Team Overbye Weather Data

Weather datasets for power system studies — ERA5 reanalysis, HRRR history and forecasts, and NOAA/GFS forecasts — available through a web portal and a Python package.

The Python package does three things in one call:

Download a dataset for one or more dates
Crop to a region — a state, a group of states, an ISO zone, or a bounding box
Crop in time — keep only the hours you care about

Cropping happens on the server, so you download only what you asked for. A Texas six-hour NOAA slice is 240 KB instead of the 120 MB the full North America file would cost you — about 500× less to move.

from TeamOverbyeWeather import WeatherClient

client = WeatherClient()

client.download(
    "hrrr",
    type="hourly_current",
    dates="2026-07-21",
    region="TX",
    time_start="2026-07-21T06:00",
    time_end="2026-07-21T18:00",
    dest="./data",
)

That one call downloads the HRRR hourly file for July 21, crops it to the Texas bounding box, keeps the 06:00–18:00 UTC window, and writes a .pww you can open directly in PowerWorld.

Note

New here? Read Installation then Quick Example. If you just want files without writing code, the web portal does the same thing with a point-and-click interface.

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