10 Jun 2025 - 21:14 UTC
Post-tropical Cyclone Alvin at 20.7°N - 109.5°W
North Pacific Ocean
Last observation: 31 May 2025 - 23:10 UTC
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28 May 2025 - 31 May 2025
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NHC Storm Description:
31 May 2025 - 15:00 UTC ...ALVIN DEGENERATES TO A REMNANT LOW... ...SWELLS AND RIP CURRENTS POSSIBLE ALONG PORTIONS OF THE COASTS OF WEST-CENTRAL MAINLAND MEXICO AND SOUTHERN BAJA CALIFORNIA THIS WEEKEND... As of 8:00 AM MST Sat May 31 the center of Alvin was located near 20.7, -109.5 with movement N at 9 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.
31 May 2025 - 9:00 UTC ...ALVIN FORECAST TO A BECOME POST-TROPICAL REMNANT LOW LATER TODAY... As of 2:00 AM MST Sat May 31 the center of Alvin was located near 20.0, -109.3 with movement N at 10 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.
31 May 2025 - 3:00 UTC ...ALVIN WEAKENING... As of 8:00 PM MST Fri May 30 the center of Alvin was located near 19.1, -109.1 with movement N at 10 mph. The minimum central pressure was 1003 mb with maximum sustained winds of about 45 mph.
30 May 2025 - 21:00 UTC ...TROPICAL STORM ALVIN MOVING NORTH-NORTHWESTWARD... ...LARGE SWELL AND RIP CURRENTS POSSIBLE ACROSS PORTIONS OF WESTERN MAINLAND MEXICO AND SOUTHERN BAJA CALIFORNIA PENINSULA THROUGH THE WEEKEND... As of 2:00 PM MST Fri May 30 the center of Alvin was located near 18.1, -109.0 with movement NNW at 10 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 50 mph.
30 May 2025 - 15:00 UTC ...LARGE SWELL AND RIP CURRENTS POSSIBLE ACROSS PORTIONS OF WESTERN MAINLAND MEXICO AND SOUTHERN BAJA CALIFORNIA PENINSULA THROUGH THE WEEKEND... As of 8:00 AM MST Fri May 30 the center of Alvin was located near 17.4, -108.8 with movement NW at 10 mph. The minimum central pressure was 1001 mb with maximum sustained winds of about 50 mph.
30 May 2025 - 9:00 UTC ...ALVIN SENDING LARGE SWELL TOWARDS PORTIONS OF WESTERN MAINLAND MEXICO AND THE BAJA CALIFORNIA PENINSULA... ...INCREASED RISK OF LIFE-THREATENING RIP CURRENTS... As of 2:00 AM MST Fri May 30 the center of Alvin was located near 16.6, -108.3 with movement NNW at 10 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 50 mph.
30 May 2025 - 3:00 UTC ...ALVIN REMAINS WELL OFFSHORE OF SOUTHWESTERN MEXICO... As of 8:00 PM MST Thu May 29 the center of Alvin was located near 16.0, -107.9 with movement NW at 12 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 60 mph.
29 May 2025 - 21:00 UTC ...TROPICAL STORM ALVIN CONTINUES TO STRENGTHEN... As of 2:00 PM MST Thu May 29 the center of Alvin was located near 15.1, -107.2 with movement NW at 12 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 60 mph.
29 May 2025 - 15:00 UTC ...DEPRESSION STRENGTHENS TO TROPICAL STORM ALVIN... As of 8:00 AM MST Thu May 29 the center of Alvin was located near 13.8, -106.3 with movement NW at 10 mph. The minimum central pressure was 1005 mb with maximum sustained winds of about 40 mph.
29 May 2025 - 9:00 UTC ...DEPRESSION EXPECTED TO STRENGTHEN INTO A TROPICAL STORM LATER TODAY... As of 2:00 AM MST Thu May 29 the center of One-E was located near 13.3, -106.0 with movement NNW at 9 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.
28 May 2025 - 21:00 UTC ...TROPICAL DEPRESSION ONE-E FORMS SOUTH OF MEXICO... As of 3:00 PM CST Wed May 28 the center of One-E was located near 11.9, -104.7 with movement NW at 9 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.

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Day Convection
RGB used to identify areas of rapid intensification
31 May 2025 - 22:40 UTC
Last update > 1 hour
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Day Night Cloud Micro Combo
Day: show cloud-top phase; Night: distinguish clouds / fog
31 May 2025 - 22:40 UTC
Last update > 1 hour
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Sandwich RGB
Blend combines IR band 13 with visual band 3
31 May 2025 - 22:40 UTC
Last update > 1 hour
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