WPAC: MA-ON - Post-Tropical

[Yellow Evan]

TXPQ23 KNES 221830
TCSWNP

A. 10W (MA-ON)

B. 22/1730Z

C. 16.2N

D. 123.1E

E. THREE/HIMAWARI-8

F. T2.5/2.5

G. IR/EIR/SWIR

H. REMARKS...SYSTEM CHARACTERIZED BY CIRCULARLY DEFINED CLOUD LINES
AND A CENTER UNDER A LARGE AREA OF COLD OVERCAST RESULTS IN A DT OF
2.0. THE MET IS 2.5 BASED ON A 24 HOUR SLOW DEVELOPING TREND. THE PT
AGREES WITH THE MET. THE FT IS BASED ON THE MET DUE TO UNCERTAINTY IN
EXACT CENTER LOCATION.

I. ADDL POSITIONS

NIL


...GATLING

Why is a shear pattern being used?

[doomhaMwx]

For a storm with a clear microwave eye, the discrepancy in the 18Z position is quite large between JTWC (16.6N 122.7E) and JMA (16.2N 123.2E) — a distance of ~70km from each other. JMA's makes more sense based on the latest microwave pass.
 https://twitter.com/doomhaMwx/status/1561810801107038208

[mrbagyo]

Sea level pressure in Maconacon (Northern Isabela) is down to 993 hPa

[mrbagyo]

as of 8:20 AM local time
Maconacon - 33kph from the NW / SLP : 990.52 hpa

as of 8:30 AM PST
Maconacon - 37 kph from NW (309.7°) / SLP : 986.82 hPa

as of 8:40 AM PST
Maconacon - 38.16 kph from NW (298.5°) / SLP : 985.52 hPa

as of 8:50 AM PST
Maconacon - 36 kph from NW (293.5°) / SLP : 983.52 hPa

as of 9:00 AM PST
Maconacon - 39.96 kph from W (282.1°) / SLP : 981.22 hPa

[doomhaMwx]

10W MA-ON 220823 0000 17.0N 122.6E WPAC 60 986

[mrbagyo]

Site ID Site Name Temperature Humidity Wind Speed Wind Direction Precipitation Pressure Solar Radiation Last Updated
5159 Maconacon, 26°C 75% 25.2 km/hr WSW 1 mm/hr 979.7 55 August 23, 2022, 10:00 am
Isabela AWS

[doomhaMwx]

 https://twitter.com/arielrojasPH/status/1561909031857696768

[mrbagyo]

 https://twitter.com/dost_pagasa/status/1561912903724593152

[doomhaMwx]

PAGASA could've upgraded Ma-On to a typhoon with that radar presentation and data from Maconacon AWS. It seems they ignore data from their own AWS even in situations like this. They kept it at 60kts, 985mb in their 11AM bulletin despite the AWS recording an MSLP of ~980mb.

[mrbagyo]

[Iceresistance]

Now has left Luzon and could be heading towards China as a typhoon.

[Ed_2001]

Continuing shear is hindering reintensification in the SCS, an official upgrade to typhoon status looks unlikely now. But Ma-On was probably a typhoon right before landfall on Luzon, we’ll see how BST decides to treat it next year…

[doomhaMwx]

Interestingly, China Met Administration has been calling it a typhoon for a while now and is currently analyzed at 70kts/970mb despite having a partially-exposed LLCC. I wonder if this is based on surface observations?

[Hurricane2022]

Ma-off

[weeniepatrol]

Ma-off

Welcome to S2K

[Iceresistance]

JTWC has issued the final warning because of rapid dissipation expected after landfall in Southern China.