how does air pressure affect Katrina? - Democratic Underground

H5N1

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Sun Aug-28-05 02:21 PM
Original message

how does air pressure affect Katrina?

Does Katrina create low pressure or vis versa?
What does the warm ocean water contribute to this?

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shraby

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Sun Aug-28-05 02:22 PM
Response to Original message

1. Katrina has a low pressure.

The warm water feeds the hurricane.

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H5N1

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Sun Aug-28-05 02:25 PM
Response to Reply #1

4. Does a lower pressure suck in more air?

Is that why the hurricane is getting bigger
with higher wind speed?

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Endangered Specie

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Sun Aug-28-05 02:24 PM
Response to Original message

2. Warm water to a hurricane is like gas to a fire.

I belive it 'creates' a low pressure, but not sure, I just know that the lower the pressure the worse it gets.

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steve2470

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Sun Aug-28-05 02:25 PM
Response to Reply #2

5. The faster, warmer and stronger air rises, the lower the air pressure

Hot water generates all of the above. Hurricanes are essentially giant low pressure areas.

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H5N1

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Sun Aug-28-05 02:28 PM
Response to Reply #5

7. interesting

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geomon666

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Sun Aug-28-05 02:24 PM
Response to Original message

3. Here you go

http://www.aoml.noaa.gov/hrd/tcfaq/tcfaqHED.html

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true_notes

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Sun Aug-28-05 02:27 PM
Response to Original message

6. How does Air Pressure Affect Katrina?

Pressure is the essential mechanism in creating strong winds. If you look on a weather map, you will see lines that enclose each other. These are called Isobars (or lines of equal pressure). The closer these are to one another, the greater the wind speed will be because of the rate the air parcels are spinning at.

In relation to Katrina, The winds are so strong because these Isobars are so tightly packed together, and with a central pressure of 908 millibars,the storm has a thicker density to speed the spinning of the air parcels.

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KT2000

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Sun Aug-28-05 02:42 PM
Response to Reply #6

10. Thanks

there is so much technical information about this hurricane on the news shows, it really helps to have some translation.

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MADem

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Sun Aug-28-05 02:30 PM
Response to Original message

8. There's a load of hot air on a pig farm in Crawford

If the hurricane picks that up, the nation will be bisected by the storm....

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Surya Gayatri

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Sun Aug-28-05 02:35 PM
Response to Original message

9. Just heard on WDSU streaming

that Katrina has the lowest barometirc pressure ever recorded for a storm in the Atlantic basin. Baaaad news. The lower the worse...:scared: Prayers for all those souls in LA, MS, and points north.

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