Hour-by-Hour Forecast as Wind Chill Values Plummet to -18

Just when you thought it couldn’t get any colder, wind chill temperatures will drop to well below zero late Thursday into Friday morning, according to the National Weather Service.

A wind chill advisory is in effect from midnight- 10 a.m. Friday.

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“The frigid conditions will be dangerous to those venturing outside,” the NWS says. “Prolonged exposure may cause frostbite.”

Frozen pipes and fire hydrants are possible, the NWS says.

The actual temperature will sink into the single digits Thursday night, but gusty winds of up to 35 mph will make it feel much colder. More snow is also on tap this weekend. Find details on potential snowfall accumulations here.

Here is the frigid hour-by-hour wind chill temperature forecast for the island courtesy of The Weather Channel:

Thursday

7 p.m.: -2 degrees

8 p.m.: -4 degrees

9 p.m.: -6 degrees

10 p.m.: - 9 degrees

11 p.m.: - 10 degrees

Friday

Midnight: -11 degrees

1 a.m.: -12 degrees

2 a.m.: -13 degrees

3 a.m.: -14 degrees

4 a.m.: - 16 degrees

5 a.m.: - 17 degrees

6 a.m. -18 degrees

7 a.m.: -17 degrees

9 a.m.: -13 degrees

10 a.m.: -11 degrees

11 a.m.: -8 degrees

Noon: -4 degrees

1 p.m.: -2 degrees

2 p.m: 3 degrees

Follow these extreme cold safety tips:

• Wear several layers of loose fitting, lightweight, warm clothing rather than one layer of heavy clothing.
• Wear mittens instead of gloves.
• Wear water-repellent clothing.
• Wear a hat.
• Cover your mouth with a scarf to protect your lungs.
• Make sure small children, infants, and the elderly stay warm. They are more vulnerable to the cold.
• Take advantage of warming centers, public park facilities, and heated stores and malls.
• Where possible, try to keep one room in your home heated to 68-70 degrees.
• Avoid drinking alcoholic beverages.
• Eat high energy foods and drink warm beverages.
• Beware of overexertion; shoveling snow or pushing disabled cars can be very strenuous and should only be done by individuals in good health.
• Safe heating tips
• Electric heaters can be hazardous and should be used with caution to prevent shock, fire, and burns. Follow the usage instructions carefully and keep clothing and blankets away from heating elements.
• Carbon monoxide can kill. Be careful using fireplaces; make sure flues are clear and properly ventilated.
• Gas ovens, burners, and charcoal should never be used to heat your home.
• NEVER use generators in homes, garages, basements, crawl spaces, or other enclosed or partially enclosed areas, even with ventilation.
• Make sure your car is in good operating condition before using it in extreme cold.
• Keep condensation (water) out of your gas tank by keeping the tank as full as possible.
• Maintain a storm kit in your car with items such as a cell phone and charger; blankets; extra clothing; jumper cables; a flashlight; high-calorie, non-perishable food; and matches or a lighter.
• Plan your trip carefully. If cold, snowy, or icy conditions exceed your ability or your car’s ability, don’t travel.
• Tell someone about your travel plans.
• Never leave the motor running in a vehicle parked in an enclosed or partially enclosed space, such as a garage.

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