Oh, it's fine. Good

Weatherman: I do blame you. Why did you throw water on my weather map?
Man: Well, you said they needed water on the prairies; so, I threw water on the prairies.
Weatherman: Ah. I meant rain, not this water. Oh, what am I going to do?
Oh, look at the time. This is terrible. This is a terrible day.
I have to do my weather forecast in a minute.
Man: Oh, well, maybe we could dry them up.
Weatherman: Dry it with what?
Man: With this heater fan.
Weatherman: Oh, that might work. We could blow some warm air on the map with the fan.
Man: Yes. Oh, look the warm air is drying the map.
Weatherman: Oh, it's fine. Good. Well, it's my time to do my weather forecast.

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The weatherman is happy because his map is drying quickly.

What does "Good" mean in this dialogue?

Does it mean "all right" or something else? Please explain.

Thank you