Question

1. a dry-bulb temperature of 30°c and a wet-bulb temperature of 29°c were recorded at a weather station. what are the relative humidity and the most likely weather conditions? relative humidity is 93% with clear skies. relative humidity is 93% with a good chance of rain. relative humidity is 29% with clear skies. relative humidity is 29% with a good chance of snow.

Explanation:

To determine relative humidity from dry - bulb (30°C) and wet - bulb (29°C) temperatures, we use the concept that a small difference between dry - bulb and wet - bulb temperatures (here, 30 - 29 = 1°C) indicates high relative humidity. Using humidity tables or formulas, for a dry - bulb of 30°C and a 1°C difference, relative humidity is around 93%. High humidity (93%) means there is a lot of moisture in the air, which increases the chance of precipitation like rain. Clear skies are associated with low humidity, and snow is unlikely at 30°C. So the option with 93% relative humidity and a good chance of rain is correct.

Answer:

B. Relative humidity is 93% with a good chance of rain.