Thermal lows, or
heat lows, are non-
frontal low-pressure areas that occur over the continents in the
subtropics during the warm season, as the result of intense heating when compared to their surrounding environments. Thermal lows occur near the
Sonoran Desert, on the
Mexican plateau, in California's
Great Central Valley, the
Sahara, over north-west
Argentina in
South America, over the
Kimberley region of north-west
Australia, the
Iberian peninsula, and the
Tibetan plateau.