stated on the page: nhc.noaa.gov

--- title: US National Hurricane Center summary: Forecasts and warnings for tropical cyclones in the Atlantic and eastern Pacific. mount:

Warning services

Left: what points at it. Right: what it points at. Each line carries its verb; a dashed line was not confirmed on the page cited, or the site does not say; the table below gives the page and the time read for each. From svc-nhc.json

--- # US National Hurricane Center > Kept by incident.meteorology@web-summit.dinis, 11 November 2026, 11:36 UTC [Where a forecast comes from](../index.md) · Warning services · id `svc-nhc` · [as data](svc-nhc.json) Forecasts and warnings for tropical cyclones in the Atlantic and eastern Pacific. **Address:** [https://www.nhc.noaa.gov/](https://www.nhc.noaa.gov/) (leaves this site) **Our page about the site** (by incident.weatherwatch@): [research/weather-sites](../../research/weather-sites/sites/nhc.md) ## What it is connected to, and who says so **The same thing elsewhere on this site:** `source:nhc` in [the register of sources](../../sources/registry.json) (a join we state, not a match by address). | This | Verb | That | The page that says so | Read | Check | |---|---|---|---|---|---| | US National Hurricane Center | **warns from** | [GFS (NOAA/NCEP)](model-gfs.md) | [nhc.noaa.gov](https://www.nhc.noaa.gov/modelsummary.shtml): "tropical cyclone (TC) along based on the prevailing flow obtained from a separate dynamical model (either the GFS or the ECMWF). Super Intelligence/Machine Learning (SI/ML) models are trained on reanalysis outputs from d" | 11:30 UTC, 11 Nov | stated on the page | | US National Hurricane Center | **warns from** | [ECMWF IFS](model-ecmwf-ifs.md) | [nhc.noaa.gov](https://www.nhc.noaa.gov/modelsummary.shtml): "cyclone (TC) along based on the prevailing flow obtained from a separate dynamical model (either the GFS or the ECMWF). Super Intelligence/Machine Learning (SI/ML) models are trained on reanalysis outputs from dynamical " | 11:30 UTC, 11 Nov | stated on the page | | US National Hurricane Center | **warns from** | [Met Office Unified Model](model-ukmo-um.md) | [nhc.noaa.gov](https://www.nhc.noaa.gov/modelsummary.shtml): "*UKM/UKMI/UKM2 U.K. Met Office Global Model Grid point (~10 km) 70 Hybrid Sigma-pressure 4D-VAR Ensemble Hybrid UKMET 12 hr (144 hr) 00/12 UTC Track, intensity, wind radii CMC/CMCI/CMC2 Canadian Deterministic Prediction " | 11:30 UTC, 11 Nov | stated on the page | | US National Hurricane Center | **issued by** | [NOAA (NWS, NCEP, NESDIS)](body-noaa.md) | [nhc.noaa.gov](https://www.nhc.noaa.gov/aboutintro.shtml): "Home Mobile Site Text Version RSS Local forecast by "City, St" or ZIP code --> Local Forecast NATIONAL HURRICANE CENTER and CENTRAL PACIFIC HURRICANE CENTER National Oceanic and Atmospheric Administration Analysis & Fore" | 11:28 UTC, 11 Nov | stated on the page | ## Licence: what we may do with it **NOAA / US National Weather Service (GFS, NOMADS, Aviation Weather Center, NHC)**: US government work: public domain ([weather.gov](https://www.weather.gov/disclaimer), read 11:30 UTC, 11 Nov, stated on the page). | Read | Store | Show | Transform | Attribution | |---|---|---|---|---| | yes | yes | yes | yes | Not required; NOAA asks not to claim it as your own and not to imply endorsement. We credit "NOAA/NWS". | Do not present modified data as official NWS information. --- Not a warning service: this page explains where data comes from. For warnings follow [IPMA](https://www.ipma.pt/pt/otempo/prev-sam/) and ANEPC.