Record High/Low on the Same Day With the Same Airmass

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emeraldpeace
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Posts: 112

Location: New York City, NY

Record High/Low on the Same Day With the Same Airmass May 15, 2022 8:56:59 GMT -6

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Post by emeraldpeace on May 15, 2022 8:56:59 GMT -6

Has there ever been both a record high and a record low on the same day with the same airmass in any part of the world? I know there have been a few occasions where a strong cold front or a chinook wind comes by and there's a huge 24 hour range, but I'm wondering if it's possible to achieve the feat with just diurnal heating. For example, if Kenner Airport on May 15th had a low of 51 F and a high of 98 F.

emeraldpeace Category 1 Posts: 112 Location: New York City, NY	Record High/Low on the Same Day With the Same Airmass May 15, 2022 9:11:31 GMT -6 Quote Select Post Deselect Post Link to Post Back to Top Post by emeraldpeace on May 15, 2022 9:11:31 GMT -6 Actually, now that I think about it, another scenario where that might happen would be a heatwave followed by convection causing rain-cooled air.

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Record High/Low on the Same Day With the Same Airmass May 17, 2022 12:43:45 GMT -6 via mobile

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Post by Shibumi-Mandeville I-12/Hwy59 on May 17, 2022 12:43:45 GMT -6

I think it depends on what you mean by "same air mass".

If you mean no frontal passage, no wind direction change, etc., then I'd say it would be doubtful.

The only scenario I can think of would be somewhere in the tropics where there is not a large diurnal temp range to begin with...then perhaps a heavy hail storm (which happens every year somewhere)...the ice would cool the near surface temp a bit by direct convection/conduction but also as the heat needed to melt the ice would be removed from the air.

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Zack Fradella: Yea, Lezak had a paper peer reviewed and published a year or so ago. Nov 5, 2022 9:03:24 GMT -6

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Zack Fradella: Not sure, the LRC is something that takes a lot of work to follow and keep up with. It's not as easy as looking at the parameters and making a forecast. This deters many from even giving it a chance. Also, there is some doubt from the weather world. Nov 4, 2022 3:38:49 GMT -6

stormydds: Zack, a friend had a meeting in Lafayette which Rob Perillo spoke.He asked him why the LRC is not used to forecast hurricanes by NOAA.His answer was that Lezak won't share the info.I saw the podcast you and David made with Gary.He seemed open.What gives? Nov 3, 2022 14:39:19 GMT -6

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