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Hurricane Sam Public Advisory Number 15
2021-09-26 10:47:14| National Hurricane Center (Atlantic)
Issued at 500 AM AST Sun Sep 26 2021 000 WTNT33 KNHC 260847 TCPAT3 BULLETIN Hurricane Sam Advisory Number 15 NWS National Hurricane Center Miami FL AL182021 500 AM AST Sun Sep 26 2021 ...SAM REMAINS A CATEGORY FOUR HURRICANE... ...FLUCTUATIONS IN INTENSITY LIKELY DURING THE NEXT DAY OR SO... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...13.8N 49.7W ABOUT 940 MI...1510 KM ESE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...943 MB...27.85 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 AM AST (0900 UTC), the center of Hurricane Sam was located near latitude 13.8 North, longitude 49.7 West. Sam is moving toward the west-northwest near 8 mph (13 km/h). This general motion is expected to continue today, followed by a turn toward the northwest on Monday. Then, a northwestward motion is forecast to continue through midweek. Maximum sustained winds are near 145 mph (230 km/h) with higher gusts. Sam is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are expected during the next day or so. Thereafter, some slow weakening is forecast. Sam is a small hurricane. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure is 943 mb (27.85 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Sam are forecast to reach the Lesser Antilles early this week. These swells could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Reinhart
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Hurricane Sam Forecast Advisory Number 15
2021-09-26 10:46:43| National Hurricane Center (Atlantic)
Issued at 0900 UTC SUN SEP 26 2021 207 WTNT23 KNHC 260846 TCMAT3 HURRICANE SAM FORECAST/ADVISORY NUMBER 15 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 0900 UTC SUN SEP 26 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 13.8N 49.7W AT 26/0900Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 943 MB EYE DIAMETER 10 NM MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 150 KT. 64 KT....... 25NE 20SE 15SW 20NW. 50 KT....... 40NE 30SE 20SW 30NW. 34 KT....... 80NE 80SE 40SW 60NW. 12 FT SEAS..150NE 90SE 120SW 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 13.8N 49.7W AT 26/0900Z AT 26/0600Z CENTER WAS LOCATED NEAR 13.7N 49.4W FORECAST VALID 26/1800Z 14.3N 50.6W MAX WIND 125 KT...GUSTS 150 KT. 64 KT... 25NE 20SE 15SW 20NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 90NE 80SE 40SW 70NW. FORECAST VALID 27/0600Z 15.0N 51.8W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 25NE 20SE 15SW 20NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 80SE 50SW 70NW. FORECAST VALID 27/1800Z 15.8N 52.9W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 30NE 25SE 20SW 25NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 90SE 60SW 80NW. FORECAST VALID 28/0600Z 16.6N 53.9W MAX WIND 115 KT...GUSTS 140 KT. 64 KT... 35NE 30SE 25SW 25NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 90SE 70SW 80NW. FORECAST VALID 28/1800Z 17.5N 55.0W MAX WIND 115 KT...GUSTS 140 KT. 50 KT... 50NE 50SE 40SW 40NW. 34 KT...100NE 90SE 70SW 80NW. FORECAST VALID 29/0600Z 18.4N 56.3W MAX WIND 115 KT...GUSTS 140 KT. 50 KT... 60NE 50SE 40SW 40NW. 34 KT...100NE 90SE 70SW 90NW. 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 30/0600Z 20.8N 59.3W MAX WIND 110 KT...GUSTS 135 KT. OUTLOOK VALID 01/0600Z 24.5N 62.0W MAX WIND 110 KT...GUSTS 135 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.8N 49.7W NEXT ADVISORY AT 26/1500Z $$ FORECASTER REINHART
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Hurricane Sam Public Advisory Number 14
2021-09-26 04:49:09| National Hurricane Center (Atlantic)
