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Remnants of Peter Forecast Discussion


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000
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