You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What is the name of a commercial weather service that provides real-time weather information reported by personal weather stations that have access to this international website?" whose answer is Weather Underground.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Weather Underground personal weather stations
Useful Output:

Doc 1: Step 1: Create a WU Account · Step 2: Set Up a Personal Weather Station (PWS) · Step 3: Create an API Key · Step 4: Find Nearby PWS Stations and
Doc 2: This Home Weather Station has everything necessary to view and monitor the weather conditions near you and send the data directly to Weather Underground.
Doc 3: r/myweatherstation: Discover essential resources for setting up your personal weather station, from siting and software to data sharing
Doc 4: How To Set up Weather Underground Personal Weather Stations in taskTracker.
Doc 5: Once you have created an account, select My Profile | My Weather Stations, or link below:https://www.wunderground.com/personal-weather-station/mypws; Tap the