[Tropical] Tropical Cyclone Discussion

[EMWIN Server]

WTNT41 KNHC 230237
TCDAT1

Remnants Of Peter Discussion Number  18
NWS National Hurricane Center Miami FL       AL162021
1100 PM AST Wed Sep 22 2021

Although a low-level swirl can still be seen in infrared satellite
imagery, this feature has continued to lose definition.  A recently
arriving partial ASCAT-A overpass shows that the circulation has
become more elongated, and Peter lacks a well-defined center.  In
addition, the system has not produced any organized deep convection
in quite some time.  The cloudiness and convective activity that has
been occuring over the western Atlantic has been located along a
trough axis well northeast of the decaying circulation center.  As a
result, Peter no longer meets the definition of a tropical cyclone,
and this will be the final NHC advisory on this system.  The initial
intensity is set at 25 kt in accordance with the ASCAT data.  The
remnants of Peter are expected to remain within an area of strong
upper-level westerly winds, and further weakening should occur over
the next day or two.

The system has been moving slowly north-northwestward or 335/4 kt.
A weakness in the low-level ridge should allow the remnants to turn
northward tomorrow, and this general motion should continue through
the end of the week.

This is the last NHC advisory on this system. Additional information
on the remnants of Peter 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  23/0300Z 22.1N  67.0W   25 KT  30 MPH...REMNANTS
 12H  23/1200Z...DISSIPATED

$$
Forecaster Brown
This weather bulletin was brought to you by:
www.nashvilleweather.net