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Winter Storm of March 13–15, 2023

1 of 2 · The storm's data
forty°seventy

Winter Storm of March 13–15, 2023

Winter Storm of March 13–15, 2023

Chapter 2 · The bomb

The low bombs: 19 mb in 24 hours.

To 980 mb by 18:00 UTC Mar 14, its deepest. Winds reach 71 mph off Frenchboro, Maine, at 20:00 UTC.

18:00UTC · Tue, Mar 14, 2023 · 2:00 PM EDT

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Replay of past events. For current weather and warnings, see weather.gov. Links are rule-based facts. About and credits

Replay · WS20230313

Winter Storm of March 13–15, 2023: the story

Mar 13, 18:00 UTC – Mar 15, 18:00 UTC. Radar showing snow and rain, winter warnings, storm reports and the surface low's track from the Weather Prediction Center, in order. NCEI's Northeast Snowfall Impact Scale rates it Category 2, Significant (NESIS 2.99), and ranks it 53rd on its list.

  • 58 NWS warnings
  • 2,645 storm reports
  • 16 WPC surface-low analyses
  • 9 FAA airport programs
  • 2 rule-based links
  • 289 radar frames, 10 min apart

The storm arrives

Mar 13–14

The replay opens as the storm deepens off the coast.

Replay from here

The bomb

Mar 14

  1. Bombogenesis: the low's pressure has fallen 19 mb in 24 hours, to 980 mb.Replay from here
  2. The low is at its deepest: 980 mb.Replay from here
  3. The strongest wind reported: 71 mph at 16 SE Frenchboro, ME.Replay from here

The snow totals

Mar 15

  1. The largest snow report: 43 in at Beacon, NY.Replay from here

How we link records

RuleWhat it checksLinks
R2 dashedAn airport program inside a warning that had been in effect for over 60 min (context)2

Solid lines mark rules that passed an independent check; dashed lines are context. Links are rule-based facts: each shows two records that overlap in place and time. How we know

Where this storm's data comes from

Every layer, the provider behind it and the period it covers.

LayerProviderPeriodRecords
MRMS SeamlessHSRNOAA/NSSL via Iowa Environmental MesonetMar 13, 18:00 UTC – Mar 15, 18:00 UTC289
NWS storm-based warning polygonsNOAA National Weather Service via Iowa Environmental MesonetMar 13, 18:00 UTC – Mar 15, 18:00 UTC58
NWS Local Storm ReportsNOAA National Weather Service via Iowa Environmental MesonetMar 13, 18:00 UTC – Mar 15, 18:00 UTC2,645
WPC coded surface bulletinsNOAA Weather Prediction Center via Iowa Environmental MesonetMar 13, 18:00 UTC – Mar 15, 18:00 UTC16
NOHRSC snowfallNOAA National Operational Hydrologic Remote Sensing CenterMar 13, 18:00 UTC – Mar 15, 18:00 UTC
FAA airport programs (ground stops and ground delay programs)FAA Air Traffic Control System Command CenterMar 13, 18:00 UTC – Mar 15, 18:00 UTC9
  • Radar: NOAA/NSSL MRMS SeamlessHSR, via the Iowa Environmental Mesonet (IEM), Iowa State University
  • Warnings: NOAA/NWS, storm-based polygons via the Iowa Environmental Mesonet
  • Storm reports: NOAA/NWS Local Storm Reports via the Iowa Environmental Mesonet
  • Storm track: NOAA/NWS Weather Prediction Center coded surface bulletins, via the Iowa Environmental Mesonet
  • Airport programs: FAA Air Traffic Control System Command Center
  • Filings: U.S. Securities and Exchange Commission EDGAR
  • Snowfall: NOAA/NWS National Operational Hydrologic Remote Sensing Center (NOHRSC)