TCMAT1
POTENTIAL TROPICAL CYCLONE ONE FORECAST/ADVISORY NUMBER 4
NWS NATIONAL HURRICANE CENTER MIAMI FL AL012026
0900 UTC WED JUN 17 2026
POTENTIAL TROP CYCLONE CENTER LOCATED NEAR 28.0N 96.7W AT 17/0900Z
POSITION ACCURATE WITHIN 40 NM
PRESENT MOVEMENT TOWARD THE NORTHEAST OR 45 DEGREES AT 5 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1003 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 28.0N 96.7W AT 17/0900Z
AT 17/0600Z CENTER WAS LOCATED NEAR 27.7N 97.1W
FORECAST VALID 17/1800Z 29.1N 95.2W...TROPICAL CYCLONE
MAX WIND 35 KT...GUSTS 45 KT.
34 KT...150NE 150SE 0SW 0NW.
FORECAST VALID 18/0600Z 31.1N 92.8W...POST-TROP/REMNT LOW
MAX WIND 25 KT...GUSTS 35 KT.
FORECAST VALID 18/1800Z...DISSIPATED
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.0N 96.7W
INTERMEDIATE PUBLIC ADVISORY...WTNT31 KNHC/MIATCPAT1...AT 17/1200Z
NEXT ADVISORY AT 17/1500Z
$$
FORECASTER BERG
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED JUN 17 2026
CCODE/1:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0000 UTC JUN 17.
24 HOUR FORECAST VALID 0000 UTC JUN 18.
48 HOUR FORECAST VALID 0000 UTC JUN 19.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 45N57W 1002 MB MOVING SE 20 KT. WITHIN 300 NM E OF A LINE
FROM 49N64W TO LOW CENTER TO 34N61W WINDS 20 TO 30 KT. SEAS TO
2.5 M.
.24 HOUR FORECAST LOW 42N44W 1010 MB. WITHIN 300 NM OF CENTER
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 42N41W 1006 MB. WITHIN 300 NM OF CENTER
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.LOW 36N75W 1008 MB MOVING E 25 KT. WITHIN 240 NM SE SEMICIRCLE
WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 32N63W 1010 MB. WITHIN 180 NM N...AND 240
NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 37N48W 1014 MB. WITHIN 240 NM S SEMICIRCLE
WINDS TO 25 KT. SEAS TO 2.5 M.
.N OF 52N E OF 40W WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.48 HOUR FORECAST N OF 63N W OF 52W WINDS 20 TO 30 KT. SEAS TO
2.5 M.
.48 HOUR FORECAST FROM 32N TO 47N W OF 64W WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 300 NM NE OF
A LINE FROM 46N63W TO 40N53W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.48 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND...AND WITHIN
120 NM NE OF A LINE FROM 52N59W TO 45N48W.
.FORECASTER BYRD. OCEAN PREDICTION CENTER.
NWS NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA
SYNOPSIS VALID 0000 UTC WED JUN 17.
24 HOUR FORECAST VALID 0000 UTC THU JUN 18.
48 HOUR FORECAST VALID 0000 UTC FRI JUN 19.
.WARNINGS.
...GULF OF AMERICA TROPICAL STORM WARNING...
.POTENTIAL TROPICAL CYCLONE ONE NEAR 27.6N 97.1W 1004 MB AT 0300
UTC JUN 17 MOVING NE OR 050 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS
25 KT GUSTS 35 KT. WITHIN 27N94W TO 29N95W TO 27N96W TO 26N97W TO
25N97W TO 26N95W TO 27N94W S TO SW WINDS 20 TO 30 KT. SEAS TO 2.5
M.
.24 HOUR FORECAST TROPICAL STORM ONE INLAND NEAR 30.2N 93.3W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM W SEMICIRCLE...90 NM NE QUADRANT AND 120 NM SE
QUADRANT. SEAS TO 3.5 M. ELSEWHERE WITHIN 29N91W TO 30N92W TO
29N93W TO 30N94W TO 28N94W TO 28N91W TO 29N91W WINDS 20 TO 33 KT.
