Timeline for How far can inland sea with area 350000 sqkm influence precipitation?
Current License: CC BY-SA 4.0
11 events
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| Apr 16 at 17:50 | comment | added | rtaft | @AlexP of course, the blue in Michigan is downwind of Lake Michigan indicating more precipitation, and as you go further inland it becomes green. Most of the green areas are upwind of a lake with blue on the other side. The dark blue south of Watertown NY is a combination of the lake effect and the elevation increase. The only surprise on this map is the green near Rochester in the Genesee River Valley. | |
| Apr 16 at 15:08 | comment | added | AlexP | @rtaft: Please note that on the map I posted shows green is less precipitation than pale blue. The lakes are in the middle of a large pale blue area, but some areas adjacent to the lakes receive less precipitation. | |
| Apr 15 at 21:21 | comment | added | rtaft | As far as its localized direction, in this area the cold front is typically followed by a high pressure that moves down below the lakes, pulling the cold air in a NE, E, SE, or sometimes South direction, so you get sort of an easterly wedge of precipitation as the high pressure moves through changing the wind direction. Since you are in the southern hemisphere, the high pressure spins the opposite, but the jet stream still goes W->E, so idk how much that would affect it. | |
| Apr 15 at 21:02 | comment | added | rtaft | Ironically, the map AlexP posted seems to indicate a clear difference in precipitation in Michigan on the half downwind from the lake, but the usclimatedata website doesn't show any sort of seasonal changes like it does in New York. | |
| Apr 15 at 20:53 | comment | added | rtaft | if you look at a city at the tail end of the lakes, down wind, there is Oswego NY by the lake and you can see the different between precipitation in lake effect season and other months. Rome NY is further inland and there is even more precipitation. Though, as you get closer to the ocean, the data is affected by that with more summer rains. | |
| Apr 15 at 16:17 | comment | added | GiuseppeZee | Answer and also comment are very interesting. After answer I thought that exactly lake efect will take place in my Mare Nereidum. It is fed by huge river, so part of lake (western) has freshwater, eastern has higher salinity (like Balkhash in Kakazkhstan). But after seeing US precipitation map I am not sure, what could be real impact of this sea. Especially in arid surroundings (difference with US, with precipitation over 800 mm/yearly). I assume that impact of higher rainfall will be very localized in direction of winds and will be stronger in autumn due to lake effect. Correct? | |
| Apr 15 at 15:15 | comment | added | AlexP | Here is a very nice map from the American Commission for Environmental Cooperation showing the actual extent of the influence of the North American Great Lakes on precipitation levels. Basically, nothing much, with some parts of the coasts being even drier than the surrounding areas. | |
| Apr 15 at 15:05 | history | edited | rtaft | CC BY-SA 4.0 |
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| Apr 15 at 14:58 | history | edited | rtaft | CC BY-SA 4.0 |
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| Apr 15 at 14:48 | history | edited | rtaft | CC BY-SA 4.0 |
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| Apr 15 at 14:40 | history | answered | rtaft | CC BY-SA 4.0 |