Brokeback Mountain: Our Community's Common Bond > Brokeback Mountain Open Forum
The Full Moon
brianr:
Sorry to bring out my retired Geography teacher hat.
When air masses with different properties meet they do not mix but form a front (not sure why although they do eventually mix and the front weakens).
Of course warm air rises and cools. If a cold front moves over you, the warm air rises up and cools and therefore any moisture begins to condense and, when heavy enough, fall. Cold fronts are usually fairly steep so the rise is often rapid and can cause thunderstorms (and tornados).
When a warm front approaches, the warm air is rising up over the cooler air in front and is usually fairly gradual so you get more gentle rain over a longer period.
Where I lived in Sydney, warm fronts are rare but cold fronts common. Summer afternoons often had regular thunderstorms (often just as school finished). I never left the house without turning off and unplugging my computer and modem. The telephone company put some device on my line but I would still not answer the phone when storms were around (before hands free phones),
Here in Dunedin thunderstorms are rare. I probably have not experienced 10 in the 8 years I have been here. We have warm fronts so can have a long period of gentle rain then the temperatures climb for a brief time and then a cold front arrives, there is some brief heavy rain and then fine but cold. However weather forecasting is more complicated because of the alps to the west on a fairly narrow island, about 250km wide.
Front-Ranger:
--- Quote from: Front-Ranger on July 27, 2018, 06:44:23 pm ---
Full moon came and went, and my new granddaughter still isn't here. She's worth waiting for.
--- End quote ---
Another day, while she keeps us waiting. I'm trying to keep myself calm and get as much sleep as possible, without the benefit of my favorite sleep aid, wine. I'm certainly catching up on New Yorker reading!
serious crayons:
--- Quote from: brian on July 28, 2018, 03:11:57 pm ---Sorry to bring out my retired Geography teacher hat.
When air masses with different properties meet they do not mix but form a front (not sure why although they do eventually mix and the front weakens).
Of course warm air rises and cools. If a cold front moves over you, the warm air rises up and cools and therefore any moisture begins to condense and, when heavy enough, fall. Cold fronts are usually fairly steep so the rise is often rapid and can cause thunderstorms (and tornados).
When a warm front approaches, the warm air is rising up over the cooler air in front and is usually fairly gradual so you get more gentle rain over a longer period.
--- End quote ---
Thank you, Brian! Very educational. Never apologize for bringing out your teacher hat -- I'm always happy to learn how things like that work. It makes perfect sense when you explain it that way.
serious crayons:
--- Quote from: Front-Ranger on July 28, 2018, 10:46:06 pm ---Another day, while she keeps us waiting. I'm trying to keep myself calm and get as much sleep as possible, without the benefit of my favorite sleep aid, wine. I'm certainly catching up on New Yorker reading!
--- End quote ---
Did you give up wine? If you mentioned that before, I must have missed it.
serious crayons:
--- Quote from: CellarDweller on July 28, 2018, 02:32:36 pm ---I would've tried to take a pic, but knowing me, it wouldn't have turned out. LOL
--- End quote ---
I did take a pic, with my iPhone, and like every time I take a full moon picture with my phone, it just looks like a big white blob between the bushes and the telephone lines.
Luckily, I have a FB friend who's a professional photographer and amateur astronomer, so he usually posts cool pix of celestial events.
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