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Post-Tropical Cyclone Vicky

UPDATED
500 PM AST Thu Sep 17 2020
LOCATION
1050 MI WNW OF THE CABO VERDE ISLANDS
WINDS
30 MPH
PRESSURE
1008 MB
MOVING
WSW AT 12 MPH

VICKY BECOMES A REMNANT LOW

ALERTS
HAZARDS
SUMMARY
DISCUSSION

There are no coastal watches or warnings in effect.


None.


At 500 PM AST (2100 UTC), the center of PostTropical Cyclone Vicky was located near latitude 21.1 North, longitude 39.1 West. The posttropical cyclone is moving toward the westsouthwest near 12 mph (19 km/h), and this general motion is expected through Friday.

Maximum sustained winds have decreased to near 30 mph (45 km/h) with higher gusts. Additional weakening is expected, and the remnant low is forecast to dissipate Friday night or early Saturday.

The estimated minimum central pressure is 1008 mb (29.77 inches).


There has not been any organized deep convection near the center of Vicky in more than 12 hours as very strong vertical wind shear continues to take a toll on the cyclone. Vicky has become a swirl of low clouds and no longer meets the definition of a tropical cyclone. Therefore, the system is being declared a remnant low and this will be the last NHC advisory on Vicky. The Dvorak CI-number from TAFB suggests that the intensity of the system has fallen to 25 kt, which is the basis for the advisory wind speed. Very strong vertical wind shear associated with outflow from Hurricane Teddy is expected to continue to cause the remnant low to weaken, and the system is expected to degenerate into a trough of low pressure in 24 to 36 hours. The official forecast follows suit and calls for dissipation by early Saturday.

Vicky is now moving west-southwestward or 250/10 kt. The remnant low should remain on a west-southwestward heading while it is steered by the low-level northeasterly trade wind flow over the next day or so. The latest NHC track forecast is near the various consensus aids and in the middle of the tightly clustered dynamical models. This is the last NHC advisory on Vicky. Additional information on the remnant low can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php

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Sources include nearest National Weather Service office, National Hurricane Center, and the Florida Public Radio Emergency Network (@FloridaStorms).
Sources include nearby emergency management agencies, FEMA, and your local NPR affiliate. 
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