Post-tropical Cyclone Sam at 51.0°N - 39.4°W

4 Oct 2021 - 21:00 UTC ...SAM RACING NORTHEASTWARD OVER THE NORTH ATLANTIC... ...EXPECTED TO TRANSITION INTO A POWERFUL POST-TROPICAL CYCLONE TONIGHT... As of 9:00 PM GMT Mon Oct 4 the center of Sam was located near 45.1, -42.5 with movement NE at 36 mph. The minimum central pressure was 965 mb with maximum sustained winds of about 90 mph.

4 Oct 2021 - 15:00 UTC ...SAM MOVING QUICKLY NORTHEASTWARD... ...FORECAST TO BECOME A POWERFUL POST-TROPICAL CYCLONE TONIGHT OR EARLY TUESDAY... As of 11:00 AM AST Mon Oct 4 the center of Sam was located near 42.6, -45.7 with movement NE at 32 mph. The minimum central pressure was 960 mb with maximum sustained winds of about 100 mph.

4 Oct 2021 - 9:00 UTC ...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.

4 Oct 2021 - 3:00 UTC ...SAM SLIGHTLY RE-STRENGTHENS OVER THE GULF STREAM... ...EXPECTED TO BECOME POST-TROPICAL BY EARLY TUESDAY... As of 11:00 PM AST Sun Oct 3 the center of Sam was located near 39.3, -51.2 with movement NE at 20 mph. The minimum central pressure was 957 mb with maximum sustained winds of about 105 mph.

3 Oct 2021 - 21:00 UTC ...SAM EXPANDING OVER THE OPEN NORTH ATLANTIC... ...EXPECTED TO BECOME A LARGE AND POWERFUL POST-TROPICAL LOW PRESSURE SYSTEM ON MONDAY... As of 5:00 PM AST Sun Oct 3 the center of Sam was located near 38.6, -52.8 with movement ENE at 16 mph. The minimum central pressure was 964 mb with maximum sustained winds of about 100 mph.

3 Oct 2021 - 15:00 UTC ...SAM MOVING NORTHEASTWARD OVER THE OPEN NORTH ATLANTIC... ...EXPECTED TO BECOME A LARGE AND POWERFUL POST-TROPICAL LOW PRESSURE SYSTEM ON MONDAY... As of 11:00 AM AST Sun Oct 3 the center of Sam was located near 37.7, -54.6 with movement NE at 16 mph. The minimum central pressure was 964 mb with maximum sustained winds of about 100 mph.

3 Oct 2021 - 9:00 UTC ...SAM CONTINUES TO WEAKEN AS IT MOVES NORTHEASTWARD OVER THE OPEN NORTH ATLANTIC... ...EXPECTED TO BECOME A LARGE AND POWERFUL POST-TROPICAL LOW PRESSURE SYSTEM ON MONDAY... As of 5:00 AM AST Sun Oct 3 the center of Sam was located near 37.3, -55.9 with movement NE at 17 mph. The minimum central pressure was 960 mb with maximum sustained winds of about 105 mph.

3 Oct 2021 - 3:00 UTC ...SAM GRADUALLY WEAKENING AS IT MOVES NORTHEASTWARD OVER THE OPEN ATLANTIC... As of 11:00 PM AST Sat Oct 2 the center of Sam was located near 36.4, -57.1 with movement NE at 16 mph. The minimum central pressure was 955 mb with maximum sustained winds of about 115 mph.

2 Oct 2021 - 21:00 UTC ...SAM GRADUALLY LOSING STRENGTH BUT GROWING IN SIZE... As of 5:00 PM AST Sat Oct 2 the center of Sam was located near 35.4, -58.2 with movement NE at 17 mph. The minimum central pressure was 950 mb with maximum sustained winds of about 125 mph.

