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Tropical Storm Victor Public Advisory Number 2
2021-09-29 22:43:16| National Hurricane Center (Atlantic)
Issued at 800 PM CVT Wed Sep 29 2021 000 WTNT35 KNHC 292043 TCPAT5 BULLETIN Tropical Storm Victor Advisory Number 2 NWS National Hurricane Center Miami FL AL202021 800 PM CVT Wed Sep 29 2021 ...VICTOR FORMS OVER THE EASTERN TROPICAL ATLANTIC... SUMMARY OF 800 PM CVT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...8.3N 25.5W ABOUT 540 MI...870 KM S OF THE CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 290 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 OUTLOOK ---------------------- At 800 PM CVT (2100 UTC), the center of Tropical Storm Victor was located near latitude 8.3 North, longitude 25.5 West. Victor is moving toward the west-northwest near 13 mph (20 km/h) and this motion is expected to continue during the next couple of days, followed by a turn to the northwest. Maximum sustained winds have increased to near 40 mph (65 km/h) with higher gusts. Steady strengthening is forecast, and Victor is expected to become a hurricane in a day or two. Tropical-storm-force winds extend outward up to 60 miles (95 km) north of the center. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 200 AM CVT. $$ Forecaster Cangialosi
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Tropical Storm Victor Wind Speed Probabilities Number 2
2021-09-29 22:43:16| National Hurricane Center (Atlantic)
Issued at 2100 UTC WED SEP 29 2021 000 FONT15 KNHC 292043 PWSAT5 TROPICAL STORM VICTOR WIND SPEED PROBABILITIES NUMBER 2 NWS NATIONAL HURRICANE CENTER MIAMI FL AL202021 2100 UTC WED SEP 29 2021 AT 2100Z THE CENTER OF TROPICAL STORM VICTOR WAS LOCATED NEAR LATITUDE 8.3 NORTH...LONGITUDE 25.5 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 35 KTS...40 MPH...65 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 18Z WED AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 18Z WED 06Z THU 18Z THU 06Z FRI 18Z FRI 18Z SAT 18Z SUN PERIODS TO TO TO TO TO TO TO 06Z THU 18Z THU 06Z FRI 18Z FRI 18Z SAT 18Z SUN 18Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER CANGIALOSI
Tropical Storm Victor Forecast Advisory Number 2
2021-09-29 22:42:51| National Hurricane Center (Atlantic)
Issued at 2100 UTC WED SEP 29 2021 000 WTNT25 KNHC 292042 TCMAT5 TROPICAL STORM VICTOR FORECAST/ADVISORY NUMBER 2 NWS NATIONAL HURRICANE CENTER MIAMI FL AL202021 2100 UTC WED SEP 29 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 8.3N 25.5W AT 29/2100Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 50NE 0SE 0SW 40NW. 12 FT SEAS..120NE 90SE 0SW 0NW. 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 8.3N 25.5W AT 29/2100Z AT 29/1800Z CENTER WAS LOCATED NEAR 8.1N 25.1W FORECAST VALID 30/0600Z 8.8N 26.9W MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 60NE 40SE 20SW 50NW. FORECAST VALID 30/1800Z 9.5N 28.9W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 30NE 0SE 0SW 0NW. 34 KT... 90NE 70SE 30SW 60NW. FORECAST VALID 01/0600Z 10.3N 30.8W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 15NE 0SE 0SW 0NW. 50 KT... 30NE 20SE 10SW 30NW. 34 KT...100NE 70SE 40SW 80NW. FORECAST VALID 01/1800Z 11.4N 32.4W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 15NE 0SE 0SW 15NW. 50 KT... 30NE 20SE 20SW 30NW. 34 KT...100NE 70SE 40SW 80NW. FORECAST VALID 02/0600Z 12.8N 34.1W MAX WIND 70 KT...GUSTS 85 KT. 50 KT... 30NE 20SE 20SW 30NW. 34 KT...100NE 80SE 40SW 80NW. FORECAST VALID 02/1800Z 14.7N 35.8W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 30NE 20SE 0SW 30NW. 34 KT...100NE 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 03/1800Z 19.3N 38.9W MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 04/1800Z 24.9N 40.9W MAX WIND 40 KT...GUSTS 50 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 8.3N 25.5W NEXT ADVISORY AT 30/0300Z $$ FORECASTER CANGIALOSI
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Hurricane Sam Wind Speed Probabilities Number 28
2021-09-29 16:42:08| National Hurricane Center (Atlantic)
