MetPy

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NSF Unidata Community Survey 2025

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Release 1.7.0 · Unidata/MetPy Highlights New analytic LCL calculation based on Romps (2017) New saturation vapor pressure calculations, relative to both ice and liquid, using Ambaum (2020) Moisture/temperature dependent gas co...

MetPy 1.7.0 is out! Highlights include saturation vapor pressure (including over ice) and LCL calculations, automated high/low identification, and clients for accessing S3 archives of NEXRAD L2/L3, GOES, and ML weather prediction output (from NOAA/CIRA), and more! github.com/Unidata/MetP...

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🔗 arcg.is/zLOSW

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YouTube video by NSF Unidata MetPy Mondays #327 – Complicated Layouts with GridSpec

Want a clean way to combine a Skew-T and time series in Python?
This week’s #MetPyMonday shows how to wrangle GridSpec for a tight layout with MetPy + Siphon. youtu.be/fzEJvnaXYJw?...

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Create GOES composite imagery products in Python using SatPy and data from public AWS S3 buckets. Create GOES composite imagery products in Python using SatPy and data from public AWS S3 buckets. - GOES Composites with SatPy.ipynb

If you've been looking for a quick way to make some GOES composites (e.g. geocolor, airmass), here's a notebook showing how to do it using SatPy and AWS S3 data (optionally a little bit of the next @metpy.bsky.social release). gist.github.com/dopplershift...

YouTube video by NSF Unidata MetPy Mondays #326 - Use KDTree and MetPy to Find the Nearest METAR

Need to know which METAR station is closest to your point of interest? Checkout this week's #metpymonday

We show you how to:
✅ Build a clean station list from MetPy
✅ Find the nearest station using KDTree
✅ Find distance with GeoPandas
#Python

youtu.be/nMTFb-8e1Nk?...

Have you tried looking at satpy? They should have some functionality for those types of images.

Made a new Gridded RH Observations graphics function for the next update in FireWxPy. We use the different interpolation methods found in @metpy.bsky.social's interpolate_to_grid() function. I set the default interpolation_method='cressman'. #python #dataviz #weather

NSF Unidata is looking for creative people to help set the priorities and direction for our program. We need insights, ideas, and a better understanding of the science data challenges you're facing. Nominate someone (yourself?) to help us serve our community! www.unidata.ucar.edu/blogs/news/e...

YouTube video by NSF Unidata MetPy Mondays #324 - Build a Custom Local Data Cache with Python

Tired of downloading the same data over and over? In our latest #MetPyMonday, we show you how to build a local cache for NWS soundings! Learn how to automate your data retrieval and streamline your workflow in just a few minutes. youtu.be/Pl47QBjPlu4?...

YouTube video by NSF Unidata MetPy Mondays #323 - Mapping Wind Roses on OpenStreetMap with CartoPy

🌍 New #MetPyMonday! 🚀

This week, we’re mapping wind roses on OpenStreetMap using CartoPy! 📊🌬️

✅ Extract & plot wind data
✅ Overlay wind roses on real-world maps
✅ Customize map layers for meteorology & GIS

Watch now! 🎥 www.youtube.com/watch?v=neZt...

Deadline is in 2 days!

YouTube video by NSF Unidata MetPy Mondays #321 - Visualizing Hurricane Helene with Python’s GOES2GO

Discover how to animate GOES satellite imagery of Hurricane Helene using Python's powerful libraries! In this MetPy Monday episode, we dive into the goes2go library to fetch GOES-16 ABI data and create stunning animations with Matplotlib’s FuncAnimation! www.youtube.com/watch?v=lxl1...

Now we are bringing in the ensembles & as a reminder to folks why @metpy.bsky.social is a powerful tool since vorticity isn't a field in the ensembles like it is in the deterministic models. However, we can use metpy.calc to calculate vorticity from the u & v wind components in the ensemble field.

Jupyter notebook demonstrating how to create custom GRIB definitions to use with eccodes Jupyter notebook demonstrating how to create custom GRIB definitions to use with eccodes - Custom ECCODES GRIB definitions.ipynb

Ever struggled to decode GRIB files with xarray+cfgrib/eccodes that have parameters it doesn't understand? This notebook should help you make the process a bit easier: gist.github.com/dopplershift...

YouTube video by NSF Unidata MetPy Mondays #319 - Streamline Your Matplotlib Plots with Units!

In this MetPy Mondays episode, learn how to make your plots smarter by setting units as Matplotlib axis properties! Stop manually converting your data and let Python handle it for you. #metpymonday www.youtube.com/watch?v=TT1p...

Come spend a summer working on MetPy!

Release 0.10.0 · Unidata/siphon Highlights Updates to for compatibility with xarray, numpy, and protobuf Updated to support Python versions 3.10-3.13 Improvements to parsing data from Wyoming upper air as well as support for req...

Siphon v0.10.0 has been released, with a lot of fixes to work with current versions of things like xarray, numpy, and protobuf, and support for Python 3.10-3.13. It also has bug fixes for things like Hyrax catalogs and Wyoming upper air archive access. Full release notes: github.com/Unidata/siph...

YouTube video by NSF Unidata MetPy Mondays #318 - Customizing Skew-T Diagrams: NCL-Inspired Python Plots

Learn how to customize SkewT diagrams based on a recent question on GitHub! #Metpymonday #Meteorology #PythonForWeather #AtmosphericScience #DataVisualization youtu.be/3iPujH33WsI

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Do you use scientific python in the atmospheric sciences? Interested in adding machine learning workflows to the mix, or improving what you're doing? Check out the "MetPy and Machine Learning" short course at AMS in New Orleans: www.ametsoc.org/index.cfm/am...

I was procrastinating working on paper revisions last night, and I binged like 20 @metpy.bsky.social Monday. There are >200 episodes going back >5 years. Lots of meteorology like drawing fronts & Q-vectors, but also general explainers. I finally learned the difference between imshow and pcolormesh.

I strongly recommend to any professors who teach Computer Applications in Meteorology to show MetPy to the students. The way to get more meteorology students interested in Python is to show them how to make cool weather maps via data analysis so students can see how Python relates to meteorology.

MetPy - YouTube A weekly video series showing how to use MetPy or other Python libraries to solve problems relevant to geoscience applications.

I started casually teaching myself Python Programming in March 2022, then began seriously/religiously teaching myself Python Programming in June 2023. I recommend starting with the Metpy Mondays series on YouTube. That's where I started to learn! @metpy.bsky.social

youtube.com/playlist?lis...

YouTube video by NSF Unidata MetPy Mondays #317 - Corfidi Storm Motion Calculations in Python

In this episode of MetPy Mondays, we dive into Mesoscale Convective Systems (MCS) and demonstrate how to calculate storm motion using the Corfidi vector method. We'll walk you through a real-world case study! youtu.be/J-YHCcbCBD0?...

The foundations material and cookbooks from @projectpythia.bsky.social are another excellent resource: projectpythia.org