2 Oct 2021 - 15:00 UTC ...STEADFAST SAM MAINTAINING CATEGORY 4 WINDS... As of 11:00 AM AST Sat Oct 2 the center of Sam was located near 33.9, -59.3 with movement NE at 17 mph. The minimum central pressure was 945 mb with maximum sustained winds of about 130 mph.

2 Oct 2021 - 9:00 UTC ...SAM NOW MOVING AWAY FROM BERMUDA... ...TROPICAL STORM WARNING DISCONTINUED FOR THE ISLAND... As of 5:00 AM AST Sat Oct 2 the center of Sam was located near 32.8, -60.5 with movement NNE at 17 mph. The minimum central pressure was 945 mb with maximum sustained winds of about 130 mph.

2 Oct 2021 - 6:00 UTC ...SAM'S CORE PASSING WELL TO THE EAST OF BERMUDA... ...AIR FORCE RESERVE HURRICANE HUNTERS FIND THAT THE HURRICANE HAS LOST SOME INTENSITY BUT STILL PLENTY POTENT... As of 2:00 AM AST Sat Oct 2 the center of Sam was located near 32.1, -61.1 with movement NNE at 17 mph. The minimum central pressure was 945 mb with maximum sustained winds of about 140 mph.

2 Oct 2021 - 3:00 UTC ...CORE OF SAM PASSING EAST-SOUTHEAST OF BERMUDA... ...SWELLS EXPECTED TO REACH THE EAST COAST OF THE U.S. AND ATLANTIC CANADA ON SATURDAY... As of 11:00 PM AST Fri Oct 1 the center of Sam was located near 31.4, -61.2 with movement NNE at 17 mph. The minimum central pressure was 940 mb with maximum sustained winds of about 145 mph.

2 Oct 2021 - 0:00 UTC ...CORE OF SAM NOW EAST-SOUTHEAST OF BERMUDA TONIGHT... ...SWELLS EXPECTED TO REACH THE EAST COAST OF THE U.S. AND ATLANTIC CANADA ON SATURDAY... As of 8:00 PM AST Fri Oct 1 the center of Sam was located near 30.7, -61.5 with movement N at 20 mph. The minimum central pressure was 937 mb with maximum sustained winds of about 150 mph.

1 Oct 2021 - 21:00 UTC ...CORE OF SAM FORECAST TO PASS WELL EAST OF BERMUDA TONIGHT... ...SWELLS EXPECTED TO REACH THE EAST COAST OF THE U.S. AND ATLANTIC CANADA ON SATURDAY... As of 5:00 PM AST Fri Oct 1 the center of Sam was located near 30.0, -61.8 with movement N at 20 mph. The minimum central pressure was 937 mb with maximum sustained winds of about 150 mph.

1 Oct 2021 - 18:00 UTC ...AIR FORCE HURRICANE HUNTERS INDICATE THAT SAM IS MAINTAINING CATEGORY 4 STRENGTH... ...CORE OF THE HURRICANE EXPECTED TO PASS WELL EAST OF BERMUDA TONIGHT... As of 2:00 PM AST Fri Oct 1 the center of Sam was located near 29.1, -61.9 with movement N at 21 mph. The minimum central pressure was 937 mb with maximum sustained winds of about 150 mph.

1 Oct 2021 - 15:00 UTC ...SAM REMAINS A POWERFUL CATEGORY 4 HURRICANE OVER THE CENTRAL ATLANTIC... ...CORE OF THE HURRICANE EXPECTED TO PASS WELL EAST OF BERMUDA TONIGHT... As of 11:00 AM AST Fri Oct 1 the center of Sam was located near 28.4, -61.8 with movement N at 21 mph. The minimum central pressure was 936 mb with maximum sustained winds of about 150 mph.

1 Oct 2021 - 12:00 UTC ...SAM REMAINS A POWERFUL CATEGORY 4 HURRICANE OVER THE CENTRAL ATLANTIC... ...TROPICAL STORM CONDITIONS EXPECTED ON BERMUDA BY TONIGHT OR EARLY SATURDAY... As of 8:00 AM AST Fri Oct 1 the center of Sam was located near 27.5, -61.8 with movement NNW at 17 mph. The minimum central pressure was 934 mb with maximum sustained winds of about 150 mph.

