Skip to content
BajaStorms

Tropical Storm Polo

No official Baja watch/warning

No official Baja watch or warning is in effect in the current NHC data.

Tropical Storm Polo has maximum sustained winds of 45 mph and is moving NE at 8 mph. Rapid intensification is forecast, and Polo is expected to become a hurricane later today and a major hurricane in a couple of days.

Polo advisory updated:

Source: NOAA / National Hurricane Center (NHC)

Key Facts

Type
Tropical Storm
Max sustained wind
45 mph
Min pressure
1003 mb
Movement
NE 8 mph
Distance to BCS
647 mi

Polo Storm Tracker

Polo | Tropical Storm | Max wind 45 mph
DepressionTropical StormHurricaneMajor Hurricane

Map sources: NHC 7-Day OutlookNHC storm track and coneNOAA GFS wind. Visualization by BajaStorms.

NHC Forecast ConeGraphic updated:
Official NHC forecast cone and track for Polo; issue time shown in image
Current official NHC forecast cone and track.NHC ↗
Interactive GuidanceSep 20, 11:00 PM GMT-7
10°N15°N20°N25°N115°W110°W105°W100°W95°W

Constructed guidance: Not the official NHC forecast

Advisory Timeline

  1. Advisory Timeline #3

    Polo expected to rapidly intensify.

    Official NHC advisory text
    ZCZC MIATCPEP2 ALL
    TTAA00 KNHC DDHHMM
     
    BULLETIN
    Tropical Storm Polo Advisory Number   3
    NWS National Hurricane Center Miami FL       EP172026
    300 AM CST Mon Sep 21 2026
     
    ...POLO EXPECTED TO RAPIDLY INTENSIFY...
    ...TROPICAL STORM WATCH ISSUED FOR A PORTION OF SOUTHWESTERN
    MEXICO...
     
     
    SUMMARY OF 300 AM CST...0900 UTC...INFORMATION
    ----------------------------------------------
    LOCATION...15.5N 103.8W
    ABOUT 245 MI...395 KM S OF MANZANILLO MEXICO
    ABOUT 210 MI...340 KM SW OF ZIHUATANEJO MEXICO
    MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
    PRESENT MOVEMENT...NE OR 50 DEGREES AT 8 MPH...13 KM/H
    MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES
     
     
    WATCHES AND WARNINGS
    --------------------
    CHANGES WITH THIS ADVISORY:
     
    The government of Mexico has issued a Tropical Storm Watch from
    Tecpan de Galeana to Punta San Telmo.
    
    SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
     
    A Tropical Storm Watch is in effect for...
    * Tecpan de Galeana to Punta San Telmo
     
    A Tropical Storm Watch means that tropical storm conditions are
    possible within the watch area, generally within 48 hours.
     
    The Tropical Storm Watch will likely be expanded westward later 
    today or tonight.
     
    For storm information specific to your area, please monitor
    products issued by your national meteorological service.
     
     
    DISCUSSION AND OUTLOOK
    ----------------------
    At 300 AM CST (0900 UTC), the center of Tropical Storm Polo was
    located near latitude 15.5 North, longitude 103.8 West. Polo is
    moving toward the northeast near 8 mph (13 km/h). A slow 
    eastward or southeastward motion is expected later today and 
    tonight. However, a sharp turn toward the west-northwest or 
    northwest is expected by late Tuesday. On the forecast track, the 
    core of Polo is expected to be near the coast of southwestern 
    Mexico during the next few days. 
     
    Maximum sustained winds have increased to near 45 mph (75 km/h) 
    with higher gusts. Rapid intensification is forecast, and Polo is 
    expected to become a hurricane later today and a major hurricane  
    in a couple of days.
     
    Tropical-storm-force winds extend outward up to 60 miles (95 km)
    from the center.
     
    The estimated minimum central pressure is 1003 mb (29.62 inches).
     
     
    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Tropical Storm Polo can be found in the Tropical
    Cyclone Discussion under AWIPS header MIATCDEP2 and WMO header
    WTPZ42 KNHC.
     
    WIND: Tropical storm conditions are possible by Tuesday night or 
    early Wednesday along portions of the southwestern coast of Mexico 
    where a Tropical Storm Watch is now in effect.
     
    RAINFALL: Tropical Storm Polo is expected to produce rainfall totals 
    of 4 to 8 inches, with isolated maximum totals up to 12 inches 
    across coastal portions of the Mexican states of Guerrero, 
    Michoacán, Colima, and Jalisco through Thursday. This rainfall may 
    produce life-threatening flooding and mudslides, especially in areas 
    of steep terrain. For a complete depiction of forecast rainfall 
    associated with Tropical Storm Polo, please see the National Weather 
    Service Storm Total Rainfall Graphic available at 
    hurricanes.gov/graphics_ep2.shtml?rainqpf
     
    SURF:  Swells generated by Polo are expected to begin affecting 
    portions of the coast of southwestern Mexico on Tuesday. These 
    swells are likely to cause life-threatening surf and rip current 
    conditions.  Please consult products from your local weather office.
     
     
    NEXT ADVISORY
    -------------
    Next intermediate advisory at 600 AM CST.
    Next complete advisory at 900 AM CST.
     
    $$
    Forecaster Cangialosi
     
    NNNN

    Source: NOAA / NHC

  2. Advisory Timeline #2

    Depression becomes tropical storm Polo. Forecast to rapidly intensify into a major hurricane.

