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Remnants of Peter Forecast Discussion Number 18
2021-09-23 04:37:12| National Hurricane Center (Atlantic)
Issued at 1100 PM AST Wed Sep 22 2021 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
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