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Hurricane Dorian, Sep 4–7, 2019

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Hurricane Dorian, Sep 4–7, 2019

Hurricane Dorian, Sep 4–7, 2019

Chapter 1 · Approach

Dorian moves up the Southeast coast.

The replay opens as Dorian nears the US.

14:20UTC · Wed, Sep 4, 2019 · 10:20 AM EDT

Space play/pause · ←/→ 10 min · Enter opens a link

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

Replay · AL052019

Dorian: the story

Sep 4, 14:20 UTC – Sep 7, 22:40 UTC · 117 NHC advisories. Radar, warnings, storm reports, ground stops and SEC filings, in order, with 185 links that show their evidence.

  • 845 NWS warnings
  • 388 storm reports
  • 26 FAA airport programs
  • 28 8-Ks naming Dorian
  • 185 rule-based links
  • 483 radar frames, 10 min apart

Approach

Sep 4–6

  1. The replay opens as the storm nears the US.Replay from here

Landfall

Sep 6

  1. Dorian makes landfall Cape Hatteras, North Carolina as a category 2 hurricane (85 kt, 956 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane DorianNHC best track (HURDAT2)

Out to sea

Sep 6–7

The replay window ends before the storm dissipates.

Replay from here

Aftermath

Sep 7–Oct 23

  1. The replay window ends before the storm dissipates.Replay from here
  2. The aftermath: 25 8-Ks name Dorian after the storm, the last on 2019-10-23.Replay from here

How we link records

RuleWhat it checksLinks
R4 solidA storm report inside a warning polygon while it was in effect150
R3 solidAn SEC 8-K that names the storm28
R2 dashedAn airport program inside a warning that had been in effect for over 60 min (context)6
R1c solidA weather airport program inside a convective warning or watch, within 60 min of issuance1

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 MesonetSep 4, 14:20 UTC – Sep 7, 22:40 UTC483
NWS storm-based warning polygonsNOAA National Weather Service via Iowa Environmental MesonetSep 4, 14:20 UTC – Sep 7, 22:40 UTC845
NWS Local Storm ReportsNOAA National Weather Service via Iowa Environmental MesonetSep 4, 14:20 UTC – Sep 7, 22:40 UTC388
NHC advisories and best trackNOAA National Hurricane CenterSep 4, 14:20 UTC – Sep 7, 22:40 UTC117
FAA airport programs (ground stops and ground delay programs)FAA Air Traffic Control System Command CenterSep 4, 14:20 UTC – Sep 7, 22:40 UTC26
SEC EDGAR 8-K filingsU.S. Securities and Exchange CommissionSep 4, 14:20 UTC – Sep 7, 22:40 UTC28
  • 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
  • Advisories and best track: NOAA/National Hurricane Center
  • Airport programs: FAA Air Traffic Control System Command Center
  • Filings: U.S. Securities and Exchange Commission EDGAR