SOMETHING BREWING? 29.79 MB 120 MILES E. OF CAPE.........

#1 Postby **dixiebreeze** » Tue Oct 28, 2003 6:53 pm

Canaveral, in the area of those "multiple lows" mentioned in the 5:30 TWO -- also looks like pressure has been dropping at this buoy all day:

Conditions at 41010 as of
(6:00 pm EST)
2300 GMT on 10/28/2003: Wind Direction (WDIR): S ( 170 deg true )
Wind Speed (WSPD): 15.5 kts
Wind Gust (GST): 19.4 kts
Wave Height (WVHT): 4.9 ft
Dominant Wave Period (DPD): 5 sec
Atmospheric Pressure (PRES): 29.79 in
Pressure Tendency (PTDY): +0.00 in ( Steady )
Air Temperature (ATMP): 80.1 °F
Water Temperature (WTMP): 80.8 °F
Dew Point (DEWP): 74.1 °F
Heat Index (HEAT): 84.7 °F

#2 Postby **cycloneye** » Tue Oct 28, 2003 6:55 pm

dixie those lows are well east of Florida one north of PR by 400 miles and the other the exNicholas one around SE of Bermuda so nothing near the floridas coast.

#3 Postby **dixiebreeze** » Tue Oct 28, 2003 6:58 pm

Luis, then that means no reason for the low and falling pressures?

Stormsfury · #4 Postby **Stormsfury** » Tue Oct 28, 2003 7:10 pm

dixiebreeze wrote:Canaveral, in the area of those "multiple lows" mentioned in the 5:30 TWO -- also looks like pressure has been dropping at this buoy all day:

Conditions at 41010 as of
(6:00 pm EST)
2300 GMT on 10/28/2003: Wind Direction (WDIR): S ( 170 deg true )
Wind Speed (WSPD): 15.5 kts
Wind Gust (GST): 19.4 kts
Wave Height (WVHT): 4.9 ft
Dominant Wave Period (DPD): 5 sec
Atmospheric Pressure (PRES): 29.79 in
Pressure Tendency (PTDY): +0.00 in ( Steady )
Air Temperature (ATMP): 80.1 °F
Water Temperature (WTMP): 80.8 °F
Dew Point (DEWP): 74.1 °F
Heat Index (HEAT): 84.7 °F

Dixie, this is a baroclinic reaction to the energy transfer from one coast to the other. This happens a lot during cold air damming scenarios when the surface low cannot penetrate through a cooler dome of air at the surface and is forced by baroclinic means to spawn another surface low (or a transferral of energy).

SF

#5 Postby **dixiebreeze** » Tue Oct 28, 2003 7:15 pm

Thanks for the explanation SF.

#6 Postby **wxman57** » Tue Oct 28, 2003 7:26 pm

I believe it's simply a cold front moving through. There's no cold air damming involved in Florida. Cold air damming occurs in mountainous areas, like east of the Apalachians when there is a stationary high center over New England.

However, if you'd like to learn about cold air damming, there's an excellent Comet course online:

http://meted.ucar.edu/mesoprim/cad/index.htm

ColdFront77 · #7 Postby **ColdFront77** » Tue Oct 28, 2003 7:34 pm

Sorry for answering for SF. But he is well aware of this site, he posted a link to it several days ago in another thread.

SOMETHING BREWING? 29.79 MB 120 MILES E. OF CAPE.........

SOMETHING BREWING? 29.79 MB 120 MILES E. OF CAPE.........

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