GOES enhanced visible wavelength satellite image; credit: NOAA.

TROPICAL STORM IDA ADVISORY NUMBER 23
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112009
900 AM CST MON NOV 09 2009

…IDA WEAKENS TO A TROPICAL STORM…

AT 9 AM CST…1500 UTC…ALL HURRICANE WARNINGS AND WATCHES ALONG
THE GULF COAST HAVE BEEN DISCONTINUED. A TROPICAL STORM WARNING IS
NOW IN EFFECT FROM GRAND ISLE LOUISIANA EASTWARD TO THE AUCILLA
RIVER FLORIDA…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.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA…PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.

Credit: NOAA

At 900 AM CST…1500 UTC…THE CENTER OF TROPICAL STORM IDA WAS
LOCATED NEAR LATITUDE 26.5 NORTH…LONGITUDE 88.3 WEST OR ABOUT 185
MILES…300 KM…SOUTH-SOUTHEAST OF THE MOUTH OF THE MISSISSIPPI
RIVER AND ABOUT 285 MILES…460 KM…SOUTH-SOUTHWEST OF PENSACOLA
FLORIDA.

IDA IS MOVING TOWARD THE NORTH-NORTHWEST NEAR 17 MPH…28 KM/HR. A
TURN TOWARD THE NORTH AND THEN TO THE NORTH-NORTHEAST IS EXPECTED
OVER THE NEXT 24 HOURS. ON THE FORECAST TRACK…THE CENTER OF IDA
IS EXPECTED TO MAKE LANDFALL ALONG THE NORTHERN GULF COAST TUESDAY
MORNING. AFTER LANDFALL…A TURN TO THE EAST IS EXPECTED ON
TUESDAY.

MAXIMUM SUSTAINED WINDS CONTINUE TO DECREASE AND ARE NOW NEAR 70
MPH…110 KM/HR…WITH HIGHER GUSTS. SOME ADDITIONAL WEAKENING IS
EXPECTED TODAY AS IDA APPROACHES THE COAST.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES…325 KM
FROM THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 996 MB…29.41 INCHES.

RAINS FROM IDA WILL BE REACHING THE COAST OVER PORTIONS OF THE
WARNING AREA WITHIN THE NEXT HOUR OR SO. TOTAL STORM ACCUMULATIONS
OF 3 TO 6 INCHES…WITH ISOLATED MAXIMUM STORM TOTALS OF 8
INCHES…ARE POSSIBLE THROUGH WEDNESDAY MORNING FROM THE CENTRAL
AND EASTERN GULF COAST NORTHWARD INTO THE EASTERN PORTIONS OF THE
TENNESSEE VALLEY…THE SOUTHERN APPALACHIANS…AND THE SOUTHEASTERN
UNITED 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. NEAR THE COAST…THE SURGE
WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES.

…SUMMARY OF 900 AM CST INFORMATION…
LOCATION…26.5N 88.3W
MAXIMUM SUSTAINED WINDS…70 MPH
PRESENT MOVEMENT…NORTH-NORTHWEST OR 340 DEGREES AT 17 MPH
MINIMUM CENTRAL PRESSURE…996 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.

GOES infrared satellite image; credit: NOAA

FORECASTER FRANKLIN

- courtesy of NOAA National Hurricane Center