BULLETIN
HURRICANE IDA ADVISORY NUMBER 18
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112009
900 AM CST SUN NOV 08 2009

...CENTER OF IDA MOVING INTO THE YUCATAN CHANNEL...HURRICANE WATCH
ISSUED FOR PORTIONS OF THE NORTHERN GULF COAST...

AT 900 AM CST...1500 UTC...A HURRICANE WATCH IS IN EFFECT FROM GRAND
ISLE LOUISIANA TO THE MISSISSIPPI/ALABAMA BORDER. THIS WATCH DOES
NOT INCLUDE THE CITY OF NEW ORLEANS. A HURRICANE WATCH MEANS THAT
HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY
WITHIN 36 HOURS.

A HURRICANE WARNING REMAINS IN EFFECT FOR THE YUCATAN PENINSULA OF
MEXICO FROM PLAYA DEL CARMEN TO CABO CATOCHE. A HURRICANE WARNING
MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE
WARNING AREA WITHIN 24 HOURS. PREPARATIONS TO PROTECT LIFE AND
PROPERTY SHOULD BE RUSHED TO COMPLETION IN THE WARNING AREA.

A HURRICANE WATCH REMAINS IN EFFECT FOR THE YUCATAN PENINSULA OF
MEXICO FROM TULUM TO PLAYA DEL CARMEN. A HURRICANE WATCH MEANS THAT
HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA.

A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE YUCATAN PENINSULA
OF MEXICO FROM PUNTA ALLEN NORTHWARD TO PLAYA DEL CARMEN AND FROM
CABO CATOCHE WESTWARD TO SAN FELIPE. A TROPICAL STORM WARNING
MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED WITHIN THE
WARNING AREA WITHIN 24 HOURS.

A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE CUBAN PROVINCE OF
PINAR DEL RIO.

A TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE ISLE OF YOUTH.

INTERESTS ELSEWHERE ALONG THE NORTHERN COAST OF THE GULF OF MEXICO
SHOULD MONITOR THE PROGRESS OF IDA. ADDITIONAL TROPICAL CYCLONE
WATCHES OR WARNINGS MAY BE REQUIRED LATER TODAY.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA
OUTSIDE OF THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED
BY YOUR NATIONAL METEOROLOGICAL SERVICE.

AT 900 AM CST...1500 UTC...THE CENTER OF HURRICANE IDA WAS LOCATED
NEAR LATITUDE 21.2 NORTH...LONGITUDE 86.0 WEST OR ABOUT 75 MILES...
120 KM...NORTHEAST OF COZUMEL MEXICO AND ABOUT 80 MILES...125 KM...
WEST-SOUTHWEST OF THE WESTERN TIP OF CUBA.

IDA IS MOVING TOWARD THE NORTHWEST NEAR 10 MPH...17 KM/HR. A TURN
TOWARD THE NORTH-NORTHWEST AND AN INCREASE IN FORWARD SPEED ARE
EXPECTED DURING THE NEXT 24 HOURS...WITH A TURN TOWARD THE NORTH
LIKELY BY TUESDAY. ON THE FORECAST TRACK....THE CENTER OF IDA
SHOULD MOVE THROUGH THE YUCATAN CHANNEL INTO THE GULF OF MEXICO
TODAY...AND BE NEAR THE NORTHERN GULF COAST BY TUESDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 90 MPH...150 KM/HR...WITH HIGHER
GUSTS. IDA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON SCALE.
SOME STRENGTHENING IS FORECAST TODAY...WITH GRADUAL WEAKENING
EXPECTED ON MONDAY. IDA IS EXPECTED TO BEGIN LOSING TROPICAL
CHARACTERISTICS ON TUESDAY AS IT NEARS THE GULF COAST...BUT IT
COULD REACH THE COAST AS A TROPICAL CYCLONE.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 15 MILES...30 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO
140 MILES...220 KM.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 983 MB...29.03 INCHES.

IDA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 3 TO 5 INCHES
OVER PORTIONS OF THE YUCATAN PENINSULA AND WESTERN CUBA...WITH
POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 10 INCHES.

A STORM SURGE COULD RAISE WATER LEVELS BY AS MUCH AS 3 TO 4 FEET
ABOVE GROUND LEVEL ALONG THE COAST OF THE YUCATAN PENINSULA. NEAR
THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE
WAVES.

...SUMMARY OF 900 AM CST INFORMATION...
LOCATION...21.2N 86.0W
MAXIMUM SUSTAINED WINDS...90 MPH
PRESENT MOVEMENT...NORTHWEST OR 325 DEGREES AT 10 MPH
MINIMUM CENTRAL PRESSURE...983 MB

AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 1200 PM CST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 300
PM CST.