1 Oct 2021 - 9:00 UTC ...SAM'S CORE TO PASS WELL TO THE EAST OF BERMUDA... ...TROPICAL STORM CONDITIONS EXPECTED ON THE ISLAND BY TONIGHT OR EARLY SATURDAY... As of 5:00 AM AST Fri Oct 1 the center of Sam was located near 26.6, -61.7 with movement NNW at 17 mph. The minimum central pressure was 934 mb with maximum sustained winds of about 150 mph.

1 Oct 2021 - 6:00 UTC ...AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT FINDS SAM A LITTLE STRONGER... As of 2:00 AM AST Fri Oct 1 the center of Sam was located near 25.6, -61.6 with movement NNW at 16 mph. The minimum central pressure was 936 mb with maximum sustained winds of about 150 mph.

1 Oct 2021 - 3:00 UTC ...SAM STILL A POWERFUL 145 MPH HURRICANE... ...DANGEROUS SURF EXPECTED FOR A LARGE PORTION OF THE WESTERN ATLANTIC SHORELINE... As of 11:00 PM AST Thu Sep 30 the center of Sam was located near 25.0, -61.2 with movement NNW at 16 mph. The minimum central pressure was 938 mb with maximum sustained winds of about 145 mph.

1 Oct 2021 - 0:00 UTC ...POWERFUL HURRICANE SAM NOW MOVING NORTH-NORTHWEST... ...DANGEROUS SURF EXPECTED FOR A LARGE PORTION OF THE WESTERN ATLANTIC SHORELINE... As of 8:00 PM AST Thu Sep 30 the center of Sam was located near 24.3, -61.0 with movement NNW at 14 mph. The minimum central pressure was 938 mb with maximum sustained winds of about 145 mph.

30 Sep 2021 - 21:00 UTC ...INTENSE HURRICANE SAM EXPECTED TO BRING LARGE SWELLS AND DANGEROUS HIGH SURF TO A LARGE PORTION OF THE WESTERN ATLANTIC SHORELINE... As of 5:00 PM AST Thu Sep 30 the center of Sam was located near 23.6, -60.9 with movement NW at 14 mph. The minimum central pressure was 938 mb with maximum sustained winds of about 145 mph.

30 Sep 2021 - 18:00 UTC ...SAM MAINTAINING CATEGORY 4 INTENSITY... ...EXPECTED TO BRING DANGEROUS HIGH SURF TO A LARGE PORTION OF THE WESTERN ATLANTIC SHORELINE... As of 2:00 PM AST Thu Sep 30 the center of Sam was located near 23.1, -60.5 with movement NW at 13 mph. The minimum central pressure was 941 mb with maximum sustained winds of about 145 mph.

30 Sep 2021 - 15:00 UTC ...SAM EXPECTED TO CAUSE LARGE SWELLS AND HIGH SURF OVER A LARGE PORTION OF THE WESTERN ATLANTIC SHORELINE... As of 11:00 AM AST Thu Sep 30 the center of Sam was located near 22.6, -60.0 with movement NW at 13 mph. The minimum central pressure was 937 mb with maximum sustained winds of about 145 mph.

30 Sep 2021 - 12:00 UTC ...INTENSE HURRICANE SAM CONTINUES NORTHWESTWARD... As of 8:00 AM AST Thu Sep 30 the center of Sam was located near 22.1, -59.5 with movement NW at 12 mph. The minimum central pressure was 937 mb with maximum sustained winds of about 145 mph.

30 Sep 2021 - 9:00 UTC ...POWERFUL HURRICANE SAM CONTINUES NORTHWESTWARD... ...TROPICAL STORM WATCH ISSUED FOR BERMUDA... As of 5:00 AM AST Thu Sep 30 the center of Sam was located near 21.5, -59.1 with movement NW at 12 mph. The minimum central pressure was 937 mb with maximum sustained winds of about 145 mph.

