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Hurricane Laura, Aug 25–28, 2020

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

Hurricane Laura, Aug 25–28, 2020

Hurricane Laura, Aug 25–28, 2020

Chapter 4 · Aftermath

24 more 8-Ks, the last on September 29.

24 8-Ks name Laura after the storm. The map marks each filer's headquarters.

18:00UTC · Fri, Aug 28, 2020 · 1:00 PM CDT

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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 · AL132020

Laura: the story

Aug 25, 06:00 UTC – Aug 28, 18:00 UTC · 65 NHC advisories. Radar, warnings, storm reports, ground stops and SEC filings, in order, with 762 links that show their evidence.

  • 1,950 NWS warnings
  • 1,306 storm reports
  • 12 FAA airport programs
  • 26 8-Ks naming Laura
  • 762 rule-based links
  • 502 radar frames, 10 min apart

Approach

Aug 25–26

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

Landfall

Aug 27

  1. Laura makes landfall near Cameron, Louisiana as a category 4 hurricane (130 kt, 939 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane LauraNHC best track (HURDAT2)

Inland

Aug 27–28

  1. First 8-K naming Laura.
    “Westlake Corp filed an 8-K on 2020-08-28 naming Hurricane Laura”
    Replay from hereWhy linked

Aftermath

Aug 28–Sep 29

  1. The replay window ends before the storm dissipates.Replay from here
  2. The aftermath: 24 8-Ks name Laura after the storm, the last on 2020-09-29.Replay from here

How we link records

RuleWhat it checksLinks
R4 solidA storm report inside a warning polygon while it was in effect721
R3 solidAn SEC 8-K that names the storm26
R2 dashedAn airport program inside a warning that had been in effect for over 60 min (context)3
R1c solidA weather airport program inside a convective warning or watch, within 60 min of issuance12

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 MesonetAug 25, 06:00 UTC – Aug 28, 18:00 UTC502
NWS storm-based warning polygonsNOAA National Weather Service via Iowa Environmental MesonetAug 25, 06:00 UTC – Aug 28, 18:00 UTC1,950
NWS Local Storm ReportsNOAA National Weather Service via Iowa Environmental MesonetAug 25, 06:00 UTC – Aug 28, 18:00 UTC1,306
NHC advisories and best trackNOAA National Hurricane CenterAug 25, 06:00 UTC – Aug 28, 18:00 UTC65
FAA airport programs (ground stops and ground delay programs)FAA Air Traffic Control System Command CenterAug 25, 06:00 UTC – Aug 28, 18:00 UTC12
SEC EDGAR 8-K filingsU.S. Securities and Exchange CommissionAug 25, 06:00 UTC – Aug 28, 18:00 UTC26
  • 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