Help The Tropical Cyclone Pam Disaster Relief Effort
Note: Select a region before finding a country.
Rain, a thunderstorm
Rain and a thunderstorm
Periods of rain
of sunlight, then sets at
of moolight, then sets at
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.