Cyclocane

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ALVIN Current Status

Current Wind Speed 30 knots / 35 MPH

Max Predicted Wind Speed 30 knots / 35 MPH at 2025-05-31T15:00:00.000Z

ALVIN Land Hazards

• SURF - Swells generated by this system will affect portions of the coasts of west-central Mexico and the southern Baja California Peninsula through the weekend. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.

ALVIN Tracker

ALVIN Satellite Loop

ALVIN Alternate Tracking Map

ALVIN Spaghetti Models

Spaghetti models for ALVIN can be found here:

ALVIN spaghetti models page »

ALVIN Watches and Warnings

Post-Tropical Cyclone ALVIN Tropical Cyclone Update

Post-Tropical Cyclone ALVIN Public Advisory

000
WTPZ31 KNHC 311436
TCPEP1
 
BULLETIN
Post-Tropical Cyclone Alvin Advisory Number  12
NWS National Hurricane Center Miami FL       EP012025
800 AM MST Sat May 31 2025
 
...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...
 
 
SUMMARY OF 800 AM MST...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...20.7N 109.5W
ABOUT 155 MI...250 KM S OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...N OR 360 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 800 AM MST (1500 UTC), the center of Post-Tropical Cyclone Alvin
was located near latitude 20.7 North, longitude 109.5 West. The
post-tropical cyclone is moving toward the north near 9 mph (15
km/h).  A slightly slower northward motion is expected through 
tonight. 

Maximum sustained winds have decreased to near 35 mph (55 km/h) 
with higher gusts. Additional weakening is expected today and the 
low is forecast to dissipate by Sunday. 

The estimated minimum central pressure is 1006 mb (29.71 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
SURF: Swells generated by this system will affect portions of the
coasts of west-central Mexico and the southern Baja California
Peninsula through the weekend. These swells are likely to cause
life-threatening surf and rip current conditions. Please consult
products from your local weather office.
 
 
NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on Alvin.  Additional information on this system can be 
found in High Seas Forecasts issued by the National Weather 
Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and 
online at ocean.weather.gov/shtml/NFDHSFAT1.php
 
$$
Forecaster Brown

Public Advisory not available for this storm.

Post-Tropical Cyclone ALVIN Forecast Discussion

000
WTPZ41 KNHC 311437
TCDEP1
 
Post-Tropical Cyclone Alvin Discussion Number  12
NWS National Hurricane Center Miami FL       EP012025
800 AM MST Sat May 31 2025
 
Cool waters, dry mid-level air, and strong vertical wind shear
have taken their toll on Alvin.  The system has been devoid of deep
convection for more than 12 hours, and has become a swirl of low- to
mid-level clouds.  The initial intensity has been lowered to a
possibly generous 30 kt.  Continued hostile environmental
conditions are expected to prevent any return of deep convection,
and therefore this will be the final advisory on the system as it
has become a post-tropical remnant low.
 
The low should continue to spin down as it moves slowly northward
today. Global model guidance indicates that the low will open up
into a trough of low pressure as it passes near the southern tip of
the Baja California Peninsula in about 24 hours.
 
Swells generated by Alvin are expected to persist along portions of
the west-central mainland Mexico and southern Baja California 
coasts through the weekend, creating potentially dangerous surf and 
rip current conditions.
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  31/1500Z 20.7N 109.5W   30 KT  35 MPH...POST-TROPICAL
 12H  01/0000Z 21.8N 109.7W   25 KT  30 MPH...POST-TROP/REMNT LOW
 24H  01/1200Z...DISSIPATED
 
$$
Forecaster Brown

ALVIN storm path from NHC

site by Hayley Croft

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