    Official NHC advisory text
    ZCZC MIATCPEP2 ALL
    TTAA00 KNHC DDHHMM
     
    BULLETIN
    Tropical Storm Polo Advisory Number   2
    NWS National Hurricane Center Miami FL       EP172026
    900 PM CST Sun Sep 20 2026
     
    ...DEPRESSION BECOMES TROPICAL STORM POLO...
    ...FORECAST TO RAPIDLY INTENSIFY INTO A MAJOR HURRICANE...
     
     
    SUMMARY OF 900 PM CST...0300 UTC...INFORMATION
    ----------------------------------------------
    LOCATION...15.1N 104.6W
    ABOUT 270 MI...435 KM S OF MANZANILLO MEXICO
    ABOUT 270 MI...430 KM SW OF ZIHUATANEJO MEXICO
    MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
    PRESENT MOVEMENT...ENE OR 75 DEGREES AT 5 MPH...7 KM/H
    MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
     
     
    WATCHES AND WARNINGS
    --------------------
    Interests along the southwestern coast of Mexico should monitor the
    progress of this system.
     
     
    DISCUSSION AND OUTLOOK
    ----------------------
    At 900 PM CST (0300 UTC), the center of Tropical Storm Polo was 
    located near latitude 15.1 North, longitude 104.6 West. Polo is now 
    moving toward the east-northeast near 5 mph (7 km/h). A turn toward 
    the east is expected on Tuesday, followed by a decrease in forward 
    speed and a sharp turn toward the north and northwest on Wednesday.
     
    Maximum sustained winds have increased to near 40 mph (65 km/h) 
    with higher gusts. Rapid intensification is forecast over the next 
    few days, and Polo is expected to become a major hurricane by the 
    middle part of the week. 
     
    Tropical-storm-force winds extend outward up to 45 miles (75 km)
    from the center.
     
    The estimated minimum central pressure is 1004 mb (29.65 inches).
     
     
    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Tropical Storm Polo can be found in the Tropical 
    Cyclone Discussion under AWIPS header MIATCDEP2 and WMO header 
    WTPZ42 KNHC.
     
    RAINFALL: Tropical Storm Polo is expected to produce rainfall totals 
    of 4 to 8 inches, with isolated maximum totals up to 12 inches 
    across coastal portions of the Mexican states of Michoacán, Colima, 
    and Jalisco through Thursday. This rainfall may produce 
    life-threatening flooding and mudslides, especially in areas of 
    steep terrain.
    
    For a complete depiction of forecast rainfall associated with 
    Tropical Storm Polo, please see the National Weather Service Storm 
    Total Rainfall Graphic available at 
    hurricanes.gov/graphics_ep2.shtml?rainqpf
     
     
    NEXT ADVISORY
    -------------
    Next complete advisory at 300 AM CST.
     
    $$
    Forecaster Papin
     
    NNNN

    Source: NOAA / NHC

  3. Advisory Timeline #1

    New tropical depression develops to the south of Mexico.

    Official NHC advisory text
    ZCZC MIATCPEP2 ALL
    TTAA00 KNHC DDHHMM
     
    BULLETIN
    Tropical Depression Seventeen-E Advisory Number   1
    NWS National Hurricane Center Miami FL       EP172026
    300 PM CST Sun Sep 20 2026
     
    ...NEW TROPICAL DEPRESSION DEVELOPS TO THE SOUTH OF MEXICO...
     
     
    SUMMARY OF 300 PM CST...2100 UTC...INFORMATION
    ----------------------------------------------
    LOCATION...14.9N 104.9W
    ABOUT 285 MI...460 KM S OF MANZANILLO MEXICO
    MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
    PRESENT MOVEMENT...NNE OR 30 DEGREES AT 8 MPH...13 KM/H
    MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES
     
     
    WATCHES AND WARNINGS
    --------------------
    Interests along the southwestern coast of Mexico should monitor the
    progress of this system.
     
     
    DISCUSSION AND OUTLOOK
    ----------------------
    At 300 PM CST (2100 UTC), the center of Tropical Depression
    Seventeen-E was located near latitude 14.9 North, longitude 104.9
    West.  The depression is moving toward the north-northeast near 8 
    mph (13 km/h), and a turn toward the east is expected on Tuesday, 
    followed by a decrease in forward speed and a turn toward the north 
    and northwest on Wednesday.
    
    Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. 
    Significant strengthening is forecast, and the system is forecast to 
    become a tropical storm by Monday and a hurricane by Tuesday. 
    
    The estimated minimum central pressure is 1007 mb (29.74 inches).
     
     
    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Tropical Depression Seventeen-E can be found in 
    the Tropical Cyclone Discussion under AWIPS header 
    MIATCDEP2 and WMO header WTPZ42 KNHC. 
    
    RAINFALL: The depression is expected to produce rainfall totals of 
    4 to 8 inches, with isolated maximum totals up to 12 inches across 
    coastal portions of the Mexican states of Michoacán, Colima, and 
    Jalisco through Thursday. This rainfall may produce life-threatening 
    flooding and mudslides, especially in areas of steep terrain.
     
    NEXT ADVISORY
    -------------
    Next complete advisory at 900 PM CST.
     
    $$
    Forecaster Pasch
     
    NNNN

    Source: NOAA / NHC