Dangerous Heat Continues This Evening

Oppressive heat and humidity continue this evening with heat indices in the 100 to 110 range until sunset… even some spots registering 115 to 118!

You’ll continue to need to limit outdoor exposure and/or hydrate constantly to protect yourself from dangerous conditions.


HI METRO HI DMA HEAT INDEX TONIGHT

After a muggy Monday, hot but less humid conditions arrive Tuesday… though highs daily near 90 degrees until more widespread rain and storm coverage arrives late week into the weekend.

HEAT INDEX NEXT 4 DAYS

We continue to monitor storms around Chicagoland as these should gradually drift southeastward to impact northwest Indiana by 8pm.

TEMPS SPC

Some of these may produce severe wind gusts and definitely deliver torrential rain/frequent lightning.  It’s uncertain how far south they’ll travel tonight, but we continue to heavy storms in play for the Indy metro and points south.  But it should be noted that north and northwest of Indy will have the greatest chance of storms.

10PM MON 6AM

High Heat & High Humidity

The National Weather Service extended the Heat Advisory through Sunday evening, due to the high temperatures and high humidity that will be in play again Sunday.

HEAT ADVISORY

Temperatures have climbed into the upper 80s and low 90s today, allowing heat indices to soar into the upper 90s and triple digits.  The heat index is a gauge of how it feels outside, similar to the wind chill value.

It will stay warm and muggy this evening with heat indices remaining in the low 90s through 10pm.  Temperatures will only fall into the mid 70s.

HEAT INDEX

Sunday will be another scorcher with highs back in the low 90s and heat indices in the triple digits.  Dewpoints will be in the mid 70s Sunday afternoon, helping create the “air you can wear”.

MUGGY METER

Make sure to drink plenty of water Sunday, avoid strenuous outdoor activities and wear light, loose fitting clothing.  There is also a chance of a few thunderstorms late Sunday afternoon, which would help cool things off for a bit.

A break from the heat will return by Tuesday.

 

Hot Dome Arrives

Welcome to the beginning of a multi-day stretch of stuffy conditions.  Heat indices already nearing 100 degrees in Central Indiana and most top out at that mark for several hours this afternoon.

HEAT INDEX 4PM HI

The Heat Advisory technically begins Friday at 10am and lasts until Saturday at 8pm.  But it will be plenty uncomfortable prior and after that time frame.

FRI HI HEAT ADVISORY

While heat steals the headlines, and rightfully so, remember we’ll dealing with locally heavy storms Friday into Sunday afternoon.

RADAR

We’re monitoring a storm complex over Lake Michigan and it’s possible by late day it could approach the far northern and northeastern portions of the WTHR viewing area… including cities like Peru, Marion and possibly as far south as Kokomo.

friday 5pm

This places Central Indiana in the firing line Friday into the weekend.  While there’s a daily storm chance there will also plenty ample dry time to allow highs to jump into the 90s with dangerous heat indices in the 100 to 110 range.

SPC FRIDAY

HEAT INDEX WEEKEND

Stay safe and take the heat seriously this weekend friends – Sean Ash

Heat Advisory Issued For Central Indiana

Late day heat indices across Central Indiana have hit 90 degrees and higher… with the exception of rain-cooled Putnam County.  Greencastle’s experiencing one of the isolated showers on Live Doppler 13 Radar.

temps current heat index

We don’t expect much coverage this evening or tonight, but rain/storm chances remain in the forecast each day into Monday afternoon.

The time for talk is just about over, and we’ve been talking about the impending heat wave since last week.

HEAT ADVISORY

Though our forecast hasn’t changed much since then… the National Weather Service in Indianapolis made it somewhat official today with the issuance of Heat Advisory to begin for most Friday and carryover into Saturday.

However it should be noted that heat and humidity will be uncomfortable Thursday too and deserves your attention to limit outdoor activity.

NORTH HEAT INDEX

You can already see the oppressive triple figure heat indices in the central U.S. where a large chunk of real estate is under an Excessive Heat Warning.  As expected these continue to expand eastward with the building hot dome.

