Tropical Depression Debby Discussion Number  26
NWS National Hurricane Center Miami FL       AL042024
500 PM EDT Thu Aug 08 2024

Debby continues to move farther inland and the center is now
located over south-central North Carolina.  The storm continues to
produce heavy rains across portions of the Carolinas and Virginia,
with the major flood threat continuing in those areas. Surface
observations indicate that winds along the North Carolina coast and
offshore have decreased, and based on that data, the initial
intensity is lowered to 30 kt, making Debby a tropical depression.  
Although the sustained winds have decreased, there could still be 
some gusts to tropical-storm-force along portions of the North 
Carolina coast for a few more hours.

The system is moving north-northwestward at 9 kt.  A turn to the
north or north-northeast and a significant increase in forward
speed are expected.  This motion will take Debby, or its
remnants, across the Mid-Atlantic and Northeast States during the
next day or so.  Debby is likely to complete extratropical
transition tonight or on Friday and dissipate in a couple of days.

This is the last tropical cyclone discussion issued by the
National Hurricane Center on Debby.  Future information on
this system can be found in discussions issued by the Weather
Prediction Center beginning at 1100 PM EDT, under AWIPS header
TCDAT4, WMO header WTNT44 KWNH, and on the web at
www.hurricanes.gov.

Rainfall forecasts for the United States can always be found at
https://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
and outlooks of flash flood risks can be found at
https://www.wpc.ncep.noaa.gov/qpf/excessive_rainfall_outlook_ero.php

Key Messages:

1. Heavy rainfall across portions of the Carolinas is expected to
persist through today along with areas of considerable flooding.
Heavy rainfall will also result in considerable to locally
catastrophic flooding impacts across portions of the Mid-Atlantic
States and Northeast through Saturday morning.


FORECAST POSITIONS AND MAX WINDS

INIT  08/2100Z 35.1N  80.2W   30 KT  35 MPH...INLAND
12H  09/0600Z 37.1N  79.5W   30 KT  35 MPH...INLAND
24H  09/1800Z 41.2N  76.7W   30 KT  35 MPH...POST-TROP/EXTRATROP
36H  10/0600Z 45.7N  71.1W   30 KT  35 MPH...POST-TROP/EXTRATROP
48H  10/1800Z 48.9N  62.8W   30 KT  35 MPH...POST-TROP/EXTRATROP
60H  11/0600Z...DISSIPATED

$$
Forecaster Cangialosi