What this is
ClimateWatch NYC puts public datasets about the city's heat, water, air, coast and snow next to each other on maps, neighborhood by neighborhood. Most of these datasets are published separately and read separately; the point here is to see them against one another — an outage feed against heat vulnerability, a sewer outfall against the beach downstream of it, a forecast against what actually arrived.
Some of these sources are live feeds that show only the current state — today's outages, today's beach advisory, today's forecast — and the publisher keeps no archive. This site saves a snapshot each time it checks. For those feeds, the snapshots kept here are the only record of what the source said on any given day.
The six atlases
- Flood Atlas/flood
DEP's modelled flood depths, 311 flooding reports, FloodNet's street sensors, catch basins and rain gardens.
- Air Atlas/air
Sixteen years of the Community Air Survey across 42 neighborhoods, with DEP complaints and DOHMH health estimates.
- Coastal Atlas/coast
FEMA's current flood zones, the floodplains projected for the 2050s and 2080s, and the hurricane evacuation zones.
- Snow Atlas/snow
Every street DSNY's snow vehicles reached and when, storm by storm since 2016, with salt spread and 311 calls.
- Harbor Atlas/harbor
DEP's harbor water sampling against the combined sewer outfalls and the beaches downstream of them.
- Forecast Archive/forecast
Every National Weather Service forecast recorded for the five boroughs, kept issue by issue.
How it is recorded
A recorder polls the live sources on a fixed cadence and writes each new snapshot to a database. The dashboards read from that archive through a read-only API; nothing on the site writes back to it. A separate watchdog probes every upstream the dashboards depend on and raises an alarm when one goes down or changes shape, so a broken feed is noticed before it quietly becomes a gap.
- ConEd outages
- every 5 minutes
- FloodNet sensors
- every 15 minutes
- NWS forecasts
- every 20 minutes
- NWS alerts
- every 5 minutes
Where the data comes from
- NYC Open Data — DEP, DSNY, DOHMH, NYC Planning and NYC Emergency Management datasets
- FloodNet — street-level flood sensors
- FEMA — regulatory flood zones
- National Weather Service — forecasts and alerts
- Con Edison — the public outage map
- NYC Planning Labs GeoSearch — address lookup
- CARTO — basemap tiles
Terms and disclaimer
Nothing here is an official city service. Data is shown as published, delays and errors included; for emergencies and official guidance use NYC Emergency Management and 311.
No warranty
This site is provided as is, without warranty of any kind. Snapshots can be late, feeds can break, and models can be wrong; do not rely on anything here for a decision about your safety or property. The operators accept no liability for any loss arising from its use.
Data and attribution
Datasets belong to their publishers and are reused under their own terms: NYC Open Data under the NYC Open Data terms of use, FEMA and National Weather Service material as United States public domain, FloodNet data under the FloodNet data policy, and Con Edison's outage map as published. Basemap tiles are © CARTO and OpenStreetMap contributors. The skyline photograph is by Benny Rotlevy.
The API
The /api endpoints exist to serve these dashboards. Keyed access, where granted, comes with no uptime guarantee, is rate limited, and may be revoked or changed without notice. Please cache what you fetch and identify your client.
Privacy
There are no accounts and no advertising. The site keeps ordinary server logs and reports application errors to a monitoring service; your light/dark preference is stored in your own browser and nowhere else.
These terms may change; the version on this page is the one in force.