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The National Weather Service is forecasting widespread freezing temperatures with lows in the 20s and lower 30s beginning Sunday morning and lasting into Wednesday in Napa County. Because of the forecasted winds, those temperatures could drop into the teens. 

The Napa County Office of Emergency Services and Public Health advises residents to dress warmly, stay hydrated, and drive safely during this period. 

Possible impacts from the weather include hypothermia because of exposure or poorly insulated residences; biting cold during breezy conditions; and black ice on roadways.  

Hypothermia is caused by prolonged exposures to very cold temperatures. When this happens, the body begins to lose heat faster than it’s produced. Lengthy exposures will eventually use up the body’s stored energy, which lowers body temperature. 

Victims of hypothermia are often older adults with inadequate food, clothing or heating; babies sleeping in cold bedrooms; and people who remain outdoors for long periods.

The Napa County Health and Human Services Agency is temporarily increasing homeless shelter capacity Sunday through at least Wednesday night. Clients need to check in at the Hope Center, located at 1301 Fourth St., or connect with outreach workers for an available bed.

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Napa County Office of Emergency Services and Public Health advises residents to check in on neighbors and older adults during these extreme weather conditions. Signs of hypothermia include shivering, confusion, fumbling hands, memory loss, slurred speech, drowsiness, and bright red and cold skin. If you notice any of these signs, take the person’s temperature. If it is below 95°F, get medical attention immediately. 

If you are using fire to warm up, make sure your space heaters, fireplaces, and portable generators are working properly to avoid carbon monoxide poisoning or other injuries. Also consider wrapping your exposed water pipes with insulation or blankets to protect them from freezing. 

The Napa County Animal Shelter and Adoption Center advises pet owners to bring their furry friends inside, even in the garage. Have some extra blankets to keep them warm, or put clothing on the animals, including covering the paws to ward off possible freezer burn from the cold ground.