This precipitation map shows the progression of a powerful storm system, bringing heavy rain and snowfall across the eastern ...

La Niña, the climate pattern in the Pacific Ocean responsible for cooler-than-average temperatures, remains in full force, but forecasters estimate a 66% chance of a switch to more neutral weather ...

Use of surface analyses began first in the United States, spreading worldwide ... weather at various locations on the weather map. Areas of precipitation help determine the frontal type and ...

The only region expected to see below-average temperatures is the far Northwest. In looking at the precipitation forecast for the next three months, much of the Southwest, Southern Rockies and ...