WeatherNext 3 forecast predictions are available across multiple Google Cloud
surfaces, including **Google Cloud Storage (Zarr v3)** , **Google Earth Engine** ,
and **Google BigQuery**.

Follow these steps to request access, choose the best surface for your
workflow, and run your first query.

> [!NOTE]
> WeatherNext predictions are provided "as-is" for informational purposes and
> are not official severe weather warnings. Always defer to official alerts from
> local emergency authorities. For more details, see the
> [Terms of Service and
> Disclaimers](https://developers.google.com/weathernext/guides/disclaimers).

*** ** * ** ***

## Step 1: Request data access

WeatherNext real-time operational datasets are accessible upon request. Submit
the access form with your Google Cloud account or service account email to be
added to the allowlist:

> [!NOTE]
> **Observational datasets:** Looking for
> [PARDIG](https://developers.google.com/weathernext/guides/pardig.md.txt) (15-minute global precipitation
> estimates) or [SatWeave](https://developers.google.com/weathernext/guides/satweave.md.txt) (hourly
> geostationary satellite mosaics)? Both observational datasets are publicly
> accessible under CC BY 4.0 and don't require submitting a data access request
> form.

### WeatherNext Data Request Form

Requests are reviewed on a rolling basis and are typically approved within **5--7 business days**.
[Open Data Request Form →](https://docs.google.com/forms/d/e/1FAIpQLSeCf1JY8G78UDWzbm0ly9kJxfSjUIJT5WyMR_HiNqCm-IHIBg/viewform)

### Account requirements \& FAQs

- **What email address should I provide on the form?**   
  Provide the email address associated with your Google Account (such as your company Google Workspace email or personal `@gmail.com`) that you use to log into Google Cloud Console, BigQuery, or Earth Engine. Google Cloud service account emails (`...@<project-id>.iam.gserviceaccount.com`) are also accepted for automated workloads and pipelines.
- **Do I need an existing paid Google Cloud contract?**   
  No. Anyone with a Google Account, including researchers, students, and non-Google Cloud customers can access the data. If you don't have a Google Cloud account yet, you can [create a free Google Cloud account](https://cloud.google.com/free) in a few minutes.
- **Do I need to submit separate requests for each platform?**   
  No. Once your Google Account is added to the allow list, you receive access to WeatherNext across Google Cloud Storage, BigQuery, and Earth Engine simultaneously.
- **What terms and licensing apply to the data?**   
  Real-time data (any data that relates to a time less than 1 hour ago and the future) is governed by the [GDM Real-Time Weather Forecasting Experimental Data Terms of Use](https://storage.googleapis.com/weathernext-public/terms-of-use.pdf). Historical data (any data that relates to a time 1 hour ago or more) is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). For more details, see [Terms of Service and Disclaimers](https://developers.google.com/weathernext/guides/disclaimers.md.txt).

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## Step 2: Choose your surface

Select the platform that matches your tooling, language preference, and data
resolution needs:

| Surface | Best For | Data Scope | Tooling | Documentation |
| [Google Cloud Storage (Zarr)](https://developers.google.com/weathernext/guides/gcs.md.txt) | Direct programmatic file access, high performance computing, custom ML models, and raw data extraction. | **Full fidelity \& summary statistics:** Raw 64-member ensemble with 3D atmospheric pressure levels in `gs://weathernext3_spatial/`, and precomputed surface summary statistics in `gs://weathernext3_statistics_spatial/`. | Python (`xarray`, `zarr`, `obstore`) | [GCS (Zarr) Guide](https://developers.google.com/weathernext/guides/gcs.md.txt) |
| [Earth Engine](https://developers.google.com/weathernext/guides/earth-engine.md.txt) | Planetary-scale geospatial analysis, raster overlays, satellite data fusion, and interactive web mapping. | **Surface statistics:** Precomputed mean and percentiles across 0.1° gridded (`weathernext_3_0_0_0p1deg`) and 0.05° station (`weathernext_3_0_0_0p05deg`) collections. | Python (`ee`, `geemap`), JavaScript | [Earth Engine Guide](https://developers.google.com/weathernext/guides/earth-engine.md.txt) |
| [BigQuery](https://developers.google.com/weathernext/guides/bigquery.md.txt) | SQL-based analytics, joining weather forecasts with enterprise business datasets (stores, assets, supply chain). | **Surface statistics:** Precomputed mean and percentiles across 0.1° gridded (`weathernext_3_0_0_0p1deg`) and 0.05° station (`weathernext_3_0_0_0p05deg`) tables. | SQL, BigQuery GIS, Looker, DataFrames | [BigQuery Guide](https://developers.google.com/weathernext/guides/bigquery.md.txt) |
|---|---|---|---|---|

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## Step 3: Run your first query

Explore interactive Colab notebooks with end-to-end sample code and
visualization tutorials:

- **Google Cloud Storage:**
  - [WeatherNext 3 Starter Guide - Zarr (Spatial - Full Ensemble) on Google Cloud Storage](https://storage.googleapis.com/weathernext-public/colabs/WeatherNext_3_Starter_Guide_Zarr_Spatial_Full_Ensemble_on_Google_Cloud_Storage.ipynb)
  - [WeatherNext 3 Starter Guide - Zarr (Spatial - Statistics) on Google Cloud Storage](https://storage.googleapis.com/weathernext-public/colabs/WeatherNext_3_Starter_Guide_Zarr_Spatial_Statistics_on_Google_Cloud_Storage.ipynb)
- **Earth Engine:**
  - [WeatherNext 3 Starter Guide - Earth Engine (0.1°)](https://storage.googleapis.com/weathernext-public/colabs/WeatherNext_3_Starter_Guide_Earth_Engine_0p1deg.ipynb)
  - [WeatherNext 3 Starter Guide - Earth Engine (0.05°)](https://storage.googleapis.com/weathernext-public/colabs/WeatherNext_3_Starter_Guide_Earth_Engine_0p05deg.ipynb)
- **BigQuery:**
  - [WeatherNext 3 Starter Guide - BigQuery (0.1°)](https://storage.googleapis.com/weathernext-public/colabs/WeatherNext_3_Starter_Guide_BigQuery_0p1deg.ipynb)
  - [WeatherNext 3 Starter Guide - BigQuery (0.05°)](https://storage.googleapis.com/weathernext-public/colabs/WeatherNext_3_Starter_Guide_BigQuery_0p05deg.ipynb)

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## Additional resources

- [Terms of Service and Disclaimers](https://developers.google.com/weathernext/guides/disclaimers.md.txt): Licensing terms and experimental forecast disclaimers.
- [Dissemination Schedule](https://developers.google.com/weathernext/guides/dissemination.md.txt): Information on forecast generation frequency, update times, and data availability latency.
- [Model Deprecation](https://developers.google.com/weathernext/guides/deprecation.md.txt): Migration details for users transitioning from previous-generation models (WeatherNext 2, Gen, and Graph).