30 Sep 2021 - 3:00 UTC ...SAM GAINING STRENGTH AND SIZE OVER THE WESTERN ATLANTIC... As of 11:00 PM AST Wed Sep 29 the center of Sam was located near 20.6, -58.4 with movement NW at 12 mph. The minimum central pressure was 940 mb with maximum sustained winds of about 145 mph.

29 Sep 2021 - 21:00 UTC ...CATEGORY 4 HURRICANE SAM PASSING WELL TO THE EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS... As of 5:00 PM AST Wed Sep 29 the center of Sam was located near 20.2, -57.6 with movement NW at 9 mph. The minimum central pressure was 945 mb with maximum sustained winds of about 130 mph.

29 Sep 2021 - 15:00 UTC ...POWERFUL SAM CONTINUES MOVING SLOWLY NORTHWESTWARD... As of 11:00 AM AST Wed Sep 29 the center of Sam was located near 19.4, -57.0 with movement NW at 9 mph. The minimum central pressure was 949 mb with maximum sustained winds of about 130 mph.

29 Sep 2021 - 9:00 UTC ...AIR FORCE HURRICANE HUNTERS FIND SAM FLUCTUATING IN STRENGTH... As of 5:00 AM AST Wed Sep 29 the center of Sam was located near 18.9, -56.2 with movement NW at 9 mph. The minimum central pressure was 950 mb with maximum sustained winds of about 130 mph.

29 Sep 2021 - 3:00 UTC ...SAM SLOWLY STRENGTHENING WITH 140-MPH WINDS... As of 11:00 PM AST Tue Sep 28 the center of Sam was located near 18.4, -55.6 with movement NW at 9 mph. The minimum central pressure was 944 mb with maximum sustained winds of about 140 mph.

28 Sep 2021 - 21:00 UTC ...SAM MAINTAINING CATEGORY 4 INTENSITY OVER THE TROPICAL ATLANTIC... As of 5:00 PM AST Tue Sep 28 the center of Sam was located near 17.9, -55.0 with movement NW at 9 mph. The minimum central pressure was 947 mb with maximum sustained winds of about 130 mph.

28 Sep 2021 - 15:00 UTC ...SAM REMAINS A POWERFUL CATEGORY 4 HURRICANE OVER THE TROPICAL ATLANTIC... As of 11:00 AM AST Tue Sep 28 the center of Sam was located near 17.5, -54.3 with movement NW at 8 mph. The minimum central pressure was 952 mb with maximum sustained winds of about 130 mph.

28 Sep 2021 - 9:00 UTC ...AIR FORCE HURRICANE HUNTERS FIND SAM HAS STRENGTHENED... As of 5:00 AM AST Tue Sep 28 the center of Sam was located near 17.2, -53.9 with movement NW at 9 mph. The minimum central pressure was 953 mb with maximum sustained winds of about 130 mph.

28 Sep 2021 - 3:00 UTC ...SAM EXPECTED TO REMAIN A POWERFUL HURRICANE FOR SEVERAL MORE DAYS... As of 11:00 PM AST Mon Sep 27 the center of Sam was located near 16.8, -53.2 with movement NW at 9 mph. The minimum central pressure was 956 mb with maximum sustained winds of about 120 mph.

27 Sep 2021 - 21:00 UTC ...SAM BEGINNING TO REGROUP AFTER WEAKENING... ...SOME REINTENSIFICATION EXPECTED THROUGH TONIGHT... As of 5:00 PM AST Mon Sep 27 the center of Sam was located near 16.3, -52.7 with movement NW at 9 mph. The minimum central pressure was 957 mb with maximum sustained winds of about 120 mph.

