National Weather Service United States Department of Commerce

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

High pressure will start building in overnight and cause clouds to decrease.  This decrease in cloud cover, along with the colder air from yesterday's cold front, will cause temperatures to drop below freezing tonight.  Almost the entire forecast area will wake up to temperatures below 32F.  However, a quick warm-up is in store with high temperatures rebounding to the 60s for a lot of valleys. The weather looks fairly benign through much of the week with the next chance for any significant precipitation on Thursday.