• Why is the west coast of the United States always so dry?

    Best answer: The dry latitudes on the west coast, the latitudes south of San Francisco, are dry all the way around the world. Because of Earth's curvature, Earth's tilt, different amounts of sunlight hitting Earth at different angles because of those two factors, and resulting prevailing wind systems, dryness is the... show more
    Best answer: The dry latitudes on the west coast, the latitudes south of San Francisco, are dry all the way around the world. Because of Earth's curvature, Earth's tilt, different amounts of sunlight hitting Earth at different angles because of those two factors, and resulting prevailing wind systems, dryness is the rule for those latitudes. The eastern half of the US is the exception to that rule.

    What makes the eastern half of the US different is the Gulf of Mexico to its immediate south. The Gulf of Mexico is an extremely large, extremely shallow body of water. Because of its shallowness, it gets very, very warm from the sun. If you go swimming in the Gulf of Mexico, like in South Padre, TX, it's barely cool at all, often even being warmer than bathwater you leave behind when you get out of the tub. That's how warm it is. Compare that to the waters off the coast of Southern California, which are so cold that surfers hardly ever wear shorts and almost always wear wetsuits. So, like very warm water does, like when you take a shower, it puts off a lot of steam. That steam enters the atmosphere. Because the air above the eastern half of the US to the Gulf's direct north is even warmer than the air over the Gulf during the summer from having land instead of a body of water beneath it making it more temperate, that warmer air over the eastern half of the US rises faster than the Gulf Air and so sucks that warm, moist Gulf air northward and then the prevailing westerlies move it eastward. Then, as that warm, moist air eventually cools, you get condensation and rainfall.

    In fact, the moisture and the heat energy that the Gulf of Mexico pumps into the atmosphere is so immense and intense, it spawns the strongest storms in the world: hurricanes. You don't get hurricanes in California because the Pacific, which is the biggest, deepest ocean and so is by far the coldest ocean besides the Arctic Ocean, the very deepest, coldest parts of the Pacific being immediately off the west coast of the Americas, is too cold and simply doesn't pump anywhere near the amount of moisture and heat into the atmosphere to spawn the storms and climate you get in the eastern US because of the Gulf of Mexico.

    Now, the inland areas of the western US are even dryer than the Pacific Coast for a variety of other reasons, the biggest of those being the Rockies forcing the moisture out of the air as it forces the prevailing westerly air upward before allowing it to move east, but the the Pacific Coast, which is at barely above sea-level, is dry because of the extreme coolness of the Pacific, while the eastern half of the US, despite being east of the Rockies, is nonetheless very green because of the extreme warmness of the Gulf of Mexico.
    6 answers · 5 days ago
  • Why are tornados so rare in canada?

    Best answer: Tornadoes are a result of the collision of hot humid air with dry cool air. Just not enough tropical hot humid air up there. Tornadoes and hurricanes usually get there starts along the Equator ....................
    Best answer: Tornadoes are a result of the collision of hot humid air with dry cool air. Just not enough tropical hot humid air up there. Tornadoes and hurricanes usually get there starts along the Equator ....................
    9 answers · 1 week ago
  • I wonder if everywhere in the northern hemisphere is such heat, or only in Europe, and more specifically in Poland where I live?Here is 36 C?

    Best answer: Yes a very HOT summer, it is 94F today and I do not like it hot. ( western Washington state U.S.A.) I do not like HOT !!!!!!!
    Best answer: Yes a very HOT summer, it is 94F today and I do not like it hot. ( western Washington state U.S.A.) I do not like HOT !!!!!!!
    12 answers · 1 week ago
  • Will Britain have more cold winters with this so called Maunder Minimum coming up?!?

    Best answer: Possible.
    But we dont know if a maunder type minimum will occur, trying to predict the future is notoriously tricky.
    Best answer: Possible.
    But we dont know if a maunder type minimum will occur, trying to predict the future is notoriously tricky.
    7 answers · 2 weeks ago
  • Which city has much colder winters: Philadelphia or Detroit?

    Best answer: Detroit is a little colder on average. Detroit is a little closer to the north pole
    Best answer: Detroit is a little colder on average. Detroit is a little closer to the north pole
    5 answers · 2 weeks ago
  • Why is Southern California so humid right now?

    Compared to its normal moderate humidity
    Compared to its normal moderate humidity
    6 answers · 3 weeks ago
  • Are flash flood warnings rare?

    I have a flash flood warning, and from what I heard, they're exceptionally rare and supposedly dangerous.
    I have a flash flood warning, and from what I heard, they're exceptionally rare and supposedly dangerous.
    10 answers · 3 weeks ago
  • How often clouds are formed??

    Is it true that if there's more heat (bright sun shine) on the surface then more clouds are formed every now and then???
    Is it true that if there's more heat (bright sun shine) on the surface then more clouds are formed every now and then???
    5 answers · 3 weeks ago
  • What state has the highest humidity in the United States?

    Best answer: Southern states., Louisiana, Florida. Louisiana out of the two.
    Best answer: Southern states., Louisiana, Florida. Louisiana out of the two.
    8 answers · 3 weeks ago
  • Is there a way to see a live weather radar map of Central America?

    Especially looking for El Salvador and Guatemala.
    Especially looking for El Salvador and Guatemala.
    4 answers · 3 weeks ago
  • To Weather Experts, at least in my area in the US (Georgia), it seems once the summer heat cools off for the day, that is when the Humidity?

    Increases. Is that just a coincidence, or is there any correlation between heat and humidity? Please explain details. thanks.
    Increases. Is that just a coincidence, or is there any correlation between heat and humidity? Please explain details. thanks.
    6 answers · 3 weeks ago
  • Los Angeles summer weather?

    Random but how often does Los Angeles get thunderstorms during the summer?
    Random but how often does Los Angeles get thunderstorms during the summer?
    7 answers · 4 weeks ago
  • When will new york nor'easter pass?

    When will this goddamn storm pass? all I can see on the 10-day weather forecast is just rain, thunder and lightning. wtf is going on.
    When will this goddamn storm pass? all I can see on the 10-day weather forecast is just rain, thunder and lightning. wtf is going on.
    5 answers · 3 weeks ago
  • Is there such thing as a f6 tornado?

    Best answer: probably
    Best answer: probably
    8 answers · 4 weeks ago
  • Can you go to the beach after it rains?

    Best answer: Yes you can go to the beach but if you get in the water and it smells/tastes strange then get out of the water because that means all the storm drains have been emptying out all their old crud & bacteria.
    Best answer: Yes you can go to the beach but if you get in the water and it smells/tastes strange then get out of the water because that means all the storm drains have been emptying out all their old crud & bacteria.
    7 answers · 4 weeks ago
  • What is snow made of?

    10 answers · 1 month ago