TCMEP4
TROPICAL STORM NORBERT FORECAST/ADVISORY NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL EP142026
0900 UTC FRI SEP 11 2026
TROPICAL STORM CENTER LOCATED NEAR 16.6N 123.3W AT 11/0900Z
POSITION ACCURATE WITHIN 40 NM
PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT 13 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 996 MB
MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT.
50 KT....... 30NE 0SE 0SW 20NW.
34 KT....... 70NE 0SE 0SW 50NW.
4 M SEAS....120NE 0SE 60SW 90NW.
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 16.6N 123.3W AT 11/0900Z
AT 11/0600Z CENTER WAS LOCATED NEAR 16.6N 122.7W
FORECAST VALID 11/1800Z 16.7N 125.0W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 30NE 0SE 0SW 20NW.
34 KT... 70NE 20SE 20SW 60NW.
FORECAST VALID 12/0600Z 17.0N 127.2W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 30NE 0SE 0SW 20NW.
34 KT... 80NE 30SE 20SW 60NW.
FORECAST VALID 12/1800Z 17.3N 129.2W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 10NE 0SE 0SW 0NW.
50 KT... 30NE 10SE 0SW 20NW.
34 KT... 80NE 30SE 20SW 60NW.
FORECAST VALID 13/0600Z 17.9N 131.1W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 10NE 0SE 0SW 0NW.
50 KT... 30NE 15SE 10SW 20NW.
34 KT... 80NE 40SE 30SW 60NW.
FORECAST VALID 13/1800Z 18.2N 133.1W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 20NE 0SE 0SW 15NW.
50 KT... 30NE 20SE 15SW 30NW.
34 KT... 80NE 40SE 30SW 60NW.
FORECAST VALID 14/0600Z 18.4N 135.1W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 20NE 0SE 0SW 15NW.
50 KT... 30NE 20SE 10SW 30NW.
34 KT... 70NE 40SE 30SW 60NW.
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 15/0600Z 18.4N 139.2W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 20NE 10SE 0SW 20NW.
34 KT... 60NE 30SE 20SW 50NW.
OUTLOOK VALID 16/0600Z 17.4N 143.4W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 20NE 10SE 0SW 20NW.
34 KT... 50NE 30SE 20SW 40NW.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.6N 123.3W
NEXT ADVISORY AT 11/1500Z
$$
FORECASTER ADAMS=
TCMCP4
POST-TROPICAL CYCLONE LOWELL FORECAST/ADVISORY NUMBER 60
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP122026
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0300 UTC FRI SEP 11 2026
POST-TROPICAL CYCLONE CENTER LOCATED NEAR 29.0N 169.9W AT 11/0300Z
POSITION ACCURATE WITHIN 30 NM
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 9 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB
MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT.
34 KT.......160NE 80SE 0SW 120NW.
4 M SEAS....540NE 240SE 270SW 420NW.
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 29.0N 169.9W AT 11/0300Z
AT 11/0000Z CENTER WAS LOCATED NEAR 29.0N 169.5W
FORECAST VALID 11/1200Z 29.2N 171.3W...POST-TROPICAL
MAX WIND 40 KT...GUSTS 50 KT.
34 KT...110NE 0SE 0SW 80NW.
FORECAST VALID 12/0000Z 30.6N 172.0W...POST-TROPICAL
MAX WIND 40 KT...GUSTS 50 KT.
34 KT...110NE 0SE 0SW 90NW.
FORECAST VALID 12/1200Z 32.7N 172.8W...POST-TROPICAL
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...120NE 100SE 0SW 100NW.
FORECAST VALID 13/0000Z 34.0N 175.0W...POST-TROPICAL
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 90NE 80SE 0SW 80NW.
FORECAST VALID 13/1200Z 33.6N 176.7W...POST-TROPICAL
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 50NE 0SE 0SW 50NW.
FORECAST VALID 14/0000Z 32.9N 177.0W...POST-TROP/REMNT LOW
MAX WIND 30 KT...GUSTS 40 KT.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
OUTLOOK VALID 15/0000Z 31.5N 176.6W...POST-TROP/REMNT LOW
MAX WIND 25 KT...GUSTS 35 KT.
OUTLOOK VALID 16/0000Z...DISSIPATED
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 29.0N 169.9W
THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM. FOR ADDITIONAL INFORMATION ON THE
POST-TROPICAL CYCLONE PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE
NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO
HEADER FZPN01 KWBC.
$$
FORECASTER PAPIN
HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC FRI SEP 11 2026
CCODE/2:31:12:11:00/AOW+POR+AOE/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 0000 UTC SEP 11.