HOT DOME FRIDAY MORNING

We noted in the forecast Tuesday there would be “ridge runners” or clusters of rain and heavy storms building/tracking on the edge of the hottest air.  We’ll need to watch for these locally heavy rain-makers Thursday and again Friday morning as we’ll be close to the “lid” that caps the atmosphere from storms.

HEAT WARNINGS HEAT ADVISORY DMA

Anyway you slice it conditions for Brickyard 400 will be less than ideal.  If you’re heading to IMS either Friday, Saturday or Sunday you’re going to need to take the heat seriously.

Latest indications suggest the high heat/humidity combo lasts into Monday along with scattered heavy storms.  Check back for updates – Sean Ash

THURSDAY HI FRIDAY HI SATURDAY HI

PLANNER

HEAT INDEX BARS 7DAY

Possibly Hottest Stretch Of Days In Indianapolis Since 2012

You can definitely feel the difference the sun is making today in Central Indiana with temperatures returning to the mid and upper 80s and 10 to 15 degrees warm than 24 hours ago.

TEMPS 24HR CHANGE INDIANS

It will be a warm evening at Victory Field for Indianapolis Indians baseball and only a slight storm chance heading into tonight.

7PM TODAY MIDNIGHT 5AM

We’re monitoring a storm complex in southern Iowa and widely scattered storms across Illinois.  These should stay west of the metro area but could impact western and southwestern Indiana late evening and tonight.

Muggy temperatures in the 70s with a light wind leads to more areas of dense fog Wednesday morning.

TONIGHT WEDNESDAY

Temperatures rapidly jump into the 80s by noon Wednesday and near 90 degrees to finish the day with a chance of storms.

HOT DOME 1

There will be considerably more dry weather than storms the next 24 hours, but we’re certainly not ruling out locally heavy storms the next few days with Central Indiana being on the edge of the “hot dome” centered in the Central U.S.

HOT DOME 2

In the core of the “hot dome” the atmosphere has a lid over it to suppress storm development… much like the lid over a boiling pot of water on the stove.  But around the “lid” storms erupt, like steam from the boiling pot of water, in highly unstable, moist air to deliver quite a punch as they track east-southeast.  We call these storms Ridge Riders as they go up and over the center of upper ridging in the jet stream.

HEAT HEAT 2

Heat Warnings/Watches/Advisories to our west likely expand into Central Indiana with expected heat indices peaking out in the 105 to 110 range Friday into Sunday afternoon.

THURSDAY FRIDAY SATURDAY SUNDAY HEAT INDEX CHART

If our forecast highs verify… it would mark the first time since the summer of 2012 Indianapolis has had four consecutive days of highs at/above 93 degrees.

7DAY

This will make it one of the hottest Brickyard 400 weekends ever in Indy and demands the attention of anyone expecting to spends long spells outside.  Stay tuned for updates and thanks for reading the forecast – Sean Ash

Foggy Start, Humid Day

We have widespread fog this morning. In some cases, visibility will be near zero, especially in counties just outside of Indianapolis. The wet ground and lack of a breeze is the perfect setup for a foggy and sticky start to our day. It will be warm and muggy, with highs in the middle and upper 80s.  Although a brief storm could pop up, really we’re looking at a dry day. It will be warm but dry for the Indianapolis Indians game tonight at Victory Field.

DaypartIndians

Increasing heat will be the story for most of the week.  We will be near 90 on Wednesday, with a storm chance.  Highs reach the lower and middle 90s, with feels like temperatures topping 100 Thursday through Sunday.  This will be the hottest air of the year to move into Indiana and makes for a very hot and sticky weekend for all the activities surrounding the Brickyard 400 at the Indianapolis Motor Speedway.

There will be a few complexes of storms to track too.  We will keep you updated on the timing.

extended

Record Rain Today

It was quite the wet and stormy Monday in Central Indiana with the bulk of rainfall occurring in a four to five time period.  Widespread 1″ to 3″ rain amounts fell with some areas seeing 4″ to nearly 6″.

The Indianapolis International Airport finished with a daily record rainfall for this date with 2.71″ so far.  Again that mainly occurred in fours and was more than the rest of the month combined!

WETTEST MONTHS

This balloons the summer total for the city over 12″.  This comes on the heels of the wettest month on record last July and one of the wettest summers on record last year too.

