630  
WTNT23 KNHC 280838  
TCMAT3  
 
POTENTIAL TROPICAL CYCLONE EIGHTEEN FORECAST/ADVISORY NUMBER 3  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL182017  
0900 UTC SAT OCT 28 2017  
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...  
 
NONE.  
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...  
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...  
* CUBAN PROVINCES OF ISLA DE LA JUVENTUD... LA HABANA... CIUDAD DE  
LA HABANA... MATANZAS... CIENFUEGOS... AND VILLA CLARA  
* NORTHWESTERN BAHAMAS  
 
A TROPICAL STORM WATCH IS IN EFFECT FOR...  
* CENTRAL BAHAMAS  
 
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE  
EXPECTED SOMEWHERE WITHIN THE WARNING AREA... IN THIS CASE WITHIN  
THE NEXT 24 HOURS.  
 
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE  
POSSIBLE WITHIN THE WATCH AREA... IN THIS CASE WITHIN 36 HOURS.  
 
INTERESTS IN THE CAYMAN ISLANDS... SOUTH FLORIDA... AND THE FLORIDA  
KEYS SHOULD MONITOR THE PROGRESS OF THIS SYSTEM.  
 
POTENTIAL TROP CYCLONE CENTER LOCATED NEAR 19.6N 84.2W AT 28/0900Z  
POSITION ACCURATE WITHIN 50 NM  
 
PRESENT MOVEMENT TOWARD THE NORTH OR 10 DEGREES AT 9 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB  
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.  
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL  
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.  
 
REPEAT...CENTER LOCATED NEAR 19.6N 84.2W AT 28/0900Z  
AT 28/0600Z CENTER WAS LOCATED NEAR 18.9N 84.5W  
 
FORECAST VALID 28/1800Z 21.7N 82.9W  
MAX WIND 35 KT...GUSTS 45 KT.  
34 KT... 50NE 120SE 0SW 0NW.  
 
FORECAST VALID 29/0600Z 24.9N 80.1W  
MAX WIND 40 KT...GUSTS 50 KT.  
34 KT...120NE 120SE 50SW 0NW.  
 
FORECAST VALID 29/1800Z 28.7N 76.5W  
MAX WIND 45 KT...GUSTS 55 KT.  
34 KT...120NE 150SE 100SW 0NW.  
 
FORECAST VALID 30/0600Z 34.2N 71.0W...POST-TROP/EXTRATROP  
MAX WIND 50 KT...GUSTS 60 KT.  
50 KT... 50NE 60SE 0SW 0NW.  
34 KT...150NE 150SE 100SW 0NW.  
 
FORECAST VALID 31/0600Z...DISSIPATED  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.6N 84.2W  
 
NEXT ADVISORY AT 28/1500Z  
 

 
FORECASTER BERG  
 
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