Issued at 1500 UTC WED SEP 29 2021 000 FONT13 KNHC 291441 PWSAT3 HURRICANE SAM WIND SPEED PROBABILITIES NUMBER 28 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 1500 UTC WED SEP 29 2021 AT 1500Z THE CENTER OF HURRICANE SAM WAS LOCATED NEAR LATITUDE 19.4 NORTH...LONGITUDE 57.0 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 115 KTS...130 MPH...215 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 WED 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 WED 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN PERIODS TO TO TO TO TO TO TO 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN 12Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT CAPE RACE NFLD 34 X X( X) X( X) X( X) X( X) X( X) 3( 3) SABLE ISLAND 34 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) BERMUDA 34 X X( X) X( X) 1( 1) 22(23) 5(28) X(28) BERMUDA 50 X X( X) X( X) X( X) 4( 4) 1( 5) X( 5) BERMUDA 64 X X( X) X( X) X( X) 1( 1) 1( 2) X( 2) BARBUDA 34 1 2( 3) X( 3) X( 3) X( 3) X( 3) X( 3) $$ FORECASTER PASCH
Hurricane Sam Forecast Discussion Number 28
2021-09-29 16:42:08| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Wed Sep 29 2021 000 WTNT43 KNHC 291441 TCDAT3 Hurricane Sam Discussion Number 28 NWS National Hurricane Center Miami FL AL182021 1100 AM AST Wed Sep 29 2021 Sam has a well-organized cloud pattern on satellite imagery, with a 90 n mi-wide Central Dense Overcast surrounded by numerous convective banding features. Upper-level outflow has now become better established to the southeast of the hurricane. A NOAA Hurricane Hunter mission from a couple of hours ago reported a 20 n mi-wide diameter circular eye. The current intensity is held at 115 kt for this advisory, which is a little higher than the maximum winds observed in the earlier aircraft mission. However, since the estimated minimum central pressure of 949 is a little lower than it was earlier this morning and Sam's intensity has been fluctuating, it is considered prudent not to lower the winds at this time. An Air Force Hurricane Hunter aircraft is scheduled to investigate the hurricane soon and will provide another intensity estimate. Sam continues its slow northwestward trek with the current motion remaining near 310/8 kt. Sam should move northwestward and then northward around the western portion of the subtropical ridge over the eastern Atlantic during the next few days, and turn toward the north-northeast and northeast later in the forecast period. The track guidance models are in very good agreement through 72 hours or so, with some increase in model spread thereafter. This increase in spread is largely due to how Sam will interact with a strong mid-latitude trough moving through Atlantic Canada. Some of the guidance suggests that this trough could partially bypass the hurricane around the end of the period and beyond, but this is not yet clear. The current NHC forecast track is not much different from the previous one and is in good agreement with the dynamical model consensus, TVCA. The hurricane will continue to move over warm waters and in an environment of low vertical shear and diffluent upper-level flow for the next 1-2 days. Thus, it would not be surprising to soon see some restrengthening. The official intensity forecast is essentially a blend of the latest Decay-SHIPS and LGEM predictions, and is very similar to the previous NHC forecast. Sam is likely to remain a major hurricane into this weekend. Key Messages: 1. Large swells generated by Sam are affecting the Leeward Islands and will spread to portions of the Virgin Islands, Puerto Rico, Hispaniola, the Bahamas, and Bermuda by Thursday or Friday. Significant swells will likely reach the east coast of the United States and Atlantic Canada by the weekend. These swells will likely cause life-threatening surf and rip current conditions, and beachgoers and other interests along these coasts are urged to follow the advice of lifeguards and local officials through the upcoming weekend. FORECAST POSITIONS AND MAX WINDS INIT 29/1500Z 19.4N 57.0W 115 KT 130 MPH 12H 30/0000Z 20.3N 58.1W 120 KT 140 MPH 24H 30/1200Z 21.8N 59.6W 120 KT 140 MPH 36H 01/0000Z 23.9N 61.0W 120 KT 140 MPH 48H 01/1200Z 26.6N 61.8W 115 KT 130 MPH 60H 02/0000Z 29.4N 61.8W 110 KT 125 MPH 72H 02/1200Z 32.0N 60.9W 105 KT 120 MPH 96H 03/1200Z 36.2N 57.3W 90 KT 105 MPH 120H 04/1200Z 39.5N 53.0W 75 KT 85 MPH $$ Forecaster Pasch
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