National Weather Service United States Department of Commerce

Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

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Important Disclaimer

The following graphics are experimental and not an official forecast product. The graphics were created to display diagnostics for the MRMS radar-only rainfall estimate product. The plots were developed as a tool for assessing potential biases in data that has not been adjusted using rain gauges.


Experimental products may not always update in a timely manner and may be discontinued at a future date. Experimental products may not always reflect accurate, quality controlled information and should be used with caution.

 

Image showing bias correction factor for the MRMS Q3 radar-only rainfall estimate compared to RFC gauge bias-corrected estimates.

Image showing difference between the MRMS Q3 radar-only rainfall estimate and the RFC gauge bias-corrected estimate, in inches.

Image showing bias correction factor for the MRMS Q3 radar-only rainfall estimate compared to RFC gauge bias-corrected estimates.

Image showing difference between the MRMS Q3 radar-only rainfall estimate and the RFC gauge bias-corrected estimate, in inches.