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Tropical Depression Iselle Discussion Number 16
NWS National Hurricane Center Miami FL EP142020
300 AM MDT Sun Aug 30 2020
Iselle has produced very little deep convection since around 00Z.
Earlier partial ASCAT data indicated that the maximum winds have
decreased to 30 kt, which is not surprising given Iselle's lack of
organization. Iselle is moving into a drier and more stable
environment and over progressively cooler SSTs. While some slight
redevelopment of convection is possible during the next few hours,
it is unlikely to be very well organized and Iselle is forecast
become post-tropical later today. The remnants of Iselle will then
continue to gradually spin down for another day or two until it
dissipates entirely in a couple of days.
The cyclone has moved generally north-northeastward to northward
during the pas few hours and is slowing down. The guidance is in
good agreement that a northward to north-northwestward motion is
likely until Iselle dissipates. No changes of note were made to the
NHC track or intensity forecasts.
FORECAST POSITIONS AND MAX WINDS
INIT 30/0900Z 22.3N 114.0W 30 KT 35 MPH
12H 30/1800Z 23.3N 114.1W 30 KT 35 MPH...POST-TROP/REMNT LOW
24H 31/0600Z 24.2N 114.2W 25 KT 30 MPH...POST-TROP/REMNT LOW
36H 31/1800Z 24.9N 114.4W 20 KT 25 MPH...POST-TROP/REMNT LOW
48H 01/0600Z 26.0N 115.0W 15 KT 15 MPH...POST-TROP/REMNT LOW
60H 01/1800Z...DISSIPATED
$$
Forecaster Zelinsky
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