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
East Coast Snow? What We Know About the Late Week System

East Coast Snow? What We Know About the Late Week System

Ready for the first snow of the season? While

8 Nov 2026 2:20 AM
Atmospheric River Setup for the Northwest

Atmospheric River Setup for the Northwest

The calendar has now turned to month of Novem

8 Nov 2026 2:05 AM
Texas Flood Threat Building Sunday

Texas Flood Threat Building Sunday

A strong trough of low pressure moving throug

8 Nov 2026 12:20 AM
Heavy Rain Brings Flooding Concerns to Northeast as Storm System Moves East

Heavy Rain Brings Flooding Concerns to Northeast as Storm System Moves East

The same system that has produced unsettled w

7 Nov 2026 10:00 PM
Tropics Update: Pena Forms In The Central Pacific;One Area in the Atlantic Basin

Tropics Update: Pena Forms In The Central Pacific;One Area in the Atlantic Basin

Hurricane season isn’t over yet. The National

7 Nov 2026 7:05 PM
Flash Flood Emergency For Parts of Georgia and Tennessee

Flash Flood Emergency For Parts of Georgia and Tennessee

Residences along the Ocoee (TN) and Toccoa (G

5 Nov 2026 1:50 PM
Torrential Downpours Batter the Sunshine State

Torrential Downpours Batter the Sunshine State

Florida has seen heavy rainfall and lots of f

5 Nov 2026 11:05 AM