From 7807b409258864a2aa35e25f2f6aacc416429319 Mon Sep 17 00:00:00 2001
From: Aaron Bach <bachya1208@gmail.com>
Date: Sat, 16 Mar 2019 04:33:22 -0600
Subject: [PATCH] Add available property to Ambient PWS (#22092)

* Add available property to Ambient PWS

* Linting

* remove blank line
---
 homeassistant/components/ambient_station/__init__.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/homeassistant/components/ambient_station/__init__.py b/homeassistant/components/ambient_station/__init__.py
index 545415f9d5d..9ef2b3a5263 100644
--- a/homeassistant/components/ambient_station/__init__.py
+++ b/homeassistant/components/ambient_station/__init__.py
@@ -411,6 +411,13 @@ class AmbientWeatherEntity(Entity):
         self._state = None
         self._station_name = station_name
 
+    @property
+    def available(self):
+        """Return True if entity is available."""
+        return bool(
+            self._ambient.stations[self._mac_address][ATTR_LAST_DATA].get(
+                self._sensor_type))
+
     @property
     def device_info(self):
         """Return device registry information for this entity."""