ATL: Tropical Storm Bertha RECON Discussion

[Derek Ortt]

this reduction factor is about what I expected

Very similar in structure to Isabel at landfall; hence, a similar reduction

[RL3AO]

This will be the final trip through the center I think. Pojo said they would make one alpha pattern.

[Thunder44]

We have a winner for today's recon contest:

viewtopic.php?f=25&t=101778

The contest for tomorrow's mission is already up:

viewtopic.php?f=25&t=101784

[KWT]

Yeah they are just making one alpha movement due to the distance from the base they are, looks like recon is just turning into the NE quadrant now, this is the interesting pass!

Thunder, still surprised I've won to be honest lol!

[brunota2003]

I think the strongest winds will likely be found in the SW portion of the storm, which should be measured on this next pass.

[Chris_in_Tampa]

Isn't the wind profile a little odd in this storm? Take a look at a dropsonde:
http://www.tropicalatlantic.com/recon/a ... 996-103-69
Why are the winds so high in the middle? I know it is not always a smooth curve, but it looks odder than other storms. Is this storm particularly shallow?

[KWT]

Well interestingly the NE quadrant appears to be a little weaker then the SE side with max 10 second winds of only 90kts compared to 99kts in the SE. Now for the next center pass and the pass through the SW quadrant, then its back to base, we shall see whether the Sw quadrant has winds high enough to warrent an upgrade because the NE doesn't.

[KWT]

Extrap now down to 974.9mbs so the likely pressure from the NHC will probably come down to 976mbs by the time we come through to the next vortex, now heading towards the SW eyewall.

[gotoman38]

Isn't the wind profile a little odd in this storm? Take a look at a dropsonde:
http://www.tropicalatlantic.com/recon/a ... 996-103-69
Why are the winds so high in the middle? I know it is not always a smooth curve, but it looks odder than other storms. Is this storm particularly shallow?

Chris - that is one AWESOME decoder! Congratulations!

[HURAKAN]

602
URNT12 KNHC 111913
VORTEX DATA MESSAGE AL022008
A. 11/18:47:20Z
B. 28 deg 54 min N
062 deg 04 min W
C. 700 mb 2872 m
D. 69 kt
E. 056 deg 029 nm
F. 145 deg 091 kt
G. 055 deg 034 nm
H. 976 mb
I. 8 C/ 3049 m
J. 13 C/ 3046 m
K. 5 C/ NA
L. CLOSED
M. C55
N. 12345/ 7
O. 0.02 / 1 nm
P. AF309 0102A BERTHA OB 16
MAX FL WIND 99 KT SE QUAD 17:17:20 Z

[KWT]

Yep 976mbs a little deeper then the last vortex though with such a huge eye I suppose its hard to hit the center spot on.

[Chris_in_Tampa]

Isn't the wind profile a little odd in this storm? Take a look at a dropsonde:
http://www.tropicalatlantic.com/recon/a ... 996-103-69
Why are the winds so high in the middle? I know it is not always a smooth curve, but it looks odder than other storms. Is this storm particularly shallow?

Chris - that is one AWESOME decoder! Congratulations!

Thanks.

[HURAKAN]

Is the RECON place already leaving the storm?

[brunota2003]

Only one Alpha pattern today, Hurakan, due to distance.

[KWT]

Yeah because remember it took them about 4hrs just to get into the hurricane so its not surprising they can only do one pattern today, recon is going to go tomorrow as well from the looks of things.

[HURAKAN]

ATLANTIC REQUIREMENTS
1. HURRICANE BERTHA.....TEAL 71
A. 12/1800Z
B. AFXXX 0202A BERTHA
C. 12/1200Z
D. 30.5N 62.5W
E. 12/1700Z TO 12/2000Z
F. SFC TO 10,000 FT

[RL3AO]

Is the RECON place already leaving the storm?

Yeah. Pojo said yesterday they only had enough fuel for one alpha pattern.

[txwatcher91]

So what were the strongest winds found at the surface? I was away today so couldn't check.

[RL3AO]

So what were the strongest winds found at the surface? I was away today so couldn't check.

SMFR picked up low to mid 70s (kt), FL winds peaked mid to upper 90s. NHC compromised and went with 80.

[brunota2003]

So what were the strongest winds found at the surface? I was away today so couldn't check.

SMFR picked up low to mid 70s (kt), FL winds peaked mid to upper 90s. NHC compromised and went with 80.

NHC also mentioned the SMFR was rain contaminated, that is another reason for going with 80.