TCMEP4
TROPICAL STORM NORBERT FORECAST/ADVISORY NUMBER 14
NWS NATIONAL HURRICANE CENTER MIAMI FL EP142026
0300 UTC SUN SEP 13 2026
TROPICAL STORM CENTER LOCATED NEAR 17.9N 130.5W AT 13/0300Z
POSITION ACCURATE WITHIN 30 NM
PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 10 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1002 MB
MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT.
34 KT....... 80NE 20SE 30SW 90NW.
4 M SEAS....135NE 45SE 75SW 135NW.
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 17.9N 130.5W AT 13/0300Z
AT 13/0000Z CENTER WAS LOCATED NEAR 17.8N 130.0W
FORECAST VALID 13/1200Z 18.3N 132.0W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 70NE 20SE 30SW 70NW.
FORECAST VALID 14/0000Z 18.7N 134.2W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 60NE 10SE 20SW 50NW.
FORECAST VALID 14/1200Z 19.1N 136.6W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 60NE 0SE 0SW 50NW.
FORECAST VALID 15/0000Z 19.3N 139.4W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 30NE 0SE 0SW 20NW.
FORECAST VALID 15/1200Z 19.4N 142.0W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 30NE 0SE 0SW 0NW.
FORECAST VALID 16/0000Z 19.3N 144.7W...POST-TROP/REMNT LOW
MAX WIND 30 KT...GUSTS 40 KT.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM
ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
OUTLOOK VALID 17/0000Z...DISSIPATED
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.9N 130.5W
NEXT ADVISORY AT 13/0900Z
$$
FORECASTER PIERCE/GIBBS=
HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC SAT SEP 12 2026
CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT
TO 53N172E TO 50N180W TO 30N180W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1800 UTC SEP 12.
24 HOUR FORECAST VALID 1800 UTC SEP 13.
48 HOUR FORECAST VALID 1800 UTC SEP 14.
.WARNINGS.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 35N173W 996 MB MOVING SW 10 KT.
WITHIN 240 NM N SEMICIRCLE AND E QUADRANT WINDS 30 TO 45 KT. SEAS
4 TO 7 M. ELSEWHERE S OF 41N W OF 165W WINDS 25 TO 35 KT. SEAS
2.5 TO 5 M.
.24 HOUR FORECAST LOW 33N179W 1003 MB. WITHIN 240 NM E QUADRANT
WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE S OF 46N W OF 164W
WINDS TO 25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 32N178W 1004 MB. S OF 45N W OF 167W WINDS
20 TO 30 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH MAIN CENTER NEAR 31N150W 1013 MB MOVING N 05
KT. FROM 35N TO 44N BETWEEN 138W AND 157W WINDS 20 TO 30 KT. SEAS
TO 3 M.
.24 HOUR FORECAST LOW 31N152W 1014 MB. FROM 36N TO 42N BETWEEN
136W AND 158W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW DISSIPATED. FROM 36N TO 41N BETWEEN 141W
AND 157W WINDS TO 25 KT. SEAS TO 2.5 M.
.LOW 45N129W 1011 MB MOVING E 15 KT. FROM 40N TO 50N BETWEEN 128W
AND 140W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED. FROM 39N TO 54N BETWEEN 125W
AND 135W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
.LOW 60N150W 1019 MB MOVING E 15 KT. FROM 55N TO 60N BETWEEN 146W
AND 155W WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.
.N OF 60N W OF ALASKA COAST SW WINDS TO 25 KT. SEAS TO 3 M.
ELSEWHERE NW OF A LINE FROM 52N172E TO 61N164W WINDS LESS THAN 25
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.EXCEPT WHERE DESCRIBED ABOVE S OF 52N W OF 157W WINDS LESS THAN
25 KT. SEAS TO 3 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.24 HOUR FORECAST FROM 30N TO 37N BETWEEN 118W AND 127W N TO NW
WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 30N TO 43N BETWEEN 117W AND 129W N TO NW
WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST NEW LOW 51N175W 1012 MB. FROM 46N TO 55N
BETWEEN 166W AND 175W WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 57N169W 1005
MB. FROM 44N TO 61N BETWEEN 160W AND 171W AND WITHIN 360 NM N
QUADRANT WINDS 20 TO 30 KT. SEAS TO 3.5 M. ALSO FROM 45N TO 54N W
OF 171W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 58N
BETWEEN 154W AND 180W.
.24 HOUR FORECAST DENSE FOG BETWEEN 58N AND A LINE FROM 41N180W
TO 52N164W TO 55N149W.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 60N BETWEEN 161W AND
174W.
.FORECASTER JOSEPH. OCEAN PREDICTION CENTER.
NWS NATIONAL HURRICANE CENTER MIAMI FL
E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W
SYNOPSIS VALID 1800 UTC SAT SEP 12.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 13.
48 HOUR FORECAST VALID 1800 UTC MON SEP 14.
.WARNINGS.
...TROPICAL STORM WARNING...
.TROPICAL STORM NORBERT NEAR 17.6N 129.6W 1000 MB AT 2100 UTC SEP
12 MOVING WNW OR 285 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NE
QUADRANT...20
NM SE QUADRANT...30 NM SW QUADRANT...AND 90 NM NW QUADRANT. SEAS
4 M
OR GREATER WITHIN 150 NM N SEMICIRCLE...45 NM SE QUADRANT AND 90
NM
SW QUADRANT WITH SEAS TO 6.0 M. ELSEWHERE FROM 16N TO 21N BETWEEN
126W AND 131W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M FROM 14N TO
23N
BETWEEN 125W AND 133W.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 18.5N 133.2W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 4 M
OR GREATER WITHIN 120 NM N AND 75 NM S SEMICIRCLES WITH SEAS TO
5.5
M. ELSEWHERE FROM 17N TO 23N BETWEEN 130W AND 134W WINDS 20 TO 33
KT. SEAS 2.5 TO 4.0 M FROM 15N TO 24N BETWEEN 128W AND 136W.
