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NHC

Post-Tropical Cyclone Hernan Forecast Advisory

Advisory Number: 12
2100 UTC SAT AUG 15 2026

000
WTPZ23 KNHC 152042
TCMEP3

POST-TROPICAL CYCLONE HERNAN FORECAST/ADVISORY NUMBER 12
NWS NATIONAL HURRICANE CENTER MIAMI FL EP082026
2100 UTC SAT AUG 15 2026

POST-TROPICAL CYCLONE CENTER LOCATED NEAR 15.8N 135.9W AT 15/2100Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 10 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1009 MB
MAX SUSTAINED WINDS 25 KT WITH GUSTS TO 35 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 15.8N 135.9W AT 15/2100Z
AT 15/1800Z CENTER WAS LOCATED NEAR 15.8N 135.4W

FORECAST VALID 16/0600Z 15.9N 137.5W...POST-TROP/REMNT LOW
MAX WIND 25 KT...GUSTS 35 KT.

FORECAST VALID 16/1800Z 16.1N 139.8W...POST-TROP/REMNT LOW
MAX WIND 20 KT...GUSTS 30 KT.

FORECAST VALID 17/0600Z 16.4N 141.7W...POST-TROP/REMNT LOW
MAX WIND 20 KT...GUSTS 30 KT.

FORECAST VALID 17/1800Z 16.5N 143.7W...POST-TROP/REMNT LOW
MAX WIND 20 KT...GUSTS 30 KT.

FORECAST VALID 18/0600Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.8N 135.9W

THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON HERNAN. FOR ADDITIONAL INFORMATION ON THE REMNANT LOW
PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER
SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO HEADER FZPN01 KWBC.


$$
FORECASTER KATZ/BERG

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