Tropical Storm Helene
Public Advisory 11
755
WTNT33 KNHC 180903
TCPAT3
BULLETIN
HURRICANE GORDON ADVISORY NUMBER 11
NWS NATIONAL HURRICANE CENTER MIAMI FL AL082012
500 AM AST SAT AUG 18 2012
...GORDON BECOMES A HURRICANE...TROPICAL STORM WARNING ISSUED FOR
THE CENTRAL AND EASTERN AZORES...
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...34.0N 40.7W
ABOUT 815 MI...1310 KM WSW OF THE AZORES
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...E OR 90 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
THE GOVERNMENT OF PORTUGAL HAS ISSUED A TROPICAL STORM WARNING FOR
THE CENTRAL AND EASTERN AZORES.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE CENTRAL AND EASTERN AZORES
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 AM AST...0900 UTC...THE CENTER OF HURRICANE GORDON WAS
LOCATED NEAR LATITUDE 34.0 NORTH...LONGITUDE 40.7 WEST. GORDON IS
MOVING TOWARD THE EAST NEAR 18 MPH...30 KM/H...AND THIS MOTION IS
EXPECTED TO CONTINUE TODAY. A TURN TOWARD THE EAST-NORTHEAST IS
EXPECTED ON SUNDAY. ON THE FORECAST TRACK...THE CENTER OF GORDON
SHOULD APPROACH THE CENTRAL AND EASTERN AZORES ON SUNDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/H...WITH HIGHER
GUSTS. GORDON IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. LITTLE CHANGE IN STRENGTH IS EXPECTED
TODAY. WEAKENING IS EXPECTED TONIGHT AND SUNDAY...AND GORDON IS
EXPECTED TO WEAKEN TO A TROPICAL STORM AS IT APPROACHES THE AZORES.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES...45 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 125
MILES...205 KM..MAINLY TO THE SOUTH OF THE CENTER.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 988 MB...29.18 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE IN THE CENTRAL AND
EASTERN AZORES BY LATE SUNDAY.
NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...800 AM AST.
NEXT COMPLETE ADVISORY...1100 AM AST.
$$
FORECASTER BEVEN
431
WTNT32 KNHC 180906
TCPAT2
BULLETIN
TROPICAL STORM HELENE ADVISORY NUMBER 11
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012
400 AM CDT SAT AUG 18 2012
...HELENE VERY NEAR THE COAST OF MEXICO...EXPECTED TO MAKE LANDFALL
LATER TODAY...
SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...21.6N 97.0W
ABOUT 70 MI...115 KM SE OF TAMPICO MEXICO
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF MEXICO FROM BARRA DE NAUTLA TO LA CRUZ
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE
NEXT 24 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 400 AM CDT...0900 UTC...THE CENTER OF TROPICAL STORM HELENE WAS
LOCATED NEAR LATITUDE 21.6 NORTH...LONGITUDE 97.0 WEST. HELENE IS
MOVING TOWARD THE NORTHWEST NEAR 7 MPH...11 KM/H...AND THIS GENERAL
MOTION IS EXPECTED TO CONTINUE FOR THE NEXT DAY OR SO. ON THE
FORECAST TRACK...THE CENTER OF HELENE WILL MOVE INLAND IN THE
WARNING AREA LATER TODAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 40 MPH...65 KM/H...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS EXPECTED BEFORE LANDFALL.
WEAKENING IS ANTICIPATED AFTER THE STORM MOVES INLAND.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM
FROM THE CENTER.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 1007 MB...29.74 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO FIRST REACH THE
COAST WITHIN THE WARNING AREA LATER THIS MORNING.
RAINFALL...HELENE IS EXPECTED TO PRODUCE TOTAL RAINFALL
ACCUMULATIONS OF 4 TO 8 INCHES ACROSS NORTHEASTERN PORTIONS OF
MEXICO INCLUDING NORTHERN VERACRUZ...SOUTHERN TAMAULIPAS...AND
EASTERN SAN LUIS STATES. THESE RAINS COULD PRODUCE LIFE-THREATENING
FLASH FLOODS AND MUD SLIDES OVER HIGHER ELEVATIONS.
STORM SURGE...A STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 1
TO 2 FEET ABOVE NORMAL TIDE LEVELS ALONG THE IMMEDIATE COAST NEAR
AND TO THE NORTH OF WHERE THE CENTER MAKES LANDFALL.
NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...700 AM CDT.
NEXT COMPLETE ADVISORY...1000 AM CDT.
$$
FORECASTER CANGIALOSI/BEVEN
