Dec 1, 2014 6:41 PM
Clayton Stiver's Forecast for Snow and Ice Tuesday Night and early Wednesday
Source: NH1 Chief Meteorologist - NH1.com
A warm front tracking across the Granite State Tuesday Night will help spark some light snow that will mix with and change over to sleet, freezing rain, and eventually plain old rain as we go into the wee hours of Wednesday Morning.
Look for most folks to start off as light snow after 7pm Tuesday with temps in the upper 20s to low 30s and the moisture building in from our southwest. Things will be a little warmer at the Seacoast and this may actually start off as plain old rain for you and stay that way for much of the duration of the system.
Once we get past 10pm, warmer air building in at the surface and aloft will make for a transition to sleet and freezing rain from south to north. By 4am, many will see temps above freezing allowing for plain old rain, however small portions of the Upper Valley, the Mountains, and Great North Woods will continue to hang on to some freezing rain. By sunrise, most if not all of the Granite State should see plain old rain showers as temps continue to warm (even in the higher elevations).
Accumulations look to be on the light side with snowfall on the range of 1"-2" from Monadnock through the Central Merrimack Valley and points north. Less than an inch of snow can be expected across southern reaches of the Merrimack Valley to interior sections of the Seacoast. The I-95 corridor to the immediate coast may not see any snow at all, or at least little or no snow accumulation.
For ice, many look to see 0.10" or less, but 0.10"-0.25" will be possible across the Mountains and small portions of the Upper Valley. Far southern reaches of the Merrimack Valley to the Seacoast look to see little or no ice accumulation. Even though these accumulations are expected to be light, it doesn't take much snow or ice to make for some travel issues. Folks traveling late Tuesday Night into Wednesday Morning should be cautious of some slick spots.