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Tropical Storm Victor Forecast Advisory Number 8
2021-10-01 10:41:51| National Hurricane Center (Atlantic)
Issued at 0900 UTC FRI OCT 01 2021 000 WTNT25 KNHC 010841 TCMAT5 TROPICAL STORM VICTOR FORECAST/ADVISORY NUMBER 8 NWS NATIONAL HURRICANE CENTER MIAMI FL AL202021 0900 UTC FRI OCT 01 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 11.7N 32.3W AT 01/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 13 KT ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 50NE 0SE 0SW 50NW. 34 KT.......140NE 90SE 0SW 100NW. 12 FT SEAS..150NE 90SE 45SW 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 11.7N 32.3W AT 01/0900Z AT 01/0600Z CENTER WAS LOCATED NEAR 11.4N 31.7W FORECAST VALID 01/1800Z 12.4N 33.6W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 0SE 0SW 50NW. 34 KT...140NE 80SE 30SW 100NW. FORECAST VALID 02/0600Z 13.4N 35.3W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 0SE 0SW 50NW. 34 KT...140NE 80SE 30SW 100NW. FORECAST VALID 02/1800Z 14.9N 36.8W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 0SE 0SW 0NW. 34 KT...120NE 70SE 30SW 80NW. FORECAST VALID 03/0600Z 16.7N 38.6W MAX WIND 45 KT...GUSTS 55 KT. 34 KT...100NE 60SE 20SW 70NW. FORECAST VALID 03/1800Z 19.0N 40.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 80NE 60SE 0SW 60NW. FORECAST VALID 04/0600Z 21.0N 42.0W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 50SE 0SW 50NW. 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 05/0600Z 24.0N 44.0W MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 06/0600Z 28.0N 45.0W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.7N 32.3W NEXT ADVISORY AT 01/1500Z $$ FORECASTER STEWART
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Tropical Storm Victor Wind Speed Probabilities Number 8
2021-10-01 10:41:51| National Hurricane Center (Atlantic)
Issued at 0900 UTC FRI OCT 01 2021 000 FONT15 KNHC 010841 PWSAT5 TROPICAL STORM VICTOR WIND SPEED PROBABILITIES NUMBER 8 NWS NATIONAL HURRICANE CENTER MIAMI FL AL202021 0900 UTC FRI OCT 01 2021 AT 0900Z THE CENTER OF TROPICAL STORM VICTOR WAS LOCATED NEAR LATITUDE 11.7 NORTH...LONGITUDE 32.3 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 50 KTS...60 MPH...95 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 06Z FRI AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 06Z FRI 18Z FRI 06Z SAT 18Z SAT 06Z SUN 06Z MON 06Z TUE PERIODS TO TO TO TO TO TO TO 18Z FRI 06Z SAT 18Z SAT 06Z SUN 06Z MON 06Z TUE 06Z WED FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER STEWART
Tropical Storm Victor Wind Speed Probabilities Number 7
2021-10-01 04:38:43| National Hurricane Center (Atlantic)
Issued at 0300 UTC FRI OCT 01 2021 000 FONT15 KNHC 010238 PWSAT5 TROPICAL STORM VICTOR WIND SPEED PROBABILITIES NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL AL202021 0300 UTC FRI OCT 01 2021 AT 0300Z THE CENTER OF TROPICAL STORM VICTOR WAS LOCATED NEAR LATITUDE 10.6 NORTH...LONGITUDE 30.7 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 50 KTS...60 MPH...95 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 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 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 FRI 12Z FRI 00Z SAT 12Z SAT 00Z SUN 00Z MON 00Z TUE PERIODS TO TO TO TO TO TO TO 12Z FRI 00Z SAT 12Z SAT 00Z SUN 00Z MON 00Z TUE 00Z WED FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER BEVEN
Summary for Tropical Storm Victor (AT5/AL202021)
2021-10-01 04:38:19| National Hurricane Center (Atlantic)
...VICTOR STRENGTHENS OVER THE TROPICAL EASTERN ATLANTIC... As of 11:00 PM AST Thu Sep 30 the center of Victor was located near 10.6, -30.7 with movement WNW at 12 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 60 mph.
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Tropical Storm Victor Forecast Discussion Number 6
2021-09-30 22:43:09| National Hurricane Center (Atlantic)
Issued at 500 PM AST Thu Sep 30 2021 000 WTNT45 KNHC 302042 TCDAT5 Tropical Storm Victor Discussion Number 6 NWS National Hurricane Center Miami FL AL202021 500 PM AST Thu Sep 30 2021 Victor has been relatively steady in strength during the past several hours. Satellite images continue to show that the storm has a large circulation with numerous curved bands surrounding the center. However, recent microwave images indicate that the cyclone has yet to develop a well-defined inner core, which is likely why the system has not strengthened much despite the favorable environmental conditions. The Dvorak classifications are again unchanged and range from 35 to 45 kt, and on this basis, the initial intensity is held at 40 kt. Victor is still moving west-northwestward, or 290 degrees, at 12 kt. The storm is forecast to continue on that same general track for about another day as it remains on the south side of a deep-layer ridge over the subtropical eastern Atlantic. By late Friday, a mid- to upper-level low is expected to form over the central Atlantic, and that feature should erode the western portion of the ridge. As a result, Victor is expected to turn northwestward by the weekend and then northward by early next week when it is forecast to move in the flow between the ridge and the low. The GFS has shifted westward this cycle and is now not far from the ECMWF track. The new NHC forecast track is nudged westward toward a consensus of the GFS, ECMWF, UKMET, and HMON models. The standard consensus aids could be too far to the east since the latest run of the HWRF, which is a member of those models, is a significant outlier to the east. As mentioned above, although the storm has been in favorable conditions for strengthening during the past day or so, it has not taken full advantage likely due to its broad structure. The favorable environment for Victor should persist for about another 24 hours, so gradual strengthening is possible during that time period. However, by the weekend, the models show Victor moving into a region of moderate to strong southwesterly shear and a progressively drier airmass. These negative factors for the storm along with slightly cooler SSTs should cause Victor to lose strength this weekend and early next week. In fact, some of the models suggest that Victor could dissipate by the end of the forecast period. The new NHC intensity forecast is again a little lower than the previous one, trending toward the HCCA, IVCN, and IVDR consensus aids. FORECAST POSITIONS AND MAX WINDS INIT 30/2100Z 9.9N 30.0W 40 KT 45 MPH 12H 01/0600Z 10.6N 31.4W 45 KT 50 MPH 24H 01/1800Z 11.6N 33.1W 55 KT 65 MPH 36H 02/0600Z 12.9N 34.6W 50 KT 60 MPH 48H 02/1800Z 14.5N 36.2W 45 KT 50 MPH 60H 03/0600Z 16.4N 38.0W 40 KT 45 MPH 72H 03/1800Z 18.9N 40.0W 35 KT 40 MPH 96H 04/1800Z 23.6N 42.7W 30 KT 35 MPH 120H 05/1800Z 28.0N 42.9W 30 KT 35 MPH $$ Forecaster Cangialosi
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