ALERTS: An "extreme cold watch" has been issued by the National Weather Service from Saturday at 6 p.m. through Sunday at 1 p.m. This can convert to an "extreme cold warning" or "cold weather advisory" as we get closer. Either way, the forecast for wind chills 10 to 20 degrees below zero remains unchanged through the weekend.

NEW: Today is the 13th consecutive day with high temperatures at or below 32 degrees at Islip MacArthur airport. This is now tied with the longest streak since the 13-day streak in late December 2017 into early January 2018. The longest streak of this kind in recorded history at Islip MacArthur airport since 1963 is 16 days, set back in February of 1979. There is a chance we could rival that all-time record.

As long as you are dressed warmly and are watching out for any patchy areas of black ice from minimal melting during the day, you will be fine weather-wise overnight. Clouds gradually increase with lows feeling like the upper single digits to middle teens into Friday morning.

Most of Friday will be dry, but under a mostly cloudy sky with hints of sun at times. Highs will be around 29 degrees with a light breeze. A few scattered flurries will be possible in the afternoon and evening, but any steadier snow holds off until late at night.

After around 10 p.m. Friday, scattered light snow showers develop. While most of the off-and-on snow will be light to moderate, a couple of snow squalls are possible after midnight and into early Saturday morning. This means brief, near whiteout conditions are possible with brief bursts of heavier snow at times. This can cause slippery and dangerous travel.

Snow on Saturday will be off-and-on, but with a gusty wind developing in the morning. Visibility can be reduced with icy travel on Saturday and blowing snow. Snow totals will range from mostly around 1 to 3 inches. The bulk of that snow ends during the morning, but a few snow showers can linger in the afternoon. The best chance for the higher end of those totals will be over the East End, where 3 to 4 inches of snow is not out of the question. Most of Long Island is expected to receive less than that. There is an offshore storm that can enhance some of the snow over the East End.

Our next round of Arctic air arrives at the same time on Saturday. This, combined with wind gusts between 25 and 45 mph, will make it feel like well below zero all day on Saturday. That is dangerously cold if you are not careful, dressed in layers and limiting time outdoors.

The coldest-feeling air of the weekend will be Sunday morning with wind chills around -10 to -20 degrees. This is potentially life-threatening cold if you are not careful. Cold-weather-related health impacts like frostbite and hypothermia can develop in less than 15 minutes. Please avoid as much exposure to the cold during this time and dress in layers. That said, it will be dry if you are heading to festivities for the big game! Just watch out for some lingering icy conditions on the roads.

It will stay dry through Tuesday with temperatures back in the upper 20s to low 30s. There is a chance we could finally get some slightly above freezing high temperatures starting next Wednesday, with a wintry mix or rain possible on Wednesday. There will be another chance for a wintry mix or rain in time for Valentine's Day next Saturday.

Have a great night and stay warm!