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Post-tropical Cyclone Don at 47.6°N - 40.7°W

North Atlantic Ocean

Last observation: 24 Jul 2023 - 22:41 UTC

« 2023 Storms »

14 Jul 2023 - 24 Jul 2023

Approximately 2000 miles from the U.S. east coast


Storm images and information

NHC Storm Description:

24 Jul 2023 - 15:00 UTC ...DON NOW A POST-TROPICAL CYCLONE... ...THIS IS THE LAST ADVISORY... As of 3:00 PM GMT Mon Jul 24 the center of Don was located near 47.6, -40.7 with movement ENE at 20 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 45 mph.

24 Jul 2023 - 9:00 UTC ...LONG-LIVED DON ON ITS LAST LEGS AS A TROPICAL CYCLONE... As of 9:00 AM GMT Mon Jul 24 the center of Don was located near 47.0, -43.0 with movement ENE at 18 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 45 mph.

24 Jul 2023 - 3:00 UTC ...DON EXPECTED TO BECOME A POST-TROPICAL CYCLONE SOON... As of 3:00 AM GMT Mon Jul 24 the center of Don was located near 46.3, -44.8 with movement NE at 20 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

23 Jul 2023 - 21:00 UTC ...DON A LITTLE WEAKER... As of 5:00 PM AST Sun Jul 23 the center of Don was located near 45.2, -46.5 with movement NE at 17 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 60 mph.

23 Jul 2023 - 15:00 UTC ...DON MOVING OVER COOLER WATERS... As of 11:00 AM AST Sun Jul 23 the center of Don was located near 43.9, -47.8 with movement NNE at 16 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 65 mph.

23 Jul 2023 - 9:00 UTC ...DON FORECAST TO CONTINUE WEAKENING OVER COOLER WATERS... As of 5:00 AM AST Sun Jul 23 the center of Don was located near 42.6, -48.9 with movement NNE at 16 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 65 mph.

23 Jul 2023 - 3:00 UTC ...DON STILL A HURRICANE BUT BEGINNING TO MOVE NORTH-NORTHEASTWARD OVER COOLER WATERS... As of 11:00 PM AST Sat Jul 22 the center of Don was located near 41.4, -49.6 with movement NNE at 14 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 75 mph.

22 Jul 2023 - 21:00 UTC ...DON BECOMES A HURRICANE JUST BEFORE REACHING COOLER WATERS... As of 5:00 PM AST Sat Jul 22 the center of Don was located near 40.1, -50.0 with movement N at 12 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 75 mph.

22 Jul 2023 - 15:00 UTC ...DON A LITTLE STRONGER... As of 11:00 AM AST Sat Jul 22 the center of Don was located near 39.1, -50.1 with movement N at 13 mph. The minimum central pressure was 995 mb with maximum sustained winds of about 65 mph.

22 Jul 2023 - 9:00 UTC ...DON MOVING NORTHWESTWARD OVER THE CENTRAL ATLANTIC... As of 5:00 AM AST Sat Jul 22 the center of Don was located near 38.3, -49.6 with movement NW at 14 mph. The minimum central pressure was 998 mb with maximum sustained winds of about 60 mph.

22 Jul 2023 - 3:00 UTC ...DON HOLDING STEADY IN STRENGTH OVER THE CENTRAL ATLANTIC... As of 11:00 PM AST Fri Jul 21 the center of Don was located near 37.4, -48.6 with movement NW at 14 mph. The minimum central pressure was 998 mb with maximum sustained winds of about 60 mph.

21 Jul 2023 - 21:00 UTC ...DON SLIGHTLY STRONGER... As of 5:00 PM AST Fri Jul 21 the center of Don was located near 36.6, -47.5 with movement NW at 12 mph. The minimum central pressure was 998 mb with maximum sustained winds of about 60 mph.

21 Jul 2023 - 15:00 UTC ...DON MOVING WEST-NORTHWESTWARD WITH NO CHANGE IN STRENGTH... As of 11:00 AM AST Fri Jul 21 the center of Don was located near 35.8, -46.5 with movement WNW at 10 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

21 Jul 2023 - 9:00 UTC ...DON CONTINUES WEST-NORTHWESTWARD... As of 5:00 AM AST Fri Jul 21 the center of Don was located near 35.4, -45.6 with movement WNW at 9 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

21 Jul 2023 - 3:00 UTC ...DON STRUGGLING WITH DRY AIR AS IT CONTINUES WEST-NORTHWESTWARD... As of 3:00 AM GMT Fri Jul 21 the center of Don was located near 34.8, -44.7 with movement WNW at 9 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

20 Jul 2023 - 21:00 UTC ...DON CONTINUES WEST-NORTHWESTWARD... As of 9:00 PM GMT Thu Jul 20 the center of Don was located near 34.7, -43.7 with movement WNW at 10 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

