Add Documentation for Weatherflow Cloud Integration (#30550)

* Added docs for weatherflow cloud

* Update source/_integrations/weatherflow_cloud.markdown

Co-authored-by: G Johansson <goran.johansson@shiftit.se>

* Update source/_integrations/weatherflow_cloud.markdown

---------

Co-authored-by: G Johansson <goran.johansson@shiftit.se>

source/_integrations/weatherflow_cloud.markdown

@@ -0,0 +1,20 @@
+---
+title: WeatherFlow Cloud
+description: Instructions on the Cloud based WeatherFlow integration
+ha_release: '2024.3'
+ha_category:
+  - Environment
+  - Weather
+ha_platforms:
+  - weather
+ha_iot_class: Cloud Poll
+ha_config_flow: true
+ha_codeowners:
+  - '@jeeftor'
+ha_domain: weatherflow_cloud
+ha_integration_type: hub
+---
+
+The **WeatherFlow Cloud** integration provides access to cloud provided Weather Forecast of a user's Tempest Weather Stations. In order to access the station you will need to configure the integration with an [Api Key](https://weatherflow.github.io/Tempest/api/).
+
+{% include integrations/config_flow.md %}