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General Discussion >> Hurricane Ask/Tell
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Keith234
Storm Chaser


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Posts: 921
Loc: 40.7N/73.3W Long Island
Re: Pressure drop accounting for latitude
      Sat Oct 02 2004 08:44 AM

I agree with you, I got this from a book, Weather Predicting Simplified by Micheal William Carr. On page 23, I'll parapharse in addition a low- pressure system is rapidly intensifying if its central sea-level pressure drops at least 24 mb in 24 hours at 60 degrees latitude. At other latitudes the sea-level pressure drop is multiplied by a correction factor of sin (latitude of a low's center)/ sin60. For example, at 40 degrees north the factor would be sin40/ sin60, or 9.8/9.9, which equals 0.989. Then since there are 24 hours multiply that by a pressure drop of .989 an hour to get 23.7mb(pg. 23, Weather Predicting Simplified). He is saying that the pressure drop is a factor of the latitude in degrees, maybe he thinks, as you travel further away from the equator pressure drops faster but why?

Edit: I found this website on it http://weather.ou.edu/~mbergman/bombcyclogenesis/index2.html

--------------------
"I became insane with horrible periods of sanity"
Edgar Allan Poe


Edited by Keith234 (Sat Oct 02 2004 12:53 PM)

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Entire topic
Subject Posted by Posted on
* Pressure drop accounting for latitude Keith234 Sat Oct 02 2004 08:44 AM
. * * Re: Pressure drop accounting for latitude Clark   Fri Oct 01 2004 07:29 PM
. * * Re: Pressure drop accounting for latitude Keith234   Fri Oct 01 2004 07:33 PM
. * * Re: Pressure drop accounting for latitude Clark   Fri Oct 01 2004 10:59 PM
. * * Re: Pressure drop accounting for latitude Keith234   Sat Oct 02 2004 08:44 AM
. * * Re: Pressure drop accounting for latitude Clark   Sat Oct 02 2004 06:57 PM
. * * Re: Pressure drop accounting for latitude Keith234   Sat Oct 02 2004 07:19 PM
. * * Re: Pressure drop accounting for latitude Keith234   Sat Oct 02 2004 04:21 PM
. * * Re: Pressure drop accounting for latitude Dawn   Fri Oct 01 2004 08:44 PM
. * * Re: Pressure drop accounting for latitude Keith234   Fri Oct 01 2004 08:54 PM
. * * Re: Pressure drop accounting for latitude Dawn   Fri Oct 01 2004 09:20 PM

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