Cozumel Water Temperature

Chris Bergquist <chrisb1erg*NOSPAM*@pacbell.net> wrote:

>Will be in Cozumel for 10 days starting Saturday. What kind of water
>temperature are they getting currently?

By one website about 79 Deg F

http://www.diveparadise.com/

Ron Lee

Chris Bergquist <chrisb1erg*NOSPAM*@pacbell.net> wrote:

>Will be in Cozumel for 10 days starting Saturday. What kind of water
>temperature are they getting currently?

By one website about 79 Deg F

http://www.diveparadise.com/

Ron Lee

Chris Bergquist <chrisb1erg*NOSPAM*@pacbell.net> wrote:

>Will be in Cozumel for 10 days starting Saturday. What kind of water
>temperature are they getting currently?

By one website about 79 Deg F

http://www.diveparadise.com/

Ron Lee

Ron Lee wrote:
> Chris Bergquist <chrisb1erg*NOSPAM*@pacbell.net> wrote:
>
> >Will be in Cozumel for 10 days starting Saturday. What kind of water
> >temperature are they getting currently?
>
> By one website about 79 Deg F
>
> http://www.diveparadise.com/

It does say that, but I'd consider that 79F claim to be suspiciously
low.


First off, surface water that's 79F (26C) or colder would be coded in
blue on this map:
http://www.aoml.noaa.gov/phod/dataph...06197gosst.png

And I don't see any blue. Interpreting the 3 shades of orange that are
shown to be near Coz, it is the temperature range of 28-31C, which
would be 82F-88F.

Ditto for this surface water temperature contour map, which suggests
28-29C (82-86F):
http://www.osdpd.noaa.gov/PSB/EPS/SS...gulfmex.fc.gif


Second, the hurricane season is generally defined by when surface water
temperatures permit the formation of storms, which is defined as warmer
than 26C (ie, warmer than 79F). We're now in week #7 of the hurricane
season...ie, nearly 2 months worth of summer heating after the point in
time where it typically starts to exceed 80F. By this same general
rule of thumb, temperatures aren't expected to get back down to 80F
until Oct/Nov.

Third, because all water warmer than 26C is what represents the
'potential energy' source for hurricanes, NOAA also tracks what's known
as the 26C Isotherm. Simplistically, this is how deep it is until you
get to the 26C (79F) "thermocline":

http://www.aoml.noaa.gov/phod/dataph...06197god26.png

The above map suggests that its currently around 100m (300+fsw) for
Cozumel (and ~125m around Cayman), although this of course doesn't
eliminate localized current upwellings.

"Regional sized" upwellings are typically formed by prevailing winds
pushing the warmed surface water away from shore, which then gets
replenished by deeper (thus cooler) water moving in towards shore.
Taking a longer look at the maps, it looks like there's some of this
transport mechnanism in evidence on the north side of the Yucatan. As
such, one could expect that this is being duplicated on a much smaller,
highly regional scale along the same lee side of the island of Cozumel.


-hh

Ron Lee wrote:
> Chris Bergquist <chrisb1erg*NOSPAM*@pacbell.net> wrote:
>
> >Will be in Cozumel for 10 days starting Saturday. What kind of water
> >temperature are they getting currently?
>
> By one website about 79 Deg F
>
> http://www.diveparadise.com/

It does say that, but I'd consider that 79F claim to be suspiciously
low.


First off, surface water that's 79F (26C) or colder would be coded in
blue on this map:
http://www.aoml.noaa.gov/phod/dataph...06197gosst.png

And I don't see any blue. Interpreting the 3 shades of orange that are
shown to be near Coz, it is the temperature range of 28-31C, which
would be 82F-88F.

Ditto for this surface water temperature contour map, which suggests
28-29C (82-86F):
http://www.osdpd.noaa.gov/PSB/EPS/SS...gulfmex.fc.gif


Second, the hurricane season is generally defined by when surface water
temperatures permit the formation of storms, which is defined as warmer
than 26C (ie, warmer than 79F). We're now in week #7 of the hurricane
season...ie, nearly 2 months worth of summer heating after the point in
time where it typically starts to exceed 80F. By this same general
rule of thumb, temperatures aren't expected to get back down to 80F
until Oct/Nov.

Third, because all water warmer than 26C is what represents the
'potential energy' source for hurricanes, NOAA also tracks what's known
as the 26C Isotherm. Simplistically, this is how deep it is until you
get to the 26C (79F) "thermocline":

http://www.aoml.noaa.gov/phod/dataph...06197god26.png

The above map suggests that its currently around 100m (300+fsw) for
Cozumel (and ~125m around Cayman), although this of course doesn't
eliminate localized current upwellings.

"Regional sized" upwellings are typically formed by prevailing winds
pushing the warmed surface water away from shore, which then gets
replenished by deeper (thus cooler) water moving in towards shore.
Taking a longer look at the maps, it looks like there's some of this
transport mechnanism in evidence on the north side of the Yucatan. As
such, one could expect that this is being duplicated on a much smaller,
highly regional scale along the same lee side of the island of Cozumel.


-hh

Ron Lee wrote:
> Chris Bergquist <chrisb1erg*NOSPAM*@pacbell.net> wrote:
>
> >Will be in Cozumel for 10 days starting Saturday. What kind of water
> >temperature are they getting currently?
>
> By one website about 79 Deg F
>
> http://www.diveparadise.com/

It does say that, but I'd consider that 79F claim to be suspiciously
low.


