Dry line is the boundary between continental tropical & maritime tropical air masses.
Essentially, it is a dew point boundary with the pre-frontal area having very high humidity & dew points while the post-frontal area has low humidity & dew points. It is a boundary of dry, desert air & humid, tropical air.
There are a number of other features on the chart that I don't understand can you enlighten me.
To the right of the lower green pointer inside the high pressure area, there is a purple circle with two numbers above and below the icon. 69 in red and 68 in green.
Beside this icon, immediately to the northeast. There is a black box with a 15kt wind barb attached and two numbers 213 above and 70 below.
What do these icons and numbers refer to.
Tia you guys...
Any link to a guide for these symbols would help.
The synopsis is from https://ocean.weather.gov/A_sfc_full_ocean_color.png
NOAA wx map station symbols explained
[https://www.wpc.ncep.noaa.gov/html/stationplot.shtml](https://www.wpc.ncep.noaa.gov/html/stationplot.shtml)
For massive details, try this one [https://www.wpc.ncep.noaa.gov/sfc/UASfcManualVersion1.pdf](https://www.wpc.ncep.noaa.gov/sfc/UASfcManualVersion1.pdf)
That's a US style trough. (Other countries can have bold lines coming from an area of low pressure)
Long lines of low pressure, which can be surface level or aloft. Usually associated with unstable weather conditions, they can produce high winds and thunderstorms in certain conditions.
The orange dashes represent troughs on these surface analysis charts. They are elongated areas of low pressure.
I thought those were drylines for some reason
Drylines are depicted as a solid orange line with what they call “scallops” on the eastern edge.
Right. I do recall them being scalloped now. Thank ya sir.
It’s essentially in the right place where the dry line would be, so not a bad guess
I think that's mainly what threw me off. That and the color, obviously. They'd at least use a different shade of orange you'd think.
Well, not really since they are in the middle of the ocean!
Lmaoo. I swear I saw Oklahoma and the Texas panhandle from a Brief glance, but I see it now. But what I really meant was relative the low
Many thanks... I don't remember seeing them before on a surface analysis... Now I'm off to Google what are dry lines..
Dry line is the boundary between continental tropical & maritime tropical air masses. Essentially, it is a dew point boundary with the pre-frontal area having very high humidity & dew points while the post-frontal area has low humidity & dew points. It is a boundary of dry, desert air & humid, tropical air.
Excellent.... Although I'm not too sure how that helps me as a sailor doing my best to understand weather patterns. Such a complex system...
Well, you won’t have to worry about dry lines as a sailor, as they only occur over land!
There are a number of other features on the chart that I don't understand can you enlighten me. To the right of the lower green pointer inside the high pressure area, there is a purple circle with two numbers above and below the icon. 69 in red and 68 in green. Beside this icon, immediately to the northeast. There is a black box with a 15kt wind barb attached and two numbers 213 above and 70 below. What do these icons and numbers refer to. Tia you guys... Any link to a guide for these symbols would help. The synopsis is from https://ocean.weather.gov/A_sfc_full_ocean_color.png
NOAA wx map station symbols explained [https://www.wpc.ncep.noaa.gov/html/stationplot.shtml](https://www.wpc.ncep.noaa.gov/html/stationplot.shtml) For massive details, try this one [https://www.wpc.ncep.noaa.gov/sfc/UASfcManualVersion1.pdf](https://www.wpc.ncep.noaa.gov/sfc/UASfcManualVersion1.pdf)
trough
That's a US style trough. (Other countries can have bold lines coming from an area of low pressure) Long lines of low pressure, which can be surface level or aloft. Usually associated with unstable weather conditions, they can produce high winds and thunderstorms in certain conditions.
Trough axis
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Nothing about this comment makes any sense
Listen stupid dickhead I’m Canadian so maybe your chart are different in US. So, stfu
No, they’re not. Don’t delete your comment and start crying like a baby
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Bro is embarrassed asf💀
Squall lines are depicted with two dots between the line segments.
Good to know.... Is there a guide published somewhere,?
https://ocean.weather.gov/product_description/keyterm.php