Threat for ice accumulation continues for some parts of New Hampshire amid storm

Wintry Mix Continues: Freezing rain and drizzle are impacting central and southern NH, while snow and mix affect northern regions.

Ice Accumulation Threat: Significant icing is possible, particularly in western and southwestern NH (Hillsborough, Merrimack, Sullivan, Cheshire counties under Winter Storm Warning until noon Sunday).

Hazardous Travel: Sunday morning presents the highest risk for slippery roads due to freezing temperatures.

Warming Trend: Temperatures will rise above freezing Sunday afternoon in the south, changing ice to rain. Monday will be much warmer (50s/60s).

Monday Showers/Thunder: Warmer temperatures bring rain showers, potentially heavy with thunder Monday evening.

Why this matters: Ice accumulation creates dangerous driving conditions and increases the risk of power outages. The rapid temperature swing highlights the dynamic nature of spring weather patterns in the region.

A Winter Storm Warning is active until noon Sunday for Hillsborough, Merrimack, Sullivan, and Cheshire counties due to the potential for significant ice accumulation.

A Winter Weather Advisory covers the rest of the state.

The highest risk for icing is in higher terrain and western/southwestern NH (Grafton, Sullivan, Cheshire counties).

Who This Affects Most: Commuters and residents in the warning/advisory areas, particularly those traveling Sunday morning. Power outages are possible where ice accumulates significantly.

Sunday Morning: Most dangerous period for travel due to freezing precipitation on roads and surfaces.

Sunday Afternoon: Temperatures are expected to climb above freezing (32°F) in southern and central areas, transitioning the precipitation to plain rain and stopping further ice accumulation there. Northern areas may see lingering freezing rain/mix.

Sunday Evening/Night: Showers return, mostly as rain in the south, potentially still mixed precipitation in the north.

Monday: A dramatic warm-up occurs. Highs surge into the 50s, possibly 60°F near the southern border. Scattered morning showers are followed by potential downpours and thunder later in the evening.

Tuesday & Wednesday: Conditions clear, leading to dry days with temperatures in the 40s.

Avoid unnecessary travel Sunday morning if possible.

If driving, allow extra time, reduce speed, and check road conditions before heading out.

Be prepared for potential power outages in areas with significant icing.

Stay updated via weather alerts. The WMUR app for Apple or Android devices offers notifications.

Q: When will the hazardous icy conditions improve?

A: Travel conditions are expected to be worst Sunday morning (March 30th). Conditions should gradually improve Sunday afternoon as temperatures rise above freezing, changing precipitation to rain, especially in southern areas. Ice accumulation threat ends as warmer air arrives Monday.

Q: What is the forecast for Monday?

A: Monday will be significantly warmer, with highs reaching the 50s across the state, potentially touching 60 degrees in some southern communities. Expect scattered rain showers, possibly intensifying to downpours with a chance of thunder in the evening.

Be Cautious Sunday: Expect hazardous travel, especially in the morning, due to ice. Delay travel if possible.

Conditions Improve: Things get better Sunday afternoon/evening as temperatures rise above freezing, especially south.

Prepare for Monday: Expect a very mild day, but be ready for rain showers and possible evening downpours/thunder.

Stay Informed: Keep track of alerts and changing conditions through local news or weather apps.

Source 1: Threat for ice accumulation continues for some parts of New Hampshire amid storm - WMUR

Source 2: New Hampshire hourly storm timeline: March 30-31, 2025 - WMUR (Assumed link based on context, actual URL not fully provided in snippet)

Source 3: New Hampshire hourly weather: Track wintry mix, rain Sunday; more rain Monday - Yahoo News / WMUR