Category Archives: Unseasonably Cool Weather

Wintry Weekend; Accumulating Snow Sunday…

Screen Shot 2017-01-27 at 4.59.51 PMHighlights:

  • Wintry weekend
  • More widespread snow Sunday
  • Reinforcing cold next week

Scattered Snow Showers Turns To Steadier Snow Sunday…Upper level energy will continue to track across the region this weekend, setting off periods of snow showers and embedded heavier squalls (case in point this evening).  The strongest upper level energy will pass Sunday evening and the result should be a period of more widespread snow Sunday- especially in the afternoon and evening.  A light accumulation (1″-2″ potential) is possible.

The new work week will begin with early flurries Monday and then we’ll kick in a strong and gusty southwest wind Monday night, continuing into Tuesday.  We’ll turn milder briefly Tuesday, but strong winds will remain.  We’ll continue to monitor the Tuesday night-Wednesday morning period as some modeling wants to deliver a round of light snow with the reinforcing chill.  We’ll give it another round of model runs, but we may need to hit snow a little harder in the Tuesday night period.

Another disturbance will race through the region Thursday with snow showers and then we’ll eye the potential of a stronger system next weekend…

Upcoming 7-Day Precipitation Forecast:

  • Snowfall: 1″ – 3″
  • Rainfall:  0.00″ 
No Comments 7-Day Outlook, Forecast, snow, Unseasonably Cool Weather, Windy

Snow Returns To The Forecast…

Screen Shot 2017-01-25 at 9.34.13 PMHighlights:

  • Prolonged period of scattered snow showers
  • Much colder and windy
  • Winter returns

Scattered Snow Showers; Steadier Snow Sunday?  Let’s cut right to the point:  The January “thaw” is over.  Yes, it was nice while it lasted, but we all knew it couldn’t continue (right?)!  😉

A much colder brand of air will be with us as we close the work week and head into the weekend.  Additionally, upper level energy will keep periods of snow showers in our forecast.  A more vigorous piece of upper level energy will push southeast to close the weekend and this should create more widespread snow showers.  We’ll “enjoy” a colder and blustery weekend.

As the dawn of a new work week arrives, the weather will slowly improve.  Colder than normal conditions will remain, but we’ll return to dry conditions Monday.

Our next system will pass Tuesday with gusty winds and colder air for mid week, complete with a return of snow showers.

Looking for potential of “more significant” snow?  That may loom just past the current forecast period…

Upcoming 7-Day Precipitation Forecast:

  • Snowfall:  1″ – 2″
  • Rainfall:  0.00″
No Comments 7-Day Outlook, Forecast, snow, Unseasonably Cool Weather, Windy

Wednesday Morning Weather Brief…

Your complete weekly discussion can be found in the post below from last night, but here’s a recap of our current 7-day:

Screen Shot 2017-01-24 at 9.49.46 PMShowers will expand in overall coverage as we progress through the late morning hours, but shouldn’t amount to much (0.10″ for a few neighborhoods).  We return to a drier theme this afternoon.

10a forecast radar
10a forecast radar
11a forecast radar
11a forecast radar

A mild and windy afternoon is ahead, including gusts close to 40 MPH and highs in the lower-middle 50s.

Colder air will return tonight and remain in place through the second half of the work week, including the upcoming weekend.  Temperatures will grow cold enough Thursday morning for scattered snow showers.

Low-mid 30s Thursday morning
Low-mid 30s Thursday morning

Upper level energy will keep scattered snow showers going late week and on into the weekend.  Models can struggle on timing and specifics of the pieces of energy and we’ll keep an eye on things into the weekend.  Potential is present for a more “robust” clipper Sunday that could yield better coverage of steady snow showers.

gfs_namer_106_500_vort_ht_sLonger term, the GFS ensemble continues to show the cold growing deeper and stronger for the region as we progress into early February.  Winter is far from over.

