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Recon images through 10:23pm EDT

Posted by Chris in Tampa on 9/24/2017, 10:39 pm

Recon:
http://hurricanecity.com/recon/

NOAA P-3 mission has completed. Air Force is out there right now.







Pressure was extrapolated in latest vortex, not measured:

URNT12 KNHC 250137
VORTEX DATA MESSAGE AL152017
A. 25/01:10:40Z
B. 29 deg 47 min N
072 deg 55 min W
C. 700 mb 2665 m
D. 68 kt
E. 053 deg 17 nm
F. 134 deg 86 kt
G. 052 deg 23 nm
H. EXTRAP 952 mb
I. 9 C / 3046 m
J. 15 C / 3050 m
K. NA / NA
L. OPEN SW
M. C30
N. 1234 / 7
O. 0.02 / 2 nm
P. AF309 2015A MARIA OB 11
MAX FL WIND 91 KT 141 / 26 NM 23:35:30Z
SLP EXTRAP FROM 700 MB
MAX FL TEMP 16 C 229 / 8 NM FROM FL CNTR



Location of tropical storm force wind field according to 10 second estimated surface winds by
SFMR instrument.

NW quadrant turn point:

About 5 HDOB icons west of first appearance of orange colored wind barbs, which are colored
based on flight level winds, was when 34 knots (39mph) started. [SFMR of 36 kts (41 mph)]

SE quadrant turn point:

SFMR of 41 kts (47 mph) which was noted as suspect, as well as one before of 44 kts (51 mph)
which was suspect. Before that 43 kts (49.5 mph).

NE quadrant turn point:

SFMR of 42 kts (48 mph)

SW quadrant turn point:

SFMR of 41 kts (47 mph) which was noted as suspect, but one before 43 kts (49.5 mph).

So you can see other than when they turned into the storm, they didn't sample the full tropical
storm force wind field. But you can at least how massive the wind field is based on just the wind
barbs alone and why there are tropical storm watches for parts of the coast.

And it's size allows it to push more water against the coast too, which is why there are storm surge watches.


Maria loop from NOAA hurricane hunter aircraft's lower fuselage radar from 2:06pm to 9:18pm EDT
Sunday. 5pm EDT NHC track. (Credit: NOAA-AOC):


50



In this thread:

5pm EDT Sunday: Tropical storm & storm surge watches issued for part of North Carolina coast - Chris in Tampa, 9/24/2017, 5:09 pm

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