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📘 How a heat wave persists

See how blocking highs, sinking air, soil moisture, radiation, and urban heat sustain extreme warmth.

lessons

~10 min

to learn

🔬 Science

subject

Adults

level

Start the course →

What you’ll learn

High pressure
Blocking
Solar heating
Subsidence warming
Soil moisture
Nighttime heat
Urban heat
Humidity
Breaking pattern
Forecasting

Questions this course answers

What pattern commonly supports a persistent heat wave?

High pressure promotes sinking air, clear skies, and persistence.

How can dry soil amplify heat?

Reduced evapotranspiration shifts energy toward sensible heating.

Why are warm nights hazardous?

People and structures cannot shed stored heat as effectively.

What can end a heat wave?

Changes in circulation and cloud or air-mass transport remove the persistent heat.

Grounded in trusted sources

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