Category: 7-Day Outlook

Sep 11

Ready For A True Fall Feel?!

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Cooler Breezes Blowing…A strong cold front moved through the region last night.  You’ll notice a huge change in the air mass upon stepping out the door this morning with north winds blowing!  This will really be looked at as the first true fall cold front of the season with the coolest air in months blowing in for late week into the weekend.  Today will feature some breaks in the clouds late morning into the afternoon, but cold air advection will lead to continued mostly cloudy skies for the better part of the day.

Reinforcing Chilly Air…A reinforcing push of unseasonably chilly air will blow in Friday night into early Saturday.  A couple of light showers will be possible as the cold front passes and even cooler air will pour into the area Saturday (temperatures will remain in the 50s for a large portion of the day Saturday).

We’ll dry things out and introduce sunshine into your Sunday forecast.

Mid Week Cold Front…Another cold front will target a Tuesday evening/ Wednesday arrival (and departure :-)).  We think moisture will come at a premium with this next front so we don’t forecast any sort of heavy rain at this juncture.  Another push of cool air will move in behind the boundary.

7-Day Precipitation Forecast:

  • 7-Day Rainfall Forecast: 0.25″ – 0.50″
  • 7-Day Snowfall Forecast: 0.00″
Get ready for a MUCH cooler day! Highs today have already occurred shortly after mid night, and will struggle to top 67 later this afternoon in the city, itself. This is only the beginning of an extended stretch of cool air.

Get ready for a MUCH cooler day! Highs today have already occurred shortly after mid night, and will struggle to top 67 later this afternoon in the city, itself. This is only the beginning of an extended stretch of cool air.

Permanent link to this article: https://indywx.com/2563/

Sep 09

Increasing Storm Chances Mid Week; Turning Cool Late Week…

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Storms To Our Northwest This Morning…A complex of showers and embedded thunderstorms is moving into extreme northwest portions of the state this morning.  We have a very dry and stable air mass in place locally and these storms will weaken as they continue to sag southeast.  Most will remain rain-free today, but some light rain will be possible across northwestern and north-central portions of the state later this morning. (NOT a big deal).

Severe; Heavy Rain Threat Wednesday…A strong cold front will push into central Indiana Wednesday night. A warm and humid air mass will be in place and as the front moves through the region, widespread showers and thunderstorms will move over the area.  Locally heavy rainfall will be likely and embedded strong to severe thunderstorms will be possible.  Damaging wind and hail is our biggest concern, but a quick spin-up tornado can’t be ruled out.  We target Wednesday evening and nighttime for greatest chances of thunderstorms across our immediate area.

MUCH Cooler…An October-like air mass will filter into the region late week and as we go into the weekend.  A reinforcing shot of cool air will arrive Saturday with a passing shower possible.  Hope you’re ready for some true fall-like weather!

7-Day Precipitation Forecast:

  • 7-Day Rainfall Forecast: 1.50″ – 2″
  • 7-Day Snowfall Forecast: 0.00″

Hopefully you had a chance to see the last ‘super moon’ of the year last night.  John Salewicz and Brian Jessen caught the super moon in Zionsville (top) and Brownsburg (bottom).  Thanks, guys!

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Blow off clouds will move into central and northern portions of the state this morning as a weakening area of showers and thunderstorms pushes closer.

Blow off clouds will move into central and northern portions of the state this morning as a weakening area of showers and thunderstorms pushes closer.

Permanent link to this article: https://indywx.com/increasing-storm-chances-mid-week-turning-cool-late-week/

Sep 08

Busy Weather Week…

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Beautiful Open To The Work Week…Canadian high pressure will remain in control of our weather as we open up the new work week. Look for plentiful sunshine and seasonably cool temperatures.

Humidity Builds; Severe Chances Wednesday…Tuesday will be a transition day between the cooler, drier feel from the weekend and a briefly warmer and much more humid regime for mid week.

An isolated shower is possible Tuesday, but most communities will remain rain-free.  Our focus will remain on Wednesday as a severe weather episode is possible.  A strong autumn cold front will slice into a warm, humid, and unstable air mass Wednesday afternoon and strong to severe thunderstorms will erupt.  All modes of severe weather will be in play Wednesday and we target the afternoon into the evening for the best chances of severe.  Locally heavy rainfall is also a good bet.  We’ll have more details on timing and threats as we move forward.

