Hurricane Isaac
Public Advisory 14A
970
WTNT34 KNHC 241746
TCPAT4
BULLETIN
TROPICAL STORM ISAAC INTERMEDIATE ADVISORY NUMBER 14A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
200 PM EDT FRI AUG 24 2012
...ISAAC TURNS NORTHWESTWARD...CENTER APPROACHING THE SOUTHERN COAST
OF HISPANIOLA...
SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...16.8N 71.4W
ABOUT 135 MI...215 KM SSE OF PORT AU PRINCE HAITI
ABOUT 160 MI...255 KM SW OF SANTO DOMINGO DOMINICAN REPUBLIC
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* HAITI
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* DOMINICAN REPUBLIC
* HAITI
* CUBAN PROVINCES OF CIEGO DE AVILA...SANCTI SPIRITUS...VILLA
CLARA...CAMAGUEY...LAS TUNAS...GRANMA...HOLGUIN...SANTIAGO DE
CUBA...AND GUANTANAMO
* THE CENTRAL BAHAMAS INCLUDING CAT ISLAND...THE EXUMAS...LONG
ISLAND...RUM CAY...AND SAN SALVADOR
* SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED ISLAND...LONG
CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED ISLANDS
* TURKS AND CAICOS ISLANDS
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* CUBAN PROVINCES OF MATANZAS AND CIENFUEGOS
* ANDROS ISLAND
* JAMAICA
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA...IN THIS CASE WITHIN THE NEXT 24 TO 36 HOURS.
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
INTERESTS THE REMAINDER OF CUBA...THE REMAINDER OF THE BAHAMAS...
SOUTH FLORIDA...AND THE FLORIDA KEYS SHOULD MONITOR THE PROGRESS OF
ISAAC. WATCHES WILL LIKELY BE REQUIRED FOR PORTIONS OF THE FLORIDA
KEYS LATER TODAY AND ARE ALSO POSSIBLE FOR PORTIONS OF THE SOUTHERN
FLORIDA PENINSULA.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 PM EDT...1800 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED NEAR LATITUDE 16.8 NORTH...LONGITUDE 71.4 WEST. ISAAC IS NOW
MOVING TOWARD THE NORTHWEST NEAR 14 MPH...22 KM/H..AND THIS GENERAL
MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS. ON THE
FORECAST TRACK...THE CENTER OF ISAAC WILL APPROACH THE SOUTHERN
COAST OF HISPANIOLA THIS AFTERNOON...PASS NEAR OR OVER HAITI
TONIGHT...AND MOVE NEAR OR OVER EASTERN AND CENTRAL CUBA SATURDAY
AND SUNDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/H...WITH HIGHER
GUSTS. SOME STRENGTHENING IS POSSIBLE BEFORE THE CENTER REACHES THE
COAST OF HISPANIOLA TONIGHT...AND ISAAC COULD BE NEAR HURRICANE
STRENGTH AT LANDFALL.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 185 MILES...295 KM
FROM THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON A SHIP REPORT IS 997
MB...29.44 INCHES.
HAZARDS AFFECTING LAND
----------------------
RAINFALL...TOTAL RAINFALL ACCUMULATIONS OF 8 TO 12 INCHES...WITH
MAXIMUM AMOUNTS OF 20 INCHES...ARE POSSIBLE OVER HISPANIOLA. THESE
RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES.
TOTAL RAIN ACCUMULATIONS OF 4 TO 8 INCHES...WITH MAXIMUM AMOUNTS OF
12 INCHES...ARE POSSIBLE ACROSS EASTERN CUBA AND JAMAICA. TOTAL
RAIN ACCUMULATIONS OF 2 TO 4 INCHES...WITH MAXIMUM AMOUNTS OF 6
INCHES ARE EXPECTED OVER PUERTO RICO AND THE VIRGIN ISLANDS. TOTAL
RAIN ACCUMULATIONS OF 2 TO 4 INCHES ARE POSSIBLE OVER THE
SOUTHEASTERN BAHAMAS.
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED OVER PORTIONS OF THE
DOMINICAN REPUBLIC AND HAITI THIS AFTERNOON...WITH HURRICANE
CONDITIONS POSSIBLE. TROPICAL STORM CONDITIONS ARE EXPECTED OVER
THE SOUTHEASTERN BAHAMAS AND THE TURKS AND CAICOS ISLANDS LATER
TODAY AND TONIGHT...AND ARE EXPECTED OVER THE CENTRAL BAHAMAS BY
SATURDAY OR SATURDAY NIGHT. TROPICAL STORM CONDITIONS ARE EXPECTED
OVER EASTERN CUBA BY TONIGHT AND OVER CENTRAL CUBA BY SATURDAY OR
SATURDAY NIGHT. TROPICAL STORM CONDITIONS COULD REACH NORTHWESTERN
CUBA AND ANDROS ISLAND BY SATURDAY NIGHT.
STORM SURGE...A STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 1
TO 3 FEET ABOVE NORMAL TIDE LEVELS IN AREAS OF ONSHORE WINDS IN THE
TROPICAL STORM WARNING AREA. NEAR THE COAST...THE SURGE WILL BE
ACCOMPANIED BY DANGEROUS WAVES.
SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL AFFECT THE
VIRGIN ISLANDS...PUERTO RICO...HISPANIOLA...THE SOUTHEASTERN AND
CENTRAL BAHAMAS...THE TURKS AND CAICOS...AND EASTERN AND CENTRAL
CUBA DURING THE NEXT COUPLE OF DAYS. PLEASE CONSULT PRODUCTS FROM
YOUR LOCAL WEATHER OFFICE FOR MORE INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 PM EDT.
$$
FORECASTER BEVEN