Issued at 1100 PM AST Sat Sep 25 2021 000 WTNT33 KNHC 260249 TCPAT3 BULLETIN Hurricane Sam Advisory Number 14 NWS National Hurricane Center Miami FL AL182021 1100 PM AST Sat Sep 25 2021 ...NOAA HURRICANE HUNTER AIRCRAFT FINDS THAT SAM HAS CONTINUED TO RAPIDLY INTENSIFY... ...FLUCTUATIONS IN INTENSITY LIKELY DURING THE NEXT DAY OR SO... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...13.5N 49.0W ABOUT 990 MI...1595 KM ESE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...943 MB...27.85 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 Sam was located near latitude 13.5 North, longitude 49.0 West. Sam is moving toward the west-northwest near 8 mph (13 km/h), and this general motion is forecast to continue through Sunday. A turn toward the northwest is expected on Monday. Maximum sustained winds are near 145 mph (230 km/h) with higher gusts. Sam is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Fluctuations in intensity are likely into early next week. Sam remains a small hurricane. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 105 miles (165 km). The estimated minimum central pressure based on data from the NOAA reconnaissance aircraft is 943 mb (27.85 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Sam are forecast to reach the Lesser Antilles early next week. These swells could 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 Stewart
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Hurricane Sam Forecast Advisory Number 14
2021-09-26 04:47:09| National Hurricane Center (Atlantic)
Issued at 0300 UTC SUN SEP 26 2021 000 WTNT23 KNHC 260247 TCMAT3 HURRICANE SAM FORECAST/ADVISORY NUMBER 14 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 0300 UTC SUN SEP 26 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 13.5N 49.0W AT 26/0300Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 943 MB EYE DIAMETER 10 NM MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 150 KT. 64 KT....... 25NE 20SE 15SW 20NW. 50 KT....... 40NE 30SE 20SW 30NW. 34 KT....... 80NE 90SE 40SW 60NW. 12 FT SEAS..135NE 90SE 120SW 135NW. 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 13.5N 49.0W AT 26/0300Z AT 26/0000Z CENTER WAS LOCATED NEAR 13.4N 48.7W FORECAST VALID 26/1200Z 14.0N 49.9W MAX WIND 130 KT...GUSTS 160 KT. 64 KT... 25NE 20SE 15SW 20NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 80NE 90SE 40SW 60NW. FORECAST VALID 27/0000Z 14.7N 51.0W MAX WIND 125 KT...GUSTS 150 KT. 64 KT... 25NE 20SE 15SW 20NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 90NE 90SE 50SW 70NW. FORECAST VALID 27/1200Z 15.4N 52.1W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 30NE 25SE 25SW 25NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 90SE 60SW 70NW. FORECAST VALID 28/0000Z 16.3N 53.2W MAX WIND 120 KT...GUSTS 145 KT. 64 KT... 30NE 25SE 25SW 25NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 90SE 60SW 80NW. FORECAST VALID 28/1200Z 17.1N 54.3W MAX WIND 115 KT...GUSTS 140 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT... 90NE 90SE 60SW 80NW. FORECAST VALID 29/0000Z 18.0N 55.6W MAX WIND 115 KT...GUSTS 140 KT. 50 KT... 50NE 50SE 40SW 40NW. 34 KT...100NE 90SE 70SW 90NW. 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 30/0000Z 20.1N 58.5W MAX WIND 110 KT...GUSTS 135 KT. OUTLOOK VALID 01/0000Z 23.7N 61.4W MAX WIND 110 KT...GUSTS 135 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.5N 49.0W NEXT ADVISORY AT 26/0900Z $$ FORECASTER STEWART
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Post-Tropical Cyclone Teresa Public Advisory Number 5
2021-09-25 22:41:59| National Hurricane Center (Atlantic)
Issued at 500 PM AST Sat Sep 25 2021 000 WTNT34 KNHC 252041 TCPAT4 BULLETIN Post-Tropical Cyclone Teresa Advisory Number 5 NWS National Hurricane Center Miami FL AL192021 500 PM AST Sat Sep 25 2021 ...TERESA DEGENERATES INTO A REMNANT LOW... ...THIS IS THE FINAL ADVISORY... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...34.4N 64.3W ABOUT 150 MI...240 KM N OF BERMUDA MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...E OR 90 DEGREES AT 5 MPH...7 KM/H MINIMUM CENTRAL PRESSURE...1010 MB...29.83 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Post-Tropical Cyclone Teresa was located near latitude 34.4 North, longitude 64.3 West. The post-tropical cyclone is moving toward the east near 5 mph (7 km/h). A turn to the northeast is expected this evening. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. The remnant low is expected to dissipate Sunday morning. The estimated minimum central pressure is 1010 mb (29.83 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on Teresa. Additional information on this system can be found in high seas forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1 and WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Hagen/Latto
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