Boost Weather: Air Density

Density altitude, air density, and intake charge temp for your car, read from Apple Weather where you are and graded Green, Yellow, or Red against your own thresholds. One read on the air before you drive. Boost Weather takes four inputs, temperature, dew point, station pressure, and elevation, and computes seven more values on your phone: density altitude, relative air density, air density, humidity, specific humidity, altimeter, and the correction factor a dyno would apply. Then it grades them against a car profile and gives one verdict with the reason on the card. When the air clears every yellow and red line, the headline says what kind of read it is: Thick air, with a blue Strong pill, when the air is dense; the temperature in a word, such as Mild air; or the note that trims it, such as Warm air or Very humid. The verdict describes the air, never the car. RADAR Tap the map button…