Category: Summer

Early Fall Feel Continues

July 2014 is already much cooler than normal month-to-date across the Ohio Valley and Mid West region. With a continued much cooler than normal pattern in place through month’s end,…

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Permanent link to this article: https://indywx.com/2014/07/29/early-fall-feel-continues/

Autumn Feel…

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A big upper low is located across the eastern Great Lakes.  The circulation around this UL feature will result in an unseasonably cool, fall-like, feel across our neck of the woods the next couple days.  On that note, the entire forecast period will remain cooler than normal.  Sky conditions both today and Tuesday will vary depending on your location.  Overall, expect more cloudiness across central and eastern parts of the state compared to the west.  Additionally, scattered light showers will be possible this afternoon- more likely east.  We’ll repeat this forecast Tuesday, though coverage of showers will be a bit more widespread (still not a huge deal).

The overall theme through this forecast period will be a cooler than average one and a bit unsettled.  We’ll remain in a northwest flow regime and weak disturbances will move through the area from time to time, creating a slightly better shower chance each time they rotate through the area.  Looking at the temperature forecast the upcoming week sure will have many scratching their head whether or not we’re heading into August or September?!  The cool summer of 2014 rolls along…

Permanent link to this article: https://indywx.com/2014/07/28/autumn-feel/

Sunday Morning Weather Rambles…

Good morning and happy race day Indy! This morning’s visible satellite shows our cold front off to the northwest still. The pre-dawn storms have exited to the southeast, but we…

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Permanent link to this article: https://indywx.com/2014/07/27/sunday-morning-weather-rambles/

Ingredients In Place For A Significant Severe Weather Episode.

Quick update this morning, but a more extensive discussion will hit the site later this afternoon/ evening.

An initial round of strong to severe thunderstorms will move through central Indiana this morning as a warm front crosses the state. After morning storms rumble through central Indiana the majority of the day will be rain-free and turn downright hot and muggy.  An oppressive feel to the air will develop this afternoon as dew points rise into the 70s.  We’ll then target another (more widespread and intense) outbreak of severe weather late tonight into the wee morning hours Sunday.

The Storm Prediction Center has placed the region under a moderate risk of severe weather today:

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The ingredients are in place for a significant severe weather episode later tonight…

Big picture overview:

An autumn-like cold front will slice into a very warm, humid, and unstable air mass Sunday.  Individual disturbances out ahead of the cold front will combine with ingredients listed below to potentially lead to a rather widespread and dangerous severe weather outbreak tonight.

Additionally, short term model data forecasts…

  • CAPE (Convective Available Potential Energy and an ingredient of what helps fuel a thunderstorm) to reach 4000-5000 J/kg. Anything over 2000 is enough to lead to strong storms should other factors be in place.
  • Dew points to climb into the lower and middle 70s.
  • Precipitable water to reach 2.5″ (suggests a flash flood threat and local microburst potential)

The greatest concern has to do with the potential of a widespread damaging wind event late tonight into the wee morning hours Sunday, but concern is also present that a couple of super cells could develop in advance of the more widespread complex of storms.  Within these super cells, an opportunity is there for large hail and a tornado potential and we’ll closely monitor this as well.

Much more later this afternoon!

Permanent link to this article: https://indywx.com/2014/07/26/ingredients-in-place-for-a-significant-severe-weather-episode/

Stormy Weekend Before Another Push Of Autumn Weather…

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We’re keeping a close eye on showers and thunderstorms to our northwest (across Iowa and Minnesota) this morning as these will continue to drop southeast with time today.  We know we’ll see clouds increase locally from this complex of storms and some of the latest short-term model data brings in light rain during the afternoon as the complex drops southeast into IL and IN- though in a much weaker state.  We’ll include mention of an afternoon shower due to this.

