National Weather Service United States Department of Commerce

As the snowpack continues to melt with the warming temperatures, remember that mountain rivers and streams are cold and can be very swift! People in or near area lakes, rivers, and streams should remain cautious to the dangers of cold springtime waters. If exposed to cold waters, even experienced swimmers can lose muscle control very quickly, and any fast flowing water will make rescue difficult. Practice cold water safety techniques or avoid going into the water. Recognize the signs of hypothermia; such as shivering, cold hands and feet, poor coordination or loss of dexterity, and mental sluggishness. Alcoholic beverages can speed the onset and progression of hypothermia.
Strong thunderstorms are possible along the Sierra Nevada today and Tuesday. Small hail and wind gusts near 40 miles per hour are a couple of hazards associated with strong thunderstorms. In addition to dangerous cloud to ground lightning strikes, any thunderstorm can produce intense rainfall rates, leading to localized flooding.


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