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#307291 (Received by flhurricane at: 12:37 AM 10.Nov.2009) TCPAT1 BULLETIN TROPICAL STORM IDA INTERMEDIATE ADVISORY NUMBER 25A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112009 1200 AM CST TUE NOV 10 2009 ...IDA SLOWS DOWN AND WEAKENS A LITTLE MORE... A TROPICAL STORM WARNING REMAINS IN EFFECT FROM GRAND ISLE LOUISIANA EASTWARD TO THE AUCILLA RIVER FLORIDA...INCLUDING NEW ORLEANS AND LAKE PONTCHARTRAIN. 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 1200 AM CST...0600 UTC...THE CENTER OF TROPICAL STORM IDA WAS LOCATED NEAR LATITUDE 29.5 NORTH...LONGITUDE 88.8 WEST OR ABOUT 95 MILES...150 KM...SOUTH-SOUTHWEST OF MOBILE ALABAMA. IDA HAS SLOWED DOWN...AND IS NOW MOVING TOWARD THE NORTH NEAR 10 MPH...17 KM/HR. A TURN TOWARD THE NORTH-NORTHEAST WITH A FURTHER DECREASE IN FORWARD SPEED IS EXPECTED THIS MORNING. ON THE FORECAST TRACK...THE CENTER OF IDA SHOULD REACH THE NORTHERN GULF COAST LATER THIS MORNING. AFTER LANDFALL...IDA IS EXPECTED TO TURN EASTWARD. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 60 MPH...95 KM/HR... WITH HIGHER GUSTS. SOME ADDITIONAL WEAKENING IS EXPECTED THIS MORNING AS IDA MOVES OVER COOLER WATERS PRIOR TO MAKING LANDFALL...AND IS EXPECTED TO MERGE WITH A FRONTAL ZONE ON WEDNESDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325 KM FROM THE CENTER. A NOAA NATIONAL OCEAN SURFACE OBSERVATION SITE LOCATED NEAR THE MOUTH OF THE MISSISSIPPI RIVER RECENTLY REPORTED A SUSTAINED WIND OF 45 MPH...72 KM/HR...AND A GUST TO 55 MPH...89 KM/HR. THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY RECONNAISSANCE AIRCRAFT WAS 998 MB...29.47 INCHES. IDA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 3 TO 6 INCHES...WITH ISOLATED MAXIMUM STORM TOTALS OF 8 INCHES...THROUGH WEDNESDAY EVENING FROM THE CENTRAL AND EASTERN GULF COAST ACROSS THE SOUTHEASTERN UNITED STATES INTO THE SOUTHERN MID-ATLANTIC STATES. A DANGEROUS STORM TIDE WILL RAISE WATER LEVELS BY AS MUCH AS 3 TO 5 FEET ABOVE GROUND LEVEL ALONG THE COAST NEAR AND TO THE EAST OF WHERE THE CENTER MAKES LANDFALL...AS WELL AS IN AREAS OF ONSHORE FLOW IN SOUTHEASTERN LOUISIANA. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES. ...SUMMARY OF 1200 AM CST INFORMATION... LOCATION...29.5N 88.8W MAXIMUM SUSTAINED WINDS...60 MPH PRESENT MOVEMENT...NORTH OR 360 DEGREES AT 10 MPH MINIMUM CENTRAL PRESSURE...998 MB THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 300 AM CST. $$ FORECASTER BRENNAN |