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A Python 3 module for retrieving data from the NWS Weather Forecast API

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nwswx

A Python 3 client for retrieving data from the NWS Weather Forecast API.

Installation

pip install nwswx

Requirements

Package Build Requirements

The full list of packages required to build this module can be found in requirements.txt

Documentation

Full documentation, including examples and an API reference: http://nwswx.readthedocs.io

Examples

Get forecast for a point in GeoJSON format:

>>> import nwswx
>>> nws = nwswx.WxAPI('[email protected]')
>>> forecast = nws.point_forecast(39.0693, -94.6716)
>>> print(forecast)
{
    "@context": [
        "https://raw.githubusercontent.com/geojson/geojson-ld/master/contexts/geojson-base.jsonld",
        {
            "wx": "https://api.weather.gov/ontology#",
            "geo": "http://www.opengis.net/ont/geosparql#",
            "unit": "http://codes.wmo.int/common/unit/",
            "@vocab": "https://api.weather.gov/ontology#"
        }
    ], ...

Get forecast for a point in JSON-LD format:

>>> import nwswx
>>> nws = nwswx.WxAPI('[email protected]')
>>> forecast = nws.point_forecast(39.0693, -94.6716, return_format=nwswx.formats.JSONLD)
>>> print(forecast['periods'])
[{'number': 1, 'name': 'Tonight', 'startTime': '2019-01-13T22:00:00-08:00', 'endTime':
'2019-01-14T06:00:00-08:00', 'isDaytime': False, 'temperature': 28, 'temperatureUnit':
'F', 'temperatureTrend': None, 'windSpeed': '2 to 6 mph', 'windDirection': 'N',
'icon': 'https://api.weather.gov/icons/land/night/few?size=medium', 'shortForecast':
'Mostly Clear', 'detailedForecast': 'Mostly clear, with a low around 28. North wind 2
to 6 mph.'}, ...

Get an hourly forecast for a point in JSON-LD format:

>>> import nwswx
>>> nws = nwswx.WxAPI('[email protected]')
>>> forecast = nws.point_hourly_forecast(39.0693, -94.6716, return_format=nwswx.formats.JSONLD)
>>> print(forecast['periods'])
[{'number': 1, 'name': '', 'startTime': '2019-01-16T19:00:00-08:00', 'endTime':
'2019-01-16T20:00:00-08:00', 'isDaytime': False, 'temperature': 42,
'temperatureUnit': 'F', 'temperatureTrend': None, 'windSpeed': '10 mph', 'windDirection':
'NE', 'icon': 'https://api.weather.gov/icons/land/night/rain,90?size=small',
'shortForecast': 'Light Rain', 'detailedForecast': ''}, ...

Get active weather alerts for a point in ATOM format:

>>> import nwswx
>>> nws = nwswx.WxAPI('[email protected]')
>>> alerts = nws.active_alerts({'point': '39.0693,-94.6716'}, return_format=nwswx.formats.ATOM)
>>> print(alerts)
<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:cap="urn:oasis:names:tc:emergency:cap:1.2">
 <id>https://api.weather.gov/alerts?point=39.0693%2C-94.6716&amp;active=1&amp;zone=KSZ104%2CKSC209</id>
 <generator>NWS CAP Server</generator>
 <updated>2019-01-17T06:04:28+00:00</updated>
 <author>
  <name>[email protected]</name>
 </author>
 <title>current watches, warnings, and advisories for 39.0693 N, 94.6716 W</title>
 <link rel="self" href="https://api.weather.gov/alerts?point=39.0693%2C-94.6716&amp;active=1&amp;zone=KSZ104%2CKSC209"/>
 <entry>
  <id>https://api.weather.gov/alerts/NWS-IDP-PROD-3320294-2901037</id>
  <link rel="alternate" href="https://api.weather.gov/alerts/NWS-IDP-PROD-3320294-2901037"/>
  <updated>2019-01-16T14:52:00-06:00</updated>
  <published>2019-01-16T14:52:00-06:00</published>
  <author>
   <name>NWS</name>
  </author>
  <title>Winter Weather Advisory issued January 16 at 2:52PM CST expiring January 17 at 9:00AM CST by NWS Kansas City/Pleasant HIll MO</title>
...

Limitations, of Which There Are Many

The following list of endpoints have not been implemented:

  • /stations
  • /stations/{stationId}
  • /stations/{stationId}/observations
  • /stations/{stationId}/observations/current
  • /stations/{stationId}/observations/{recordId}
  • /products/{productId}
  • /products/types
  • /products/types/{typeId}
  • /products/types/{typeId}/locations
  • /products/types/{typeId}/locations/{locationId}
  • /products/locations
  • /products/locations/{locationId}/types
  • /offices/{officeId}
  • /zones/{type}/{zoneId}
  • /zones/{type}/{zoneId}/forecast
  • /alerts/active/count
  • /alerts/active/zone/{zoneId}
  • /alerts/active/area/{area}
  • /alerts/active/region/{region}

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A Python 3 module for retrieving data from the NWS Weather Forecast API

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