.48 HOUR FORECAST TROPICAL STORM NORBERT NEAR 19.1N 138.0W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM S SEMICIRCLE...60 NM NE QUADRANT AND 40 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM N AND 60 NM S
SEMICIRCLES WITH SEAS TO 4.5 M. ELSEWHERE FROM 18N TO 22N BETWEEN
133W AND 139W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M FROM 17N TO
25N BETWEEN 132W AND 140W.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.
...GALE WARNING...
.LOW PRESSURE NEAR 17N114W 1006 MB. WITHIN 90 NM E SEMICIRCLE OF
CENTER WINDS 20 TO 25 KT...WITH HIGHER GUSTS. SEAS 2.5 M.
.24 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
17N116W 1005 MB. WITHIN 120 NM N SEMICIRCLE AND 150 NM SE
QUADRANT OF CENTER WINDS 20 TO 30 KT...WITH HIGHER GUSTS. SEAS
2.5 TO 3.0 M.
.48 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
17N119W 1004 MB. WITHIN 60 NM N SEMICIRCLE AND 30 NM SE QUADRANT
OF CENTER WINDS 30 TO 35 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN
150
NM N SEMICIRCLE AND 180 NM SE QUADRANT OF CENTER WINDS 20 TO 30
KT.
SEAS 2.5 TO 3.0 M.
.SYNOPSIS AND FORECAST.
.FROM 10N TO 11N E OF 90W...INCLUDING THE GULF OF PAPAGAYO...NE
TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.S OF 00N BETWEEN 114W AND 120W WINDS 20 KT OR LESS. SEAS 2.5 M
PRIMARILY IN SW SWELL.
.24 HOUR FORECAST S OF 00S BETWEEN 117W AND 120W WINDS 20 KT OR
LESS. SEAS 2.5 M PRIMARILY IN SW SWELL.
.48 HOUR FORECAST S OF 00S BETWEEN 100W AND 116W WINDS 20 KT OR
LESS. SEAS 2.5 M PRIMARILY IN SW SWELL.
.36 HOUR FORECAST N OF 29N BETWEEN 118W AND 122W NW WINDS 20 TO
25 KT. SEAS TO 2.5 M.
.42 HOUR FORECAST N OF 29N BETWEEN 118W AND 123W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST N OF 28N BETWEEN 118W AND 123W WINDS 20 KT OR
LESS. SEAS 2.5 M IN N TO NE SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 2100 UTC SAT SEP 12...
.T.S. NORBERT...NUMEROUS MODERATE TO SCATTERED STRONG WITHIN 120
NM NW SEMICIRCLE OF CENTER.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N85W TO 05N100W TO 16N115W TO
11N110W...AND FROM 12N130W TO BEYOND 13N140W. IN ADDITION TO THE
CONVECTION ASSOCIATED WITH T.S. NORBERT AND INVEST
EP97...SCATTERED
MODERATE CONVECTION IS FOUND FROM 04N TO 12N BETWEEN 83W AND 98W,
FROM 07N TO 11N BETWEEN 105W AND 112W, AND FROM 07N TO 14N
BETWEEN 117W AND 125W. SCATTERED MODERATE TO ISOLATED STRONG IS
NOTED
FROM 04N TO 10N W OF 130W.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1800 UTC SEP 12 2026.
24 HOUR FORECAST VALID 1800 UTC SEP 13 2026.
48 HOUR FORECAST VALID 1800 UTC SEP 14 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 30N168W 27N171W THENCE TROUGH 23N175W. FRONT AND TROUGH
NEARLY STATIONARY.
.24 HOUR FORECAST FRONT AND TROUGH MERGED WITH FRONT DESCRIBED
BELOW.
.FRONT 30N172W 26N175W 24N180W MOVING E SLOWLY.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N173W 27N175W
26N180W.
.48 HOUR FORECAST TROUGH 30N174W 24N180W.
.TROUGH 30N151W 26N156W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 30N152W 27N153W.
.48 HOUR FORECAST TROUGH MOVED N OF AREA.
.LOW NEAR 12N147W 1010 MB. TROUGH FROM 25N143W TO 20N146W TO LOW.
TROUGH MOVING W SLOWLY AND LOW NEARLY STATIONARY. ISOLATED
MODERATE TSTMS FROM 19N TO 14N BETWEEN 148W AND 145W.
.24 HOUR FORECAST LOW NEAR 12N147W 1009 MB. TROUGH FROM 28N143W
TO 21N149W TO 16N150W TO LOW.
.48 HOUR FORECAST LOW NEAR 12N149W 1009 MB. TROUGH FROM 30N148W
TO 21N150W TO LOW.
.TROUGH 20N162W 15N163W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.
.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER REMAINDER OF
FORECAST AREA.
.MONSOON TROUGH 13N140W 13N146W 10N155W...AND 09N162W 07N168W
07N180W.
ISOLATED MODERATE TSTMS FROM 14N TO 02N BETWEEN 180W AND 140W.
$$
.FORECASTER TROTTER. HONOLULU HI.=