20 Jul 2023 - 15:00 UTC ...DON CONTINUES WEST-NORTHWESTWARD WITH NO CHANGE IN INTENSITY... As of 3:00 PM GMT Thu Jul 20 the center of Don was located near 34.4, -42.7 with movement WNW at 8 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

20 Jul 2023 - 9:00 UTC ...DON NOW MOVING WEST-NORTHWESTWARD... As of 9:00 AM GMT Thu Jul 20 the center of Don was located near 34.1, -41.6 with movement WNW at 7 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

20 Jul 2023 - 3:00 UTC ...DON CONTINUES TO STRENGTHEN OVER THE CENTRAL ATLANTIC... As of 3:00 AM GMT Thu Jul 20 the center of Don was located near 33.9, -40.9 with movement W at 6 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

19 Jul 2023 - 21:00 UTC ...DON STRENGTHENING OVER THE CENTRAL ATLANTIC... As of 9:00 PM GMT Wed Jul 19 the center of Don was located near 33.8, -40.3 with movement W at 8 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

19 Jul 2023 - 15:00 UTC ...DON POISED TO STRENGTHEN WHILE IT MOVES OVER WARMER WATERS... As of 3:00 PM GMT Wed Jul 19 the center of Don was located near 33.9, -39.6 with movement WSW at 5 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

19 Jul 2023 - 9:00 UTC ...DON MOVING SLOWLY SOUTHWARD AND EXPECTED TO TURN WESTWARD OVER THE CENTRAL ATLANTIC... As of 9:00 AM GMT Wed Jul 19 the center of Don was located near 34.0, -39.3 with movement S at 5 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

19 Jul 2023 - 3:00 UTC ...DON SLOWING DOWN AS IT PREPARES TO TURN WESTWARD OVER THE CENTRAL ATLANTIC... As of 3:00 AM GMT Wed Jul 19 the center of Don was located near 34.3, -39.0 with movement S at 3 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

18 Jul 2023 - 21:00 UTC ...DON HALFWAY THROUGH A LARGE TRACK LOOP IN THE CENTRAL ATLANTIC... As of 9:00 PM GMT Tue Jul 18 the center of Don was located near 34.9, -39.2 with movement S at 7 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

18 Jul 2023 - 15:00 UTC ...DON BARELY A TROPICAL STORM... ...EXPECTED TO INTENSIFY LATER THIS WEEK... As of 3:00 PM GMT Tue Jul 18 the center of Don was located near 35.6, -39.3 with movement SSE at 9 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

18 Jul 2023 - 9:00 UTC ...DON NOW MOVING SOUTHEASTWARD WITH LITTLE CHANGE IN STRENGTH... As of 9:00 AM GMT Tue Jul 18 the center of Don was located near 36.3, -39.6 with movement SE at 12 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.

18 Jul 2023 - 3:00 UTC ...SATELLITE WIND DATA INDICATES DON HAS BECOME A TROPICAL STORM... As of 3:00 AM GMT Tue Jul 18 the center of Don was located near 37.4, -40.4 with movement SE at 13 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 40 mph.

17 Jul 2023 - 21:00 UTC ...DON TURNS SOUTHEASTWARD WHILE IT MOVES OVER THE CENTRAL ATLANTIC... As of 9:00 PM GMT Mon Jul 17 the center of Don was located near 38.1, -41.6 with movement SE at 14 mph. The minimum central pressure was 1010 mb with maximum sustained winds of about 35 mph.

17 Jul 2023 - 15:00 UTC ...DON IN THE MIDST OF A LARGE TRACK LOOP OVER THE CENTRAL ATLANTIC... As of 3:00 PM GMT Mon Jul 17 the center of Don was located near 38.6, -42.9 with movement ESE at 14 mph. The minimum central pressure was 1011 mb with maximum sustained winds of about 35 mph.

17 Jul 2023 - 9:00 UTC ...DON REMAINS A SUBTROPICAL DEPRESSION WELL WEST OF THE AZORES... As of 9:00 AM GMT Mon Jul 17 the center of Don was located near 39.2, -44.7 with movement E at 9 mph. The minimum central pressure was 1011 mb with maximum sustained winds of about 35 mph.

17 Jul 2023 - 3:00 UTC ...DON CONTINUES MOVING EASTWARD... As of 11:00 PM AST Sun Jul 16 the center of Don was located near 39.4, -45.8 with movement E at 10 mph. The minimum central pressure was 1011 mb with maximum sustained winds of about 35 mph.

16 Jul 2023 - 21:00 UTC ...DON TURNS EASTWARD OVER THE CENTRAL ATLANTIC... As of 5:00 PM AST Sun Jul 16 the center of Don was located near 39.3, -47.0 with movement E at 9 mph. The minimum central pressure was 1010 mb with maximum sustained winds of about 35 mph.

