Replay · AL282020
Zeta: the story
Oct 27, 08:00 UTC – Oct 29, 22:00 UTC · 41 NHC advisories. Radar, warnings, storm reports, ground stops and SEC filings, in order, with 82 links that show their evidence.
- 400 NWS warnings
- 1,181 storm reports
- 7 FAA airport programs
- 6 8-Ks naming Zeta
- 82 rule-based links
- 373 radar frames, 10 min apart
Chapter 1: Approach
Oct 27–28
- The replay opens as the storm nears the US.Replay from here
Chapter 2: Landfall
Oct 28–29
- Zeta makes landfall near Cocodrie, Louisiana as a category 3 hurricane (100 kt, 970 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane ZetaNHC best track (HURDAT2)
Chapter 3: Inland
Oct 29
The replay window ends before the storm dissipates.
Chapter 4: Aftermath
Oct 29–Dec 7
- The replay window ends before the storm dissipates.Replay from here
- The aftermath: 5 8-Ks name Zeta after the storm, the last on 2020-12-07.Replay from here
How we link records
| Rule | What it checks | Links |
|---|---|---|
| R4 solid | A storm report inside a warning polygon while it was in effect | 71 |
| R3 solid | An SEC 8-K that names the storm | 6 |
| R2 dashed | An airport program inside a warning that had been in effect for over 60 min (context) | 3 |
| R5 dashed | An airport program inside the storm's own tropical watch or warning | 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.
| Layer | Provider | Period | Records |
|---|---|---|---|
| MRMS SeamlessHSR | NOAA/NSSL via Iowa Environmental Mesonet | Oct 27, 08:00 UTC – Oct 29, 22:00 UTC | 373 |
| NWS storm-based warning polygons | NOAA National Weather Service via Iowa Environmental Mesonet | Oct 27, 08:00 UTC – Oct 29, 22:00 UTC | 400 |
| NWS Local Storm Reports | NOAA National Weather Service via Iowa Environmental Mesonet | Oct 27, 08:00 UTC – Oct 29, 22:00 UTC | 1,181 |
| NHC advisories and best track | NOAA National Hurricane Center | Oct 27, 08:00 UTC – Oct 29, 22:00 UTC | 41 |
| FAA airport programs (ground stops and ground delay programs) | FAA Air Traffic Control System Command Center | Oct 27, 08:00 UTC – Oct 29, 22:00 UTC | 7 |
| SEC EDGAR 8-K filings | U.S. Securities and Exchange Commission | Oct 27, 08:00 UTC – Oct 29, 22:00 UTC | 6 |
- 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