27 Sep 2021 - 15:00 UTC ...HURRICANE HUNTER AIRCRAFT CURRENTLY INVESTIGATING SAM... As of 11:00 AM AST Mon Sep 27 the center of Sam was located near 15.7, -52.1 with movement NW at 8 mph. The minimum central pressure was 966 mb with maximum sustained winds of about 125 mph.

27 Sep 2021 - 9:00 UTC ...SAM EXPECTED TO REMAIN A MAJOR HURRICANE FOR SEVERAL DAYS... ...HURRICANE HUNTER AIRCRAFT TO INVESTIGATE SAM LATER TODAY... As of 5:00 AM AST Mon Sep 27 the center of Sam was located near 15.2, -51.4 with movement NW at 8 mph. The minimum central pressure was 952 mb with maximum sustained winds of about 130 mph.

27 Sep 2021 - 3:00 UTC ...HURRICANE HUNTER AIRCRAFT FINDS SAM HAS PEAKED IN INTENSITY... ...EXPECTED TO REMAIN A MAJOR HURRICANE FOR SEVERAL DAYS... As of 11:00 PM AST Sun Sep 26 the center of Sam was located near 14.7, -50.8 with movement NW at 7 mph. The minimum central pressure was 943 mb with maximum sustained winds of about 145 mph.

26 Sep 2021 - 21:00 UTC ...SAM CONTINUES MOVING SLOWLY WEST-NORTHWESTWARD AS A CATEGORY 4 HURRICANE... As of 5:00 PM AST Sun Sep 26 the center of Sam was located near 14.2, -50.5 with movement NW at 7 mph. The minimum central pressure was 938 mb with maximum sustained winds of about 150 mph.

26 Sep 2021 - 15:00 UTC ...SAM CONTINUES MOVING SLOWLY WEST-NORTHWESTWARD AS A CATEGORY 4 HURRICANE... As of 11:00 AM AST Sun Sep 26 the center of Sam was located near 13.9, -50.2 with movement WNW at 8 mph. The minimum central pressure was 943 mb with maximum sustained winds of about 145 mph.

26 Sep 2021 - 9:00 UTC ...SAM REMAINS A CATEGORY FOUR HURRICANE... ...FLUCTUATIONS IN INTENSITY LIKELY DURING THE NEXT DAY OR SO... As of 5:00 AM AST Sun Sep 26 the center of Sam was located near 13.8, -49.7 with movement WNW at 8 mph. The minimum central pressure was 943 mb with maximum sustained winds of about 145 mph.

26 Sep 2021 - 3:00 UTC ...NOAA HURRICANE HUNTER AIRCRAFT FINDS THAT SAM HAS CONTINUED TO RAPIDLY INTENSIFY... ...FLUCTUATIONS IN INTENSITY LIKELY DURING THE NEXT DAY OR SO... As of 11:00 PM AST Sat Sep 25 the center of Sam was located near 13.5, -49.0 with movement WNW at 8 mph. The minimum central pressure was 943 mb with maximum sustained winds of about 145 mph.

25 Sep 2021 - 21:00 UTC ...SAM RAPIDLY INTENSIFIES TO A CATEGORY FOUR HURRICANE... ...SOME ADDITIONAL STRENGTHENING EXPECTED THROUGH TONIGHT... As of 5:00 PM AST Sat Sep 25 the center of Sam was located near 13.3, -48.5 with movement WNW at 10 mph. The minimum central pressure was 943 mb with maximum sustained winds of about 140 mph.

25 Sep 2021 - 15:00 UTC ...SMALL BUT DANGEROUS SAM NOW A MAJOR HURRICANE... ...SOME ADDITIONAL STRENGTHENING EXPECTED THIS WEEKEND... As of 11:00 AM AST Sat Sep 25 the center of Sam was located near 12.9, -47.6 with movement WNW at 10 mph. The minimum central pressure was 960 mb with maximum sustained winds of about 120 mph.

