640 WTNT23 KNHC 071433 TCMAT3 POTENTIAL TROPICAL CYCLONE EIGHT FORECAST/ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018 1500 UTC FRI SEP 07 2018 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF THE CABO VERDE ISLANDS HAS ISSUED A TROPICAL STORM WARNING FOR THE SOUTHERN ISLANDS OF SANTIAGO...FOGO AND BRAVA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * SANTIAGO * FOGO * BRAVA A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. POTENTIAL TROP CYCLONE CENTER LOCATED NEAR 13.1N 17.8W AT 07/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT 9 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1004 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 13.1N 17.8W AT 07/1500Z AT 07/1200Z CENTER WAS LOCATED NEAR 13.0N 17.5W FORECAST VALID 08/0000Z 13.3N 18.6W...TROPICAL STORM MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 20NE 0SE 0SW 30NW. FORECAST VALID 08/1200Z 13.8N 20.3W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 30NE 0SE 0SW 30NW. FORECAST VALID 09/0000Z 14.2N 22.6W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 30NE 20SE 0SW 30NW. FORECAST VALID 09/1200Z 14.6N 25.4W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 20NE 0SE 0SW 20NW. 34 KT... 50NE 20SE 0SW 40NW. FORECAST VALID 10/1200Z 16.0N 32.0W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 20NE 0SE 0SW 20NW. 34 KT... 80NE 30SE 30SW 70NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 11/1200Z 18.0N 37.0W MAX WIND 60 KT...GUSTS 75 KT. OUTLOOK VALID 12/1200Z 20.0N 41.0W MAX WIND 55 KT...GUSTS 65 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.1N 17.8W NEXT ADVISORY AT 07/2100Z $$ FORECASTER BRENNAN