ATL : TROPICAL DEPRESSION ALEX - RECON DISCUSSION

[clfenwi]

Yep, 8 nautical miles just east of due north between fixes.

[cycloneye]

Plane going for another pass shortly.Lets see if the pressure drops more and if the winds are up.

[clfenwi]

A. 29/02:05:00Z
B. 20 deg 52 min N
091 deg 33 min W

29/03:41:00Z
B. 21 deg 04 min N
091 deg 40 min W

Finally, some west component again between fixes. About a 330° heading at 9 knots, between fixes.

[Dave]

985 mb on 3rd pass.

[cycloneye]

Also a little bit faster.

[brunota2003]

It is still heading way more N than anything though...and it is possible the bump west was just a wobble due to the convection developing explosively.

[cycloneye]

Lets see if the next pass tells us is a wobble or a trend.

[Hurricanewatcher2007]

Also don't forget that each pass through the chances of them hitting the exact center is remote. So each "center" fix they are just sampling a point with in the general center.

[ROCK]

over all average still is north....3 fixes....making a run at whats left of the weakness around LA..

[Hurricanewatcher2007]

Also don't forget that each pass through the chances of them hitting the exact center is remote. So each "center" fix they are just sampling a point with in the general center.

Here is a example of what I am talking about:



Orange line is the true direction the center is moving and the brown line is the direction you would think the center was moving based on the center fixes in this example.

[Normandy]

Also don't forget that each pass through the chances of them hitting the exact center is remote. So each "center" fix they are just sampling a point with in the general center.

Here is a example of what I am talking about:



Orange line is the true direction the center is moving and the brown line is the direction you would think the center was moving based on the center fixes in this example.

The absolute center is the wind shift observed by recon, and yes that may be embedded in a larger "overall" center or gyre, but I would deduce that the true motion of the storm is indeed NNW, with wobbles here and there.

[americanre1]

Any idea if they are going to do recon on the upper body of this system???

[cycloneye]

HURAKAN, the % of reduction is not 75% right?

[cycloneye]

Set on the 60.s and still not reaches the center.

[HURAKAN]

HURAKAN, the % of reduction is not 75% right?

It isn't 75% but I don't know and can't find the reduction at 850 mb

[HURAKAN]

Got it!

Next was the reduction of Flight Level Winds:

1000 mb flight level = 80%

925 mb flight level = 75%

850 mb flight level = 80%

700 mb flight level = 90%

Link - http://www.wunderground.com/blog/StormW ... trynum=643

[cycloneye]

Thank you for finding the whole data.

[cycloneye]

The lowest pressure yet found,982.7 mbs.

[KWT]

What level is this recon flight flying at by the way?

[cycloneye]

What level is this recon flight flying at by the way?

850 mb.