Storms possible early Monday morning, heat to follow shortly

Triple digit heat indices possible by midweek
Published: Jul. 31, 2022 at 10:27 PM CDT
Email This Link
Share on Pinterest
Share on LinkedIn

ROCKFORD, Ill. (WIFR) - August is now just hours away from arriving, and all signs point to it starting out on a rather eventful note.

There are two big storylines taking shape in the first few days of the new month, the first being a chance for showers and thunderstorms in the month’s opening hours. Following that will be a rapid transition to a hotter, more humid weather pattern.

A very weak cold front dropping southeastward Sunday evening has triggered a line of showers and thunderstorms over Minnesota, Iowa, and Wisconsin. Eventually, these storms are to enter the Stateline very shortly after midnight, only to exit just a few hours later. While a few brief downpours, flashes of lightning, and rumbles of thunder are all possible, the severe weather risk here is very low, as there’s been a steady weakening trend observed over the past several hours.

Showers and storms will enter the area just after midnight.
Showers and storms will enter the area just after midnight.(Mark Henderson, WIFR)
Showers and storms will occupy a good chunk of the Stateline around 2:00am.
Showers and storms will occupy a good chunk of the Stateline around 2:00am.(Mark Henderson, WIFR)
Showers and storms will be quickly exiting the area around 3:00am.
Showers and storms will be quickly exiting the area around 3:00am.(Mark Henderson, WIFR)
Storms will be out of our area by 4:00am Monday.
Storms will be out of our area by 4:00am Monday.(Mark Henderson, WIFR)
Storms should be weakening as they approach the area, greatly limiting the severe risk here.
Storms should be weakening as they approach the area, greatly limiting the severe risk here.(Mark Henderson, WIFR)

Clouds may linger in partial form early in the day Monday, only to be quickly followed by sunshine. Northwesterly winds behind the front won’t necessarily drop temperatures here Monday afternoon, though humidity levels are to be noticeably lower than Sunday.

Sunshine is to dominate Monday, though temperatures will take a small step bac thanks to...
Sunshine is to dominate Monday, though temperatures will take a small step bac thanks to northwesterly winds.(Mark Henderson, WIFR)

Monday night into Tuesday are to be similarly quiet, though a shift back to a southerly wind will send temperatures back to within striking distance of 90°. Thankfully, humidity levels, while higher than Monday, aren’t to become oppressively high yet.

Sunshine and just a few clouds are to be expected Tuesday. Winds shifting to the south will...
Sunshine and just a few clouds are to be expected Tuesday. Winds shifting to the south will allow heat to rebuild.(Mark Henderson, WIFR)
Temperatures Tuesday are to take a run at 90°, though humidity won't be oppressive.
Temperatures Tuesday are to take a run at 90°, though humidity won't be oppressive.(Mark Henderson, WIFR)

Real heat is on the docket on Wednesday, though. Bright sunshine along with strong southerly and southwesterly winds will send temperatures soaring and humidity levels are also to surge. Temperatures are to head well into the 90s, and heat index values are ticketed for the upper 90s to near 100°.

We'll head well into the 90s on Wednesday, with heat indices nearing 100°.
We'll head well into the 90s on Wednesday, with heat indices nearing 100°.(Mark Henderson, WIFR)

While temperatures are to head back closer to normal Thursday and Friday, 90s are on track to return for the weekend, and quite likely beyond. The heat may very well be a prevailing story for much of the first half of August. The Climate Prediction Center’s long range outlook suggests above normal temperatures continuing through at least August 14, while below normal precipitation appears to be a good bet as well.

A very warm, if not downright hot pattern is to persist for most of the first half of August.
A very warm, if not downright hot pattern is to persist for most of the first half of August.(Mark Henderson, WIFR)
The first half of August looks to be on the dry side.
The first half of August looks to be on the dry side.(Mark Henderson, WIFR)

Copyright 2022 WIFR. All rights reserved.