def weather_alerts(owm_api, lat, lng):
owm_obj = OWM(owm_api)
am = owm_obj.alert_manager()
# available types: Point, MultiPoint, Polygon, MultiPolygon
geom_1 = geo.Point(lng, lat)
# TBD: Alert should be cast over a wide area.
# Alerts will have far reaching effects.
#geom_1.geojson()
#'''
#{
# "type": "Point",
# "coordinates":[ lon, lat ]
#}
#'''
# Pune - Mumbai - Satara - Pune
# Indore - Nagpur - Hyderabad - Indore
#geom_2 = geo.MultiPolygon([[73.856743, 18.520430], [72.877655, 19.075983]])
# -- conditions --
condition_1 = Condition(WeatherParametersEnum.TEMPERATURE,
OperatorsEnum.GREATER_THAN,
310.15) # kelvin, 35C
condition_2 = Condition(WeatherParametersEnum.CLOUDS,
OperatorsEnum.GREATER_THAN,
60) # clouds % coverage
# create a trigger
trigger = am.create_trigger(start_after_millis=355000, end_after_millis=487000,\
conditions=[condition_1, condition_2],\
area=[geom_1],\
alert_channel=AlertChannelsEnum.OWM_API_POLLING)
# read all triggers
triggers_list = am.get_triggers()
print("Read all Weather triggers: {}".format(triggers_list))
