Replay · AL082020
Hanna: the story
Jul 23, 22:00 UTC – Jul 26, 18:00 UTC · 31 NHC advisories. Radar, warnings, storm reports, ground stops and SEC filings, in order, with 345 links that show their evidence.
- 1,686 NWS warnings
- 601 storm reports
- 5 FAA airport programs
- 2 8-Ks naming Hanna
- 345 rule-based links
- 409 radar frames, 10 min apart
Chapter 1: Approach
Jul 23–25
- The replay opens as the storm nears the US.Replay from here
Chapter 2: Landfall
Jul 25–26
- Hanna makes landfall Padre Island, Texas as a category 1 hurricane (80 kt, 973 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane HannaNHC best track (HURDAT2)
- Hanna makes landfall eastern Kenedy County, about 10 n mi north-northwest of Port Mansfield, Texas as a category 1 hurricane (80 kt, 974 mb).Replay from hereNHC Tropical Cyclone Report: Hurricane HannaNHC best track (HURDAT2)
Chapter 3: Inland
Jul 26
The replay window ends: the storm has dissipated.
Chapter 4: Aftermath
Jul 26–Aug 20
- The replay window ends: the storm has dissipated.Replay from here
- First 8-K naming Hanna.
“Kansas City Southern filed an 8-K on 2020-08-04 naming Hurricane Hanna”
Replay from hereWhy linked - The aftermath: 2 8-Ks name Hanna after the storm, the last on 2020-08-20.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 | 342 |
| R3 solid | An SEC 8-K that names the storm | 2 |
| R1c solid | A weather airport program inside a convective warning or watch, within 60 min of issuance | 1 |
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 | Jul 23, 22:00 UTC – Jul 26, 18:00 UTC | 409 |
| NWS storm-based warning polygons | NOAA National Weather Service via Iowa Environmental Mesonet | Jul 23, 22:00 UTC – Jul 26, 18:00 UTC | 1,686 |
| NWS Local Storm Reports | NOAA National Weather Service via Iowa Environmental Mesonet | Jul 23, 22:00 UTC – Jul 26, 18:00 UTC | 601 |
| NHC advisories and best track | NOAA National Hurricane Center | Jul 23, 22:00 UTC – Jul 26, 18:00 UTC | 31 |
| FAA airport programs (ground stops and ground delay programs) | FAA Air Traffic Control System Command Center | Jul 23, 22:00 UTC – Jul 26, 18:00 UTC | 5 |
| SEC EDGAR 8-K filings | U.S. Securities and Exchange Commission | Jul 23, 22:00 UTC – Jul 26, 18:00 UTC | 2 |
- 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
