier state last night.  This will set the stage for an absolutely frigid close to the week.  Wind chill values will periodically reach dangerous levels between now and Saturday morning.  Additionally, we’ll add a few more mornings to the sub-zero club in what’s already an impressive list this winter.

    Attention remains on a developing storm system that will impact our region Sunday into early Monday.  We forecast a lowering and thickening cloud deck to arrive overnight Saturday into Sunday morning, followed by a wintry mix Sunday afternoon and evening.  Messy wintry precipitation should continue into early Monday before precipitation departs to our east.  Data, overall, has trended colder over the past 24 hours and would lead to more impact from snow and less ice.  Stay tuned.

    Drier times return early next week along with moderating conditions ahead of the next storm system that will approach late next week.

    Upcoming 7-Day Precipitation Forecast:

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


  • Snow Develops Wednesday; Renewed Arctic Air…

    Highlights:

    • Wednesday powder
    • Fresh batch of arctic air
    • Messy late weekend storm

    Snow Develops Wednesday Afternoon…Upper level energy will move across the region Wednesday and result in snow overspreading the northern half of the state (especially from Indianapolis and points north) during the afternoon and evening.  While snowfall amounts won’t be particularly impressive (generally 1″ or less), roads will likely get slick in relative quick fashion prior to the evening drive.  You’ll want to leave extra time on your evening commute home.  Otherwise, blowing and drifting snow will develop tomorrow night into Thursday as fresh arctic air pours into the area.

    Attention will shift to lake effect snow across northeastern portions of the state Thursday before another ripple of energy drops southeast and sparks additional snow showers across central parts of the state to wrap up the work week.  Saturday will be dry and very cold.

    Clouds will be on the increase overnight Saturday into Sunday morning and a mixed bag of precipitation will overspread the region Sunday PM.  We still have a few more days to watch things unfold, but concern remains for an icy cocktail of sleet and freezing rain after a potential initial burst of snow.  While warm air advection (WAA) will likely win out, we’re afraid it’ll be very difficult to warm the surface enough to prevent ice from becoming an issue Sunday afternoon into early Monday.  Cold air will sweep back in here Monday evening into Tuesday with snow showers and gusty winds.

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 1″ to 3″
    • Rainfall: 0.10″


  • Prolonged Bitterly Cold Pattern Rolls Along…

    Highlights:

    • Dangerously cold pattern
    • Midweek snow showers
    • Messy weekend

    Take The Cold Seriously…Dangerously cold conditions will continue this week.  With clear skies and a fresh snowpack, temperatures will quickly tumble tonight into double-digit below zero territory across most of central Indiana.  Add in even the slightest wind and wind chill values will plummet to 20 to 30 degrees below zero.  Limit time outside, check on your neighbors, and ensure your pets are cozy indoors, as well.

    Next up on the agenda will be upper level energy moving southeast across the region Wednesday.  This will spark an area of snow showers with light accumulations for our hump day followed by reinforcing bitter cold to close out the week.  Additional upper level energy and some lake moisture will provide the chance of snow showers Friday in spots, as well.

    A more widespread and significant storm system will arrive over the weekend.  Clouds will increase Saturday night into Sunday morning and a messy mixture of snow, sleet, and freezing rain will invade Sunday afternoon and evening.  Renewed bitterly cold, arctic air will plunge southeast early next week.  Additional sub-zero days are likely just beyond the forecast period…

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 1″ to 3″
    • Rainfall: 0.10″


  • Additional Snow Overnight; Dangerous Cold Grips The Region…

    Highlights:

    • Blowing and drifting issues
    • Snow returns late tonight
    • Prolonged stretch of severe cold

    Bundle Up; Snow Returns Overnight…Yesterday’s snow event went as planned and many Hoosiers are waking up to several inches of powder this morning.  The winners yesterday stretched from Frankfort to Elwood to Winchester with a 6″ to 7″ band of snow.  All of that fresh snow will be blown and drifted about today with strong and gusty northwest winds.  If your travels take you into the open country, plan on significant blowing and drifting and leave extra time to reach your destination.

    Additional upper level energy will scoot across the region late tonight into early Sunday and this will help kick up an area of light snow for central and southern portions of the state as we head into New Year’s Eve.  With the arctic air mass in place, don’t be surprised if we squeeze a quick inch out in spots.

