Tropical Depression INGRID: Discussion of Recon Data

[DrewFL]

You might notice that none of these flights are scheduled until Saturday. Tonight's flight was a "Research" flight!

[cycloneye]

Matt,is there another low?

[Matt-hurricanewatcher]

The lowest pressure of 1002.1 was found to be at 14.1 north/49.08 west. Right under the convection. So I think there maybe.

[bvigal]

I used to decipher these myself, but by the time I was just beginning to figure them out, they were posted here! So from a couple of season relying on the recon experts here, I've forgotten what's what in all that data. Could someone please post an update on what recon has found in the last 45min?

[Chacor]

VDM from shortly ago:

185
URNT12 KWBC 141145
VORTEX DATA MESSAGE
A. 14/1136Z
B. 15 DEG 4 MIN N
49 DEG 42 MIN W
C. 850 MB 1475 M
D. 51 KT
E. 215 DEG 45 NM
F. 308 DEG 32 KT
G. 222 DEG 55 NM
H. 1004 MB
I. 21 C/1539 M
J. 22 C/1540 M
K. 18 C/NA
L. POORLY DEFINED
M. NA
N. 12345/8
O. 1/1 NM
P. NOAA2 0208A INGRID OB 14 AL082007
MAX FL WIND 40 KT NW QUAD 1028Z
MAX SFMR WIND 51 KT SW QUAD 1118Z
SLP FROM DROPSONDE

[bvigal]

Thanks! So, since 5am, it has moved mostly west, and pressure up 2mb? Are those winds for real?

[Chacor]

Well, that information is only from their last pass through what they think is the centre. Whether the winds are accurate... well, 40 kt FL is not impressive at all and might justify downgrading to a TD. However the SFMR reading appears valid, so...

[artist]

what was the highest found with the latest flight?

[HURAKAN]

What is the percentage of wind reduction for this flight?

[Thunder44]

What is the percentage of wind reduction for this flight?

They are flying around 3800 meters. I think the reduction would be near 90%.

[CrazyC83]

44 kt FL is the highest so far. Isn't the reduction 100% (i.e. FL = surface) at the level they are flying?

[x-y-no]

You might notice that none of these flights are scheduled until Saturday. Tonight's flight was a "Research" flight!

Well, I think that makes sense. Ingrid isn't going to threaten land anytime soon, but this is a good opportunity to study a storm under strong shear - perhaps helping future intensity forecasts.

[miamicanes177]

What exactly is a research flight? What are they doing other than getting the storms winds and pressure?

[aguaviva]

The lowest pressure of 1002.1 was found to be at 14.1 north/49.08 west. Right under the convection. So I think there maybe.

Does it have a chance to take over and how does that help prolong her life or alter where she will be at in 3 days?

[HenkL]

According to the extrapolated SLP the plane is in the SE quad for a while, and still the winds are E-SE on flight level.

[cycloneye]

Fact,why did you put (uhh...) in that set?

[JonathanBelles]

Fact,why did you put (uhh...) in that set?

never mind now. I got my question asked. I didnt know what all the 999's meant.

[cycloneye]

Fact,the plane is acending,so the mission is over.

[JonathanBelles]

Fact,the plane is acending,so the mission is over.

yep, I just figured that out.

[WindRunner]

I posted this in the data thread first, but it's better off in here.




As an FYI . . .

021400 1703N 05136W 6954 03227 0089 +115 +030 108036 036 029 000 00
021430 1703N 05138W 6697 03542 0082 +102 +000 108034 035 026 001 00
021500 1702N 05140W 6437 03864 0083 +078 -014 108034 034 027 000 00
021530 1701N 05142W 6321 04015 0086 +067 -018 108031 032 029 000 00
021600 1700N 05144W 6251 04107 0088 +060 -023 103030 030 024 000 00
021630 1659N 05146W 6152 04239 0090 +051 -035 099027 028 025 000 00
021700 1658N 05149W 6047 04379 0088 +044 -041 094025 025 027 000 00

Bolded is the height. When you see it start to rise drastically like that and change by a couple thousand meters, it's a good sign that they are rising to cruising altitude and the mission is over.