BULLETIN
HURRICANE GABRIELLE INTERMEDIATE ADVISORY NUMBER 35A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072025
600 PM GMT THU SEP 25 2025
...GABRIELLE WILL MOVE NEAR OR OVER THE AZORES TONIGHT INTO EARLY
FRIDAY...
...EXPECTED TO BRING HURRICANE CONDITIONS, A DANGEROUS STORM
SURGE, AND LARGE AND DESTRUCTIVE WAVES...
SUMMARY OF 600 PM GMT...1800 UTC...INFORMATION
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LOCATION...36.7N 33.8W
ABOUT 385 MI...620 KM W OF THE AZORES
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...E OR 80 DEGREES AT 31 MPH...50 KM/H
MINIMUM CENTRAL PRESSURE...982 MB...29.00 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A HURRICANE WARNING IS IN EFFECT FOR...
* ALL OF THE AZORES
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA, IN THIS CASE TONIGHT OR EARLY
FRIDAY. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED
TO COMPLETION.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA, PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND OUTLOOK
----------------------
AT 600 PM GMT (1800 UTC), THE CENTER OF HURRICANE GABRIELLE WAS
LOCATED NEAR LATITUDE 36.7 NORTH, LONGITUDE 33.8 WEST. GABRIELLE IS
MOVING TOWARD THE EAST NEAR 31 MPH (50 KM/H). A FAST EASTWARD TO
EAST-NORTHEASTWARD MOTION IS EXPECTED THROUGH FRIDAY, FOLLOWED BY A
SLOWER EASTWARD TO EAST-SOUTHEASTWARD MOTION THIS WEEKEND. ON THE
FORECAST TRACK, THE CENTER OF GABRIELLE WILL MOVE ACROSS THE AZORES
TONIGHT INTO EARLY FRIDAY, THEN APPROACH THE COAST OF PORTUGAL AS
AN EXTRATROPICAL CYCLONE BY EARLY SUNDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH (120 KM/H) WITH HIGHER
GUSTS. GABRIELLE IS FORECAST TO BE AT HURRICANE STRENGTH WHEN IT
PASSES THROUGH THE AZORES. AFTER THAT, IT IS EXPECTED TO WEAKEN AS
AN EXTRATROPICAL LOW THROUGH THE WEEKEND.
HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 30 MILES (45 KM) FROM
THE CENTER AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 185
MILES (295 KM).
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 982 MB (29.00 INCHES).
HAZARDS AFFECTING LAND
----------------------
KEY MESSAGES FOR GABRIELLE CAN BE FOUND IN THE TROPICAL CYCLONE
DISCUSSION UNDER AWIPS HEADER MIATCDAT2 AND WMO HEADER WTNT42 KNHC.
WIND: HURRICANE CONDITIONS, ESPECIALLY IN GUSTS, ARE EXPECTED IN THE
AZORES TONIGHT INTO EARLY FRIDAY, WITH TROPICAL STORM CONDITIONS
LIKELY BY THIS EVENING. SIGNIFICANT HURRICANE-FORCE WIND GUSTS ARE
LIKELY ACROSS PORTIONS OF THE AZORES EVEN AFTER THE CENTER PASSES.
STORM SURGE: A DANGEROUS STORM SURGE IS EXPECTED TO PRODUCE
SIGNIFICANT COASTAL FLOODING IN AREAS OF ONSHORE WINDS IN THE
AZORES. THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE
WAVES.
RAINFALL: THROUGH FRIDAY MORNING, GABRIELLE COULD PRODUCE UP TO 3 TO
5 INCHES, 75 TO 125 MM, OF STORM TOTAL RAINFALL ACROSS THE CENTRAL
AZORES. THIS RAINFALL COULD PRODUCE FLASH FLOODING WITHIN THE
MOUNTAINS. ELSEWHERE, GABRIELLE IS EXPECTED TO YIELD 1 TO 3 INCHES,
OR 25 TO 75 MM, OF RAIN ACROSS THE WESTERN AND EASTERN AZORES.
SURF: SWELLS GENERATED BY GABRIELLE WILL SPREAD ACROSS THE AZORES
THROUGH TONIGHT AND CONTINUE TO AFFECT THE ISLANDS THROUGH THE
WEEKEND. SWELLS FROM GABRIELLE WILL REACH THE COAST OF PORTUGAL ON
SATURDAY. THESE SWELLS ARE EXPECTED TO PRODUCE LIFE-THREATENING
SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS ISSUED BY
YOUR LOCAL WEATHER OFFICE.
NEXT ADVISORY
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NEXT COMPLETE ADVISORY AT 900 PM GMT.
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