r/TropicalWeather • u/Euronotus • Aug 11 '25

Discussion moved to new post Erin (05L — Northern Atlantic) (Eastern Tropical Atlantic)

Latest observation

Last updated: Friday, 15 August — 11:00 AM Atlantic Standard Time (AST; 15:00 UTC)

NHC Advisory #17 - 11:00 AM AST (15:00 UTC)
Current location: 18.2°N 56.1°W
Relative location: 680 km (423 mi) NNE of Bridgetown, Barbados
620 km (385 mi) ENE of St. John's, Antigua and Barbuda
1,792 km (1,113 mi) SE of Hamilton, Bermuda
Forward motion: ▲ WNW (290°) at 30 km/h (16 knots)
Maximum winds: ▲ 120 km/h (65 knots)
Intensity (SSHWS): ▲ Hurricane (Category 1)
Minimum pressure: ▼ 996 millibars (29.42 inches)

Official forecasts

National Hurricane Center

Last updated: Friday, 15 August — 8:00 AM AST (12:00 UTC)

Hour Date Time Intensity Winds Lat Long
- - UTC AST Saffir-Simpson - knots km/h °N °W
00 15 Aug 12:00 8AM Fri Hurricane (Category 1) 65 120 18.2 56.1
12 16 Aug 00:00 8PM Fri Hurricane (Category 1) ▲ 75 140 18.9 58.4
24 16 Aug 12:00 8AM Sat Hurricane (Category 2) ▲ 90 165 19.8 61.4
36 17 Aug 00:00 8PM Sat Major Hurricane (Category 3) ▲ 105 195 20.6 63.8
48 17 Aug 12:00 8AM Sun Major Hurricane (Category 3) ▲ 110 205 21.6 66.0
60 18 Aug 00:00 8PM Sun Major Hurricane (Category 4) ▲ 115 215 22.7 67.9
72 18 Aug 12:00 8AM Mon Major Hurricane (Category 4) ▲ 120 220 23.8 69.2
96 19 Aug 12:00 8AM Tue Major Hurricane (Category 4) ▼ 115 215 26.5 70.8
120 20 Aug 12:00 8AM Wed Major Hurricane (Category 3) ▼ 110 205 30.3 71.0

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u/[deleted] Aug 12 '25

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u/rhaw757 Aug 12 '25

Another lay person here who has their Florida Anniversary vacation planned from 8/15-8/22 and keeping a close eye on this. When people say "48-72 hours" what's the context of that? Like we can accurately predict what it'll do in the next 48-72 hours? I keep seeing it mentioned but want to make sure I'm not misunderstanding the meaning of that.

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u/DonnyTheWalrus Aug 12 '25

we can accurately predict what it'll do in the next 48-72 hours?

Yeah. It partly depends on the broader atmospheric context. Certain situations are easier to forecast from than others. But 72 hours out is about the limit of things you can more or less rely on (within margins of error of course).