957
WTNT31 KNHC 090253
TCPAT1
BULLETIN
HURRICANE IDA ADVISORY NUMBER 21
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112009
900 PM CST SUN NOV 08 2009
..IDA HEADING NORTH-NORTHWESTWARD.
HURRICANE WARNING ISSUED
FOR A PORTION OF THE NORTHERN GULF COAST...
AT 900 PM CST...0300 UTC...A HURRICANE WARNING HAS BEEN ISSUED FOR
THE NORTHERN GULF COAST FROM PASCAGOULA MISSISSIPPI EASTWARD TO
INDIAN PASS FLORIDA. 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.
AT 900 PM CST...0300 UTC...A TROPICAL STORM WARNING AND A HURRICANE
WATCH ARE IN EFFECT FOR THE NORTHERN GULF COAST FROM GRAND ISLE
LOUISIANA EASTWARD TO WEST OF PASCAGOULA MISSISSIPPI...INCLUDING
NEW ORLEANS AND LAKE PONTCHARTRAIN. A TROPICAL STORM WARNING MEANS
THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE
WARNING AREA WITHIN 24 HOURS. A HURRICANE WATCH MEANS THAT
HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY
WITHIN 36 HOURS.
AT 900 PM CST...0300 UTC...A TROPICAL STORM WARNING HAS BEEN ISSUED
FOR THE NORTHERN GULF COAST FROM EAST OF INDIAN PASS TO AUCILLA
RIVER FLORIDA.
AT 900 PM CST...0300 UTC...THE GOVERNMENT OF CUBA HAS DISCONTINUED
ALL WATCHES AND WARNINGS FOR CUBA.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY
YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.
AT 900 PM CST...0300 UTC...THE CENTER OF HURRICANE IDA WAS LOCATED
NEAR LATITUDE 23.7 NORTH...LONGITUDE 86.7 WEST OR ABOUT 400 MILES...
645 KM...SOUTH-SOUTHEAST OF THE MOUTH OF THE MISSISSIPPI RIVER.
IDA IS MOVING TOWARD THE NORTH-NORTHWEST NEAR 14 MPH...22 KM/HR. A
TURN TOWARD THE NORTH AND AN INCREASE IN FORWARD SPEED ARE EXPECTED
DURING THE NEXT 24 HOURS...FOLLOWED BY A TURN TOWARD THE NORTHEAST
ON MONDAY NIGHT. ON THE FORECAST TRACK...IDA IS EXPECTED TO CROSS
THE GULF OF MEXICO TONIGHT AND MONDAY...AND APPROACH THE NORTHERN
GULF COAST MONDAY NIGHT OR EARLY TUESDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 105 MPH...165 KM/HR...WITH HIGHER
GUSTS. IDA IS A CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON SCALE.
GRADUAL WEAKENING IS FORECAST...BUT IDA IS EXPECTED TO REMAIN A
HURRICANE AS IT APPROACHES THE NORTHERN GULF COAST.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 979 MB...28.91 INCHES.
IDA IS EXPECTED TO PRODUCE ADDITIONAL RAIN ACCUMULATIONS OF 1 TO 3
INCHES OVER PORTIONS OF WESTERN CUBA...WITH ISOLATED MAXIMUM STORM
TOTAL AMOUNTS OF 8 INCHES POSSIBLE.
RAINS WILL BE INCREASING WELL IN ADVANCE OF IDA ACROSS THE CENTRAL
AND EASTERN GULF COAST...BUT WILL BECOME STEADIER AND HEAVIER BY
MONDAY INTO TUESDAY. TOTAL STORM ACCUMULATIONS OF 3 TO 5 INCHES
WITH ISOLATED MAXIMUM STORM TOTALS OF 8 INCHES WILL BE POSSIBLE
THROUGH TUESDAY FROM THE CENTRAL AND EASTERN GULF COAST NORTHWARD
INTO THE EASTERN PORTIONS OF THE TENNESSEE VALLEY AND THE SOUTHERN
APPALACHIANS.
A DANGEROUS STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS
4 TO 6 FEET ABOVE GROUND LEVEL ALONG THE COAST NEAR AND TO THE
EAST OF WHERE THE CENTER MAKES LANDFALL. NEAR THE COAST...THE SURGE
WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES.
..SUMMARY OF 900 PM CST INFORMATION
LOCATION...23.7N 86.7W
MAXIMUM SUSTAINED WINDS...105 MPH
PRESENT MOVEMENT...NORTH-NORTHWEST OR 345 DEGREES AT 14 MPH
MINIMUM CENTRAL PRESSURE...979 MB
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 1200 AM CST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 300
AM CST.
FORECASTER BROWN/BERG
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