WPAC: KROSA - Post-Tropical - Discussion

[cycloneye]

It keeps going, and going, and going .....

[cycloneye]

Keeps going and is still have a few days to get some more ACE. So far it has 7.9 and is the most of all the systems at WPAC in 2025.

[StormWeather]

Keeps going and is still have a few days to get some more ACE. So far it has 7.9 and is the most of all the systems at WPAC in 2025.

https://i.imgur.com/0svHt6C.gif

The fact that Krosa never got passed 100 kts (which Danas did) (Krosa peaked at 80 kts) and has made more ACE than any other WPAC storm to date is astonishing, like how Philippe made roughly 9 ACE in late September and early October 2023 despite remaining a TS the whole way through.

[cycloneye]

Maybe it goes up to typhoon again?

[cycloneye]

Finnally the last straw after being a cyclone for 11 days.

[StormWeather]

Finnally the last straw after being a cyclone for 11 days.

https://i.imgur.com/PyuMwL0.gif

How is this thing still alive?

[cycloneye]

Finnally bye.

REMARKS:
032100Z POSITION NEAR 42.3N 161.7E.
03AUG25. TROPICAL STORM 12W (KROSA), LOCATED APPROXIMATELY 866 NM
EAST-NORTHEAST OF MISAWA, JAPAN, HAS TRACKED EAST-NORTHEASTWARD
AT 22 KTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED (EIR)
SATELLITE IMAGERY DEPICTS AN ELONGATED AND HEAVILY SHEARED SYSTEM,
WITH NEARLY FULLY EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC) AND
REMAINING ASSOCIATED CONVECTION TO THE EAST. ADDITIONALLY, AN OLDER
021048Z METOP-B ASCAT IMAGE SHOWED HIGHLY ASYMMETRIC WIND FIELD,
WITH HIGHER INTENSITIES ALONG THE SOUTHERN PORTION OF THE
CIRCULATION. THE SYSTEM IS CURRENTLY BECOMING EXTRATROPICAL,
DUE TO CROSSING INTO THE BAROCLINIC ZONE TO THE NORTH. TS 12W IS
POSITIONED POLEWARD OF A WESTERN EXTENSION OF A SUBTROPICAL JET.
ASSESSMENT IS SUPPORTED BY GFS AND ECMWF PHASE CYCLONE DIAGRAMS.
ADDITIONALLY, VERY COLD (17-18 C) SEA SURFACE TEMPERATURES AND
INCREASING VERTICAL WIND SHEAR ARE CREATING AN INCREASINGLY HOSTILE
ENVIRONMENT FOR TROPICAL DEVELOPMENT. NUMERICAL MODEL GUIDANCE IS
IN STRONG AGREEMENT IN REGARD TO THE TRACK AND INTENSITY, RESULTING
IN HIGH CONFIDENCE OF THE OFFICIAL JTWC FORECAST. THIS IS THE FINAL
WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI.