Heavy rainfall led to flash flooding in some areas and caused a number of rivers and streams to overflow their banks. The storm also brought high winds and hail to the region.
TRMM Satellite Imagery Analysis:
The TRMM Multi-satellite Precipitation Analysis (TMPA) product provides rainfall estimates from multiple satellites every three hours. The TMPA precipitation data, combined with other data, is used to create TRMM satellite imagery.
The TRMM data analysis shows that the heaviest rainfall fell over the Sierra Nevada Mountains and the Central Valley of California. Rainfall totals of over 15 inches (38 centimeters) were estimated in some areas.
The TRMM imagery also shows that the storm system stretched from Nevada to the Pacific Ocean. The storm system was long and narrow, with a well-defined leading edge. The leading edge of the storm was associated with a line of thunderstorms.
The TRMM data can help forecasters track the storm's movement and predict where the heaviest rainfall is likely to occur. The TRMM data is being used to help with flood preparation and response efforts.
Flash Flooding:
The heavy rainfall from the storm system led to flash flooding in several areas of the western U.S. Flash flooding occurs when a river or stream overflows its banks and inundates surrounding areas. Flash flooding can be very dangerous and can cause extensive damage.
River Flooding:
The heavy rainfall also caused several rivers and streams to overflow their banks. River flooding can cause major property damage and can be a threat to life.
High Winds and Hail:
The storm also brought high winds and hail to the region. High winds can down trees and power lines, and can cause damage to buildings. Hail can damage crops and vehicles.
