April 2021 nor'easter
| Meteorological history | |
|---|---|
| Formed | April 14, 2021 |
| Exited land | April 17, 2021 |
| Dissipated | April 20, 2021 |
| Nor'easter | |
| Highest winds | 50 mph (85 km/h) (1-minute sustained winds) |
| Lowest pressure | 988 mbar (hPa); 29.18 inHg |
| Maximum rainfall | 2.59 in (66 mm) at Rockland, Maine |
| Maximum snowfall or ice accretion | Snow – 14 in (36 cm) at Lempster, New Hampshire |
| Overall effects | |
| Areas affected | Northeastern United States, New England, Atlantic Canada |
| Power outages | > 20,000 |
Part of the 2020–21 North American winter | |
A significant late-season nor'easter, sometimes referred to as the 2021 Spring nor'easter, impacted much of New England with heavy snowfall, gusty winds, thundersnow, and near-whiteout conditions from April 15–17, 2021. The system originated from a weak frontal system late on April 14 over North Carolina, which moved into the ocean the next day and began to strengthen. The low-pressure steadily deepened as it moved up the East Coast, and developed an eye-like feature just prior to peak intensity. It prompted a fairly large area of Winter Storm Warnings across interior sections of New England, with Winter Weather Advisories being issued closer to the coast. Over 20,000 customers lost power at the height of the storm on April 16 due to heavy wet snow, and near-whiteout conditions were reported in many areas. Several injuries, some serious, occurred as well, mostly due to traffic incidents on poorly-treated roadways during the storm. Damage estimates from the system are currently not calculated.