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Hurricane Paulette Forecast Discussion Number 33
2020-09-15 04:35:49| National Hurricane Center (Atlantic)
Issued at 1100 PM AST Mon Sep 14 2020 000 WTNT42 KNHC 150235 TCDAT2 Hurricane Paulette Discussion Number 33 NWS National Hurricane Center Miami FL AL172020 1100 PM AST Mon Sep 14 2020 Paulette's cloud pattern has degraded during the past few hours, and recent microwave imagery suggests that the eyewall of the hurricane was at least for a time open to the south. A larger mostly closed ring of convection was also present, indicating that Paulette may be going through an eyewall replacement cycle. Satellite-based current intensity estimates range from 65 to 102 kt, but have generally decreased since the last advisory. The intensity estimate remains 90 kt at this time, but there is a high degree of uncertainty in this assessment. Assuming Paulette can maintain a well-defined inner core, either through the completion of an eyewall replacement cycle or redevelopment of convection in the southern eyewall, it should have an opportunity to strengthen during the next 24 h. The intensity guidance is not quite as bullish anymore, so the intensity forecast has been lowered slightly, but it is still above the intensity consensus through 36 h. Paulette could begin to lose tropical characteristics around that time and rapid weakening is expected as a result. The NHC forecast conservatively shows Paulette becoming fully post-tropical in 72 h, but there are indications from the GFS simulated satellite imagery that it could complete its transition sooner. Paulette has turned northeastward and is accelerating, as predicted, with an initial motion estimate of 35/15 kt. The system will likely race generally east-northeastward for the next few days. A slower motion and eventual turn southeastward or even southward is expected near the end of the week when the cyclone encounters a large cut-off low over the eastern Atlantic, however it should be post-tropical by that time. The track guidance remains in excellent overall agreement overall, and NHC forecast is based heavily on TVCN and HCCA. The wind radii analysis and forecast were updated based on data from an ASCAT-A overpass at 0050 UTC. FORECAST POSITIONS AND MAX WINDS INIT 15/0300Z 35.7N 62.3W 90 KT 105 MPH 12H 15/1200Z 37.4N 59.6W 100 KT 115 MPH 24H 16/0000Z 39.8N 54.4W 105 KT 120 MPH 36H 16/1200Z 42.3N 48.2W 95 KT 110 MPH 48H 17/0000Z 44.6N 41.9W 75 KT 85 MPH 60H 17/1200Z 46.0N 37.3W 60 KT 70 MPH 72H 18/0000Z 45.8N 35.6W 45 KT 50 MPH...POST-TROP/EXTRATROP 96H 19/0000Z 43.0N 33.5W 35 KT 40 MPH...POST-TROP/EXTRATROP 120H 20/0000Z 39.0N 32.0W 35 KT 40 MPH...POST-TROP/EXTRATROP $$ Forecaster Zelinsky
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Summary for Hurricane Paulette (AT2/AL172020)
2020-09-15 04:35:18| National Hurricane Center (Atlantic)
...PAULETTE ACCELERATING NORTHEASTWARD... As of 11:00 PM AST Mon Sep 14 the center of Paulette was located near 35.7, -62.3 with movement NE at 17 mph. The minimum central pressure was 965 mb with maximum sustained winds of about 105 mph.