As we move into the weekend concern remains around the possibility of multiple thunderstorm complexes impacting our area.  The Storm Prediction Center includes us in a Slight Risk of severe weather Saturday and Sunday, including the chance of some storms producing a damaging wind and hail threat.  We target Saturday morning and again Saturday night and Sunday for the best chances of thunderstorm complexes.  Saturday night/ Sunday morning may provide the greatest risk of severe storms, and we’ll continue to monitor.  We also note high precipitable water values present this weekend suggesting the threat of some localized flooding where storms train.  Widespread 1″ rainfall can be expected this weekend, but we do caution some areas will see locally heavier totals in excess of 2″.

A much cooler, drier and fall-like feel is still slated to blow into town early next week, setting the stage for an incredible close to July and open to August!

Permanent link to this article: https://indywx.com/2014/07/25/stormy-weekend-before-another-push-of-autumn-weather/

Unseasonably Cool Close To The Work Week; Stormy Weekend Awaits…

Thr. Fri. Sat. Sun. Mon. Tue. Wed.               56/ 77 54/ 80 66/ 88 67/ 87 56/ 69 51/ 72 49/ 77  – –…

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Permanent link to this article: https://indywx.com/2014/07/24/unseasonably-cool-close-to-the-work-week-stormy-weekend-awaits/

One-Two Punch Of Cool Air; Unsettled Weekend

Wed. Thr. Fri. Sat. Sun. Mon. Tue.               63/ 79 56/ 77 54/ 79 65/ 87  67/ 88 59/ 67 52/ 69  0.10″-0.25″ –…

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Permanent link to this article: https://indywx.com/2014/07/23/one-two-punch-of-cool-air-unsettled-weekend/

Early Wednesday Rumbles?

We’re not excited about prospects of needed rainfall or widespread thunderstorm activity Wednesday. That said, the latest HRRR forecast radar, valid 5am Wednesday, suggests a broken line of thunderstorms may…

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Permanent link to this article: https://indywx.com/2014/07/22/early-wednesday-rumbles/

Hot And Humid Day On Tap; Watching Late Night Storms…

Tue. Wed. Thr. Fri. Sat. Sun. Mon.               66/ 89 63/ 79 56/ 78 54/ 80 65/ 87 68/ 86 54/ 74  – –…

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Permanent link to this article: https://indywx.com/2014/07/22/hot-and-humid-day-on-tap-watching-late-night-storms/

Summer Warmth Quickly Fades To A Much Cooler Pattern (Again)…

The overall weather pattern over the course of the upcoming 7-10 days will be one that we’ve grown quite accustomed to.  In the midst of a warmer and more humid couple days (back to seasonal and slightly above normal levels), confidence continues to grow on a pattern that will feature well below normal temperatures as we put a wrap on July.

Here are a couple of maps we created this evening depicting the upper air pattern week 1 and week 2.  We’re eyeing a one-two punch of cool, fall-ish, air that will have things feeling “out of season” yet again.

UAPattern723UAPattern730

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A cold front will pass through our neck of the woods Wednesday with scattered showers and thunderstorms.  We’re not looking at heavy rain totals, but potential is there for a quick 0.25″-0.75″ as the front drops through.  A couple of strong to severe storms are possible, especially south and east of the city Wednesday afternoon as this front passes.

Then we shift our eyes to an unsettled weekend.  While it won’t rain the entire time, showers and thunderstorms will be in our forecast over the weekend in front of a reinforcing (stronger) blast of cool air that will blow in early next week.  Again, rain potential isn’t terribly impressive, but we’ll take what we can get (things are turning mighty dry out there as we’re down more than 2″  MTD).  The way we see things now would suggest 0.50″-1″ type rains over the weekend.

Once to next week “cool” is the word.  Needless to say, we’re going to wrap up July with a feel that’s very much like autumn.  In fact, it wouldn’t surprise us if we set a couple records for the cool air next week.  More on that and the rain chances ahead a bit later.  Have a fantastic evening!

Permanent link to this article: https://indywx.com/2014/07/21/summer-warmth-quickly-fades-to-a-much-cooler-pattern-again/

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