    Otherwise, the big story is the prolonged nature of this severe cold.  At times, wind chill values will drop to more than 30° below zero through early week.  Take the frigid conditions seriously.  Reinforcing arctic air will pour in here late next week and lead to scattered snow showers along with a bitter feel after slight midweek “moderation.”

    Upcoming 7-Day Precipitation Forecast:

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


  • Accumulating Snow Friday; Dangerous Cold Develops Next Week…

    Highlights:

    • Accumulating snow on the way
    • Frigid times remain
    • Dangerously cold next week

    Snow And Major League Cold On Deck…A weak impulse of energy will track across the region today and will be just enough to ignite a couple of snow showers and scattered flurries.  For most, this won’t be a big deal.  A more impactful opportunity for accumulating snow will arrive Friday as a clipper system moves southeast.  Snow will develop late tonight across the Plains states before expanding in overall coverage and intensity as it pushes southeast into the Ohio Valley Friday.  With such cold air in place, snowfall ratios will be higher than the standard 10:1 and snow will quickly accumulate on roadways, making for slick travel Friday afternoon into the evening.  Here’s our current snowfall forecast for Friday:

    Snow showers will taper off Saturday morning and give way to a blustery, bitter day.  Temperatures will fall through the day and wind chill values will turn dangerous Saturday afternoon and evening (10° to 20° below zero).  This arctic intrusion will set us up for a frigid close to 2017 and open to 2018.  In fact, we expect severely cold conditions early next week (double-digit below zero readings, including wind chill values approaching 30° below zero at times).  Plan and prepare now.

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 2″ to 4″
    • Rainfall:  0.00″


  • Snow Chances; Cold Only Grows Colder…

    Highlights:

    • Frigid times
    • Snow chances return
    • Bitter open to 2018

    Serious Cold…Arctic high pressure has settled over the region and combined with our snow cover to produce the coldest morning around these parts in a couple of years.  Some across central Indiana are awaking to double digit below zero readings.  Even the slightest breeze coupled with these bitterly cold readings creates dangerous conditions to spend time outdoors.

    Cold is here to stay.  In fact, we’ll only grow more bitter next week.  If we can put snow down between now and then, there’s a good chance we’re not even cold enough early next week with forecast temperatures.  Speaking of snow, we’ll have to keep close tabs on impulses of upper level energy late tonight into Thursday for the potential of overachieving in the snowfall department (similar to what the I-70 corridor experienced Tuesday).  With arctic air in place, it doesn’t take much to get snow going.

    We’re still expecting a more widespread snow event over the weekend.  We’re targeting Friday night into Saturday for light snow to overspread the region and this will setup a frigid close to the year and open to 2018.

    Upcoming 7-Day Precipitation Forecast:

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


  • “It’s Beginning To Look A Lot Like Christmas…”

    Highlights:

    • Wet snow today
    • New snow maker for Christmas Eve
    • Turning bitterly cold

    Festive Forecast…Rain changed to wet snow for northwestern ‘burbs between 4a-5a and the transition from wet to white will continue to progress southeast through the morning.  A period of heavy, wet snow will fall through mid and late morning before precipitation begins to taper off.  Our going snowfall forecast from yesterday continues to work with this event (for most it’s a slushy coating to 1″ in and around Indianapolis, increasing to a couple inches north).  We experienced our high temperature for the day shortly after midnight.

    Attention will then quickly shift to a new snow maker arriving Christmas Eve.  The day will start dry, but snow will quickly develop as we progress into the afternoon.  At times, snow will come down at a moderate clip and provide a classic setting for your festivities tomorrow evening.  (We’ll have a fresh discussion posted later this afternoon for this event).  Travel safely and leave extra time to reach your destination, as snow will accumulate on roadways.  Additionally, we’ll add wind into the mix tomorrow night into Christmas Day with fresh cold air advection.

    Speaking of Christmas, if you’re anticipating Santa to deliver outdoor gifts, you’ll want to plan to bundle up as you head out to enjoy the new toys.  It’ll be a dry, but very cold Christmas.

    Cold will remain the weather word to sum up next week and we’ll target the end of next week for the potential next winter event.  It’s a busy, fun pattern if you like winter!

    Upcoming 7-Day Precipitation Forecast:

    • Snowfall: 3″ – 5″
    • Rainfall: 0.00″