SEAS TO 3.5 M IN SW SWELL. REMAINDER OF AREA WITHIN 29N91W TO
28N92W TO 29N94W TO 28N94W TO 27N93W TO 28N91W TO 29N91W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN SW SWELL.
.36 HOUR FORECAST TROPICAL DEPRESSION ONE INLAND NEAR 32.1N
90.9W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. SEAS TO 2.5 M
WITHIN 60 NM OF COAST.
.48 HOUR FORECAST...DISSIPATED INLAND. WITHIN 30N86W TO 30N87W
TO 28N90W TO 26N91W TO 26N90W TO 27N87W TO 30N86W WINDS 20 KT OR
LESS. SEAS 2.5 M IN S 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.
.ATLC WITHIN 20.5N71W TO 21N71.5W TO 20.5N72W TO 20N72W TO
20N70.5W TO 20.5N71W E WINDS 20 TO 25 KT. SEAS TO 2.5 M IN E
SWELL.
.24 HOUR FORECAST WITHIN 20.5N70.5W TO 21N71W TO 21N71.5W TO
20N72W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.48 HOUR FORECAST WITHIN 21N71W TO 21N72W TO 20N72W TO 20N70W TO
21N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.CARIBBEAN WITHIN 13N70W TO 13N72W TO 14N74W TO 12N74W TO 12N72W
TO 11N71W TO 13N70W...INCLUDING THE GULF OF VENEZUELA... NE TO E
WINDS 20 TO 30 KT. SEAS TO 3.0 M IN NE TO E SWELL. ELSEWHERE
WITHIN
17N74W TO 17N77W TO 13N79W TO 11N77W TO 12N74W TO 13N72W TO
17N74W WINDS 20 KT OR LESS. SEAS 2.5 M IN E SWELL.
.24 HOUR FORECAST WITHIN 13N71W TO 13N74W TO 12N73W TO 12N71W TO
12N69W TO 13N71W...INCLUDING THE GULF OF VENEZUELA... NE TO E
WINDS 20 TO 30 KT. SEAS TO 2.5 M. ELSEWHERE WITHIN 15N73W TO
16N73W TO 16N77W TO 14N77W TO 13N72W TO 15N73W WINDS 20 KT OR
LESS. SEAS 2.5 M IN E SWELL.
.48 HOUR FORECAST WITHIN 13N71W TO 13N74W TO 12N74W TO 12N73W TO
11N71W TO 11N70W TO 13N71W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 30 KT. SEAS TO 2.5 M. ELSEWHERE WITHIN
13N75.5W TO 13.5N76W TO 13.5N77W TO 13N77.5W TO 12.5N77W TO
12.5N75.5W TO 13N75.5W WINDS 20 KT OR LESS. SEAS 2.5 M IN E
SWELL.
.CARIBBEAN WITHIN 17N85W TO 17N86W TO 16N86W TO 16N85W TO 17N85W
E WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 18N86W TO 18N87W TO 17N87W TO 16N86W TO
16N85W TO 17N85W TO 18N86W E TO SE WINDS 20 TO 30 KT. SEAS LESS
THAN 2.5 M.
.48 HOUR FORECAST WITHIN 18N86W TO 18N87W TO 16N87W TO 16N86W TO
16N85W TO 18N86W...INCLUDING THE GULF OF HONDURAS... E WINDS 20
TO 30 KT. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA 12 HOUR FORECAST WITHIN 26N89W TO 25N91W TO
24N91W TO 23N91W TO 24N89W TO 26N89W SE TO S WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 23N87W TO 24N87W TO 23N88W TO 22N88W TO
22N87W TO 23N87W SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 23N87W TO 24N88W TO 23N89W TO 22N89W TO
22N88W TO 22N87W TO 23N87W SE WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M. WITHIN 26N94W TO 26N96W TO 24N98W TO 21N97W TO 22N96W TO
24N96W TO 26N94W SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.
$$