TCMEP2
TROPICAL STORM GENEVIEVE FORECAST/ADVISORY NUMBER 34
NWS NATIONAL HURRICANE CENTER MIAMI FL EP072026
1500 UTC SAT AUG 01 2026
TROPICAL STORM CENTER LOCATED NEAR 23.0N 133.7W AT 01/1500Z
POSITION ACCURATE WITHIN 30 NM
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 12 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB
MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT.
34 KT.......120NE 40SE 40SW 120NW.
4 M SEAS....120NE 75SE 90SW 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 23.0N 133.7W AT 01/1500Z
AT 01/1200Z CENTER WAS LOCATED NEAR 22.8N 133.1W
FORECAST VALID 02/0000Z 23.6N 135.7W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT...100NE 30SE 30SW 100NW.
FORECAST VALID 02/1200Z 24.5N 138.3W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT...100NE 0SE 0SW 80NW.
FORECAST VALID 03/0000Z 25.5N 140.8W...POST-TROPICAL
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 70NE 0SE 0SW 50NW.
FORECAST VALID 03/1200Z 26.4N 143.0W...POST-TROPICAL
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 30NE 0SE 0SW 0NW.
FORECAST VALID 04/0000Z 27.4N 144.4W...POST-TROP/REMNT LOW
MAX WIND 30 KT...GUSTS 40 KT.
FORECAST VALID 04/1200Z 28.4N 145.4W...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 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
OUTLOOK VALID 05/1200Z 31.1N 146.2W...POST-TROP/REMNT LOW
MAX WIND 25 KT...GUSTS 35 KT.
OUTLOOK VALID 06/1200Z...DISSIPATED
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.0N 133.7W
NEXT ADVISORY AT 01/2100Z
$$
FORECASTER HAGEN=
HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SAT AUG 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC AUG 01.
24 HOUR FORECAST VALID 1200 UTC AUG 02.
48 HOUR FORECAST VALID 1200 UTC AUG 03.
.WARNINGS.
...GALE WARNING...
.FROM 33N TO 40N BETWEEN 119W AND 130W AREA OF NW TO N WINDS TO
25 KT. SEAS TO 3 M.
.18 HOUR FORECAST S OF 42N BETWEEN 120W AND 130W AREA OF NW WINDS
25 TO 35 KT. SEAS TO 3 M.
.24 HOUR FORECAST S OF 42N BETWEEN 120W AND 130W AREA OF NW WINDS
25 TO 35 KT. SEAS TO 3 M.
.48 HOUR FORECAST S OF 45N BETWEEN 120W AND 132W AREA OF NW WINDS
25 TO 35 KT. SEAS TO 3 M.
...GALE WARNING...
.COMPLEX LOW W OF AREA WITH MAIN CENTER 52N164E 998 MB MOVING NE
20 KT. WITHIN 540 NM E QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M.
.18 HOUR FORECAST COMPLEX LOW W OF AREA WITH MEAN CENTER NEAR
56N171E 996 MB. WITHIN 360 NM SE SEMICIRCLE WINDS 25 TO 35 KT.
SEAS 2.5 TO 4 M.
.24 HOUR FORECAST COMPLEX LOW W OF AREA WITH MEAN CENTER NEAR
59N177E 996 MB. WITHIN 480 NM E AND 660 NM S QUADRANTS WINDS 25
TO 35 KT. SEAS 2.5 TO 4 M...HIGHEST S OF CENTER. ELSEWHERE NW OF
A LINE FROM 47N180W TO 56N165W TO 65N165W WINDS TO 25 KT. SEAS TO
3 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 63N175W 990
MB. FROM 55N TO 64N W OF ALASKA WITHIN THE BERING SEA WINDS 25 TO
35 KT. SEAS 2.5 TO 4 M. ELSEWHERE NW OF A LINE FROM 46N180W TO
52N160W TO 65N152W WINDS TO 25 KT. SEAS TO 2.5 M.
.SYNOPSIS AND FORECAST.
.LOW 50N133W 1011 MB MOVING E 15 KT THEN DISSIPATING INLAND.
WITHIN 540 NM SW SEMICIRCLE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.S OF 34N W OF 165W AREA OF E WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST S OF 36N W OF 172W AREA OF E WINDS TO 25 KT.
SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS W OF AREA.
.COMPLEX LOW WITH MEAN CENTER NEAR 55N161W 1009 MB MOVING SE 15
KT. BETWEEN 300 NM AND 660 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS
TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 52N153W 1016
MB. WITHIN 600 NM SE SEMICIRCLE AND SW QUADRANT WINDS TO 25 KT.
SEAS TO 3 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 47N148W 1019
MB. WITHIN 300 NM NE AND 360 NM SE QUADRANTS WINDS TO 25 KT. SEAS
TO 2.5 M.
.48 HOUR FORECAST POST-TROPICAL CYCLONE GENEVIEVE S OF AREA
26N143W 1008 MB. S OF 33N BETWEEN 138W AND 146W WINDS TO 25 KT.
SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM EITHER
SIDE OF A LINE FROM 58N166W TO 52N155W TO 42N166W...AND W OF A
LINE FROM 42N170W TO 60N179E.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 50N145W TO 43N153W...AND W OF A LINE FROM 42N170W TO 57N165W
TO 65N170W.
.48 HOUR FORECAST DENSE FOG N OF 63N W OF 165W...AND WITHIN 300
NM EITHER SIDE OF A LINE FROM 48N180W TO 57N154W.
.FORECASTER ANDERSON. 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 1200 UTC SAT AUG 1.