16 Jul 2023 - 15:00 UTC ...DON LOSING ORGANIZATION OVER THE CENTRAL ATLANTIC... As of 11:00 AM AST Sun Jul 16 the center of Don was located near 39.0, -48.1 with movement ENE at 8 mph. The minimum central pressure was 1009 mb with maximum sustained winds of about 35 mph.

16 Jul 2023 - 9:00 UTC ...DON HANGING ON AS A SUBTROPICAL STORM... As of 5:00 AM AST Sun Jul 16 the center of Don was located near 38.6, -48.4 with movement N at 7 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 40 mph.

16 Jul 2023 - 3:00 UTC ...SATELLITE WIND DATA SHOW DON IS STILL A SUBTROPICAL STORM... As of 11:00 PM AST Sat Jul 15 the center of Don was located near 38.2, -48.7 with movement N at 10 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 40 mph.

15 Jul 2023 - 21:00 UTC ...DON WEAKENS WHILE IT TURNS NORTHWARD... As of 5:00 PM AST Sat Jul 15 the center of Don was located near 37.3, -48.6 with movement N at 9 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 40 mph.

15 Jul 2023 - 15:00 UTC ...DON FORECAST TO LINGER OVER THE CENTRAL ATLANTIC FOR THE NEXT SEVERAL DAYS... As of 11:00 AM AST Sat Jul 15 the center of Don was located near 36.5, -48.8 with movement NW at 9 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 45 mph.

15 Jul 2023 - 9:00 UTC ...DON HOLDING STEADY IN STRENGTH OVER THE CENTRAL ATLANTIC... As of 5:00 AM AST Sat Jul 15 the center of Don was located near 35.7, -47.8 with movement N at 9 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

15 Jul 2023 - 3:00 UTC ...DON MOVING NORTHWARD... As of 11:00 PM AST Fri Jul 14 the center of Don was located near 34.7, -47.2 with movement N at 9 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

14 Jul 2023 - 21:00 UTC ...DON MOVING NORTHWESTWARD... ...LITTLE CHANGE IN INTENSITY EXPECTED DURING THE NEXT SEVERAL DAYS... As of 5:00 PM AST Fri Jul 14 the center of Don was located near 34.1, -48.0 with movement NW at 8 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

14 Jul 2023 - 15:00 UTC ...DON WEAKENS A LITTLE WHILE MOVING SLOWLY NORTH-NORTHWESTWARD OVER THE CENTRAL ATLANTIC... As of 11:00 AM AST Fri Jul 14 the center of Don was located near 33.7, -47.3 with movement NNW at 7 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 45 mph.

14 Jul 2023 - 9:00 UTC ...SUBTROPICAL STORM DON FORMS OVER THE CENTRAL ATLANTIC... As of 5:00 AM AST Fri Jul 14 the center of Don was located near 32.9, -46.8 with movement N at 6 mph. The minimum central pressure was 1002 mb with maximum sustained winds of about 50 mph.

Post-tropical Cyclone Don at 47.6°N - 40.7°W

GeoColor

True Color daytime, multispectral IR at night
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

GLM FED

Lightning flash extent over GeoColor
24 Jul 2023 - 22:46 UTC

Last update > 1 hour

Day Convection

RGB used to identify areas of rapid intensification
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Day Night Cloud Micro Combo

Day: show phase of cloud tops; night: distinguish clouds from fog
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Air Mass RGB

RGB based on data from IR & water vapor
24 Jul 2023 - 22:40 UTC

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Sandwich RGB

Blend combines IR band 13 with visual band 3
24 Jul 2023 - 22:40 UTC

Last update > 1 hour


Band 1

0.47 µm
Blue - Visible
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 2

0.64 µm
Red - Visible
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 3

0.86 µm
Veggie - Near IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 4

1.37 µm
Cirrus - Near IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 5

1.6 µm
Snow/Ice - Near IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 6

2.2 µm
Cloud Particle - Near IR
24 Jul 2023 - 22:40 UTC

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Band 7

3.9 µm
Shortwave Window - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 8

6.2 µm
Upper-Level Water Vapor - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 9

6.9 µm
Mid-Level Water Vapor - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 10

7.3 µm
Lower-level Water Vapor - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 11

8.4 µm
Cloud Top - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 12

9.6 µm
Ozone - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 13

10.3 µm
Clean Longwave Window - IR
24 Jul 2023 - 22:40 UTC

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Band 14

11.2 µm
Longwave Window - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 15

12.3 µm
Dirty Longwave Window - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour

Band 16

13.3 µm
CO₂ Longwave - IR
24 Jul 2023 - 22:40 UTC

Last update > 1 hour