187  
WTNT42 KNHC 272034  
TCDAT2  
 
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  
 
 
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