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
Northeast: Soaking Showers & Severe Storms

Northeast: Soaking Showers & Severe Storms

Wash. Rinse. Repeat. Each week there's been a

31 Aug 2026 7:45 PM
Monsoon Moisture Brings Flooding Across the Four Corners

Monsoon Moisture Brings Flooding Across the Four Corners

Flood Watches are in effect throughout Arizon

31 Aug 2026 7:40 PM
BREAKING: Tropical Depression Five Forms in the Gulf

BREAKING: Tropical Depression Five Forms in the Gulf

Tropical Depression Five - The National Hurri

31 Aug 2026 6:00 PM
Days of Severe Weather For The Plains

Days of Severe Weather For The Plains

The storms that materialized Sunday were NOT

31 Aug 2026 2:15 PM
El Nino Powers a Party in the Pacific

El Nino Powers a Party in the Pacific

The Pacific hurricane season is showing no si

31 Aug 2026 10:15 AM
El Nino Pushes Sharks into Southern California Beaches

El Nino Pushes Sharks into Southern California Beaches

During El Nino, temperatures across the Easte

30 Aug 2026 10:00 AM
Southwest Heatwave Breaking Down

Southwest Heatwave Breaking Down

High pressure continues to dominate the South

29 Aug 2026 6:35 PM