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riverwalker

(8,694 posts) Mon Oct 29, 2012, 04:50 PM Oct 2012

Barometric pressure in Philly 28.29 ?? [View all]

Hurricane Central‏@twc_hurricane

Barometric pressure in #Philly now 28.39"; this breaks their all-time low pressure record of 28.43" set in March '93 superstorm #Sandy

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18 replies

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Barometric pressure in Philly 28.29 ?? [View all] riverwalker Oct 2012 OP

That's a lot of water vapor ffr Oct 2012 #1

Yeah, that's a really low baro...but it doesn't have anything to do with water vapor dumbledork Oct 2012 #8

Welcome to DU, dumbledork! calimary Oct 2012 #10

Are you sure? I've always understood it to be based on atomic weight ffr Oct 2012 #12

Yes, it is (oddly) true that water is lighter than air (in its gaseous state), but dumbledork Oct 2012 #15

Thanks, I think I learned a little, but how can I... ffr Oct 2012 #16

Well, the amount of gaseous water (vapor) almost always decreases with altitude, mainly due to dumbledork Oct 2012 #18

My head aches just thinking about that KittyWampus Oct 2012 #2

My sinuses and jaw ache--it feels funny here. nt msanthrope Oct 2012 #3

Yep, believe it. Latest advisory from NHC. . . DinahMoeHum Oct 2012 #4

Wow, 958mb Canuckistanian Oct 2012 #5

Okay, that's a number I understand kentauros Oct 2012 #11

I think I have had a post-mirgraine hangover for days now. Maybe this is why. Glimmer of Hope Oct 2012 #6

Heard similar, but lower, current low in Delaware. elleng Oct 2012 #7

But there is no climate change... calimary Oct 2012 #9

That's mighty low RobertEarl Oct 2012 #13

As of the NWS Mt. Holly 5:54 pm update BumRushDaShow Oct 2012 #14

English please... :-)..break it down for us and use grunts sparingly ..... tia uponit7771 Oct 2012 #17