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Summary for Tropical Depression Seventeen (AT2/AL172020)

2020-09-07 04:32:08| National Hurricane Center (Atlantic)

...NEW DEPRESSION FORMS OVER THE CENTRAL TROPICAL ATLANTIC... ...EXPECTED TO BECOME A TROPICAL STORM ON MONDAY... As of 11:00 PM AST Sun Sep 6 the center of Seventeen was located near 17.0, -41.5 with movement W at 5 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

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Tropical Depression Seventeen Public Advisory Number 1

2020-09-07 04:32:08| National Hurricane Center (Atlantic)

Issued at 1100 PM AST Sun Sep 06 2020 000 WTNT32 KNHC 070232 TCPAT2 BULLETIN Tropical Depression Seventeen Advisory Number 1 NWS National Hurricane Center Miami FL AL172020 1100 PM AST Sun Sep 06 2020 ...NEW DEPRESSION FORMS OVER THE CENTRAL TROPICAL ATLANTIC... ...EXPECTED TO BECOME A TROPICAL STORM ON MONDAY... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...17.0N 41.5W ABOUT 1160 MI...1865 KM W OF THE CABO VERDE ISLANDS ABOUT 1425 MI...2290 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 5 MPH...7 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Tropical Depression Seventeen was located near latitude 17.0 North, longitude 41.5 West. The depression is moving toward the west near 5 mph (7 km/h) and this motion is forecast to continue into Monday. By late Monday and Tuesday, a turn toward the west-northwest is expected, and that motion should continue into Wednesday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Slow strengthening is forecast during the next 48 hours, and the depression is expected to become a tropical storm on Monday. The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. $$ Forecaster Stewart

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Tropical Depression Seventeen Wind Speed Probabilities Number 1

2020-09-07 04:32:08| National Hurricane Center (Atlantic)

Issued at 0300 UTC MON SEP 07 2020 000 FONT12 KNHC 070232 PWSAT2 TROPICAL DEPRESSION SEVENTEEN WIND SPEED PROBABILITIES NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL172020 0300 UTC MON SEP 07 2020 AT 0300Z THE CENTER OF TROPICAL DEPRESSION SEVENTEEN WAS LOCATED NEAR LATITUDE 17.0 NORTH...LONGITUDE 41.5 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 30 KTS...35 MPH...55 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 00Z MON 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 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 00Z MON 12Z MON 00Z TUE 12Z TUE 00Z WED 00Z THU 00Z FRI PERIODS TO TO TO TO TO TO TO 12Z MON 00Z TUE 12Z TUE 00Z WED 00Z THU 00Z FRI 00Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER STEWART

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Tropical Depression Seventeen Forecast Advisory Number 1

2020-09-07 04:31:39| National Hurricane Center (Atlantic)

Issued at 0300 UTC MON SEP 07 2020 874 WTNT22 KNHC 070231 TCMAT2 TROPICAL DEPRESSION SEVENTEEN FORECAST/ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL172020 0300 UTC MON SEP 07 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL DEPRESSION CENTER LOCATED NEAR 17.0N 41.5W AT 07/0300Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 4 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 12 FT SEAS..150NE 0SE 0SW 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 17.0N 41.5W AT 07/0300Z AT 07/0000Z CENTER WAS LOCATED NEAR 17.0N 41.3W FORECAST VALID 07/1200Z 17.0N 42.1W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 08/0000Z 17.2N 42.7W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 50NE 30SE 0SW 40NW. FORECAST VALID 08/1200Z 17.5N 43.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 50SE 30SW 40NW. FORECAST VALID 09/0000Z 18.0N 44.6W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 90NE 80SE 0SW 60NW. FORECAST VALID 09/1200Z 18.6N 46.3W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 0SE 0SW 0NW. 34 KT...120NE 80SE 40SW 80NW. FORECAST VALID 10/0000Z 19.2N 48.2W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 40NE 0SE 0SW 30NW. 34 KT...120NE 80SE 40SW 80NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 11/0000Z 20.4N 51.9W MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 12/0000Z 21.2N 55.5W MAX WIND 45 KT...GUSTS 55 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.0N 41.5W NEXT ADVISORY AT 07/0900Z $$ FORECASTER STEWART

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