Category: Sleet

Jan 09

Brief Thaw; Severe Winter Event Looms For A Portion Of The Region…

Highlights:

  • Fog and drizzle
  • Major winter storm looms
  • Frigid air returns

Brief Thaw; Major Winter Storm On Deck…The short-term will be dominated by low clouds and areas of fog, along with patchy drizzle.  Areas of freezing fog and drizzle are possible early Wednesday morning before conditions “warm” in earnest through the afternoon and evening.

A cold front will approach from the northwest Thursday with showers and gusty southerly winds.  This southerly air flow will deliver a briefly milder time of things during the day Thursday before the cold front settles south Thursday night.  As this transpires, surface low pressure will organize along the southern end of the boundary before tracking northeast into the Tennessee and Ohio Valley Friday into Saturday.

We continue to favor a track up west of the spine of the Appalachians and note some of the more progressive data is beginning to correct west to align closer with the other guidance that’s been spitting out big snow numbers over the past few days.  Before we discuss snow, an icy mixture of sleet and freezing rain will fall across the region late Thursday night into early Friday.  We expect precipitation to transition to all snow Friday afternoon, continuing into Saturday.  At times, heavy snow is likely.

While we aren’t ready to lay out an accumulation map just yet, the heaviest snow axis will likely include 8″ to 12″+ amounts somewhere through central portions of the state.  We’ll aim to provide a first call snowfall map this time tomorrow.  Furthermore, there will also be a wind component to this storm.  What’ll initially be a wet, heavy snow will turn more “powdery” in nature as arctic air gets pulled into the storm.  That powder will get blown and drifted about Friday night and Saturday and travel will be significantly impacted.

Frigid conditions will return over the weekend before another accumulating snow pushes into town Monday.  Behind this snow maker, a brutal push of sub-zero air is likely next week.

Upcoming 7-Day Precipitation Forecast:

  • Snowfall: 6″+
  • Rainfall: 0.50″ to 0.75″

Permanent link to this article: https://indywx.com/brief-thaw-severe-winter-event-looms-for-a-portion-of-the-region/

Jan 07

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″

Permanent link to this article: https://indywx.com/busy-busy-busy/

Jan 04

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″

Permanent link to this article: https://indywx.com/frigid-times-watching-sunday/

Jan 03

VIDEO: Snow Develops Today With A Fresh Punch Of Arctic Air On Deck…

Light snow will develop today along with gusty winds and reinforcing arctic air to follow. Attention remains on Sunday into Monday…

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Permanent link to this article: https://indywx.com/video-snow-develops-today-with-a-fresh-punch-of-arctic-air-on-deck/

Jan 02

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″

Permanent link to this article: https://indywx.com/snow-develops-wednesday-renewed-arctic-air/