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Tropical Depression Nineteen Forecast Discussion Number 2
2017-11-06 15:37:04| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Mon Nov 06 2017 000 WTNT44 KNHC 061433 TCDAT4 Tropical Depression Nineteen Discussion Number 2 NWS National Hurricane Center Miami FL AL192017 1100 AM AST Mon Nov 06 2017 The depression has a sheared appearance with the low-level center exposed to the west of the mid-level center and the convective bands. A very recent ASCAT-B overpass indicated that maximum winds are near 30 kt, which is also in agreement with a Dvorak classification from TAFB. Based on these data, the initial wind speed is held at 30 kt. The depression has slowed down and turned to the left, with the initial motion estimated to be 015/3 kt. A faster north to north-northeast motion is expected during the next couple of days while the system moves in the flow on the west side of a mid-level ridge. Thereafter, an even faster motion toward the northeast is forecast when the cyclone becomes embedded in the mid-latitude westerlies. The model guidance is in good agreement, and the NHC track forecast is nudged to the west of the previous one to come into agreement with the latest consensus models. Although the environment ahead of the depression is not expected to be particularly conducive for strengthening as a tropical system, baroclinic enhancements and the expected faster forward speed should cause the cyclone to gain some strength during the next couple of days. The global models agree that the cyclone should merge with a cold front by Wednesday evening, causing extratropical transition. The extratropical cyclone is expected to gradually weaken and dissipate in 4 to 5 days. The guidance has trended a little higher this cycle, and the NHC intensity forecast follows that trend and lies near the IVCN and HCCA consensus models. FORECAST POSITIONS AND MAX WINDS INIT 06/1500Z 29.5N 50.4W 30 KT 35 MPH 12H 07/0000Z 30.8N 50.2W 35 KT 40 MPH 24H 07/1200Z 33.6N 49.8W 40 KT 45 MPH 36H 08/0000Z 37.3N 49.0W 45 KT 50 MPH 48H 08/1200Z 41.4N 46.6W 50 KT 60 MPH 72H 09/1200Z 51.0N 33.5W 45 KT 50 MPH...POST-TROP/EXTRATROP 96H 10/1200Z 57.0N 14.0W 35 KT 40 MPH...POST-TROP/EXTRATROP 120H 11/1200Z...DISSIPATED $$ Forecaster Cangialosi
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Summary for Tropical Depression Nineteen (AT4/AL192017)
2017-11-06 15:33:09| National Hurricane Center (Atlantic)
...TROPICAL DEPRESSION FORECAST TO STRENGTHEN OVER THE CENTRAL ATLANTIC... ...NO THREAT TO LAND... As of 11:00 AM AST Mon Nov 6 the center of Nineteen was located near 29.5, -50.4 with movement NNE at 3 mph. The minimum central pressure was 1013 mb with maximum sustained winds of about 35 mph.
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Tropical Depression Nineteen Public Advisory Number 2
2017-11-06 15:33:09| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Mon Nov 06 2017 000 WTNT34 KNHC 061432 TCPAT4 BULLETIN Tropical Depression Nineteen Advisory Number 2 NWS National Hurricane Center Miami FL AL192017 1100 AM AST Mon Nov 06 2017 ...TROPICAL DEPRESSION FORECAST TO STRENGTHEN OVER THE CENTRAL ATLANTIC... ...NO THREAT TO LAND... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...29.5N 50.4W ABOUT 875 MI...1405 KM E OF BERMUDA ABOUT 1460 MI...2350 KM WSW OF THE AZORES MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 3 MPH...6 KM/H MINIMUM CENTRAL PRESSURE...1013 MB...29.92 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 Depression Nineteen was located near latitude 29.5 North, longitude 50.4 West. The depression is moving toward the north-northeast near 3 mph (6 km/h). A significantly faster north to north-northeast motion is expected during the next couple of days. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Slow strengthening is expected during the next 48 hours, and the depression could become a tropical storm later today. The estimated minimum central pressure is 1013 mb (29.92 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Cangialosi
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Tropical Depression Nineteen Forecast Advisory Number 2
2017-11-06 15:33:09| National Hurricane Center (Atlantic)
Issued at 1500 UTC MON NOV 06 2017 000 WTNT24 KNHC 061432 TCMAT4 TROPICAL DEPRESSION NINETEEN FORECAST/ADVISORY NUMBER 2 NWS NATIONAL HURRICANE CENTER MIAMI FL AL192017 1500 UTC MON NOV 06 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL DEPRESSION CENTER LOCATED NEAR 29.5N 50.4W AT 06/1500Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 15 DEGREES AT 3 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1013 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 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 29.5N 50.4W AT 06/1500Z AT 06/1200Z CENTER WAS LOCATED NEAR 29.3N 50.5W FORECAST VALID 07/0000Z 30.8N 50.2W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 0NE 40SE 0SW 0NW. FORECAST VALID 07/1200Z 33.6N 49.8W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 60SE 0SW 0NW. FORECAST VALID 08/0000Z 37.3N 49.0W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 80NE 100SE 0SW 0NW. FORECAST VALID 08/1200Z 41.4N 46.6W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 30SE 0SW 0NW. 34 KT... 90NE 120SE 30SW 0NW. FORECAST VALID 09/1200Z 51.0N 33.5W...POST-TROP/EXTRATROP MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 90NE 120SE 120SW 30NW. 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 10/1200Z 57.0N 14.0W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. OUTLOOK VALID 11/1200Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 29.5N 50.4W NEXT ADVISORY AT 06/2100Z $$ FORECASTER CANGIALOSI
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Tropical Depression Nineteen Wind Speed Probabilities Number 2
2017-11-06 15:33:09| National Hurricane Center (Atlantic)
Issued at 1500 UTC MON NOV 06 2017 000 FONT14 KNHC 061432 PWSAT4 TROPICAL DEPRESSION NINETEEN WIND SPEED PROBABILITIES NUMBER 2 NWS NATIONAL HURRICANE CENTER MIAMI FL AL192017 1500 UTC MON NOV 06 2017 AT 1500Z THE CENTER OF TROPICAL DEPRESSION NINETEEN WAS LOCATED NEAR LATITUDE 29.5 NORTH...LONGITUDE 50.4 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 12Z 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 12Z MON 00Z TUE 12Z TUE 00Z WED 12Z WED 12Z THU 12Z FRI PERIODS TO TO TO TO TO TO TO 00Z TUE 12Z TUE 00Z WED 12Z WED 12Z THU 12Z FRI 12Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER CANGIALOSI
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