3 Jun 2025 - 08:55 UTC
Post-tropical Cyclone Alvin at 20.7°N - 109.5°W
North Pacific Ocean
Last observation: 31 May 2025 - 23:05 UTC
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28 May 2025 - 31 May 2025
Storm images and information
NHC Storm Description:
PTC Alvin - The NHC has issued its final advisory on this system. Relevant sectors and Mesoscale views are shown here for 7 days beyond the final NHC advisory for reference.
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.
GeoColor
GeoColor is a multispectral product composed of True Color (using a simulated green component) during daytime, and an Infrared product that uses bands 7 and 13 at night. During the day, the imagery looks approximately as it would when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database derived from the VIIRS Day Night Band.
GeoColor was developed at the Cooperative Institute for Research in the Atmosphere (CIRA) and the STAR Regional and Mesoscale Meteorology Branch (RAMMB). For a full description of the algorithm, please see this article.
Please credit CIRA/NOAA when using GeoColor imagery.
NOTE: Lighted areas shown in nighttime images are not real-time depictions of city lights. The layer is derived from a compilation of JPSS VIIRS Day Night Band images and is included for orientation purposes.
GeoColor
GeoColor is a multispectral product composed of True Color (using a simulated green component) during daytime, and an Infrared product that uses bands 7 and 13 at night. During the day, the imagery looks approximately as it would when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database derived from the VIIRS Day Night Band.
GeoColor was developed at the Cooperative Institute for Research in the Atmosphere (CIRA) and the STAR Regional and Mesoscale Meteorology Branch (RAMMB). For a full description of the algorithm, please see this article.
Please credit CIRA/NOAA when using GeoColor imagery.
NOTE: Lighted areas shown in nighttime images are not real-time depictions of city lights. The layer is derived from a compilation of JPSS VIIRS Day Night Band images and is included for orientation purposes.
GeoColor
GeoColor is a multispectral product composed of True Color (using a simulated green component) during daytime, and an Infrared product that uses bands 7 and 13 at night. During the day, the imagery looks approximately as it would when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database derived from the VIIRS Day Night Band.
GeoColor was developed at the Cooperative Institute for Research in the Atmosphere (CIRA) and the STAR Regional and Mesoscale Meteorology Branch (RAMMB). For a full description of the algorithm, please see this article.
Please credit CIRA/NOAA when using GeoColor imagery.
NOTE: Lighted areas shown in nighttime images are not real-time depictions of city lights. The layer is derived from a compilation of JPSS VIIRS Day Night Band images and is included for orientation purposes.
GeoColor
GeoColor is a multispectral product composed of True Color (using a simulated green component) during daytime, and an Infrared product that uses bands 7 and 13 at night. During the day, the imagery looks approximately as it would when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database derived from the VIIRS Day Night Band.
GeoColor was developed at the Cooperative Institute for Research in the Atmosphere (CIRA) and the STAR Regional and Mesoscale Meteorology Branch (RAMMB). For a full description of the algorithm, please see this article.
Please credit CIRA/NOAA when using GeoColor imagery.
NOTE: Lighted areas shown in nighttime images are not real-time depictions of city lights. The layer is derived from a compilation of JPSS VIIRS Day Night Band images and is included for orientation purposes.
GeoColor
GeoColor is a multispectral product composed of True Color (using a simulated green component) during daytime, and an Infrared product that uses bands 7 and 13 at night. During the day, the imagery looks approximately as it would when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database derived from the VIIRS Day Night Band.
GeoColor was developed at the Cooperative Institute for Research in the Atmosphere (CIRA) and the STAR Regional and Mesoscale Meteorology Branch (RAMMB). For a full description of the algorithm, please see this article.
Please credit CIRA/NOAA when using GeoColor imagery.
NOTE: Lighted areas shown in nighttime images are not real-time depictions of city lights. The layer is derived from a compilation of JPSS VIIRS Day Night Band images and is included for orientation purposes.
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Day Convection
RGB used to identify areas of rapid intensification
31 May 2025 - 22:40 UTC
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Day Night Cloud Micro Combo
Day: show cloud-top phase; Night: distinguish clouds / fog
31 May 2025 - 22:40 UTC
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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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