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Hurricane Harvey, Aug 24–27, 2017

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forty°seventy

Hurricane Harvey, Aug 24–27, 2017

Hurricane Harvey, Aug 24–27, 2017

Chapter 1 · Approach

Harvey strengthens on its way to Texas.

The replay opens as Harvey nears the US.

03:00UTC · Thu, Aug 24, 2017 · 10:00 PM CDT Wed

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 · AL092017

Harvey: the story

Aug 24, 03:00 UTC – Aug 27, 18:00 UTC · 77 NHC advisories. Radar, warnings, storm reports, ground stops and SEC filings, in order, with 495 links that show their evidence.

  • 1,209 NWS warnings
  • 340 storm reports
  • 18 FAA airport programs
  • 129 8-Ks naming Harvey
  • 495 rule-based links
  • 523 radar frames, 10 min apart

Approach

Aug 24–25

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

Landfall

Aug 25–26

  1. Harvey makes landfall the northern end of San Jose Island, about 5 n mi east of Rockport, Texas as a category 4 hurricane (115 kt, 937 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane HarveyNHC best track (HURDAT2)
  2. Harvey makes landfall the northeast coast of Copano Bay, west of Holiday Beach, Texas as a category 3 hurricane (105 kt, 948 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane HarveyNHC best track (HURDAT2)

The stall

Aug 26–27

The replay window ends on Aug 27, before the storm dissipates.

Replay from here

Aftermath

Aug 27–Oct 11

  1. The replay window ends before the storm dissipates.Replay from here
  2. First 8-K naming Harvey.
    “SM Energy filed an 8-K on 2017-08-28 naming Hurricane Harvey”
    Replay from hereWhy linked
  3. The aftermath: 129 8-Ks name Harvey after the storm, the last on 2017-10-11.Replay from here

How we link records

RuleWhat it checksLinks
R4 solidA storm report inside a warning polygon while it was in effect299
R3 solidAn SEC 8-K that names the storm129
R2 dashedAn airport program inside a warning that had been in effect for over 60 min (context)53
R5 dashedAn airport program inside the storm's own tropical watch or warning5
R1o dashedThe same, for other hazards such as floods9

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 24, 03:00 UTC – Aug 27, 18:00 UTC523
NWS storm-based warning polygonsNOAA National Weather Service via Iowa Environmental MesonetAug 24, 03:00 UTC – Aug 27, 18:00 UTC1,209
NWS Local Storm ReportsNOAA National Weather Service via Iowa Environmental MesonetAug 24, 03:00 UTC – Aug 27, 18:00 UTC340
NHC advisories and best trackNOAA National Hurricane CenterAug 24, 03:00 UTC – Aug 27, 18:00 UTC77
FAA airport programs (ground stops and ground delay programs)FAA Air Traffic Control System Command CenterAug 24, 03:00 UTC – Aug 27, 18:00 UTC18
SEC EDGAR 8-K filingsU.S. Securities and Exchange CommissionAug 24, 03:00 UTC – Aug 27, 18:00 UTC129
  • 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