Aweather map is shown below:

a map of usa is shown with cities san francisco, los angeles, chicago, dallas, miami, and new york marked. a curved line with triangles pointing down is shown between san francisco and los angeles. a curved line with semicircles pointing up is shown on the right between chicago and dallas. slanting z shaped lines are made near los angeles. a key is shown.

based on the weather map, predict the weather in los angeles. explain your answer using complete sentences. will this prediction always come true? why or why not?