A Heat Burst Happened Sunday Morning: What Is It??

news image
Top Stories
23 Jun 2025 8:50 AM

Sounds like something out of science fiction, right? These are relatively rare, but sometimes, the temperature can jump rapidly in the early morning hours, like it did this morning in Perham, MN. So, how does it happen? What do you need to see the thermometer jump almost 20° without much warning? There are two big ingredients you'll need: a dying storm and some warm air just off the surface.

As that storm falls apart, the rain-cooled air will shove the warmer, drier air down to the surface. The temperature shot from about 80 all the way up to 97 in a matter of 30 minutes between 7:00 and 8:00 AM.

Usually, these happen in the morning hours, when an inversion will displace the warmer air aloft as we cool off overnight.

All Weather News
More
Severe Thunderstorms Ramp Back Up This Week

Severe Thunderstorms Ramp Back Up This Week

While the severe thunderstorm risk ends with

20 Apr 2026 7:30 PM
Cold Blast Prompts Frost and Freeze Alerts

Cold Blast Prompts Frost and Freeze Alerts

WHAT TO EXPECTA blast of cold air has brought

20 Apr 2026 7:15 PM
Record Snow, Record Rain, Rising Rivers

Record Snow, Record Rain, Rising Rivers

Flooding turned serious over the last week ac

20 Apr 2026 4:20 PM
Looking Back at Last Week's Severe Weather Outbreak

Looking Back at Last Week's Severe Weather Outbreak

Tornadoes, hail, wind, and rain slammed the M

20 Apr 2026 4:10 PM
Active Week Ahead for the West Coast

Active Week Ahead for the West Coast

After a quiet weekend, the next upper level l

20 Apr 2026 9:40 AM
Last Day of East Coast Record Heat, Big Cool Down on the Way

Last Day of East Coast Record Heat, Big Cool Down on the Way

High pressure has been dominant on the East C

19 Apr 2026 1:20 AM
Colorado I-70 Pileup on Tuesday, More Snow Late Week

Colorado I-70 Pileup on Tuesday, More Snow Late Week

COLORADO - An estimated 70+ car pileup happen

17 Apr 2026 7:15 PM