24 HOUR FORECAST VALID 0000 UTC SEP 12.
48 HOUR FORECAST VALID 0000 UTC SEP 13.
.WARNINGS.
...TROPICAL STORM WARNING...
.SEE HFO PORTION IN HSFEPI FOR MORE INFORMATION ABOUT TROPICAL
STORM LOWELL.
.TROPICAL STORM LOWELL NEAR 29.0N 169.9W 995 MB AT 0300 UTC
SEP 11 MOVING W OR 270 DEG AT 09 KT. MAXIMUM SUSTAINED WINDS
45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM
NE...80 NM SE...AND 120 NM NW QUADRANTS. SEAS 4 M OR GREATER
WITHIN 510 NM NE...240 NM SE...270 NM SW...AND 420 NM NW
QUADRANTS WITH SEAS TO 6.5 M.
.24 HOUR FORECAST POST-TROPICAL CYCLONE LOWELL NEAR
30.6N172W 1001 MB. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50
KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM AND 90 NM NW
QUADRANTS. SEAS 4 M OR GREATER WITHIN 180 NM N AND NE
SEMICIRCLES WITH SEAS TO 5.5 M.
.48 HOUR FORECAST POST-TROPICAL CYCLONE LOWELL NEAR
34N175W 998 MB. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
TROPICAL STORM FORCE WINDS WITHIN 90 NM NE...80 NM SE AND
NW QUADRANTS. SEAS 4 M OR GREATER WITHIN 240 NM N AND 120
NM S SEMICIRCLES WITH SEAS TO 5.5 M.
.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 60N178E 1002 MB MOVING NE 15 KT. W AND NW OF A LINE
FROM 53N177W TO 65N163W WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
ELSEWHERE N OF 51N W OF 161W WINDS TO 25 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW DISSIPATED. N OF 61N W OF ALASKA WINDS
TO 25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST N OF 61N BETWEEN 161W AND 171W WINDS TO
25 KT. SEAS TO 2.5 M.
.SYNOPSIS AND FORECAST.
.FROM 30N TO 40N BETWEEN 140W AND 158W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.
.24 HOUR FORECAST NEW LOW TO FORM NEAR 30N152W 1013 MB.
WITHIN 540 NM N AND NW QUADRANTS WINDS 20 TO 30 KT. SEAS
TO 3 M.
.48 HOUR FORECAST LOW MOVED S OF AREA. FROM 33N TO 41N
BETWEEN 141W AND 154W WINDS TO 25 KT. SEAS TO 2.5 M.
.LOW 55N135W 1018 MB MOVING SE 30 KT. FROM 40N TO 51N BETWEEN
124W AND 140W...AND N OF 53N BETWEEN 140W AND 152W WINDS 20
TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 48N130W 1013 MB. WITHIN 420 NM W AND NW
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 45N126W 1012 MB. WITHIN 420 NM W AND SW
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 31N TO 42N BETWEEN 117W AND 126W NW
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 31N TO 39N BETWEEN 118W AND 125W NW
WINDS TO 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 61N
BETWEEN 160W AND 178W.
.24 HOUR FORECAST DENSE FOG FROM 47N TO 60N W OF 161W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 56N W OF 159W.
.FORECASTER MILLS. 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 0000 UTC FRI SEP 11.
24 HOUR FORECAST VALID 0000 UTC SAT SEP 12.
48 HOUR FORECAST VALID 0000 UTC SUN SEP 13.
.WARNINGS.
...HURRICANE WARNING...
.TROPICAL STORM NORBERT NEAR 16.4N 121.9W 1000 MB AT 0300 UTC
SEP 11 MOVING W OR 270 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 45
KT GUSTS 55 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 0 NM S SEMICIRCLE...120 NM NE QUADRANT AND 90
NM NW QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 19N120W TO
20N122W TO 19N123W TO 17N124W TO 16N123W TO 16N119W TO 19N120W
WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN
19N117W TO 20N120W TO 19N123W TO 16N123W TO 16N121W TO 16N118W TO
19N117W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 16.6N 126.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...30 NM SE QUADRANT...20 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM N AND 90 NM S SEMICIRCLES WITH SEAS TO 5.5 M. ELSEWHERE WITHIN
20N124W TO 20N127W TO 19N128W TO 17N128W TO 16N126W TO 18N124W
TO 20N124W WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF
AREA WITHIN 21N124W TO 20N129W TO 16N129W TO 14N126W TO 18N123W
TO 21N124W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE NORBERT NEAR 17.4N 129.9W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM N AND 90 NM S SEMICIRCLES WITH SEAS TO 6.0 M. ELSEWHERE WITHIN
20N127W TO 21N129W TO 21N130W TO 20N132W TO 17N130W TO 20N127W
WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN
22N128W TO 23N132W TO 20N134W TO 17N134W TO 15N131W TO 18N127W TO
22N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.
