FLORIDA
STORMS
Post-Tropical Cyclone Mindy
LOCATED
285 MI E OF CHARLESTON SOUTH CAROLINA
WINDS
35 MPH
PRESSURE
1005 MB
MOVING
ENE AT 29 MPH
From the National Hurricane Center at 1100 PM EDT Thu Sep 09 2021
Mindy becomes post-tropical as it accelerates away from the southeastern United States.
TAP LINKS BELOW TO FOCUS
Alerts
hazards
summary
DISCUSSION

There are no coastal watches or warnings in effect.

There are no coastal watches or warnings in effect.

None

None

At 1100 PM EDT (0300 UTC), the center of Post Tropical Cyclone Mindy was located near latitude 32.5 North, longitude 75.0 West. The post tropical cyclone is moving toward the east northeast near 29 mph (46 km/h), and this motion is expected to continue with a gradual slowdown until the system dissipates Friday night or Saturday morning. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Some gradual weakening of the winds is expected before the system dissipates. The estimated minimum central pressure is 1005 mb (29.68 inches).

At 1100 PM EDT (0300 UTC), the center of Post Tropical Cyclone Mindy was located near latitude 32.5 North, longitude 75.0 West. The post tropical cyclone is moving toward the east northeast near 29 mph (46 km/h), and this motion is expected to continue with a gradual slowdown until the system dissipates Friday night or Saturday morning. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Some gradual weakening of the winds is expected before the system dissipates. The estimated minimum central pressure is 1005 mb (29.68 inches).

The structure of Mindy this evening has become quite diffuse, with a linear band of convection mostly associated with a prominent outflow boundary emanating away from the system. The last-light visible low-level cloud motions gave the impression that Mindy was opening up into a trough, with southwesterly flow ahead and northeasterly flow immediately behind the estimated center. Indeed, a ASCAT-A pass valid at 0002 UTC suggested that Mindy no longer has closed cyclonic flow on its northeast side, with a lack of easterly wind vectors in this sector of the system. In addition, a rapidly advancing frontal boundary has already moved off of the Carolina coast and will soon be merging with the leftover vort-max associated with Mindy. The accumulation of all this evidence indicates that Mindy no longer meets the definition of a tropical cyclone, and this will be the final advisory on the system.

The post-tropical remains of Mindy have continued to accelerate to the east-northeast this evening at 070/25 kt, moving almost as quickly as the the maximum sustained winds, which is another reason why the circulation is likely no longer closed. This motion should continue for the next 12-24 hours with a gradual slowdown until what remains of the circulation becomes indistinguishable from the frontal boundary it is becoming embedded in.

The structure of Mindy this evening has become quite diffuse, with a linear band of convection mostly associated with a prominent outflow boundary emanating away from the system. The last-light visible low-level cloud motions gave the impression that Mindy was opening up into a trough, with southwesterly flow ahead and northeasterly flow immediately behind the estimated center. Indeed, a ASCAT-A pass valid at 0002 UTC suggested that Mindy no longer has closed cyclonic flow on its northeast side, with a lack of easterly wind vectors in this sector of the system. In addition, a rapidly advancing frontal boundary has already moved off of the Carolina coast and will soon be merging with the leftover vort-max associated with Mindy. The accumulation of all this evidence indicates that Mindy no longer meets the definition of a tropical cyclone, and this will be the final advisory on the system.

The post-tropical remains of Mindy have continued to accelerate to the east-northeast this evening at 070/25 kt, moving almost as quickly as the the maximum sustained winds, which is another reason why the circulation is likely no longer closed. This motion should continue for the next 12-24 hours with a gradual slowdown until what remains of the circulation becomes indistinguishable from the frontal boundary it is becoming embedded in.

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