core: IPMA weather component crashes randomly

Home Assistant release with the issue: 0.100.2 and previous

Last working Home Assistant release (if known): N/A

Operating environment (Hass.io/Docker/Windows/etc.): Hassio.

Integration: IPMA

Description of problem: Random crashes.

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant): N/A

Traceback (if applicable):

2019-10-14 12:34:53 ERROR (MainThread) [homeassistant.components.weather] ipma: Error on device update!
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/ipma/weather.py", line 129, in async_update
    self._forecast = await self._station.forecast()
  File "/usr/local/lib/python3.7/site-packages/pyipma/station.py", line 73, in forecast
    _forecasts = await self.api.forecast(self.station.globalIdLocal)
  File "/usr/local/lib/python3.7/site-packages/pyipma/api.py", line 86, in forecast
    await self.wind_type_classe()
  File "/usr/local/lib/python3.7/site-packages/pyipma/api.py", line 114, in wind_type_classe
    data = await self.retrieve(url=API_WIND_TYPE)
  File "/usr/local/lib/python3.7/site-packages/pyipma/api.py", line 25, in retrieve
    async with self.websession.request('GET', url, **kwargs) as res:
  File "/usr/local/lib/python3.7/site-packages/aiohttp/client.py", line 1012, in __aenter__
    self._resp = await self._coro
  File "/usr/local/lib/python3.7/site-packages/aiohttp/client.py", line 504, in _request
    await resp.start(conn)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/client_reqrep.py", line 847, in start
    message, payload = await self._protocol.read()  # type: ignore  # noqa
  File "/usr/local/lib/python3.7/site-packages/aiohttp/streams.py", line 591, in read
    await self._waiter
concurrent.futures._base.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 292, in _async_add_entity
    await entity.async_device_update(warning=False)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 446, in async_device_update
    await self.async_update()
  File "/usr/src/homeassistant/homeassistant/components/ipma/weather.py", line 130, in async_update
    self._description = self._forecast[0].description
  File "/usr/local/lib/python3.7/site-packages/async_timeout/__init__.py", line 45, in __exit__
    self._do_exit(exc_type)
  File "/usr/local/lib/python3.7/site-packages/async_timeout/__init__.py", line 92, in _do_exit
    raise asyncio.TimeoutError
concurrent.futures._base.TimeoutError

Additional information: N/A