Replay · WS20240212
Winter Storm of February 12–13, 2024: the story
Feb 12, 18:00 UTC – Feb 14, 04:00 UTC. Radar showing snow and rain, winter warnings, storm reports and the surface low's track from the Weather Prediction Center, in order.
- 38 NWS warnings
- 1,624 storm reports
- 9 WPC surface-low analyses
- 1 FAA airport programs
- 2 rule-based links
- 205 radar frames, 10 min apart
Chapter 1: The setup
Feb 12–13
The replay opens with the first weather chart that shows it.
Chapter 2: The snow totals
Feb 13–14
- The largest snow report: 15.5 in at 3 ENE Farmington, CT.Replay from here
Chapter 3: The bomb
Feb 14
- Bombogenesis: the low's pressure has fallen 30 mb in 24 hours, to 964 mb.Replay from here
- The low is at its deepest: 964 mb.Replay from here
How we link records
| Rule | What it checks | Links |
|---|---|---|
| R2 dashed | An airport program inside a warning that had been in effect for over 60 min (context) | 1 |
| R1o dashed | The same, for other hazards such as floods | 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 | Feb 12, 18:00 UTC – Feb 14, 04:00 UTC | 205 |
| NWS storm-based warning polygons | NOAA National Weather Service via Iowa Environmental Mesonet | Feb 12, 18:00 UTC – Feb 14, 04:00 UTC | 38 |
| NWS Local Storm Reports | NOAA National Weather Service via Iowa Environmental Mesonet | Feb 12, 18:00 UTC – Feb 14, 04:00 UTC | 1,624 |
| WPC coded surface bulletins | NOAA Weather Prediction Center via Iowa Environmental Mesonet | Feb 12, 18:00 UTC – Feb 14, 04:00 UTC | 9 |
| NOHRSC snowfall | NOAA National Operational Hydrologic Remote Sensing Center | Feb 12, 18:00 UTC – Feb 14, 04:00 UTC | |
| FAA airport programs (ground stops and ground delay programs) | FAA Air Traffic Control System Command Center | Feb 12, 18:00 UTC – Feb 14, 04:00 UTC | 1 |
- 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
- Storm track: NOAA/NWS Weather Prediction Center coded surface bulletins, via the Iowa Environmental Mesonet
- Airport programs: FAA Air Traffic Control System Command Center
- Filings: U.S. Securities and Exchange Commission EDGAR
- Snowfall: NOAA/NWS National Operational Hydrologic Remote Sensing Center (NOHRSC)
