After 45 freaking warnings and 11 days, Krosa is finally done for:
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Krosa (Japanese Typhoon Number 9) is located 1604 km east-northeast of
Misawa,
Japan, and has tracked east-northeastward at 41 km/h (22 knots) over the past 6 hours. Minimum central pressure at 03/18:00 UTC is 983 hPa. Maximum significant wave height is 6.7 meters (22 feet).
Infrared imagery shows 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 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. Krosa 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
wind shear are creating an increasingly hostile environment for tropical development.
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 JTWC. The system will be closely monitored for signs of regeneration.
Warning Number 45. Information provided by the Joint Typhoon Warning Center (JTWC).