Wet Saturday On Deck…

It’s been a nice Friday across central IN, including filtered sunshine and lower humidity levels.  Unfortunately, the pleasant weather won’t last as we welcome in the weekend.

A warm front will lift north late tonight and should help moisten things up enough to allow rain to reach the surface across most of central IN during the overnight into the predawn Saturday.

hrrr_ref_indy_15Steady rain and embedded thunderstorms will continue through the morning hours and into the afternoon.

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hires_ref_indy_26Eventually, a cold front will sweep through the state Saturday night and help “slosh” the widespread rain shield east of the region.  By the time this happens, we expect widespread rainfall totals between 0.50″ and 1.00″ across central IN (with locally heavier totals).

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KIND_2016060309_tqpfCooler weather will push in this weekend and continue into early and middle parts of next week.  While the widespread rain will come to an end, upper level energy will remain and could help ignite scattered showers at times (particularly during the afternoon and evening hours) into early next week.

Drier Close To The Work Week; Unsettled, Cooler Weekend…

Screen Shot 2016-06-01 at 5.37.43 PMHighlights:

  • Drier close to the work week
  • Strong storm chance Saturday PM
  • Unsettled and cooler early next week

Turning Cooler Over The Weekend…A cold front tapped into available moisture and resulted in locally heavy rain Wednesday afternoon and evening.  In some spots, as much as 2″ of rain fell in a very short period of time.  We’ll begin to dry things out to wrap up the work week, along with partly cloudy and less humid conditions.

An upper trough will dig into the Ohio Valley Saturday and could help spark strong to potentially severe thunderstorms for portions of the region Saturday afternoon and evening.  We’ll keep a close eye on things over the next day or two.

We’ll turn significantly cooler over the weekend into early next week.  With plenty of upper level energy around the region, we’ll have to mention the chance of a scattered shower into early next week. Dry conditions return by the middle of next week.

Upcoming 7-Day Precipitation Forecast:

  • Snowfall: 0.00″
  • Rainfall: 0.50″-0.75″

Scattered PM Strong Storms…

A cold front will slice into a warm and very humid air mass this afternoon.  Accordingly, we anticipate scattered strong storms to develop after the lunchtime hour, continuing into the early evening.

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2As precipitable water values climb to around 2″, locally heavy rainfall will accompany any storms that develop.

3We caution that the key word here is “scattered.”  There will be “haves and have nots” when it comes to rainfall totals by tonight.  Some neighborhoods may receive less than 0.10″ while others receive over 1″.

As we look ahead, active times continue going into the weekend, with the potential of strong thunderstorms Saturday as an anomalous trough digs southeast into the Ohio Valley.

D4Unseasonably cool air will follow for the mid range.

gfs-ens_T2maMean_us_4A fresh 7-day will be up later today!  Have a nice Wednesday, friends.

Busy Week Ahead Turns Active In The Weather Department…

After a damp and chilly open to the weekend, drier air began to infiltrate the region this afternoon and led to a brighter/ warmer finish to the day.  We’ll add more sunshine and tack on a few degrees to the afternoon high on Sunday.  It’ll be a phenomenal weather day across central IN, thanks to high pressure.  Get out and enjoy it!

HighPDry and sunny weather will greet us to open the new work week, along with temperatures that will approach the 80 degree mark by Tuesday.  Have yard work to get caught up on?  Take advantage of the early week weather.

Things will begin to change towards an unsettled regime as early as Tuesday evening/ Wednesday as the region gets into an increasingly moist southwesterly air flow.

SWFlowAs such, we’ll increase the chances of showers and thunderstorms in our mid week forecast.  It’ll also be a much more humid feel of things (really for the first time this year) as surface dew points surge into the upper 60s to lower 70s.  (In other words, “oppressive”).

DPFactor in PWATs (precipitable water values) zooming to 1.5″-1.8″ and the threat is there for localized heavy downpours around mid week.

gfs_pwat_noram2_19Additionally, we also note the Storm Prediction Center (SPC) has placed western sections of our forecast area in a risk of severe weather Wednesday.  We’ll keep a close eye on things.

day5probAs we progress into the late week period and on into the long holiday/ race weekend, a warm, humid, and unsettled time of things is expected to continue.  It’s tough to pinpoint specifics from this distance, but just keep note of the threat of thunderstorms into and through the upcoming busy weekend, along with warm (highs in the lower to middle 80s; lows in the upper 60s) and humid conditions.

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Monday Evening Update…

Through the first half of May, temperatures are running more than 2 degrees below average at IND.  We’re in the middle of a rather large area of below normal temperatures from the SW into the NE region.

ncep_cfsr_noram_t2m_anomWe’ll remain below average through the upcoming week, but temperatures will begin to moderate over the weekend into next week.

KEYE_2016051612_nxa_384In general, we agree with the temperature anomalies above, courtesy of the GEFS.  As noted, the cool start to the period will moderate and turn warmer next week.  Unfortunately, that warmer trend won’t last and it’s likely we trend cooler around the Memorial Day weekend.

In the shorter range, light rain will spread into central IN late tonight into Tuesday.  Rainfall amounts won’t be significant, and should be generally around 0.25″, or less.

1Drier air is still expected for mid week, as high pressure builds into the region.  Needed sunshine and pleasant conditions can be expected.

2As we look forward to the weekend, modeling is still at odds with one another.  The European remains consistent on the idea of heavy rain while the GFS remains consistent on a drier solution (rain, but much lighter amounts).  That said, we note the consensus of the GFS ensemble members is more aggressive and reflects the idea of the European.  We’ll remain firm on the idea of potentially heavy rain building in Friday into Saturday.

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