WMUR is an important subject that many people are interested in learning about, especially when it comes to tracking winter weather events across New Hampshire and the broader New England region. As Tuesday’s snowfall approaches, residents need accurate, up-to-date information to plan their commutes, prepare their homes, and ensure safety for their families.

Winter weather forecasting in New Hampshire presents unique challenges due to the state’s diverse topography. From the seacoast to the White Mountains, elevation changes dramatically affect how snow accumulates across different regions. WMUR’s meteorological team uses advanced Doppler radar systems, satellite imagery, and computer modeling to provide the most accurate forecasts possible for Tuesday’s incoming storm system.

The current low-pressure system developing over the Great Lakes region is expected to track northeast, bringing moisture-laden air into collision with colder Arctic air masses. This atmospheric setup is classic for significant snowfall events in northern New England. The timing of this collision is critical for determining exactly when snow will begin falling and how long the event will last.

Temperature profiles through the atmosphere play a crucial role in determining precipitation type. When temperatures remain below freezing from the cloud level down to the surface, pure snow falls. However, warm layers aloft can create mixed precipitation including sleet or freezing rain. Current models suggest Tuesday’s event will be predominantly snow for most of New Hampshire, though coastal areas may see a brief period of mixing.

Ground temperatures also factor into accumulation rates. With recent cold weather keeping soil temperatures low, snow should begin accumulating quickly once it starts falling. This means road crews will need to be proactive in their treatment strategies to prevent ice formation beneath the snow layer.

Tuesday’s snowfall is expected to begin during the early morning hours for western portions of the state, arriving between 4 AM and 6 AM. The snow will spread eastward through the morning commute, reaching the seacoast by mid-morning around 9 AM to 10 AM. This progression means western communities like Keene and Lebanon will see accumulation building during the predawn hours, while Manchester and Concord will experience the heaviest snow during the typical rush hour period.

The storm’s peak intensity is forecast for midday through early afternoon. During this window, snowfall rates could reach one to two inches per hour in the heaviest bands. Visibility will drop significantly, and travel will become hazardous even on treated roadways. Planning to be off the roads during this period is strongly recommended.

Snow should begin tapering from west to east during the late afternoon and evening hours, with most areas seeing the precipitation end by 8 PM to 10 PM Tuesday night.

Northern New Hampshire, particularly the White Mountains region, could see the highest totals from this event. Elevations above 2,000 feet may receive 10 to 14 inches of fresh snow, creating excellent conditions for ski resorts but challenging travel on mountain passes. Route 302 through Crawford Notch and Route 16 through Pinkham Notch will require extreme caution.

The central corridor including Manchester, Concord, and Nashua is forecast to receive 6 to 9 inches of accumulation. This moderate-to-heavy snowfall will significantly impact afternoon and evening commutes. School districts in this region should monitor conditions closely for potential early dismissals.

Coastal communities from Portsmouth to Hampton may see reduced totals of 4 to 6 inches due to slightly warmer ocean temperatures and the potential for brief mixing. However, wind-driven snow could create localized drifting along exposed beach areas.

Preparation should begin Monday evening before the first flakes fall. Ensure vehicles are fueled and equipped with emergency supplies including blankets, flashlights, and snacks. Check that snow removal equipment is operational and that adequate ice melt or sand is available for walkways.

Communication plans are essential for families with members commuting to work or school. Establish check-in times and alternate routes in case primary roads become impassable. Download the WMUR app to receive real-time weather alerts and school closing notifications directly to your mobile device.

Businesses should review their inclement weather policies and communicate expectations to employees early. Encouraging remote work where possible can reduce traffic volume and improve safety for those who must travel.

**Tip 1: Adjust Your Travel Schedule**

If possible, avoid travel during the peak snowfall hours between 10 AM and 4 PM on Tuesday. Consider leaving for work earlier than usual to complete your commute before the heaviest snow begins. Alternatively, work from home if your employer permits, or delay your departure until roads have been cleared. Even a few hours can make a significant difference in road conditions and your personal safety.

**Tip 2: Prepare Your Vehicle Properly**

Clear all snow and ice from your vehicle before driving, including the roof, hood, and all windows. Snow left on vehicle roofs can blow off during travel and obstruct the view of drivers behind you. Ensure your headlights and taillights are visible. Keep your gas tank at least half full to prevent fuel line freezing and ensure you have reserves if stranded.

**Tip 3: Stock Emergency Supplies**

Keep a winter emergency kit in your vehicle containing warm blankets, extra gloves and hats, a flashlight with fresh batteries, a phone charger, non-perishable snacks, and water. A small shovel and bag of sand or kitty litter can help if you become stuck. Flares or reflective triangles increase visibility if you must stop on the roadside.

**Tip 4: Know Your Local Resources**

Familiarize yourself with your town’s snow emergency parking bans and plowing schedules. Many communities post this information on municipal websites and social media pages. Sign up for your town’s emergency notification system to receive alerts about road closures, shelter locations, and other critical information during the storm.

**Tip 5: Protect Your Home**

Before the storm arrives, clear drains and gutters of debris to prevent ice dams. Move snow shovels and ice melt near your primary entrance for easy access. If you have a generator, test it now and ensure you have adequate fuel stored safely. Consider letting faucets drip slightly if temperatures drop significantly to prevent frozen pipes.

Power outages are possible during Tuesday’s storm, particularly if snow becomes heavy and wet during the warming trend expected late in the event. Strong winds accompanying the system could bring down tree limbs weakened by snow accumulation. Have flashlights, batteries, and battery-powered phone chargers readily accessible. If you rely on medical equipment requiring electricity, contact your power company to be placed on their priority restoration list.

Carbon monoxide poisoning risk increases during winter storms when people use alternative heating sources improperly. Never operate generators, grills, or camp stoves indoors. Ensure your carbon monoxide detectors have fresh batteries and are functioning properly.

Hypothermia and frostbite can occur quickly in winter conditions, especially when wind chill factors are considered. Limit time outdoors during the storm’s peak. If you must be outside, dress in layers and cover exposed skin. Watch for warning signs including shivering, confusion, slurred speech, and numbness in extremities.

Tuesday’s snowfall will bring a significant winter weather event to New Hampshire, requiring preparation and patience from residents across the state. By staying informed through WMUR’s continuous coverage, monitoring the timeline closely, and taking appropriate precautions, you can navigate this storm safely.

Remember that winter weather is simply part of life in New England, and our communities are well-equipped to handle these events. Road crews will be working around the clock to keep major routes passable. First responders stand ready to assist those in need. Neighbors helping neighbors has always been the New Hampshire way.

Stay safe, stay informed, and stay warm as we welcome this latest reminder of New Hampshire’s beautiful but challenging winter season.