WHOA i'm shocked Hurricane Wilma shattered Gilbert's pressure of 888 mb
 

"nv55" escribió en el mensaje
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I know i'm late with this, but i am just totally shocked that hurricane
Wilma reached a lower pressure than Gilbert's 888 mb in 1988. Wilma
hit 882 mb! - i never thought what was a tropical depression a few
days ago, late in the season, would smash Gilbert's pressure record.
un****ingbelievable.


And, to have a comparison, what's the pressure inside a tornado ? i.e. in
the eye of a twister ? Is it negative ?

Why are there tornadoes around the hurricanes ? I thought they were very
distinct phenomenoms ?

WHOA i'm shocked Hurricane Wilma shattered Gilbert's pressureof 888 mb
 

Leto2 wrote:
"nv55" escribió en el mensaje
oups.com...

I know i'm late with this, but i am just totally shocked that hurricane
Wilma reached a lower pressure than Gilbert's 888 mb in 1988. Wilma
hit 882 mb! - i never thought what was a tropical depression a few
days ago, late in the season, would smash Gilbert's pressure record.
un****ingbelievable.



And, to have a comparison, what's the pressure inside a tornado ? i.e. in
the eye of a twister ? Is it negative ?

As far as I recall, pressure inside a tornado vortex has
not yet been measured, but the estimates I recall reading
about several years ago were down around 900 mb.

Pressure could not be negative. Pressure represents the
weight of the air in the column above you, which is a
positive quantity.


Why are there tornadoes around the hurricanes ? I thought they were very
distinct phenomenoms ?

Tornadoes emerge from thunderstorms, and hurricanes are
large organized systems of thunderstorms. Given the correct
wind profile in the lowest part of the atmosphere, any
thunderstorm in a humid environment can produce a tornado.
Sometimes the environment in parts of a hurricane will
support a tornado because the wind profile will allow it.
So yes, tornadoes and hurricanes are distinct phenomenon.
But one does not preclude the other.

Scott

WHOA i'm shocked Hurricane Wilma shattered Gilbert's pressure of 888 mb
 

In article ,
Scott wrote:

Leto2 wrote:
"nv55" escribió en el mensaje
oups.com...

I know i'm late with this, but i am just totally shocked that hurricane
Wilma reached a lower pressure than Gilbert's 888 mb in 1988. Wilma
hit 882 mb! - i never thought what was a tropical depression a few
days ago, late in the season, would smash Gilbert's pressure record.
un****ingbelievable.



And, to have a comparison, what's the pressure inside a tornado ? i.e. in
the eye of a twister ? Is it negative ?

As far as I recall, pressure inside a tornado vortex has
not yet been measured, but the estimates I recall reading
about several years ago were down around 900 mb.

Tim Samaras got a pressure-measuring probe into the Manchester, SD
tornado in 2003 and got a pressure drop of ~100 mb in about 10 seconds
as the tornado passed over the probe.

--
Harold Brooks
Head, Mesoscale Applications Group
NOAA/National Severe Storms Laboratory, Norman, OK

WHOA i'm shocked Hurricane Wilma shattered Gilbert's pressure of 888 mb
 

Wasn't Gilbert's pressure reading at landfall? I suspect some of the
older storms had lower pressure, before airflights.

WHOA i'm shocked Hurricane Wilma shattered Gilbert's pressureof 888 mb
 

pegleg wrote:
Wasn't Gilbert's pressure reading at landfall? I suspect some of the
older storms had lower pressure, before airflights.


No. The 888 occurred after the storm left Jamaica and
before it hit Yucatan.


Scott

WHOA i'm shocked Hurricane Wilma shattered Gilbert's pressureof 888 mb
 

pegleg wrote:
Wasn't Gilbert's pressure reading at landfall? I suspect some of the
older storms had lower pressure, before airflights.


Sent too soon.

See

ftp://ftp.nhc.noaa.gov/pub/storm_archives/atlantic/prelimat/atl1988/gilbert/prelim06.gif


Scott