.SYNOPSIS AND FORECAST.
.WITHIN 11N86W TO 12N87W TO 11N89W TO 10N89W TO 10N88W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...E WINDS 20 TO 30
KT. SEAS 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO 15N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...NW TO N WINDS 20
TO 30 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 01S94W TO 02N101W TO 02N112W TO 00N125W TO 03.4S120W TO
03.4S94W TO 01S94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE
SWELL.
.24 HOUR FORECAST WITHIN 00N104W TO 01N112W TO 00N120W TO
03.4S120W TO 03.4S97W TO 00N104W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN SE SWELL.
.48 HOUR FORECAST WITHIN 01S108W TO 02N116W TO 01N126W TO
00N127W TO 03.4S120W TO 03.4S93W TO 01S108W...EXCEPT LEE OF
GALAPAGOS ISLANDS...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE
TO S SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0300 UTC FRI SEP 11...
.TROPICAL STORM NORBERT...NUMEROUS MODERATE TO SCATTERED STRONG
CONVECTION IS OBSERVED FROM 15N TO 20N BETWEEN 116W AND 122W.
SCATTERED MODERATE TO ISOLATED STRONG FROM 12N TO 15N BETWEEN
114W AND 119W.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 13N117W...FROM 11N122W TO 11N140W.
SCATTERED MODERATE ISOLATED STRONG N OF 02N E OF 90W...S OF 15N
W OF 125W.
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0000 UTC SEP 11 2026.
24 HOUR FORECAST VALID 0000 UTC SEP 12 2026.
48 HOUR FORECAST VALID 0000 UTC SEP 13 2026.
.WARNINGS.
...GALE WARNING...
.POST-TROPICAL CYCLONE LOWELL NEAR 29.0N 169.9W 997 MB AT 0300
UTC SEP 11 MOVING W OR 270 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS
45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE
QUADRANT...80 NM SE QUADRANT...0 NM SW QUADRANT...AND 120 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 540 NM NE QUADRANT...240
NM SE QUADRANT...270 NM SW QUADRANT...AND 420 NM NW QUADRANT
WITH SEAS TO 6 M. SEAS 2.5 TO 4 M ELSEWHERE N OF 26N W OF 159W.
.24 HOUR FORECAST POST-TROPICAL LOWELL MOVED N OF AREA. WINDS 20
TO 30 KT N OF 27N BETWEEN 175W AND 165W. SEAS 2.5 TO 4 M N OF 27N
W OF 163W.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND
INTENSITY.
.SYNOPSIS AND FORECAST
.LOW 09N160W 1008 MB NEARLY STATIONARY.
.24 HOUR FORECAST LOW DISSIPATED.
.TROUGH 25N160W TO 21N160W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 25N164W TO 21N162W.
.48 HOUR FORECAST TROUGH 26N166W TO 23N164W.
.TROUGH 25N140W TO 19N145W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 26N141W TO 20N146W.
.48 HOUR FORECAST TROUGH 24N147W TO 16N147W.
.TROUGH 30N147W TO 27N148W MOVING NW SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 90NM E OF TROUGH.
.24 HOUR FORECAST TROUGH 30N150W TO 25N150W.
.48 HOUR FORECAST TROUGH 30N153W TO 26N154W.
.TROUGH 14N142W TO 09N149W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 16N146W TO 10N151W.
.48 HOUR FORECAST TROUGH 20N148W TO 10N152W.
.48 HOUR FORECAST NEW FRONT 30N175W TO 24N179W.
.SEAS 2.5 TO 3 M N OF 28N BETWEEN 147W AND 155W.
.24 HOUR FORECAST SEAS SUBSIDED BELOW 2.5 M.
.WINDS 20 TO 25 KT N OF 25N BETWEEN 170W AND 165W.
.24 HOUR FORECAST WINDS 20 TO 25 KT WINDS DIMINISHED TO
20 KT OR LESS.
.WINDS 20 KT OR LOWER OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 M OR LESS OVER REMAINDER OF FORECAST AREA.
.MONSOON TROUGH FROM 09N149W TO FIRST LOW DESCRIBED ABOVE TO
SECOND LOW TO 08N170W TO 06N180W.
.ISOLATED MODERATE TSTMS S OF 07N BETWEEN 168W AND 160W.
$$
.FORECASTER JVC. HONOLULU HI.=