Unseasonably Chilly…A late October-like air mass will invade as we wrap up the work week and head into the weekend.  Jackets and sweat shirts will be needed as temperatures fall to levels more than 15 degrees below normal.  Dry and crisp air will remain in place through the weekend.

7-Day Precipitation Forecast:

  • 7-Day Rainfall Forecast: 1.5″ – 2″
  • 7-Day Snowfall Forecast: 0.00″

Brian Jessen sent in this beautiful sunrise photo taken in Brownsburg early this morning.  Thanks, Brian!

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We're keeping a close eye on severe weather potential Wednesday.

We’re keeping a close eye on severe weather potential Wednesday.

Permanent link to this article: https://indywx.com/busy-weather-week-2/

Sep 07

Gearing Up For A Busy Weather Week…

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Beautiful Close To The Weekend…Canadian high pressure will supply plentiful sunshine and pleasantly cool temperatures as we close out the weekend.  Even though today is the first Sunday to the NFL season, we’d suggest finding a way to watch your favorite game outside.

Lots of sunshine and mild temperatures continue Monday.

Mid Week Heavy Rain And Storms…A warm front will move north through central Indiana Tuesday and supply an increasingly humid feel to our air mass.  As the warm front lifts north, a couple showers or isolated thunderstorms will be possible Tuesday afternoon/ evening.  Most communities should remain rain-free, however.

Much better chances of showers and thunderstorms will arrive Wednesday as an area of low pressure and associated strong cold front impact the state.  Some of the storms could reach severe levels and locally heavy rainfall is also a good bet.  Stay tuned.

Bring Out The Jackets…A big push of unseasonably chilly air will blow into town as we wrap up the work week and head into next weekend. Well below normal temperatures will combine with sunny skies to create a classic fall weekend.  May not be a bad idea to plan on a pot of chili at some point next weekend… Just sayin’!

7-Day Precipitation Forecast:

  • 7-Day Rainfall Forecast: 1.5″ – 2″
  • 7-Day Snowfall Forecast: 0.00″

A little rain didn’t dampen the spirit of those in the Zionsville Fall Festival parade Saturday.  Thanks to John Salewicz for the photo!

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Craving some truly chilly autumn air? Hang in there for late week. Well below normal temperatures (more like October levels) will blow into town later this week.

Permanent link to this article: https://indywx.com/gearing-up-for-a-busy-weather-week/

Sep 04

Hot And Humid Before A Big Weekend Cool Down…

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Watching Storms To Our Northwest This Morning…Today is a bit of a tricky forecast.  A complex of showers and thunderstorms is tracking through northern Illinois this morning and we’ll monitor this area of showers and storms in the event it begins to shift south of a due east track.  Additionally, outflow boundaries from this complex may trigger additional development of showers and thunderstorms later today.  Best rain/ storm chances should remain across northern Indiana, but we’ll keep an eye on things.  With all of that said, we think most folks here across central Indiana will remain rain-free, including lots of sunshine today.

Cold Front Ushers In A Much Cooler Weekend…A cold front will move through the region early Saturday morning. Ahead of this boundary, a broken line of strong to severe thunderstorms will likely blow through central Indiana Friday night.  We continue to fine tune timing, but thinking at this point highlights 8p to 1a Friday night and Saturday morning (we’ll “tighten” that time line up later tonight).

A few left over showers are possible into Saturday along with a MUCH cooler, fall-like, feel that will continue into next week!

Big Blast Of Cool Air Mid Month…Good model agreement remains on a big blast of cool air blowing in later next week.  Once again, rain and storms will remain in the forecast as the strong cold front blows through.  Behind the boundary, some truly chilly air would arrive… More details to come as we move forward, but it may be a good idea to go ahead and pull those jackets and sweaters out if you haven’t already.

7-Day Precipitation Forecast:

  • 7-Day Rainfall Forecast: 0.50″ – 1.00″
  • 7-Day Snowfall Forecast: 0.00″
GEFS temperature anomalies over the next two weeks show the 1-2 punch of cool air coming. Time to think about pulling out those jackets!

GEFS temperature anomalies over the next two weeks show the 1-2 punch of cool air coming. Time to think about pulling out those jackets!

Permanent link to this article: https://indywx.com/hot-and-humid-before-a-big-weekend-cool-down/