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Summary for Tropical Storm IDA (AT5/AL102015)

2015-09-20 16:51:41| National Hurricane Center (Atlantic)

...IDA CONTINUES WEST-NORTHWESTWARD OVER THE CENTRAL TROPICAL ATLANTIC... As of 11:00 AM AST Sun Sep 20 the center of IDA was located near 17.3, -44.8 with movement WNW at 13 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 45 mph.

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Tropical Storm IDA Public Advisory Number 9

2015-09-20 16:51:41| National Hurricane Center (Atlantic)

Issued at 1100 AM AST SUN SEP 20 2015 000 WTNT35 KNHC 201451 TCPAT5 BULLETIN TROPICAL STORM IDA ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102015 1100 AM AST SUN SEP 20 2015 ...IDA CONTINUES WEST-NORTHWESTWARD OVER THE CENTRAL TROPICAL ATLANTIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...17.3N 44.8W ABOUT 1120 MI...1805 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1100 AM AST (1500 UTC), the center of Tropical Storm Ida was located near latitude 17.3 North, longitude 44.8 West. Ida is moving toward the west-northwest near 13 mph (20 km/h), and this general motion with a decrease in forward speed is expected during the next day or so. Ida is forecast to become nearly stationary by Tuesday. Maximum sustained winds are near 45 mph (75 km/h) with higher gusts. Some gradual strengthening is possible during the next 48 hours. Tropical storm force winds extend outward up to 185 miles (295 km) from the center. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Brown

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Tropical Storm IDA Wind Speed Probabilities Number 9

2015-09-20 16:51:41| National Hurricane Center (Atlantic)

Issued at 1500 UTC SUN SEP 20 2015 000 FONT15 KNHC 201451 PWSAT5 TROPICAL STORM IDA WIND SPEED PROBABILITIES NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102015 1500 UTC SUN SEP 20 2015 AT 1500Z THE CENTER OF TROPICAL STORM IDA WAS LOCATED NEAR LATITUDE 17.3 NORTH...LONGITUDE 44.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 40 KTS...45 MPH...75 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 12Z SUN 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 12Z SUN 00Z MON 12Z MON 00Z TUE 12Z TUE 12Z WED 12Z THU PERIODS TO TO TO TO TO TO TO 00Z MON 12Z MON 00Z TUE 12Z TUE 12Z WED 12Z THU 12Z FRI FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER BROWN

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Tropical Storm IDA Forecast Advisory Number 9

2015-09-20 16:51:11| National Hurricane Center (Atlantic)

Issued at 1500 UTC SUN SEP 20 2015 000 WTNT25 KNHC 201451 TCMAT5 TROPICAL STORM IDA FORECAST/ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102015 1500 UTC SUN SEP 20 2015 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 17.3N 44.8W AT 20/1500Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT. 34 KT.......160NE 160SE 0SW 40NW. 12 FT SEAS..180NE 90SE 30SW 150NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 17.3N 44.8W AT 20/1500Z AT 20/1200Z CENTER WAS LOCATED NEAR 16.8N 44.3W FORECAST VALID 21/0000Z 18.2N 46.3W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...160NE 160SE 0SW 40NW. FORECAST VALID 21/1200Z 19.5N 47.7W MAX WIND 45 KT...GUSTS 55 KT. 34 KT...160NE 160SE 0SW 40NW. FORECAST VALID 22/0000Z 20.4N 48.5W MAX WIND 50 KT...GUSTS 60 KT. 50 KT...30NE 30SE 0SW 20NW. 34 KT...120NE 120SE 0SW 60NW. FORECAST VALID 22/1200Z 20.8N 48.7W MAX WIND 50 KT...GUSTS 60 KT. 50 KT...30NE 20SE 0SW 20NW. 34 KT...100NE 100SE 0SW 60NW. FORECAST VALID 23/1200Z 20.8N 48.7W MAX WIND 50 KT...GUSTS 60 KT. 50 KT...30NE 20SE 0SW 20NW. 34 KT...100NE 100SE 0SW 60NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 24/1200Z 20.8N 48.7W MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 25/1200Z 21.2N 49.0W MAX WIND 50 KT...GUSTS 60 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.3N 44.8W NEXT ADVISORY AT 20/2100Z $$ FORECASTER BROWN

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