Buoy 42058 reporting NNW winds (LLC or outflow boundary?)

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drezee
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Buoy 42058 reporting NNW winds (LLC or outflow boundary?)

#1 Postby drezee » Tue Jun 14, 2005 8:35 am

Wind Direction (WDIR): NNW ( 330 deg true )
Wind Speed (WSPD): 19.4 kts
Wind Gust (GST): 25.3 kts

The abrupt change screams outflow boundary but the convection is not fading...
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#2 Postby Thunder44 » Tue Jun 14, 2005 8:41 am

That might not be so abrupt. Last report was from two hours ago.
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#3 Postby drezee » Tue Jun 14, 2005 8:45 am

1250 NNW ( 330 deg ) 19.2 kts
1240 NE ( 43 deg ) 12.8 kts
1230 E ( 97 deg ) 19.6 kts
1220 E ( 99 deg ) 20.8 kts
1210 ESE ( 112 deg ) 20.0 kts
1200 E ( 96 deg ) 14.0 kts


This is what I mean:

switched from E to NNW in one hour

also 73 degrees in 10 minutes....
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#4 Postby Thunder44 » Tue Jun 14, 2005 8:50 am

drezee wrote:1250 NNW ( 330 deg ) 19.2 kts
1240 NE ( 43 deg ) 12.8 kts
1230 E ( 97 deg ) 19.6 kts
1220 E ( 99 deg ) 20.8 kts
1210 ESE ( 112 deg ) 20.0 kts
1200 E ( 96 deg ) 14.0 kts


This is what I mean:

switched from E to NNW in one hour

also 73 degrees in 10 minutes....


Ok, I see that. I also do see a small outflow boundary on the SW side of that blob of convection. Take a close-up loop of it on this site.

http://wwwghcc.msfc.nasa.gov/GOES/goeseastconus.html
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#5 Postby weatherwindow » Tue Jun 14, 2005 9:03 am

let's see if it persists....hallowed persistence(in the words of an unnamed nws staffer)....pressures in the area have come up an average of 1 mb over the last 18 hours but a diurnal minimum of 1007 is still pretty low....IMHO, in the absence of shear, conditions in the western carib are about as favorable for trop development as they will ever be. :roll:
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#6 Postby Thunder44 » Tue Jun 14, 2005 9:13 am

Now they are reporting ENE winds again at 1350 . So it looks like was just outflow boundary.
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