24 HOUR FORECAST VALID 1200 UTC SUN AUG 2.
48 HOUR FORECAST VALID 1200 UTC MON AUG 3.
.WARNINGS.
...TROPICAL STORM WARNING...
.TROPICAL STORM GENEVIEVE NEAR 23.0N 133.7W 1003 MB AT 1500 UTC
AUG 01 MOVING WNW OR 285 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS
40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM N
SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN
120 NM N SEMICIRCLE...75 NM SE QUADRANT AND 90 NM SW QUADRANT
WITH SEAS TO 6.5 M. ELSEWHERE WITHIN 26N131W TO 27N132W TO
27N136W TO 26N138W TO 22N135W TO 23N131W TO 26N131W WINDS 20 TO
33 KT. SEAS 2.5 TO 4.0 M.
.24 HOUR FORECAST TROPICAL STORM GENEVIEVE NEAR 24.5N 138.3W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM S SEMICIRCLE...100 NM NE QUADRANT AND 80 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM NE AND 60 NM SW
SEMICIRCLES WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 27N136W TO
29N138W TO 30N140W TO 24N140W TO 24N136W TO 27N136W WINDS 20 TO
33 KT. SEAS 2.5 TO 4.0 M.
.48 HOUR FORECAST POST-TROPICAL GENEVIEVE NEAR 26.4N 143.0W.
MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 0 NM OF CENTER EXCEPT 30 NM NE QUADRANT. ELSEWHERE WITHIN
29N139W TO 30N139W TO 30N140W TO 25N140W TO 26N139W TO 27N139W TO
29N139W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.
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 12N88W TO 11N91W TO 10N91W TO 09N88W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 01S105W TO 00N110W TO 01S115W TO 03.4S118W TO 03.4S104W
TO 01S105W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N
SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.18 HOUR FORECAST WITHIN 31N113W TO 32N114W TO 31N114W TO
29N113W TO 29N112W TO 30N113W TO 31N113W...INCLUDING THE GULF OF
CALIFORNIA... SE WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 30N122W TO 30N125W TO 29.5N125W TO
29N124W TO 29N123W TO 29.5N122.5W TO 30N122W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.48 HOUR FORECAST WITHIN 30N121W TO 30N128W TO 28N126W TO
28N124W TO 29N122W TO 30N121W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC SAT AUG 1...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N85W TO 08N90W. ITCZ FROM 08N90W TO
10N115W, AND FROM 10N120W TO 08N130W TO 12N140W. NUMEROUS
MODERATE TO ISOLATED STRONG FROM 04N TO 11N EAST OF 95W.
SCATTERED MODERATE 08N TO 12N BETWEEN 103W AND 108W.
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC AUG 01 2026.
24 HOUR FORECAST VALID 1200 UTC AUG 02 2026.
48 HOUR FORECAST VALID 1200 UTC AUG 03 2026.
.WARNINGS.
...GALE WARNING...
.48 HOUR FORECAST POST-TROPICAL LOW OF GENEVIEVE 1008 MB NEAR
26.4N
143.0W. WINDS 25 TO 35 KT WITHIN 30 NM NE QUADRANT OF LOW. WINDS
20
TO 25 KT REMAINDER OF AREA N OF 25N E OF 146W. SEAS 3.5 TO 4.5 M
FROM 25N TO 28N E OF 143W. SEAS 2.5 TO 3.5 M REMAINDER OF AREA N
OF
24N E OF 147W.
.SYNOPSIS AND FORECAST
.TROUGH 30N171W 26N174W MOVING WNW 10 KT. WINDS 20 TO 25 KT AND
SEAS 2.5 TO 3 M N OF 28N BETWEEN 167W AND 178W. ISOLATED STRONG
TSTMS N OF 27N BETWEEN 169W AND 172W. ISOLATED MODERATE TSTMS FROM
26N TO 28N BETWEEN 175W AND 178W.
.24 HOUR FORECAST TROUGH 30N177W 26N180W. WINDS EASED BELOW 20 KT
AND SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST TROUGH MOVED NW OF AREA.
.LOW NEAR 06N161W 1009 MB NEARLY STATIONARY. TROUGH 13N140W
06N150W
TO LOW TO 05N168W. ISOLATED MODERATE TSTMS FROM 11N TO 15N E OF
144W...FROM 03N TO 06N E OF 147W...AND FROM 04N TO 11N BETWEEN
155W
AND 166W.
.24 HOUR FORECAST LOW 07N165W 1010 MB. TROUGH 15N143W 07N150W TO
LOW.
.48 HOUR FORECAST LOW 07N168W 1010 MB. TROUGH 14N147W 06N155W TO
LOW.
.WINDS 20 TO 25 KT IN AREA BOUNDED BY 29N140W 24N140W 14N160W
25N160W 29N140W.
.24 HOUR FORECAST WINDS 20 TO 30 KT N OF 24N E OF 142W. WINDS 20
TO
25 KT FROM 15N TO 25N BETWEEN 155W AND 170W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 20N TO 26N W OF 165W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M IN AREA BOUNDED BY 29N140W 22N140W 12N161W
25N160W
29N140W.
.24 HOUR FORECAST SEAS 2.5 TO 3.5 M N OF 21N E OF 146W. SEAS 2.5
TO
3 M FROM 14N TO 27N BETWEEN 146W AND 166W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 13N TO 24N BETWEEN 163W AND
173W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ISOLATED MODERATE TSTMS S OF 04N BETWEEN 169W AND 173W...AND FROM
07N TO 13N W OF 173W.
$$
.FORECASTER WROE. HONOLULU HI.=