WTPZ21 KNHC 110239 RRA

TCMEP1



TROPICAL STORM SERGIO FORECAST/ADVISORY NUMBER  47

NWS NATIONAL HURRICANE CENTER MIAMI FL       EP212018

0300 UTC THU OCT 11 2018



CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...



THE GOVERNMENT OF MEXICO HAS UPGRADED THE TROPICAL STORM WATCH

ALONG THE WEST COAST OF THE BAJA CALIFORNIA PENINSULA FROM PUNTA

EUGENIA TO CABO SAN LAZARO TO A TROPICAL STORM WARNING.



SUMMARY OF WATCHES AND WARNINGS IN EFFECT...



A TROPICAL STORM WARNING IS IN EFFECT FOR...

. WEST COAST OF THE BAJA CALIFORNIA PENINSULA FROM PUNTA EUGENIA TO

CABO SAN LAZARO



A TROPICAL STORM WATCH IS IN EFFECT FOR...

... EAST COAST OF THE BAJA CALIFORNIA PENINSULA FROM BAHIA SAN JUAN

BAUTISTA TO SAN EVARISTO



A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE

EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.



A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE

POSSIBLE WITHIN THE WATCH AREA.



INTERESTS ELSEWHERE IN THE NORTHERN AND CENTRAL BAJA CALIFORNIA

PENINSULA AND NORTHWESTERN SONORA SHOULD MONITOR THE PROGRESS OF

SERGIO.



TROPICAL STORM CENTER LOCATED NEAR 20.0N 121.5W AT 11/0300Z

POSITION ACCURATE WITHIN  20 NM



PRESENT MOVEMENT TOWARD THE NORTHEAST OR  50 DEGREES AT  14 KT



ESTIMATED MINIMUM CENTRAL PRESSURE  992 MB

MAX SUSTAINED WINDS  55 KT WITH GUSTS TO  65 KT.

50 KT....... 70NE  70SE  60SW  70NW.

34 KT.......110NE 120SE 110SW 110NW.

12 FT SEAS..180NE 240SE 270SW 180NW.

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 20.0N 121.5W AT 11/0300Z

AT 11/0000Z CENTER WAS LOCATED NEAR 19.6N 122.0W