The Daily Parker

Politics, Weather, Photography, and the Dog

Whew

After a high temperature of 33°C yesterday (the 7th in a row above 32°C), a much-anticipated cold front came through overnight (as predicted). It's now 18°C. But:

Indications are that the air mass will begin to moderate Sunday, with another warmer-than-normal period a good part of next week. This time around, daily highs should approach the 27°C mark.

Rain looks to be sparse at least until the middle of next week.

That last bit is important, because we're having a drought. But at least it's delightfully cool.

Heat to break tonight; millions rejoice

Chicago is having its 7th consecutive day of 32°C-plus heat, including 5 straight days above 33°C, a new record for this late in the season. Fortunately, a cold front is marching across the prairie and promises to bring a 15°C temperature drop overnight and high temperatures in the 20s for the rest of the week.

We didn't have a horrible summer here. So we're not thrilled that the crisp, cool days of autumn have been delayed a full month. But tomorrow we can open our windows again.

Welcome to summer

Chicago temperatures stayed below 32°C for almost nine months: September 7th all the way until last Sunday, June 4th. Then we had absolutely gorgeous weather during the last work week, which all ended on Saturday when the temperature hit 32°C for the first of (so far) three times. Our forecast calls for continued hot and shitty weather through at least Thursday.

Hey, it happens every year. And our cool weather was pretty good while it lasted.

The bad part is that the temperature killed my Fitbit numbers this weekend. I had the worst day since December 23rd, and that poor performance was because I spent 8 hours on an airplane. Fingers crossed that yesterday's 7,044 steps remains the worst of the year.

Odd lake cold front interface

A high-pressure dome of hot, humid air is parked over the middle of the U.S. right now, driving temperatures up and heat indices up higher. But here in downtown Chicago, something weird happened this afternoon.

Around 1pm, a line of thunderstorms came down Lake Michigan from the north. Just before then, it was 33°C at O'Hare with a heat index close to 38°C. Then, within fifteen minutes, this happened:

Note the green lin snaking from Gary, Ind., in the southeast around to Crystal Lake, Ill., in the northwest. That's an interface between cool air coming off the lake and the hot, muggy air surrounding it. And it's still raining there; here's the radar image from 3:50:

So right now, it's 25°C in Gary, 24°C in Lansing, Ill. (near Gary), and 33°C in Joliet (near the + sign on the radar images).

Weird. And welcome, at least in the Loop. But the temperature is climbing again as the thunderstorms make their way deeper into Indiana. And tomorrow's forecast predicts more humid heat. Bleah.

Here comes the heat

Much of the central U.S. is bracing for the worst heat wave since 2013:

Temperatures [in Chicago] Thursday are expected to reach 34°C and 37°C on Friday, with humidity levels creating a heat index that feels more like 38-42°C, according to Kevin Donofrio, meteorologist with the National Weather Service.

The heat wave will continue through the weekend, with temperatures only a few digits lower during the day Saturday and Sunday and remaining around 25°C and even 28-29°C overnight, Donofrio said. Temperatures are expected to drop early next week.

It's already starting. I'm heading to Wrigley Field in a couple of hours, and the temperature has already hit 30°C at O'Hare with a heat index of 31.6°C.

WGN has an informative graphic explaining why this is happening.

Chicago weather sometimes works

We had perfect weather this weekend, including for last night's performance of Mahler's 2nd, and it's still pretty epic, which is why I haven't posted a lot. Except for a brief interval to do a stupid task in my office, and after catching up on Game of Thrones, it's time to take a walk. Not sure when I'll be back.

I haven't hit 25,000 steps since March 8th, and I've only hit 30,000 steps once. I don't think I'll hit either today, but if I do, I'll blog about it.