Tropical Depression Twenty-One Forecast Discussion Number 3

By | October 24, 2023

WTNT41 KNHC 240842

Tropical Depression Twenty-One Discussion Number   3
NWS National Hurricane Center Miami FL       AL212023
500 AM EDT Tue Oct 24 2023

Proxy-vis satellite imagery indicates that the center of Tropical 
Depression Twenty-One has moved inland over Nicaragua tonight. This 
was confirmed from both ASCAT B and -C scatterometer passes that 
depicted there was no circulation offshore. Infrared imagery 
indicates that deep convection remains just offshore. The initial 
intensity is held at 25 kt for this advisory.

Since the center of the circulation has moved inland, the depression 
should become a remnant low or dissipate later today. Heavy 
rainfall with flash and urban flooding remain the primary impacts 
even as the system dissipates. The estimated motion is around 310/5 
kt. The depression and then the remnants, are forecast to continue 
northwestward, and then generally head westward toward the eastern 
Pacific after that.


1. Heavy rains from the depression will continue to impact portions 
of Nicaragua through Tuesday night with heavy rainfall spreading 
into Honduras during the day on Tuesday. This rainfall is likely to 
produce flash and urban flooding, along with possible mudslides in 
areas of higher terrain.


INIT  24/0900Z 13.1N  84.0W   25 KT  30 MPH
 12H  24/1800Z 13.2N  84.8W   25 KT  30 MPH...POST-TROP/REMNT LOW
 24H  25/0600Z...DISSIPATED

Forecaster Kelly

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