What is meant by the expression "having a black cloud hanging over my head"?
It’s an idiom or commonly used expression to emote irritation, disturbance or feelings of misfortune: straight out or literally, it’s a question formed as an incomplete sentence.To complete the sentence:"I dislike having a black cloud hanging over my head.”“I feel like having a black cloud hanging over my head.”“Do I look like I have a black cloud hanging over my head?”“I object to having a black cloud hang over my head.”It’s typically understood as a way of explaining a bad omen: as if trouble can follow an individual around like “having a black cloud hanging over my head.”If it’s a question: an alternative way of inquiry, “Do I have a “kick me” sign pasted onto my butt or what?”
How can it rain when the sky is blue, no clouds, and the sun is out?
Yes, it is possible to have liquid water droplets falling from a clear blue sky, but by definition, these liquid droplets will likely not be "rain". Rain is defined as liquid precipitation. In order for the droplet to fit the definition of "precipitation", it must originate from a cloud and must fall until it reaches the ground surface. Here is another example of how you can have water droplets falling from a clear blue sky. If you live the near base of a tall moutaim and a storm had recently dumped a large amount of snow near the top of the mountain. A few days later, under a clear blue sky, the wind becomes strong near the mountain top. The fallen snow is then blown off the mountain top. This snow then falls and melts. By the time it reaches the valley floor, it has completely melted into liquid droplets. This can and has happen before. It may look like rain and act just like any other rain event. However, by the official definition of the word "rain", these water droplets are not "rain". If you follow the strict definition of "rain" and "precipitation", the other example of the strong updraft lifting the rain water back up through the anvil and then depositing it up to 20 miles away can not be officially be recorded as "rain". "Rain", by definition of "precipitation", must fall all the way from the cloud to the ground surface. So the answer to your question is...yes it is possible, but most likely the event or the falling liquid droplets can not be called "rain".
What would happen to the height of the cloud base if the dew point temperature were to lower?
Given that the air temperature stays the same, then when the dew point temperature lowers the cloud base level rises. This is because the low level moisture decreases in these conditions. It can be explained really well using aerological diagrams, but I doubt that I will be able to find any information about them. Actually, I just found a site that shows what happens. With the site in the source list, just slide the dew point temp to a lower amount and then you can see the cloud base rise. This shows the answer that you want in a pretty cool way. :)
What would happen to the height of the cloud base if the dewpoint temperature would were lower?
This is one of those simple questions where there is no real simple answer that is always correct. By dew point, I will assume you mean surface dew point. The atmosphere does not have a uniform dew point temperature and constantly changes with height. The cloud base may or may not be related to surface dew point. Many clouds are not formed based on surface moisture. They can form at many levels depending on the type of lift and at what level a moist layer is located. If you are referring to a thermally induced cloud layer that is surface based (let's say fair weather cumulus since they most often are due to surface based heating), then what arasan states is correct. But, there if the dew point is lowered there becomes a critical point, depending on the exact lapse rate, where no clouds will form no matter how much lift you may have. There are many variables that can affect the cloud base and altering just one can actually have a result that you may not expect.
Suicide doesn't sound bad right now?
You are not a screw-up; you've just made mistakes, as everyone has. And you are not a burden, if anything, you are a help!! You've helped your girlfriend with bills, and now you want to help your mom. You did have a job, and you will find another. It may not be right away, as right now there are tons of people out of work, but you will find one. First, if your girlfriend has her own place, then she is the one who needs to be paying the rent. Even if you say she can't pay because of you. Don't let her fool you into thinking that she can't pay rent because of you. She's gotta help herself, and now you have to get back on your feet. Everyone makes mistakes especially when it comes to money, work, girlfriends/boyfriends. It is never easy and life isn't supposed to be one way or the other. You will learn from your mistakes; that's why they happen. So there was a theft; now you realize that it was something that shouldn't have happened and you wouldn't let it happen again. Your girlfriend broke up with you but if you guys were meant to be together then things would have worked out there. Remember, NO, you were not here to be a screw up, but screwing up is just what happens to people...and that includes everyone!!! Ask anyone much older than you....life is all about learning lessons. You are here for a purpose and you are very young. You will soon find out what you enjoy doing, how to get there, and all the other things that come with growing up. Be patient and hang in there.....if you've been selling stuff on ebay, then maybe you could stick with it and sell for other people!! Some people don't know the internet or just don't have time to sell things themselves. You could do it for them, for a fee. That might hold you over until you find more work, and you might also really enjoy doing it!! There's a lot for you out there....please stay and find out what it is!!!
What are the atmospheric conditions that cause "mare's tails" cloud formations? And are they actually a thin line that drops several thousand feet then level off for some miles?
Mares tails are high altitude cirrus clouds, usually between 16,500 and 45,000 feet that are made up of ice particles, usually at temperatures between -40 and -50 degrees Celsius. They are also known as cirrus uncinus clouds. The BBC have some great photos of these clouds.Cloud-busting: Mares' Tails - BBC WeatherCirrus clouds give a warning of a warm weather front coming with low stratus cloud and drizzly rain. Depending on how quickly a weather system is moving the warning can be anything up to a couple of days ahead.