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Post-Tropical Cyclone Iselle Discussion Number 18
NWS National Hurricane Center Miami FL EP142020
300 PM MDT Sun Aug 30 2020
Iselle hasn't produced organized deep convection for about the past
day, so it no longer meets the definition of a tropical cyclone.
Thus, it is now a post-tropical remnant low, and this is the last
advisory. The initial wind speed is set to 25 kt, which matches a
recent ASCAT-B pass. Models are in good agreement on the low
gradually turning from its current northward heading to north-
northwest tomorrow and slowly weakening due to a poor environment.
The low is expected to degenerate into a trough of low pressure on
Tuesday, and no changes were made from the previous forecast.
FORECAST POSITIONS AND MAX WINDS
INIT 30/2100Z 23.7N 113.3W 25 KT 30 MPH...POST-TROPICAL
12H 31/0600Z 24.7N 113.4W 20 KT 25 MPH...POST-TROP/REMNT LOW
24H 31/1800Z 25.8N 113.8W 20 KT 25 MPH...POST-TROP/REMNT LOW