je.st

Home › hurricane

Tag: hurricane

Hurricane Sam Wind Speed Probabilities Number 47

2021-10-04 10:42:29| National Hurricane Center (Atlantic)

Issued at 0900 UTC MON OCT 04 2021 000 FONT13 KNHC 040842 PWSAT3 HURRICANE SAM WIND SPEED PROBABILITIES NUMBER 47 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 0900 UTC MON OCT 04 2021 AT 0900Z THE CENTER OF HURRICANE SAM WAS LOCATED NEAR LATITUDE 40.8 NORTH...LONGITUDE 48.7 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 06Z MON 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 MON 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI PERIODS TO TO TO TO TO TO TO 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI 06Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT HIBERNIA OILFD 34 4 6(10) 2(12) X(12) X(12) X(12) X(12) $$ FORECASTER STEWART

Tags: number speed sam wind

Summary for Hurricane Sam (AT3/AL182021)

2021-10-04 10:41:54| National Hurricane Center (Atlantic)

...SAM NORTH OF THE GULF STREAM AND EXPECTED TO WEAKEN SOON... ...FORECAST TO BECOME POST-TROPICAL BY EARLY TUESDAY... As of 5:00 AM AST Mon Oct 4 the center of Sam was located near 40.8, -48.7 with movement NE at 30 mph. The minimum central pressure was 957 mb with maximum sustained winds of about 105 mph.

Tags: summary sam hurricane at3al182021

Hurricane Sam Public Advisory Number 47

2021-10-04 10:41:54| National Hurricane Center (Atlantic)

Issued at 500 AM AST Mon Oct 04 2021 000 WTNT33 KNHC 040841 TCPAT3 BULLETIN Hurricane Sam Advisory Number 47 NWS National Hurricane Center Miami FL AL182021 500 AM AST Mon Oct 04 2021 ...SAM NORTH OF THE GULF STREAM AND EXPECTED TO WEAKEN SOON... ...FORECAST TO BECOME POST-TROPICAL BY EARLY TUESDAY... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...40.8N 48.7W ABOUT 465 MI...745 KM SSE OF CAPE RACE NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...NE OR 45 DEGREES AT 30 MPH...48 KM/H MINIMUM CENTRAL PRESSURE...957 MB...28.26 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 40.8 North, longitude 48.7 West. Sam is moving toward the northeast near 30 mph (48 km/h). A northeastward motion at a faster forward speed is expected over the next couple of days. The cyclone is forecast to slow down over the far north Atlantic southwest of Iceland around midweek. Maximum sustained winds remain near 105 mph (165 km/h) with higher gusts. Gradual weakening is forecast during the next few days, and Sam is expected to transition into a powerful post-tropical cyclone by early Tuesday. Sam is a large hurricane. Hurricane-force winds extend outward up to 70 miles (110 km) from the center and tropical-storm-force winds extend outward up to 255 miles (405 km). The estimated minimum central pressure is 957 mb (28.26 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Sam can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC, and on the web at hurricanes.gov/graphics_at3.shtml?key_messages. SURF: Swells generated by Sam will impact the northern Leeward Islands, the Greater Antilles, the Bahamas, the eastern United States and Atlantic Canada for the next couple of days. 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 Stewart

Tags: number public sam advisory

Hurricane Sam Forecast Advisory Number 47

2021-10-04 10:41:54| National Hurricane Center (Atlantic)

Issued at 0900 UTC MON OCT 04 2021 000 WTNT23 KNHC 040841 TCMAT3 HURRICANE SAM FORECAST/ADVISORY NUMBER 47 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182021 0900 UTC MON OCT 04 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. HURRICANE CENTER LOCATED NEAR 40.8N 48.7W AT 04/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 45 DEGREES AT 26 KT ESTIMATED MINIMUM CENTRAL PRESSURE 957 MB EYE DIAMETER 20 NM MAX SUSTAINED WINDS 90 KT WITH GUSTS TO 110 KT. 64 KT....... 0NE 60SE 50SW 0NW. 50 KT....... 90NE 90SE 100SW 70NW. 34 KT.......220NE 220SE 220SW 210NW. 12 FT SEAS..350NE 360SE 450SW 330NW. 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 40.8N 48.7W AT 04/0900Z AT 04/0600Z CENTER WAS LOCATED NEAR 39.9N 49.9W FORECAST VALID 04/1800Z 43.7N 45.0W MAX WIND 80 KT...GUSTS 100 KT. 64 KT... 40NE 50SE 40SW 0NW. 50 KT... 90NE 110SE 100SW 80NW. 34 KT...220NE 230SE 270SW 220NW. FORECAST VALID 05/0600Z 47.8N 41.5W...POST-TROP/EXTRATROP MAX WIND 75 KT...GUSTS 90 KT. 64 KT... 40NE 40SE 40SW 0NW. 50 KT... 90NE 120SE 100SW 50NW. 34 KT...240NE 280SE 310SW 230NW. FORECAST VALID 05/1800Z 50.1N 39.3W...POST-TROP/EXTRATROP MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 40NE 40SE 40SW 0NW. 50 KT... 80NE 140SE 90SW 80NW. 34 KT...280NE 350SE 400SW 290NW. FORECAST VALID 06/0600Z 51.0N 35.8W...POST-TROP/EXTRATROP MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 60NE 110SE 70SW 50NW. 34 KT...290NE 350SE 380SW 330NW. FORECAST VALID 06/1800Z 52.8N 31.2W...POST-TROP/EXTRATROP MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 60NE 50SE 40SW 60NW. 34 KT...210NE 290SE 310SW 180NW. FORECAST VALID 07/0600Z 56.0N 28.0W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 60NE 60SE 0SW 0NW. 34 KT...220NE 260SE 200SW 220NW. 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 08/0600Z 60.6N 29.3W...POST-TROP/EXTRATROP MAX WIND 45 KT...GUSTS 55 KT. OUTLOOK VALID 09/0600Z 61.5N 30.0W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 40.8N 48.7W NEXT ADVISORY AT 04/1500Z $$ FORECASTER STEWART

Tags: number sam advisory forecast