25 Sep 2021 - 9:00 UTC ...SAM ALMOST A MAJOR HURRICANE... ...ADDITIONAL STRENGTHENING EXPECTED... As of 5:00 AM AST Sat Sep 25 the center of Sam was located near 12.8, -46.7 with movement WNW at 13 mph. The minimum central pressure was 973 mb with maximum sustained winds of about 110 mph.

25 Sep 2021 - 3:00 UTC ...SAM NOW A CATEGORY 2 HURRICANE... ...FORECAST TO BECOME A MAJOR HURRICANE ON SATURDAY... As of 11:00 PM AST Fri Sep 24 the center of Sam was located near 12.4, -45.9 with movement WNW at 14 mph. The minimum central pressure was 982 mb with maximum sustained winds of about 100 mph.

24 Sep 2021 - 21:00 UTC ...SAM'S INTENSIFICATION RESUMES AS THE HURRICANE SLOWS ITS FORWARD MOTION... As of 5:00 PM AST Fri Sep 24 the center of Sam was located near 12.1, -44.8 with movement W at 12 mph. The minimum central pressure was 986 mb with maximum sustained winds of about 85 mph.

24 Sep 2021 - 15:00 UTC ...SAM TAKING A MOMENTARY PAUSE IN STRENGTHENING... ...RAPID INTENSIFICATION FORECAST TO RESUME SOON... As of 11:00 AM AST Fri Sep 24 the center of Sam was located near 11.8, -43.7 with movement W at 14 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 75 mph.

24 Sep 2021 - 9:00 UTC ...SAM IS NOW A HURRICANE... ...RAPID INTENSIFICATION FORECAST TO CONTINUE... As of 5:00 AM AST Fri Sep 24 the center of Sam was located near 11.5, -42.2 with movement W at 15 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 75 mph.

24 Sep 2021 - 3:00 UTC ...SMALL SAM RAPIDLY INTENSIFYING... ...RAPID INTENSIFICATION FORECAST TO CONTINUE THROUGH SATURDAY... As of 11:00 PM AST Thu Sep 23 the center of Sam was located near 11.2, -40.9 with movement W at 15 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 70 mph.

23 Sep 2021 - 21:00 UTC ...SAM CONTINUES TO STRENGTHEN... ...RAPID INTENSIFICATION POSSIBLE OVER THE NEXT SEVERAL DAYS... As of 5:00 PM AST Thu Sep 23 the center of Sam was located near 11.1, -39.7 with movement W at 16 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 60 mph.

23 Sep 2021 - 15:00 UTC ...DEPRESSION STRENGTHENS INTO TROPICAL STORM SAM, THE 18TH NAMED STORM OF THE SEASON... ...NOW FORECAST TO BECOME A HURRICANE TOMORROW... As of 11:00 AM AST Thu Sep 23 the center of Sam was located near 10.9, -38.1 with movement W at 16 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 50 mph.

23 Sep 2021 - 9:00 UTC ...TROPICAL DEPRESSION EXPECTED TO STRENGTHEN AS IT MOVES ACROSS THE TROPICAL CENTRAL ATLANTIC... As of 5:00 AM AST Thu Sep 23 the center of Eighteen was located near 10.5, -36.4 with movement W at 15 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

23 Sep 2021 - 3:00 UTC ...TROPICAL DEPRESSION EXPECTED TO TAKE ITS TIME CROSSING THE TROPICAL ATLANTIC... ...LOTS OF TIME TO MONITOR... As of 11:00 PM AST Wed Sep 22 the center of Eighteen was located near 10.2, -35.0 with movement W at 15 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.

22 Sep 2021 - 21:00 UTC ...ANOTHER TROPICAL DEPRESSION FORMS IN THE EASTERN ATLANTIC.. ...EXPECTED TO STRENGTHEN OVER THE NEXT SEVERAL DAYS... As of 5:00 PM AST Wed Sep 22 the center of Eighteen was located near 10.1, -33.9 with movement W at 15 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 35 mph.