Impact weather for NH with mixed and freezing cold ahead

There are two weather impacts on the way: a mixture of icy spots on Sunday, then a freezing blast of arctic air. Let’s focus on Sunday first. Here’s what to expect: WHAT: SMOOTH TRAVEL As a cold front approaches the area, we’ll see rainfall in New Hampshire on Sunday. This time around we are talking about various types of precipitation as opposed to the all snow event that we saw on Friday. Temperatures will rise throughout the morning and throughout the day, but temperatures will initially be below freezing. And, like what we saw on Wednesday of last week, road or ground temperatures will likely stay below zero for a bit longer. This will create the risk of freezing rain and sleet. In the north of the country, mainly snow is expected with some possible sleet. Build-ups will be light, but slippery spots are likely. Central and southern New Hampshire have the best chance of seeing freezing conditions, especially in the southwest in the state where the risk of freezing rain is highest. This is where a winter weather advisory was issued. The advisory is in effect from 6:00 a.m. to 3:00 p.m. Sunday and includes the counties of Cheshire, Sullivan, Hillsborough and Merrimack. Travel will be slippery in these areas. Precipitation can start early as snow or sleet before changing to freezing rain as the air warms above the surface. Anywhere from a trace or glaze of ice to a tenth of an inch is possible, with County Cheshire having the best chance of seeing up to a quarter of an inch of ice. In southeastern New Hampshire, temperatures will warm enough that any slick conditions will not last and the precipitation will turn to regular rain. WHEN: THE MOMENT Here’s when to expect it. Precipitation is expected to start in the morning and subside in the afternoon. At first we might see flurries or a bit of a mix start to arrive around 7-9 a.m. By mid-morning there will likely be slippery spots over much of the Granite State as the precipitation becomes widespread and falls mostly as a mixture or frost. rain, especially south of the mountains. As afternoon approaches, temperatures will warm up by a few degrees in the southeast, which could help limit slippery areas there as the downpours of rain fall. As precipitation declines and subsides by mid-afternoon, there may be persistent slippery areas where temperatures remain near or below freezing. Otherwise, expect drier conditions on Sunday evening with a few flurries (mostly north and in the mountains) as we pass the front. Watch for patchy areas of black ice to form overnight through Monday as temperatures drop overnight and wet surfaces refreeze. Sunday night through Monday lows will fall back into the teens and 20s. LOOKING AHEAD: COLD After Sunday, the next impact will be the freezing cold that we have on our way next week as a blast of snow. arctic air is coming. Monday’s highs will hit the 1920s, but the wind chills will be very cold and Monday night’s lows will drop to single digits above AND below zero. By Tuesday, it could “look” like double-digit digits BELOW zero thanks to the wind in addition to cold daytime temperatures that struggle to keep the digits simple. On Tuesday night, it will remain extremely cold with sub-zero thermometer readings expected across New Hampshire. Stay tuned for more on the incoming cold this week. Bundle up!

There are two weather impacts on the way: a mixture of icy spots on Sunday, then a freezing blast of arctic air. Let’s focus on Sunday first. Here’s what to expect.

WHAT: SMOOTH TRAVEL

As a cold front approaches the area, we will see precipitation in New Hampshire on Sunday. This time around we are talking about various types of precipitation as opposed to the all snow event that we saw on Friday.

Temperatures will rise throughout the morning and throughout the day, but temperatures will initially be below freezing. And, like what we saw on Wednesday of last week, road or ground temperatures will likely stay below zero for a bit longer. This will create the risk of freezing rain and sleet.

In the north of the country, mainly snow is expected with some possible sleet. Build-ups will be light, but slippery spots are likely.

Central and southern New Hampshire have the best chance of seeing freezing conditions, especially in the southwest in the state where the risk of freezing rain is highest. This is where a winter weather advisory was issued.

winter weather notice

The advisory is in effect from 6:00 a.m. to 3:00 p.m. Sunday and includes the counties of Cheshire, Sullivan, Hillsborough and Merrimack. Travel will be slippery in these areas. Precipitation can start early as snow or sleet before changing to freezing rain as the air warms above the surface.

ice

Anywhere from a trace or a glaze of ice to a tenth of an inch is possible, with County Cheshire having the best chance of seeing up to a quarter of an inch of ice.

In southeast New Hampshire, temperatures will warm enough that the slippery conditions do not last and the precipitation turns into regular rain.

WHEN: THE MOMENT

Here’s when to expect it.

planner

Precipitation is expected to start in the morning and subside in the afternoon.

Initially we could see a few flurries or a bit of a mix start to arrive around 7-9 a.m.

storm tracker

By mid-morning there will likely be slippery areas over much of the Granite State as precipitation becomes widespread and falls mainly as mixed or freezing rain, particularly south of the mountains.

storm tracker

As afternoon approaches, temperatures will warm up by a few degrees in the southeast, which could help limit slippery areas there as the rain showers fall.

storm tracker

As precipitation declines and subsides by mid-afternoon, there may be persistent slippery areas where temperatures remain near or below freezing.

storm tracker

Otherwise, expect drier conditions on Sunday evening with a few flurries (mostly north and in the mountains) as we pass the front.

storm tracker

Watch for patchy areas of black ice to form overnight through Monday as temperatures drop overnight and all wet surfaces refreeze. Sunday night through Monday lows will fall back into the teens and 20s.

LOOKING AT THE FUTURE: COLD

Beyond Sunday the next impact will be the freezing cold we get on our way next week as a blast of arctic air arrives.

Temperatures

Monday’s highs will hit the 1920s, but the wind chills will be very cold and Monday night’s lows will drop to single digits above AND below zero.

By Tuesday, it could “look” like double-digit digits BELOW zero thanks to the wind in addition to cold daytime temperatures that struggle to keep the digits simple.

Temperatures

Tuesday night will remain extremely cold with sub-zero thermometer readings expected in New Hampshire.

Stay tuned for more on the incoming cold this week. Bundle up!

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Ethel Nester

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