Good-bye 80’s (for now)

As the saying goes, all good things must come to an end.  Same with our stretch of warm and sunny weather.  For the last week, we’ve had highs of at least 75, with the last 5 days bringing highs in the low 80’s (and no mugginess!  That’s key in my book).  That all changes tonight.

A strong cold front worked through the area, and dropped temperatures in an impressive fashion.  Ahead of the front, we had temperatures in the 80’s with a nice light breeze. (Images at 3 p.m.).

Stateline temperatures at 3 pm Stateline winds at 3 pm

The front then works through Lake Geneva and southern Wisconsin.  Notice the drop off in temperature (23 degrees within 3 hours for Lake Geneva!) and the change in wind direction (key for a front- the wind changing direction to as ushers in a different air mass). (Images at 6 p.m.)

Stateline temperatures at 6 pm Stateline winds at 6 pm

Finally, the front hits the Stateline.  Temperatures plummet into the 60’s with the wind picking up and changing direction. (Images at 8 p.m.)

temp 3 wind 3

Here is the temperature trend in profile.  You can see the definite 16 degree drop off after the front worked through (and it’s neat how the 12 trend is almost symmetrical for the day).

Temperature trend at the Rockford airport, from 9 a.m. to 8 p.m.

Monday’s temperature trend at the Rockford airport

Better yet, check out how the front brought different results for Chicago and Milwaukee (O’Hare measured a 20 degree drop in ONE HOUR!  Wow!).  Talk about abrupt changes!

Temperature trend at Chicago's O'Hare International Airport

Temperature trend at Chicago’s O’Hare International Airport

Temperature trend at Milwaukee's General Mitchell International Airport

Temperature trend at Milwaukee’s General Mitchell International Airport

So how will this new week play out?  Today’s front has some lasting effects, as we’ll only see the low 70’s for highs at the warmest this week.  This week will be a roller coaster, with warm-ups for Wednesday and Thursday, then more drops late in the week to the 60’s and 50’s.  Much needed rain is coming, too, on Thursday.  Hold on!

-Alex Kirchner


Posted under weather

This post was written by Alex Kirchner on September 29, 2014

Going For Two

What a week we’ve had!  Sunshine and warmth every day, which each day a little warmer than the last.

Highs slowly climbed into the lower 80's this week thanks to sunny, quiet weather

Highs slowly climbed into the lower 80’s this week thanks to sunny, quiet weather

What made this Friday in particular so nice, was that the weather didn’t take a turn for the worst, like we’ve had lately.  Counting today, 3 out of the last 5 Fridays have had horrible weather for outdoor events: thunderstorms, lightning, wind, and bone-chilling dampness and cold.

Stormy and sometimes cold weather impacted high school football games 3 weeks in a row, in addition to impacting other outdoor events

Stormy and sometimes cold weather impacted high school football games 3 weeks in a row, in addition to impacting other outdoor events

There were unfortunate impacts on our typical Friday night events, with lightning and rain delays and cancellations for Friday night high school football, and the Rockford City Market was cancelled two weeks in a row because of thunderstorms and unpleasant cold and damp weather.  These, of course, are wise decisions to keep everyone safe, but they do put a damper on the last few nice Fridays before winter sets in. I think that’s why today’s “2-point conversion” (or 2-Friday conversion) felt a little extra nice- we had splendid weather for Friday night under the lights in a row.

Valid Saturday, Sep. 27 to Sunday, Sep. 28

Valid Saturday, Sep. 27 to Sunday, Sep. 28

Looking ahead, make sure you get outdoors and enjoy the gorgeous weather this weekend!  80’s, sunshine, and low humidity should add up for a beautiful weekend.  Enjoy!

-Alex Kirchner


Posted under event, warm up, weather

This post was written by Alex Kirchner on September 26, 2014

Wash, Rinse, Repeat

Now that we’ve officially entered the first week of Fall, we’ve all got sweaters, boots, apple cider donuts and football on our minds, right?


You may want to replace those boots with sandals and the apple cider with  lemonade. Feel free to keep the football thoughts though 😉 Our first week of fall is actually taking steps toward more summer-like weather. Did you enjoy the weather yesterday? Plenty of sunshine, calm winds, upper 60’s. Get used to it!
9-23 blog1

Wash, Rinse, Repeat. That’s the forecast through the rest of the week. BUT before you throw in the soap….
9-23 blog 2


Turn up the heat.

We’ll see high pressure continue to bring us sunshine this week, as well as calm winds. We could pick up a few clouds toward the end of the week due to a disturbance to our west, however high pressure helps to keep rain chances away. In addition to the sunny sky and light wind, we’ll see temperatures climb.
Today, temperatures top out in the low 70’s. By the end of the week, we’ll be looking at temperatures in the mid to upper 70’s.

Happy Fall, all!

-Morgan Kolkmeyer


Posted under science, sunlight, warm up, weather

This post was written by Morgan Kolkmeyer on September 23, 2014

Wrapping Up Summer

We are back in business!  The 13 Weather Blog has been on hiatus for a little while, but you should start to see regular posts on here again.  I promise to not make them as wordy as this one will be, either!

You’ve probably noticed that there are some new faces here at the 13 Weather Authority.  Here’s a quick little introduction for myself, in case you missed it: I’m Chief Meteorologist Alex Kirchner.  I’m originally from Racine, WI, and have spent the majority of my life living in the Midwest.  Before coming to Rockford, I was the morning meteorologist at KCWY in Casper, WY and at WXOW in La Crosse, WI. I’m a Certified Broadcast Meteorologist, as awarded by the American Meteorological Society. This means my graphical content, my presentation skills, and my explanation of the weather and the science behind it has been tested and considered high quality by top meteorologists from around the nation.

While the faces have changed, who we are as a weather team has not: The 13 Weather Authority.  We will always strive to be that, day in and day out- the authority you turn to for all things weather, good or bad.

That’s enough out of me for now, so let’s chat about some weather, shall we?

The calendar is almost to the Autumn season, so we are doing a little countdown for the last few days of summer, and providing little tidbits about Summer 2014.  This entry will cover numbers 5 and 4:

Autumn 2014 starts Monday night

Autumn 2014 starts Monday night

It has been an interesting one so far.  At times, the weather has felt more like an extended spring, with very few days of hot, muggy weather.  We still had a handful of typical summer soakers to hit the Stateline, however.

4 days saw rainfall over 1" during Summer 2014

4 days saw rainfall over 1″ during Summer 2014

The four days are were: June 30 (1.32″), July 12 (1.35″), August 1 (1.35″), and August 21, with a whopping 2.24″ of rain.  The August 1st rain set a new record for most rainfall ever on that date.  In general terms, we should end up around to slightly above average for the summer season.  There were plenty of dry stretches in between the days that featured soaking rain.  Overall, that’s a good thing: while not that consistent, we didn’t end up with too much rain, or so little that drought formed.

So there you have it!  Numbers 5 and 4!  We will be bringing to the rest of the facts about Summer 2014 each day as we close in on the Autumn season.




Posted under weather

This post was written by Alex Kirchner on September 18, 2014