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Tropical Depression IDA Graphics
2015-09-25 23:09:55| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Fri, 25 Sep 2015 20:35:11 GMT Wind Speed Probabilities last updated Fri, 25 Sep 2015 21:05:47 GMT
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Tropical Depression IDA Forecast Discussion Number 30
2015-09-25 22:35:46| National Hurricane Center (Atlantic)
Issued at 500 PM AST FRI SEP 25 2015 000 WTNT45 KNHC 252035 TCDAT5 TROPICAL DEPRESSION IDA DISCUSSION NUMBER 30 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102015 500 PM AST FRI SEP 25 2015 Not much has changed today and resilient Ida is still there. It consists of a tight swirl of low clouds with a curved convective band to the east of the center. The initial intensity is estimated at 25 kt. The overall circulation is expected to decay as the depression continues to move within an environment of high shear and dry air. The depression is expected to degenerate into a remnant low in about 24 hours or sooner. The center has been moving toward the northwest at about 5 kt. A high pressure system is forecast to develop over the North Atlantic, and this high will force the shallow depression, or its remnants, to move toward the northwest, and then, as the high to the north intensifies, a sharp turn to the west or southwest should occur Sunday night or Monday. FORECAST POSITIONS AND MAX WINDS INIT 25/2100Z 22.5N 45.5W 25 KT 30 MPH 12H 26/0600Z 23.5N 46.0W 25 KT 30 MPH 24H 26/1800Z 24.5N 47.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 27/0600Z 25.0N 47.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 27/1800Z 24.6N 48.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 72H 28/1800Z 23.5N 51.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 96H 29/1800Z 22.6N 54.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 30/1800Z...DISSIPATED $$ Forecaster Avila
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Tropical Depression IDA Wind Speed Probabilities Number 30
2015-09-25 22:34:16| National Hurricane Center (Atlantic)
Issued at 2100 UTC FRI SEP 25 2015 000 FONT15 KNHC 252034 PWSAT5 TROPICAL DEPRESSION IDA WIND SPEED PROBABILITIES NUMBER 30 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102015 2100 UTC FRI SEP 25 2015 AT 2100Z THE CENTER OF TROPICAL DEPRESSION IDA WAS LOCATED NEAR LATITUDE 22.5 NORTH...LONGITUDE 45.5 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 25 KTS...30 MPH...45 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 18Z FRI AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 64 KT ARE SHOWN WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 18Z FRI 06Z SAT 18Z SAT 06Z SUN 18Z SUN 18Z MON 18Z TUE PERIODS TO TO TO TO TO TO TO 06Z SAT 18Z SAT 06Z SUN 18Z SUN 18Z MON 18Z TUE 18Z WED FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER AVILA
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Summary for Tropical Depression IDA (AT5/AL102015)
2015-09-25 22:33:46| National Hurricane Center (Atlantic)
...RESILIENT IDA STILL THERE BUT EXPECTED TO BECOME A REMNANT LOW THIS WEEKEND... As of 5:00 PM AST Fri Sep 25 the center of IDA was located near 22.5, -45.5 with movement NW at 6 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 30 mph.
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Tropical Depression IDA Public Advisory Number 30
2015-09-25 22:33:46| National Hurricane Center (Atlantic)
Issued at 500 PM AST FRI SEP 25 2015 000 WTNT35 KNHC 252033 TCPAT5 BULLETIN TROPICAL DEPRESSION IDA ADVISORY NUMBER 30 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102015 500 PM AST FRI SEP 25 2015 ...RESILIENT IDA STILL THERE BUT EXPECTED TO BECOME A REMNANT LOW THIS WEEKEND... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...22.5N 45.5W ABOUT 1175 MI...1895 KM ENE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...NW OR 325 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 PM AST (2100 UTC), the center of Tropical Depression Ida was located near latitude 22.5 North, longitude 45.5 West. The depression is moving toward the northwest near 6 mph (9 km/h). This general motion is expected to continue through Saturday with a sharp turn toward the west on Sunday. Maximum sustained winds are near 30 mph (45 km/h) with higher gusts. Ida is expected to become a remnant low over the weekend. The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Avila
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