Storm Activity: May 16, 2020 - May 21, 2020
May 21 · 00:00 GMT 45 mph 1,008 mb Extratropical
| May 21 | 00:00 GMT | 32.8 | -65 | 45 mph | 1,008 mb | Extratropical | -- |
| May 20 | 21:00 GMT | 33.25 | -65.15 | 50 mph | 1,007 mb | Extratropical | -- |
| May 20 | 18:00 GMT | 33.7 | -65.3 | 50 mph | 1,006 mb | Extratropical | -- |
| May 20 | 15:00 GMT | 34.15 | -65.44 | 55 mph | 1,004 mb | Extratropical | -- |
| May 20 | 12:00 GMT | 34.6 | -65.6 | 60 mph | 1,002 mb | Extratropical | -- |
| May 20 | 09:00 GMT | 35.06 | -65.76 | 60 mph | 999 mb | Extratropical | -- |
| May 20 | 06:00 GMT | 35.5 | -66 | 60 mph | 997 mb | Extratropical | -- |
| May 20 | 03:00 GMT | 35.86 | -66.36 | 60 mph | 995 mb | Extratropical | -- |
| May 20 | 00:00 GMT | 36.2 | -66.8 | 60 mph | 993 mb | Extratropical | -- |
| May 19 | 21:00 GMT | 36.59 | -67.23 | 60 mph | 992 mb | Extratropical | -- |
| May 19 | 18:00 GMT | 36.9 | -67.8 | 60 mph | 991 mb | Extratropical | -- |
| May 19 | 15:00 GMT | 37.02 | -68.58 | 60 mph | 990 mb | Extratropical | -- |
| May 19 | 12:00 GMT | 37 | -69.5 | 65 mph | 989 mb | Extratropical | -- |
| May 19 | 09:00 GMT | 36.95 | -70.45 | 60 mph | 989 mb | Tropical Storm | -- |
| May 19 | 06:00 GMT | 36.8 | -71.4 | 60 mph | 990 mb | Tropical Storm | -- |
| May 19 | 03:00 GMT | 36.54 | -72.27 | 60 mph | 990 mb | Tropical Storm | -- |
| May 19 | 00:00 GMT | 36.2 | -73.1 | 60 mph | 991 mb | Tropical Storm | -- |
| May 18 | 21:00 GMT | 35.89 | -73.94 | 55 mph | 992 mb | Tropical Storm | -- |
| May 18 | 18:00 GMT | 35.5 | -74.7 | 50 mph | 993 mb | Tropical Storm | -- |
| May 18 | 15:00 GMT | 34.99 | -75.36 | 50 mph | 996 mb | Tropical Storm | -- |
| May 18 | 12:00 GMT | 34.4 | -75.9 | 50 mph | 1,000 mb | Tropical Storm | -- |
| May 18 | 09:00 GMT | 33.76 | -76.37 | 50 mph | 1,001 mb | Tropical Storm | -- |
| May 18 | 06:00 GMT | 33.1 | -76.7 | 45 mph | 1,002 mb | Tropical Storm | -- |
| May 18 | 03:00 GMT | 32.47 | -76.89 | 45 mph | 1,002 mb | Tropical Storm | -- |
| May 18 | 00:00 GMT | 31.9 | -77 | 45 mph | 1,003 mb | Tropical Storm | -- |
| May 17 | 21:00 GMT | 31.41 | -77.16 | 45 mph | 1,003 mb | Tropical Storm | -- |
| May 17 | 18:00 GMT | 31 | -77.3 | 45 mph | 1,003 mb | Tropical Storm | -- |
| May 17 | 15:00 GMT | 30.64 | -77.41 | 45 mph | 1,003 mb | Tropical Storm | -- |
| May 17 | 12:00 GMT | 30.3 | -77.5 | 40 mph | 1,003 mb | Tropical Storm | -- |
| May 17 | 09:00 GMT | 29.95 | -77.53 | 40 mph | 1,003 mb | Tropical Storm | -- |
| May 17 | 06:00 GMT | 29.6 | -77.6 | 40 mph | 1,004 mb | Tropical Storm | -- |
| May 17 | 03:00 GMT | 29.26 | -77.75 | 40 mph | 1,005 mb | Tropical Storm | -- |
| May 17 | 00:00 GMT | 28.9 | -78 | 40 mph | 1,006 mb | Tropical Storm | -- |
| May 16 | 21:00 GMT | 28.47 | -78.33 | 35 mph | 1,007 mb | Tropical Depression | -- |
| May 16 | 18:00 GMT | 28 | -78.7 | 35 mph | 1,008 mb | Tropical Depression | -- |
Learn more about Tropical Storm Arthur and the 2020 Atlantic hurricane season in our hurricane archive.
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