Official Discussion issued by the National Hurricane Center

Bertha (AL022020) DATA RELEASED: 5/27/2020 9:00:00 PM UTC

Copy of official data

Tropical Depression Bertha Discussion Number   3
NWS National Hurricane Center Miami FL       AL022020
500 PM EDT Wed May 27 2020

Surface observations and WSR-88D radar data indicate that the 
center of Bertha continues to move farther inland across central 
and northern South Carolina.  Based on surface observations, the 
maximum sustained winds have decreased to near 25 kt, with these 
winds mainly along the coastal areas to the east of the center.  
Additional weakening is expected as the system moves farther 
inland, with Bertha forecast to decay to a remnant low pressure 
area on Thursday, followed by dissipation on Thursday night.

The initial motion is 340/13.  The cyclone is located between the 
subtropical ridge to the east and a large deep-layer low pressure 
area over the lower Mississippi River valley.  These features 
should steer the system and its associated rainfall generally 
northward during the next day or so, followed by a turn toward the 
north-northeast before dissipation between 24-36 h.  The new 
forecast track is nudged a little to the west of the previous track 
based mainly on the initial location and motion.

This is the last advisory on Bertha issued by the National 
Hurricane Center.  Future information on this system can be found in 
Public Advisories issued by the Weather Prediction Center beginning 
at 11 PM EDT, under AWIPS header TCPAT2, WMO header WTNT32 KWNH, 
and on the web at http://www.wpc.ncep.noaa.gov. 

Key Messages:

1. Bertha may produce life-threatening flash flooding across
portions of northeastern South Carolina into west central to
far southeast North Carolina and Southwest Virginia.  Ongoing river
flooding will be aggravated and recessions prolonged in the region.


FORECAST POSITIONS AND MAX WINDS

INIT  27/2100Z 34.4N  80.3W   25 KT  30 MPH...INLAND
12H  28/0600Z 37.0N  80.7W   25 KT  30 MPH...INLAND
24H  28/1800Z 41.7N  79.7W   20 KT  25 MPH...POST-TROP/REMNT LOW
36H  29/0600Z...DISSIPATED

$$
Forecaster Beven