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Tropical Storm Wilfred Forecast Discussion Number 5
2020-09-19 16:50:32| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Sat Sep 19 2020 000 WTNT43 KNHC 191450 TCDAT3 Tropical Storm Wilfred Discussion Number 5 NWS National Hurricane Center Miami FL AL232020 1100 AM AST Sat Sep 19 2020 Wilfred still consists of a very small low-level circulation embedded within an elongated area of low pressure. There has been a bit of an increase in deep convection near/over the estimated center during the past few hours, and the intensity remains 35 kt based on the latest Dvorak classifications from TAFB and SAB and UW-CIMSS SATCON. Wilfred will be moving over SSTs of around 28C but will experience a gradual increase in westerly shear during the next 24 to 36 hours as an upper-level trough amplifies to the northwest, and this should result in little change in strength during that time. Beyond that time, the cyclone moves into a drier and more stable airmass, which should result in the system becoming a remnant low and dissipating in 60 to 72 hours. The new NHC intensity forecast is close to the latest IVCN consensus. The initial motion estimate based on the latest satellite fixes is 285/12. Wilfred should continue moving generally west- northwestward for the next 24 to 36 hours and then turn more westward by 48 h as it becomes a shallower system. The new NHC track forecast is a bit faster than the previous one and has been adjusted farther south at 36 h and beyond, trending toward the latest consensus aids. FORECAST POSITIONS AND MAX WINDS INIT 19/1500Z 13.4N 38.1W 35 KT 40 MPH 12H 20/0000Z 14.2N 40.2W 35 KT 40 MPH 24H 20/1200Z 15.2N 43.1W 35 KT 40 MPH 36H 21/0000Z 15.9N 45.8W 35 KT 40 MPH 48H 21/1200Z 16.2N 48.0W 30 KT 35 MPH 60H 22/0000Z 16.3N 49.8W 25 KT 30 MPH...POST-TROP/REMNT LOW 72H 22/1200Z...DISSIPATED $$ Forecaster Brennan
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Tropical Storm Wilfred Wind Speed Probabilities Number 5
2020-09-19 16:50:04| National Hurricane Center (Atlantic)
Issued at 1500 UTC SAT SEP 19 2020 000 FONT13 KNHC 191449 PWSAT3 TROPICAL STORM WILFRED WIND SPEED PROBABILITIES NUMBER 5 NWS NATIONAL HURRICANE CENTER MIAMI FL AL232020 1500 UTC SAT SEP 19 2020 AT 1500Z THE CENTER OF TROPICAL STORM WILFRED WAS LOCATED NEAR LATITUDE 13.4 NORTH...LONGITUDE 38.1 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 35 KTS...40 MPH...65 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 12Z SAT AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 12Z SAT 00Z SUN 12Z SUN 00Z MON 12Z MON 12Z TUE 12Z WED PERIODS TO TO TO TO TO TO TO 00Z SUN 12Z SUN 00Z MON 12Z MON 12Z TUE 12Z WED 12Z THU FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER BRENNAN
Tropical Storm Wilfred Forecast Advisory Number 5
2020-09-19 16:49:34| National Hurricane Center (Atlantic)
Issued at 1500 UTC SAT SEP 19 2020 000 WTNT23 KNHC 191449 TCMAT3 TROPICAL STORM WILFRED FORECAST/ADVISORY NUMBER 5 NWS NATIONAL HURRICANE CENTER MIAMI FL AL232020 1500 UTC SAT SEP 19 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 13.4N 38.1W AT 19/1500Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 30NE 60SE 30SW 0NW. 12 FT SEAS.. 30NE 30SE 0SW 30NW. 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 13.4N 38.1W AT 19/1500Z AT 19/1200Z CENTER WAS LOCATED NEAR 13.1N 37.4W FORECAST VALID 20/0000Z 14.2N 40.2W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 40SE 0SW 30NW. FORECAST VALID 20/1200Z 15.2N 43.1W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 30SE 0SW 40NW. FORECAST VALID 21/0000Z 15.9N 45.8W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 40NE 0SE 0SW 30NW. FORECAST VALID 21/1200Z 16.2N 48.0W MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 22/0000Z 16.3N 49.8W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 22/1200Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.4N 38.1W NEXT ADVISORY AT 19/2100Z $$ FORECASTER BRENNAN
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Tropical Storm Beta Graphics
2020-09-19 13:55:14| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sat, 19 Sep 2020 11:55:14 GMT Wind Speed Probabilities last updated Sat, 19 Sep 2020 09:33:29 GMT
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Summary for Tropical Storm Beta (AT2/AL222020)
2020-09-19 13:53:01| National Hurricane Center (Atlantic)
...AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INVESTIGATING BETA... As of 7:00 AM CDT Sat Sep 19 the center of Beta was located near 26.5, -92.4 with movement N at 8 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 60 mph.
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