Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

The National Weather Service is proposing to lower the elevation scan of the WSR-88D 
Doppler Radar in Grand Junction, CO. This will allow for better scanning of the atmosphere 
from a radar that is located over 10,000 feet in elevation. These improvements will provide 
better radar coverage for much of eastern Utah and western Colorado.

A Draft Environmental Assessment (EA) for lowering the minimum scan angle of the 
Weather Surveillance Radar-Model 1988 Doppler (WSR-88D) serving the Grand Junction, 
CO, area is now available for public comment. The Draft EA document can be obtained at:

DRAFT Environmental Assessment

The NWS will accept written comments on the Draft EA until September 18, 2019. We appreciate your interest in this important project.

A few images from the report can be seen below.