Heat Dome 2026: Midwest Meltdown June 29th 2026

Title: Midwest Heat Dome 2026:
Anatomy of an Extreme Summer Threat



Timestamp Breakdown by Chapters:

Chapter 1: The Midwest Under Pressure (00:00 - 03:25)

• 00:00: Introduction: Midwest Heat Dome Overview
• 00:05: Chicago Area: 90s Heat, Lake Effect Mitigation
• 01:18: Inland Temps & Gary, IN: Unverified 95°F
• 02:22: St. Louis: 94°F, Below 2012 Record

Chapter 2: The Humidity Factor (03:25 - 06:27)

• 03:25: The Real Story: Dangerous Dew Points (75°F+)
• 04:34: Peak Dew Points: Central IL & Upper Mississippi
• 05:37: Ozark Plateau Effect: Dew Point Suppression

Chapter 3: Anatomy of the Heat Dome (06:27 - 11:47)

• 06:27: Heat Dome Strength: Comparing to 1995 Event
• 07:30: Anomalous Timing: Late June vs. Mid-July
• 08:33: NWS Lincoln: Deep Subsidence & Convection Suppression
• 09:34: NWS Lincoln: 105-110°F Heat Index, Cumulative Risk
• 10:37: NWS Lincoln: Heat Wave End & Tropical-Style Rain

Chapter 4: Planetary Connections (11:47 - 17:30)

• 11:47: System Drivers: Merger of Two High-Pressure Systems
• 12:51: Bermuda High: Strong IVT & Tropical Suppression
• 14:17: North Atlantic Cold Blob: AMOC Weakening Link
• 15:25: Teleconnections: Cold Blob & US Heat Ridges
• 16:27: Moisture Sources: Gulf Air, Corn Evapotranspiration, Great Lakes

Chapter 5: Local Impacts & Forecast (17:30 - 25:35)

• 17:30: Mississippi River: Minor Humidity Contributor
• 18:30: St. Louis Cardinals: Future Games in Extreme Heat
• 19:29: 7-Day Forecast: Midwest Peak, Eastward Shift
• 20:32: Wind Effect: Heating vs. Cooling in Extreme Temps
• 21:37: Stedman's Research: 95°F Wind Threshold
• 22:28: NWS Heat Index: 5-Knot Wind Assumption
• 23:29: 1995 Comparison: Similarities & Warning Improvements
• 24:34: Warning Infrastructure: Dramatically Better Post-1995
• 25:35: Climate Context: Warmer Oceans, Rising Dew Points

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