First off, surface water that's 79F (26C) or colder would be coded in
blue on this map:
http://www.aoml.noaa.gov/phod/dataph...06197gosst.png

And I don't see any blue. Interpreting the 3 shades of orange that are
shown to be near Coz, it is the temperature range of 28-31C, which
would be 82F-88F.

Ditto for this surface water temperature contour map, which suggests
28-29C (82-86F):
http://www.osdpd.noaa.gov/PSB/EPS/SS...gulfmex.fc.gif


Second, the hurricane season is generally defined by when surface water
temperatures permit the formation of storms, which is defined as warmer
than 26C (ie, warmer than 79F). We're now in week #7 of the hurricane
season...ie, nearly 2 months worth of summer heating after the point in
time where it typically starts to exceed 80F. By this same general
rule of thumb, temperatures aren't expected to get back down to 80F
until Oct/Nov.

Third, because all water warmer than 26C is what represents the
'potential energy' source for hurricanes, NOAA also tracks what's known
as the 26C Isotherm. Simplistically, this is how deep it is until you
get to the 26C (79F) "thermocline":

http://www.aoml.noaa.gov/phod/dataph...06197god26.png

The above map suggests that its currently around 100m (300+fsw) for
Cozumel (and ~125m around Cayman), although this of course doesn't
eliminate localized current upwellings.

"Regional sized" upwellings are typically formed by prevailing winds
pushing the warmed surface water away from shore, which then gets
replenished by deeper (thus cooler) water moving in towards shore.
Taking a longer look at the maps, it looks like there's some of this
transport mechnanism in evidence on the north side of the Yucatan. As
such, one could expect that this is being duplicated on a much smaller,
highly regional scale along the same lee side of the island of Cozumel.


-hh

On Mon, 17 Jul 2006 23:24:40 GMT, Chris Bergquist
<chrisb1erg*NOSPAM*@pacbell.net> wrote:

>Will be in Cozumel for 10 days starting Saturday. What kind of water
>temperature are they getting currently?
>
>Chris
>
>chrisb1erg*NOSPAM*@pacbell.net


It was 70 degrees in February too when I was there


Regards

Rob

Vulcan Bomber (101 Squadron)

On Mon, 17 Jul 2006 23:24:40 GMT, Chris Bergquist
<chrisb1erg*NOSPAM*@pacbell.net> wrote:

>Will be in Cozumel for 10 days starting Saturday. What kind of water
>temperature are they getting currently?
>
>Chris
>
>chrisb1erg*NOSPAM*@pacbell.net


It was 70 degrees in February too when I was there


Regards

Rob

Vulcan Bomber (101 Squadron)

On Mon, 17 Jul 2006 23:24:40 GMT, Chris Bergquist
<chrisb1erg*NOSPAM*@pacbell.net> wrote:

>Will be in Cozumel for 10 days starting Saturday. What kind of water
>temperature are they getting currently?
>
>Chris
>
>chrisb1erg*NOSPAM*@pacbell.net


It was 70 degrees in February too when I was there


Regards

Rob

Vulcan Bomber (101 Squadron)

-hh wrote:
> Ron Lee wrote:
>
>>Chris Bergquist <chrisb1erg*NOSPAM*@pacbell.net> wrote:
>>
>>
>>>Will be in Cozumel for 10 days starting Saturday. What kind of water
>>>temperature are they getting currently?
>>
>>By one website about 79 Deg F
>>
>>http://www.diveparadise.com/
>
>
> It does say that, but I'd consider that 79F claim to be suspiciously
> low.
>
>
> First off, surface water that's 79F (26C) or colder would be coded in
> blue on this map:
> http://www.aoml.noaa.gov/phod/dataph...06197gosst.png
>
> And I don't see any blue. Interpreting the 3 shades of orange that are
> shown to be near Coz, it is the temperature range of 28-31C, which
> would be 82F-88F.
>
> Ditto for this surface water temperature contour map, which suggests
> 28-29C (82-86F):
> http://www.osdpd.noaa.gov/PSB/EPS/SS...gulfmex.fc.gif
>
>
> Second, the hurricane season is generally defined by when surface water
> temperatures permit the formation of storms, which is defined as warmer
> than 26C (ie, warmer than 79F). We're now in week #7 of the hurricane
> season...ie, nearly 2 months worth of summer heating after the point in
> time where it typically starts to exceed 80F. By this same general
> rule of thumb, temperatures aren't expected to get back down to 80F
> until Oct/Nov.
>
> Third, because all water warmer than 26C is what represents the
> 'potential energy' source for hurricanes, NOAA also tracks what's known
> as the 26C Isotherm. Simplistically, this is how deep it is until you
> get to the 26C (79F) "thermocline":
>
> http://www.aoml.noaa.gov/phod/dataph...06197god26.png
>
> The above map suggests that its currently around 100m (300+fsw) for
> Cozumel (and ~125m around Cayman), although this of course doesn't
> eliminate localized current upwellings.
>
> "Regional sized" upwellings are typically formed by prevailing winds
> pushing the warmed surface water away from shore, which then gets
> replenished by deeper (thus cooler) water moving in towards shore.
> Taking a longer look at the maps, it looks like there's some of this
> transport mechnanism in evidence on the north side of the Yucatan. As
> such, one could expect that this is being duplicated on a much smaller,
> highly regional scale along the same lee side of the island of Cozumel.
>
>
> -hh
>


I did two dives on Palancar today, surface = 82, at 93' = 81. Wetsuit?
What the hell is that?

--
jer
email reply - I am not a 'ten'