WETTEST SUMMERS

TEMPS OHV TEMPS

Our local atmosphere is fairly worked-over and this should make it tough for new development in Central Indiana.  In fact we’ll likely finish with some welcomed sunshine.

We are going to monitor for storm development in Central Illinois where it’s much warmer and more unstable.  Storms that initiate there would likely target southwestern Indiana but deserves monitoring given the saturated ground.

INDIANS TONIGHT HIGHS WEDNESDAY

After morning dew and mist diminishes… you’ll be able to cut away on the yard tomorrow and have ample time later this week.

CUT CAST

However we do expect additional storm clusters between Tuesday night and Friday morning in the Ohio Valley/Great Lakes, but it’s impossible to pinpoint timing and location.

Hot air and dangerous heat indices of 105 to 110 become the headline heading into Brickyard 400 weekend.  Stay safe and check back – Sean Ash

7DAY

 

More Rain Possible this Afternoon

After a soggy morning across Central Indiana, we’re looking for the re-development of showers and thunderstorms this afternoon and evening.

Rain totals this morning were in excess of 2 to even 3 inches of rain in some locations.  Indianapolis set a new daily rain record today with 2.69″ of rain falling so far this morning.  That breaks the previous record of 2.61″ of rain from 1996.

monday rain estimates

Highs will reach the mid to upper 80s today with scattered showers and storms developing for the late afternoon and evening.  The day doesn’t look to be a washout, but we’ll see hit or miss storms.  Any area of rain that develops will once again have the potential to produce flooding considering the rain we saw this morning, and the amount of moisture possible for the rest of the day.

monday today

An isolated storm may be strong or severe.

monday severe storms

Tonight temps fall into the low 70s, and fog will be likely to start your Tuesday morning commute.

The forecast should be mainly dry tomorrow and Wednesday, but it turns hot and humid in the 7 day forecast with heat indices well above the 100 degree mark.  We’ll be watching the numbers closely as we go later into the week and the weekend.

monday 7 day forecast

Thunderstorm Watch Until 2am Northwestern Indiana

Severe Thunderstorm Watch for northwest Indiana until 2am includes Benton, Cass and White counties.  Widely scattered storms in northern Illinois will gradually build east-southeast and may ultimately arrive in Central Indiana by 4-5am.

WATCH THREATS TONIGHT

While widespread severe weather isn’t expecting, locally severe wind or a brief tornado is possible farther the next few hours.  Otherwise heavy rain, frequent lightning and gusty wind can be expected with most storms tonight into the Monday morning rush hour.

1AM 5AM

It will be much warmer and more humid tonight and that will be the theme this week.  Several bouts with storm clusters can be expected the next several days.

8AM MORNING MONDY AFTERNOON

This is due to Central Indiana being on the edge of the “hot dome” in the Central U.S.  Timing and track are highly uncertain at this time, but periods of heavy storms are possible before the hot dome slides farther east to put a “lid” over Central Indiana and deliver likely the hottest air of the year.

7day

Highs late week into the weekend climb into the mid and upper 90s with heat indices in the 100s.  Stay tuned and stay safe – Sean Ash

Locally Heavy Storms Next 24 Hours

One wave of storms diminished over the Indy metro area but more storms remain in play this evening and overnight.  Although heavy rain and lightning are the most likely storm threats, localized severe wind gusts are possible in stronger storms the next 24 hours.

RADAR RADAR 2

Although heavy rain and lightning are the most likely storm threats, localized severe wind gusts are possible in stronger storms the next 24 hours.

SPC SPC 2

Scattered heavy storms dot Central Indiana Monday and it’s fair game for a storm from sunrise to sunset.  Some storms tomorrow may be severe and we’ll keep storm chances in play nearly everyday this week.

THREATS PLANNER monday

This is due to Central Indiana being on the edge of the “hot dome” in the Central U.S.  Timing and track are highly uncertain at this time, but several bouts of heavy storms are possible before the hot dome slides farther east to put a “lid” over Central Indiana and deliver likely the hottest air of the year.

JET STREAM 7day

Highs late week into the weekend climb into the mid and upper 90s with heat indices in the 100s.  Stay tuned and stay safe – Sean Ash