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Hurricane Paulette Public Advisory Number 33
2020-09-15 04:35:18| National Hurricane Center (Atlantic)
Issued at 1100 PM AST Mon Sep 14 2020 000 WTNT32 KNHC 150235 TCPAT2 BULLETIN Hurricane Paulette Advisory Number 33 NWS National Hurricane Center Miami FL AL172020 1100 PM AST Mon Sep 14 2020 ...PAULETTE ACCELERATING NORTHEASTWARD... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...35.7N 62.3W ABOUT 275 MI...440 KM NNE OF BERMUDA MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...NE OR 35 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...965 MB...28.50 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 Hurricane Paulette was located near latitude 35.7 North, longitude 62.3 West. Paulette is moving toward the northeast near 17 mph (28 km/h). A faster motion toward the northeast or east-northeast is expected for the next couple of days. Paulette is then forecast to slow down and turn eastward by late Thursday. Maximum sustained winds are near 105 mph (165 km/h) with higher gusts. Strengthening is possible Tuesday and early Wednesday. Rapid weakening is forecast to begin by late Wednesday and will likely continue through the rest of the week. Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 230 miles (370 km). The estimated minimum central pressure is 965 mb (28.50 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Paulette will continue to affect portions of Bermuda, the Bahamas, the Greater Antilles, and the east coast of the United States through Tuesday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. $$ Forecaster Zelinsky
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Hurricane Paulette Wind Speed Probabilities Number 33
2020-09-15 04:35:18| National Hurricane Center (Atlantic)
Issued at 0300 UTC TUE SEP 15 2020 000 FONT12 KNHC 150235 PWSAT2 HURRICANE PAULETTE WIND SPEED PROBABILITIES NUMBER 33 NWS NATIONAL HURRICANE CENTER MIAMI FL AL172020 0300 UTC TUE SEP 15 2020 AT 0300Z THE CENTER OF HURRICANE PAULETTE WAS LOCATED NEAR LATITUDE 35.7 NORTH...LONGITUDE 62.3 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 90 KTS...105 MPH...165 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 TUE 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 TUE 12Z TUE 00Z WED 12Z WED 00Z THU 00Z FRI 00Z SAT PERIODS TO TO TO TO TO TO TO 12Z TUE 00Z WED 12Z WED 00Z THU 00Z FRI 00Z SAT 00Z SUN FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT SANTA CRUZ AZO 34 X X( X) X( X) X( X) X( X) 3( 3) 10(13) HIBERNIA OILFD 34 X X( X) 2( 2) 4( 6) 1( 7) X( 7) X( 7) $$ FORECASTER ZELINSKY
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Hurricane Paulette Forecast Advisory Number 33
2020-09-15 04:35:16| National Hurricane Center (Atlantic)
Issued at 0300 UTC TUE SEP 15 2020 630 WTNT22 KNHC 150235 TCMAT2 HURRICANE PAULETTE FORECAST/ADVISORY NUMBER 33 NWS NATIONAL HURRICANE CENTER MIAMI FL AL172020 0300 UTC TUE SEP 15 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 35.7N 62.3W AT 15/0300Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 15 KT ESTIMATED MINIMUM CENTRAL PRESSURE 965 MB MAX SUSTAINED WINDS 90 KT WITH GUSTS TO 110 KT. 64 KT....... 50NE 50SE 50SW 50NW. 50 KT....... 80NE 100SE 70SW 70NW. 34 KT.......150NE 200SE 130SW 120NW. 12 FT SEAS..360NE 300SE 300SW 360NW. 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 35.7N 62.3W AT 15/0300Z AT 15/0000Z CENTER WAS LOCATED NEAR 35.1N 63.3W FORECAST VALID 15/1200Z 37.4N 59.6W MAX WIND 100 KT...GUSTS 120 KT. 64 KT... 50NE 50SE 50SW 50NW. 50 KT... 80NE 80SE 70SW 70NW. 34 KT...150NE 200SE 150SW 150NW. FORECAST VALID 16/0000Z 39.8N 54.4W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 50NE 40SE 40SW 50NW. 50 KT... 90NE 90SE 80SW 80NW. 34 KT...180NE 200SE 170SW 180NW. FORECAST VALID 16/1200Z 42.3N 48.2W MAX WIND 95 KT...GUSTS 115 KT. 64 KT... 50NE 50SE 40SW 50NW. 50 KT... 90NE 90SE 80SW 80NW. 34 KT...190NE 200SE 170SW 190NW. FORECAST VALID 17/0000Z 44.6N 41.9W MAX WIND 75 KT...GUSTS 90 KT. 64 KT... 50NE 50SE 40SW 50NW. 50 KT... 90NE 80SE 80SW 80NW. 34 KT...200NE 200SE 150SW 200NW. FORECAST VALID 17/1200Z 46.0N 37.3W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 70NE 50SE 50SW 70NW. 34 KT...180NE 170SE 170SW 200NW. FORECAST VALID 18/0000Z 45.8N 35.6W...POST-TROP/EXTRATROP MAX WIND 45 KT...GUSTS 55 KT. 34 KT...130NE 130SE 140SW 150NW. 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 19/0000Z 43.0N 33.5W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. OUTLOOK VALID 20/0000Z 39.0N 32.0W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 35.7N 62.3W NEXT ADVISORY AT 15/0900Z $$ FORECASTER ZELINSKY
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