While pulses of deep convection have occurred several times, organized and persistent deep convection near the center of Henriette has been lacking for nearly 24 hours and visible satellite imagery clearly shows a low cloud swirl displaced far from lingering high level clouds from earlier convection.
Henriette has always been a very small system. Data sources strongly suggesting that the warm core has been severely disrupted or destroyed.
Henriette is now deemed to be a post-tropical low.
This will be the last advisory for Henriette issued by the Central Pacific Hurricane Center. The remnant will continue on a westerly tack to the south of deep layered ridging for the next couple of days until dissipation occurs.
Since it is a very small system, it will be extremely difficult for a warm core to redevelop, even though ocean temperatures will be increasing and vertical wind shear will be weak. If redevelopment occurs, CPHC will resume the issuance of advisories using the same tropical cyclone name.
DISCUSSION AND 48-HOUR OUTLOOK
At 11:00 a.m. HST, 2100 UTC, the low cloud feature marking the center of post-tropical cyclone Henriette was located near latitude 13.5 north, longitude 158.5 west. The post-tropical cyclone is moving toward the west near 22 mph, 35 km/h, and this motion is expected to continue over the next day or two until dissipation occurs.
Maximum sustained winds are near 35 mph, 55 km/h, with higher gusts. The remnant will continue to weaken over the next day or two until dissipation occurs.
The estimated minimum central pressure is 1010 mb, 29.83 inches.
SUMMARY OF 11:00 A.M. INFORMATION
- LOCATION: 13.5N 158.5W
ABOUT 485 MI SSW OF HILO HAWAII
ABOUT 540 MI S OF HONOLULU HAWAII
- MAXIMUM SUSTAINED WINDS: 35 MPH
- PRESENT MOVEMENT: W OR 270 DEGREES AT 22 MPH
- MINIMUM CENTRAL PRESSURE: 1010 MB or 29.83 INCHES
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