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Tropical Storm NORMA (Text)


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TROPICAL STORM NORMA FORECAST/ADVISORY NUMBER  13
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP172017
1500 UTC SUN SEP 17 2017

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

THE GOVERNMENT OF MEXICO HAS ISSUED A TROPICAL STORM WATCH FOR LOS
BARRILES TO TODOS SANTOS AND HAS DISCONTINUED THE TROPICAL STORM
WATCH FOR TODOS SANTOS TO CABO SAN LAZARO.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* LOS BARRILES TO TODOS SANTOS

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA... IN THIS CASE WITHIN 36 HOURS.

TROPICAL STORM CENTER LOCATED NEAR 20.9N 110.5W AT 17/1500Z
POSITION ACCURATE WITHIN  15 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 340 DEGREES AT   4 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB
MAX SUSTAINED WINDS  40 KT WITH GUSTS TO  50 KT.
34 KT....... 80NE  60SE  70SW  80NW.
12 FT SEAS..120NE  90SE  60SW 120NW.
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 20.9N 110.5W AT 17/1500Z
AT 17/1200Z CENTER WAS LOCATED NEAR 20.7N 110.4W

FORECAST VALID 18/0000Z 21.4N 110.9W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 80NE  60SE  70SW  80NW.

FORECAST VALID 18/1200Z 21.7N 111.6W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 70NE  60SE  60SW  70NW.

FORECAST VALID 19/0000Z 22.0N 112.5W
MAX WIND  30 KT...GUSTS  40 KT.

FORECAST VALID 19/1200Z 22.2N 113.2W
MAX WIND  25 KT...GUSTS  35 KT.

FORECAST VALID 20/1200Z 22.8N 114.2W...POST-TROP/REMNT LOW
MAX WIND  25 KT...GUSTS  35 KT.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM
ON DAY 4 AND 150 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 21/1200Z 23.5N 114.5W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.

OUTLOOK VALID 22/1200Z 24.0N 114.0W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.9N 110.5W

NEXT ADVISORY AT 17/2100Z

$$
FORECASTER LANDSEA


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Page last modified: Tuesday, 12-Dec-2017 12:10:28 UTC