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
Violent Tornado Threat Continues Overnight for Midwest

Violent Tornado Threat Continues Overnight for Midwest

MONTROSE, IL - A dangerous tornado tore throu

18 Jun 2026 2:55 AM
Tracking The Tropics: Remnants of Arthur Bring Inland Hazards

Tracking The Tropics: Remnants of Arthur Bring Inland Hazards

Post-Tropical Storm ArthurThe National Hurric

18 Jun 2026 2:50 AM
Heat Alerts & Fire Concerns For Central & West U.S.

Heat Alerts & Fire Concerns For Central & West U.S.

A ridge of high pressure continues to dominat

18 Jun 2026 2:30 AM
Severe Weather Returns This Weekend

Severe Weather Returns This Weekend

Another vigorous wave looks like it's taking

18 Jun 2026 2:05 AM
Welcome To Monsoon Season - Here's What to Expect

Welcome To Monsoon Season - Here's What to Expect

WELCOME TO THE NORTH AMERICAN MONSOON SEASON.

17 Jun 2026 5:00 PM
El Niño Forms, Very Strong El Niño Likely Late 2026

El Niño Forms, Very Strong El Niño Likely Late 2026

El Niño has arrived! It didn't take long for

15 Jun 2026 8:00 AM
Confirmed Tornadoes in Ohio and Pennsylvania on Sunday

Confirmed Tornadoes in Ohio and Pennsylvania on Sunday

A cold front on Sunday brought severe weather

15 Jun 2026 1:50 AM