Category: 7-Day Outlook
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Filed under 7-Day Outlook, Arctic Cold, Fog, Forecast, Freezing Rain, Rain, Sleet, snow, Unseasonably Cool Weather, Unseasonably Warm, Windy, Winter Storm
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January 7, 2018
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/
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″
Permanent link to this article: https://indywx.com/frigid-saturday-gives-way-to-a-messy-sunday-evening/
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/
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/
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″
Permanent link to this article: https://indywx.com/prolonged-bitterly-cold-pattern-rolls-along/
