The snowstorm of March 1 to 3, 2018

The Regional Snowfall Index is NOAA’s ranking of snowstorms east of the Rockies by how much snow fell, over how wide an area and on how many people, region by region: the area and the population above four snowfall thresholds set for each region, weighted against that region’s own history. A storm is scored in each region it reached, on a scale from 1, notable, to 5, extreme.

Events

247

Deaths

4

Injuries

10

Damage

$3.6 million

Episodes

24

Every winter weather episode the Weather Service filed east of the Rockies in these dates. A few may belong to another system on the same days. Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

• Winter Weather in Michigan, February 28, 20184 eventsBriefly heavy mixed precipitation fell across portions of central Upper Michigan early on the 28th.
• Winter Storm in Alaska, February 27 to 28, 20182 eventsA weather front moved across the northern panhandle that spread moisture across the area, with cold air trapped in Lynn Canal. Periods of heavy snow developed along the Haines Road then developed on the Eastern Gulf Coast during the night of 2/27.
• Heavy Snow in Washington, February 28, 20182 eventsBeginning during the evening of the 28th of February and continuing through the 2nd of March a slow moving frontal band brought an extended period of wet snow to the Cascades, The Okanogan Highlands and the Northeast Mountains and the higher terrain of the western Columbia and…
• Winter Storm in Idaho, March 1 to 5, 201811 eventsAn extremely powerful Pacific storm system spread into the central mountains on March 1st and overspread all of southeast Idaho on the 2nd and continued in the far east through the 4th.
• Winter Storm in Michigan, March 1, 20185 eventsA strengthening low pressure system moved up across the Ohio valley, bringing an area of heavy, wet snow to the Detroit Metro Area. The onset of precipitation was rain before it quickly changed over to all snow by the early afternoon. Snowfall rates reached 1-2 per hour.
• Winter Storm in Ohio, March 1 to 3, 2018$900,000 · 5 eventsAn area of deepening low pressure moved up the Ohio Valley on March 1st. The low moved across the southeastern corner of Ohio during the afternoon hours. A large area of precipitation fell to the north of the low track.
• Blizzard and Heavy Snow in New York, March 1 to 2, 2018$400,000 · 16 eventsA complex area of low pressure tracked from the Ohio Valley and southeast United States during the afternoon of the 1st and intensified into a major winter storm over Long Island by the morning of the 2nd.
• Winter Storm in Pennsylvania, March 1 to 2, 2018$450,000 · 3 eventsAn area of deepening low pressure moved up the Ohio Valley on March 1st. The low moved across the southeastern corner of Ohio during the afternoon hours. A large area of precipitation fell to the north of the low track.
• Winter Storm and Winter Weather in New York, March 1 to 2, 20181 death · 3 eventsA rapidly intensifying low pressure developed along the Middle Atlantic during the early morning hours on March 2, 2018. The low moved slowly off the coast and became nearly stationary near the 40 N/70 W benchmark.
• Winter Storm in New York, March 1 to 2, 2018$555,000 · 17 eventsA weak low pressure strengthened as it moved across Pennsylvania and merged with a low along the eastern coast.
• Winter Weather in Connecticut, March 1 to 2, 20181 eventA rapidly intensifying low pressure developed along the Middle Atlantic during the early morning hours on March 2, 2018. The low moved slowly off the coast and became nearly stationary near the 40 N/70 W benchmark.
• Winter Storm and Winter Weather in New Jersey, March 1 to 2, 20182 eventsA rapidly intensifying low pressure developed along the Middle Atlantic during the early morning hours on March 2, 2018. The low moved slowly off the coast and became nearly stationary near the 40 N/70 W benchmark.
• Winter Storm and High Wind in Pennsylvania, March 1 to 2, 201852 kt wind · 17 eventsLow pressure crossed central Pennsylvania before rapidly intensifying as it pulled off the East Coast. As the storm pulled colder air in behind it, rain changed over to snow across much of central Pennsylvania.
• Winter Storm and Coastal Flood in Massachusetts, March 2 to 4, 20181 death · 2 injured · $449,000 · 84 kt wind · 25 eventsLow pressure moving out of the Ohio Valley passed south of Southern New England on the 2nd and moved out to sea on the 3rd.
• Winter Weather in West Virginia, March 2, 20182 eventsCold air flowing over the mountains caused snow for locations along and west of the Allegheny Front.
• Winter Storm and Winter Weather in New York, March 2, 201827 eventsAn area of low pressure rapidly intensified off the coast of Long Island on March 2nd, 2018. A large swath of tropical moisture was fed into the storm and wrapped back into the advancing cold air, resulting in heavy, wet snowfall across eastern New York.
• Winter Storm and Winter Weather in Vermont, March 2, 20183 eventsAn area of low pressure rapidly intensified off the coast of Long Island on March 2nd, 2018. A large swath of tropical moisture was fed into the storm, resulting in a period of moderate to heavy precipitation throughout the day.
• Winter Storm in Massachusetts, March 2, 20182 eventsAn area of low pressure rapidly intensified off the coast of Long Island on March 2nd, 2018. A large swath of tropical moisture was fed into the storm, resulting in a period of moderate to heavy precipitation throughout the day.
• Winter Weather in Connecticut, March 2, 20182 eventsAn area of low pressure rapidly intensified off the coast of Long Island on March 2nd, 2018. A large swath of tropical moisture was fed into the storm, resulting in a period of moderate to heavy precipitation throughout the day.
• Winter Storm and High Wind in Utah, March 2 to 4, 20181 injured · $85,000 · 70 kt wind · 14 eventsMarch came in like a lion across Utah, as a storm system produced strong winds on March 2, followed by widespread heavy snowfall across the state.
• Winter Storm and High Wind in Pennsylvania, March 2, 20181 death · 6 injured · 54 kt wind · 25 eventsA cold front stalled across the region on March 1st. Meanwhile, a wave of low pressure developed along this front in the Ohio Valley and move eastward, explosively deepening just southeast of Long Island on March 2nd.
• Blizzard and Heavy Snow in Pennsylvania, March 2, 2018$650,000 · 7 eventsA complex area of low pressure tracked from the Ohio Valley and southeast United States from the afternoon of the 1st and intensified into a major winter storm over Long Island by the morning of the 2nd.
• Winter Storm and Flooding in New Jersey, March 2 to 4, 20181 death · 1 injured · $100,000 · 71 kt wind · 48 eventsA cold front stalled across the region on March 1st. Meanwhile, a wave of low pressure developed along this front in the Ohio Valley and move east, deepening just southeast of Long Island on March 2nd.
• Winter Storm in Montana, March 4, 20184 eventsAn upper-level shortwave trough moved from the Pacific Northwest and northern California to central Montana and western Wyoming from the early evening of March 3rd through late evening of March 4th.

The snowstorm of January 3 to 5, 2018The snowstorm of March 5 to 8, 2018Snow nowEvery winter storm filed

NOAA NCEI Regional Snowfall Index, and the Storm Events Database for the episodes.