Replay · AL092026
Isaias: the story
Oct 6, 21:00 UTC – Oct 11, 12:00 UTC · 26 NHC advisories. Radar, warnings, storm reports, ground stops and SEC filings, in order, with 223 links that show their evidence.
- 725 NWS warnings
- 626 storm reports
- 28 FAA airport programs
- 0 8-Ks naming Isaias
- 223 rule-based links
- 667 radar frames, 10 min apart
Chapter 1: Approach
Oct 6–7
- The replay opens on the first NHC advisory.Replay from here
Chapter 2: First impacts
Oct 7–9
NWS Tallahassee, New Orleans and Mobile issue the first Hurricane and Storm Surge Watches. The warnings follow within twelve hours.
Chapter 3: Landfall
Oct 9–10
- Isaias makes landfall near Destin, Florida as a category 2 hurricane (91 kt, 971 mb).Replay from hereNHC Tropical Cyclone Update: Hurricane Isaias (provisional)NHC operational best track (ATCF b-deck, provisional)
Chapter 4: Inland
Oct 10–11
- The replay window ends: the storm has dissipated.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 | 221 |
| R2 dashed | An airport program inside a warning that had been in effect for over 60 min (context) | 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 6, 21:00 UTC – Oct 11, 12:00 UTC | 667 |
| NWS storm-based warning polygons | NOAA National Weather Service via Iowa Environmental Mesonet | Oct 6, 21:00 UTC – Oct 11, 12:00 UTC | 725 |
| NWS Local Storm Reports | NOAA National Weather Service via Iowa Environmental Mesonet | Oct 6, 21:00 UTC – Oct 11, 12:00 UTC | 626 |
| NHC advisories and best track (provisional) | NOAA National Hurricane Center | Oct 6, 21:00 UTC – Oct 11, 12:00 UTC | 26 |
| FAA airport programs (ground stops and ground delay programs) | FAA Air Traffic Control System Command Center | Oct 6, 21:00 UTC – Oct 11, 12:00 UTC | 28 |
- 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 operational best track (provisional): NOAA/National Hurricane Center
- Airport programs: FAA Air Traffic Control System Command Center
- Filings: U.S. Securities and Exchange Commission EDGAR