21. Asthma, temperature inversions stifle the escape of pollution. 22. The temperature inversion created by the valley led to the soot becoming trapped leading to dense smogs. 23. The other lensing effect occurs in a temperature inversion , the weather pattern that traps smog in California. 24. Due to temperature inversions that trap cold nocturnal air, it routinely produces the coldest temperatures in the state. 25. For the third day, a temperature inversion hung over the mountains, smothering the fire in its own smoke. 26. Chiprovtsi municipality falls in the humid continental climate climate zone, with a slight temperature inversion in the valleys. 27. Warm, moist air then rises, but its ascent is blocked by a temperature inversion at 5, 000 feet. 28. These widely varying temperature extremes are due to three main factors : temperature inversions , daylight, and wind direction. 29. The air was cooler while the ocean was probably a little bit warmer, which made temperature inversion lower. 30. Temperature inversions like this are common.