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Post by omegaraptor on Sept 22, 2020 14:01:46 GMT -5
Simple question. Can a storm be caused directly by high pressure? This has been a somewhat debated topic as of late in the shoutbox.
Please explain your answer in a post
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Post by AJ1013 on Sept 22, 2020 14:02:29 GMT -5
Yes. I see it happen multiple times every year
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Post by antares on Sept 22, 2020 14:04:32 GMT -5
Why yes, yes they do.
I don't have any proof though, so it's just a conspiracy at this point.
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Post by nei on Sept 22, 2020 14:11:34 GMT -5
no, sinking air cannot cause precipitation. A tight pressure gradient between high and low can cause high winds; not a storm. There is a low pressure storm in the Atlantic right now  see the tight contours? A high pressure system doesn't have that; not a real storm |
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Post by firebird1988 on Sept 22, 2020 17:29:10 GMT -5
neiThe Southwest Monsoon is based around a high pressure center that sets up usually in the Kayenta, AZ/Farmington, NM vicinity, and it then draws up moisture from the west coast of Central Mexico
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Post by Yahya Sinwar on Sept 22, 2020 17:47:08 GMT -5
nei The Southwest Monsoon is based around a high pressure center that sets up usually in the Kayenta, AZ/Farmington, NM vicinity, and it then draws up moisture from the west coast of Central Mexico Winds flow from high to low pressure . The monsoon is low pressure ! |
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Post by firebird1988 on Sept 22, 2020 18:00:07 GMT -5
nei The Southwest Monsoon is based around a high pressure center that sets up usually in the Kayenta, AZ/Farmington, NM vicinity, and it then draws up moisture from the west coast of Central Mexico Winds flow from high to low pressure . The monsoon is low pressure ! The low pressure (a heat low) usually sets up near Needles, California, with the High pressure near Kayenta and Farmington, so the flow between them becomes S-SW straight out of the GOC |
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Post by nei on Sept 22, 2020 20:49:01 GMT -5
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Post by AJ1013 on Sept 22, 2020 20:50:46 GMT -5
Thanks That day here had heavy overcast and on and off light rain with winds screaming off the ocean, all thanks to the high pressure sitting on the carolina coast. Photo from 3-8-2020  |
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Post by antares on Sept 22, 2020 21:58:00 GMT -5
AJ you seem to be confusing convective precipitation for actual low pressure cyclones. I've seen it rain pretty good in Oregon with relatively high pressure, fwiw.
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Post by Benfxmth on Feb 19, 2023 7:46:07 GMT -5
Lol classic AJ posts right here
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Post by St. Middleway on Feb 28, 2023 12:28:02 GMT -5
Dunno about storms, but as with right now, we seem to be capable of getting silly annoying drizzly showers under high pressure setups. At least it's not windy when this happens though.
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Post by AJ1013 on Jan 18, 2024 8:39:30 GMT -5
Obviously yes
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Post by Metsfan257 on Jan 19, 2024 9:45:37 GMT -5
No, storms are caused either by low pressure, fronts, or by convection. What AJ is describing is marine convective cloud.
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Post by Milwaukee Mass Murderer on Jan 24, 2024 15:31:30 GMT -5
Please explain your answer in a post No. There is ALWAYS low pressure somewhere. Can't have "high" without "low". And air will flow from high to low. |
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Post by segfault1361 on Jan 27, 2024 10:06:55 GMT -5
Heat domes often have storms spawning on its periphery "Ring of Fire", so you can consider them technically "caused" by the high pressure, so... yes?
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Post by Ethereal on Jan 27, 2024 19:38:24 GMT -5
Not sure about "high pressure storms" per se, but a high pressure system (particularly blocking highs) in the Tasman Sea can direct storms and high amount of rainfall to the east coast here for days here. A blocking high in the Tasman was the reason why the 2021-22 floods happened.
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