A spring storm that meteorologists had been tracking for days arrived in New Hampshire Saturday morning with notable force, bringing sustained high winds, heavy rainfall, and even late-season snow to the state’s highest peaks. By mid-morning, more than 12,000 households and businesses across the Granite State were sitting in the dark, with utility crews scrambling to restore service across multiple counties.
The storm marks one of the more disruptive late-May weather events in recent memory for New Hampshire, arriving just as many residents were looking forward to outdoor activities during the holiday weekend. NHPR reported that the National Weather Service issued a high wind advisory for southeastern New Hampshire that remained in effect until noon Saturday, warning residents of potentially dangerous conditions.
Power Utilities Responding Statewide
Eversource, the state’s largest electric utility, bore the brunt of the outage reports. The company logged more than 10,000 outages across its New Hampshire service territory as of 9:30 a.m. Saturday, a figure that had utility crews dispatched across multiple regions before breakfast. Unitil, which serves customers primarily in southern New Hampshire, reported approximately 1,400 additional outages at the same time, bringing the combined statewide total to more than 12,000 affected customers.
Utility restoration timelines were not immediately available Saturday morning, as crews were still assessing the extent of damage to distribution lines. Wind-related outages tend to be more complex to restore than those caused by ice storms, since fallen trees and broken limbs often land on multiple spans of line simultaneously, requiring line crews to work section by section before power can be safely re-energized.
Residents losing power on a late May Saturday face a specific set of challenges. While heating concerns are minimal, refrigerated and frozen food can be compromised quickly, and many people had outdoor events and activities planned for the holiday weekend. Anyone who recently stocked up for a Memorial Day gathering should consider moving perishables to insulated coolers if the outage extends beyond a few hours.
For real-time outage maps and restoration estimates, Eversource customers can check the company’s outage tracker online, while Unitil customers can monitor that utility’s outage portal. Both utilities encourage customers not to approach downed power lines and to report any lines on the ground to their local utility or emergency services.
The White Mountains: Winter Returns in Late May
The storm’s impact was not limited to the southern and coastal portions of the state. At the summit of Mount Washington, conditions Saturday morning looked far more like February than late May. The Mount Washington Observatory, which maintains a continuous weather record at the summit, reported that half a foot of sleet and snow accumulated in just four hours Saturday morning, a striking figure given the calendar proximity to June.
The National Weather Service issued warnings for dangerous wintry conditions for hikers and campers planning to be in the high peaks of the White Mountains Saturday. Heavy wet snow was expected to continue accumulating at higher elevations throughout the morning, with the potential for up to a foot of snow on the tallest summits before conditions improved. The combination of snow accumulation, saturated terrain, and high winds created serious hazards for anyone caught above treeline.
For context, conditions at Mount Washington’s summit can shift dramatically even on pleasant days in the valley below. The summit sits at 6,288 feet, high enough that late-season snowstorms are not unusual, but the accumulation rate observed Saturday was notable even by the observatory’s standards. The mountain has recorded snow in every month of the year, though late-May snowfall of this magnitude is uncommon.
Hikers and campers who had planned weekend trips to the White Mountains were strongly advised to check conditions and reconsider backcountry plans. Trail surfaces at mid-elevation would have been a mixture of mud, standing water, and patchy ice, making footing treacherous even for experienced hikers with proper footwear. Anyone already in the field was encouraged to descend to lower elevations until conditions stabilized.
The weather event serves as a reminder of why preparation matters in New Hampshire’s backcountry. Experienced mountaineers know to carry extra layers, rain gear, and emergency supplies regardless of how the weather looks at the trailhead, because summit conditions can differ from valley conditions by 20 degrees or more and change within hours. The White Mountain National Forest encompasses more than 750,000 acres, and rescue operations in that terrain are both dangerous and resource-intensive.
Seacoast Facing High Surf Through Evening
The storm’s effects extended to New Hampshire’s 18 miles of Atlantic coastline as well. A high surf advisory was in effect for the Seacoast area through 8 p.m. Saturday, with the National Weather Service forecasting large breaking waves in the range of six to nine feet along the beaches. Conditions like these are dangerous for swimmers and even for people walking near the water’s edge, as rogue waves and surge can reach well up onto the beach without warning.
Hampton Beach, Rye Beach, and other popular Seacoast destinations were unlikely to see the usual holiday crowds Saturday morning given the weather, but the surf advisory was a reminder to residents and visitors alike that the ocean remains powerful and unpredictable. Anyone planning beach activities was advised to stay well back from the water’s edge and to keep children and pets away from breaking surf.
Coastal flooding concerns were also present. The combination of heavy rainfall, onshore winds, and elevated tides during a storm event can push water into low-lying areas of the Seacoast, particularly in communities like Hampton Falls, Seabrook, and portions of Portsmouth that sit close to tidal waterways. Residents in those areas should monitor local emergency alerts and be prepared to move vehicles to higher ground if flooding threatens.
Storm in Context: What Granite Staters Should Know
Late May storms in New Hampshire are not unprecedented, but a system capable of producing more than a foot of snow at mountain summits, high surf advisories at the coast, and thousands of power outages simultaneously is notable. The state occupies a geographic position where coastal weather systems track along the Atlantic seaboard while cold air periodically descends from Canada, and the collision of the two can produce significant weather well into spring.
The timing during a holiday weekend amplifies the storm’s impact on residents. For those living with power outages, a few practical steps can help manage the situation safely. Keeping refrigerator and freezer doors closed as much as possible preserves food quality for several hours. Portable generators should only be operated outside and away from windows and doors to prevent carbon monoxide buildup. Anyone using a fireplace or wood stove should ensure the flue is clear before lighting a fire.
For households that experience frequent outages, investing in backup power is a consideration worth making well before the next storm arrives. A guide to the best portable power stations for home backup covers options across a range of budgets and use cases, from small units that can charge phones and run a lamp to larger systems capable of powering a refrigerator for an extended outage.
New Hampshire’s experience with damaging storms is well-documented. The state has dealt with multiple federally declared disaster events in recent years, including flooding and wind events that caused extensive infrastructure damage. A prior article examined the difficulties surrounding FEMA’s delayed disaster relief funds for New Hampshire, which illustrated the sometimes lengthy path that recovery funding travels even after a formal disaster declaration.
Residents who want to be better prepared for the next storm event should review the basics covered in our winter emergency kit guide, which applies to spring storms and summer severe weather as well. Flashlights, batteries, a battery-powered radio, and a few days of food and water represent the core of any household emergency kit regardless of the season.
When to Expect Improvement
The low-pressure system driving Saturday’s conditions was forecast to move out of the region through the afternoon and evening hours. The National Weather Service indicated that conditions would gradually improve across the state, with wind speeds diminishing and precipitation tapering off. The high wind advisory for southeastern New Hampshire was set to expire at noon, though residual gustiness and isolated showers were possible through the rest of the day.
Recovery crews for both Eversource and Unitil were expected to work through the weekend to restore the remaining outages. Most customers affected by wind-related outages during daytime events typically see restoration within 24 hours, though customers in more rural or remote areas sometimes wait longer when access roads are blocked by fallen trees or other storm debris.
Residents are encouraged to report downed lines and power outages through their utility’s app or website rather than by phone, as phone lines can become overwhelmed during large-scale outage events. The utilities’ crews work based on system priority, restoring outages that affect the largest number of customers first, then working down to individual service issues.
