Last Updated: Friday, September 18, 2020 @ 12:00:01 AM
Storm Origin: Atlantic
Wind Speed: 29 mph
Pressure: 1008 mb
Movement: 12 mph WSW
Latitude: 21.1 N
Longitude: 39.1 W
TROPICAL CYCLONE VICKY ADVISORY / FORECAST
ADVISORY from National Hurricane Center:
...VICKY BECOMES A REMNANT LOW...
...THIS IS THE LAST ADVISORY...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
ABOUT 1050 MI...1690 KM WNW OF THE CABO VERDE ISLANDS
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...WSW OR 250 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES
WATCHES AND WARNINGS
There are no coastal watches or warnings in effect.
DISCUSSION AND OUTLOOK
At 500 PM AST (2100 UTC), the center of Post-Tropical Cyclone Vicky
was located near latitude 21.1 North, longitude 39.1 West. The
post-tropical cyclone is moving toward the west-southwest 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).
HAZARDS AFFECTING LAND
This is the last public advisory issued by the National Hurricane
Center on Vicky. Additional information on this system can be found
in High Seas Forecasts issued by the National Weather Service,
under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at
WTNT41 KNHC 172039
Post-Tropical Cyclone Vicky Discussion Number 15
NWS National Hurricane Center Miami FL AL212020
500 PM AST Thu Sep 17 2020
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
FORECAST POSITIONS AND MAX WINDS
INIT 17/2100Z 21.1N 39.1W 25 KT 30 MPH...POST-TROPICAL
12H 18/0600Z 20.6N 40.4W 25 KT 30 MPH...POST-TROP/REMNT LOW
24H 18/1800Z 19.9N 42.1W 20 KT 25 MPH...POST-TROP/REMNT LOW