Tracking Atmospheric River for California; Record Temperatures Further East

An atmospheric river will bring gusty to high winds, moderate to heavy rainfall, and potential flooding to California today through Saturday. Heavy snow will be possible over the Sierra Nevada mountains into Friday associated with this atmospheric river. East of these impacts dozens of record high maximum and high minimum temperatures may be broken or tied today and Friday. Read More >

A Discussion on Water Vapor (Moisture)

QUESTION 3:

If the air temperature was 90 F with a relative humidity of 60 percent in the afternoon, would it feel more uncomfortable to a person than if it was 75 outside with a relative humidity of 100 percent in the morning?

ANSWER 3:

At 90 with a relative humidity of 60 percent, it would "feel" like 100 degrees outside; at 75 with a relative humidity of 100 percent, it would only "feel" like 80. Despite the much different relative humidity value, the absolute humidity or dewpoint would be about the SAME in both these cases (i.e., dewpoint of 75 degrees). This "feeling" that combines air temperature and moisture in the air is referred to as the "heat index." Please return to the text for further information.

Back to Discussion on Water Vapor

Weather Story

Weather Map

Local Radar

LMK RSS Feed

Tracking Atmospheric River for California; Record Temperatures Further East

Water Vapor answer 3