gfs-ens_T2maMean_us_5

gfs-ens_T2maMean_us_8gfs-ens_T2maMean_us_10gfs-ens_T2maMean_us_12

No Comments Forecast Discussion, Forecast Models, Rain, snow, Unseasonably Cool Weather, Weather Rambles, Windy

One More Mild Day; Old Man Winter Is Knocking On The Door…

Screen Shot 2017-01-24 at 9.49.46 PMHighlights:

  • Hold on to your hats
  • Cold air returns
  • Extended period of scattered snow showers; squall potential

Changes Brewing…Wednesday will feature more of the same mild weather we’ve come to know and enjoy across the Mid West over the past couple of weeks.  Despite the mild air, a storm system will result in scattered showers for our hump day, along with very windy conditions.  Gusts of 40 MPH will be common across central IN.

Temperatures will fall late Wednesday and Old Man Winter is set to make up for lost time as we progress through the back half of the work week and on into the weekend.  In addition, fast-moving upper level energy will push southeast in the active northwest flow aloft.  Scattered snow showers will result, along with localized embedded heavier squalls.  It certainly won’t snow the entire time, but passing snow showers will be a good bet from time to time Thursday through Sunday.

Our wintry pattern will relax briefly early next week, but renewed cold air appears poised to blow into town the middle of next week.

Upcoming 7-Day Precipitation Forecast:

  • Snowfall: Dusting – 1″ (local 2″ amounts possible)
  • Rainfall: 0.10″ – 0.25″
1 Comment 7-Day Outlook, Arctic Cold, Forecast, Rain, snow, Unseasonably Cool Weather, Unseasonably Warm, Windy

Winter Returns…

January got off to a frigid start.  Remember this coast-to-coast cold, including sub-zero temperatures across central IN, during the first week of the month?

t0-1024x818After the past week to ten days, that frigid open to the month seems like forever ago!  The past 7-10 days has featured a significant January thaw, and temperatures now, MTD, are warmer than average across the Ohio Valley.  Warmest anomalies can be found across the southeast region.

conus_mtd_t2max_anom_2017That said, the pattern is shifting back to winter for the last week of the month and while the duration, longer-term, can be argued, the next 2-3 weeks appear to offer an opportunity to play “catch up” in both the snow and cold departments.  Note the developing eastern troughiness.  This will bring colder air back into the east as we close January and open February.  The GFS ensembles, courtesy of Tropicaltidbits.com, also develops an interesting “blocky” look towards the end of the period in Week 2.  Should this verify, it would lead to a better chance of the cold, active pattern locking in.

GEFS2wk12417
You’re corresponding temperature anomalies show the shift back to a colder than normal regime.

Days 2-6
Days 2-6
Days 4-8
Days 4-8
Days 6-10
Days 6-10
Days 12-16
Days 12-16

A fast northwest flow will also result in multiple “pieces” of energy rotating southeast and we’ll forecast a period of snow showers by mid and late week, continuing into the weekend.  There’s the chance of a stronger clipper system sometime in the Sunday-Tuesday time frame that we’ll have to keep a close eye on.  We want to stress that global modeling will struggle with the specifics (timing and strength) of these clipper systems until within a couple days.

Longer term, while confidence is high on the evolution to a cold, wintry regime through the medium range, the longevity and sustainability of the cold is in question.  For instance, by Day 10 (as the GFS continues to drill cold into the region), the European ensembles are much less impressed and suggest the overall transient pattern we’ve dealt with for the balance of the winter continues:

ecmwf-ens_z500aNorm_namer_11

ecmwf-ens_T850a_namer_11Thinking here at IndyWx.com believes the European is likely rushing the warmer central look.  Time will tell…

**We do note the NEW European Weeklies lock a period of cold into the east from mid-February through early March, including a stormy (snowy) look.  Will Old Man Winter have the final say?

Updated 7-day later this evening!

No Comments Ensemble Discussion, Forecast Discussion, Forecast Models, January Thaw, snow, Unseasonably Cool Weather, Unseasonably Warm, Weather Rambles