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Past storm

Remnant Low Polo

Final NHC advisory

NHC issued its final advisory for Polo. The final official forecast graphic, interactive track, wind animation based on NOAA data, and recent official advisories are preserved below.

Highest classification reached: Category 5 HurricaneSep 20–30, 2026

Polo advisory updated:

Source: NOAA / National Hurricane Center (NHC)

Key Facts

Type
Remnant Low
Max sustained wind
35 mph
Min pressure
996 mb
Movement
NE 23 mph
Storm center to BCS
333 mi
Center to Mainland
0 mi

Track distance between reported center positions is estimated. Center distance does not show how far winds and rain can reach.

Historical Track

PoloRemnant LowMax wind35 mph

Map sources: NHC storm track and coneNOAA GFS wind. Visualization by BajaStorms.

Official Graphics

Official National Hurricane Center final forecast cone and track for Polo.
Official NHC forecast cone and track (final advisory).NHC ↗
Interactive GuidanceSep 29, 5:00 PM GMT-7
20°N30°N40°N50°N120°W110°W100°W90°W80°W70°W60°W

Constructed guidance: Not the official NHC forecast

Advisory Timeline

  1. Advisory Timeline #38

    POLO DISSIPATES OVER NORTHWESTERN MEXICO. As of 8:00 PM MST Tue Sep 29 the center of Polo was located near 30.5, -108.0 with movement NE at 23 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 35 mph.

    Official NHC advisory text
    ...POLO DISSIPATES OVER NORTHWESTERN MEXICO... As of 8:00 PM MST Tue Sep 29 the center of Polo was located near 30.5, -108.0 with movement NE at 23 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 35 mph.

    Source: NOAA / NHC

  2. Advisory Timeline #37A

    Polo rapidly weakening over northwestern Mexico. Heavy rains continue.

    Official NHC advisory text
    ZCZC MIATCPEP2 ALL
    TTAA00 KNHC DDHHMM
     
    BULLETIN
    Tropical Storm Polo Intermediate Advisory Number 37A
    NWS National Hurricane Center Miami FL       EP172026
    500 PM MST Tue Sep 29 2026
     
    ...POLO RAPIDLY WEAKENING OVER NORTHWESTERN MEXICO...
    ...HEAVY RAINS CONTINUE...
     
     
    SUMMARY OF 500 PM MST...0000 UTC...INFORMATION
    ----------------------------------------------
    LOCATION...30.0N 108.5W
    ABOUT 200 MI...320 KM NE OF GUAYMAS MEXICO
    MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
    PRESENT MOVEMENT...NE OR 40 DEGREES AT 21 MPH...33 KM/H
    MINIMUM CENTRAL PRESSURE...996 MB...29.41 INCHES
     
     
    WATCHES AND WARNINGS
    -------------------- 
    There are no coastal watches or warnings in effect.
     
    Interests in northwestern Mexico, southern New Mexico, and far
    western Texas should continue to monitor the progress of Polo.
     
    For storm information specific to your area, please monitor
    products issued by your national meteorological service.
     
     
    DISCUSSION AND OUTLOOK
    ----------------------
    At 500 PM MST (0000 UTC), the center of Tropical Storm Polo was
    located near latitude 30.0 North, longitude 108.5 West. Polo is
    moving toward the northeast near 21 mph (33 km/h) and this motion is
    expected to continue tonight.
     
    Maximum sustained winds have decreased to near 45 mph (75 km/h) 
    with higher gusts. Polo is expected to dissipate within the next 
    several hours.
     
    Tropical-storm-force winds extend outward up to 60 miles (95 km)
    from the center.
     
    The estimated minimum central pressure is 996 mb (29.41 inches).
     
     
    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Polo can be found in the Tropical Cyclone
    Discussion under AWIPS header MIATCDEP2 and WMO header WTPZ42 KNHC.
     
    WIND: Tropical storm conditions, especially in gusts, are still 
    occurring well inland over northwestern Mexico.
     
    A Wind Advisory is in effect for portions of southern New Mexico and
    far western Texas where strong gusty winds are possible late today
    and tonight in association with Polo’s remnants. Refer to products
    issued by your local National Weather Service Forecast Office for
    additional information.
     
    RAINFALL: Polo is expected to produce rainfall totals of 4 to 6 
    inches across southern and central portions of Sonora with isolated 
    maximum totals of 8 inches. This rainfall may produce 
    life-threatening flooding and mudslides, especially in areas of 
    steep terrain.
     
    For a complete depiction of forecast rainfall associated with 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 800 PM MST.
     
    $$
    Forecaster Cangialosi
     
    NNNN

    Source: NOAA / NHC

  3. Advisory Timeline #37

    Polo weakens to a tropical storm as it moves farther inland.

    Official NHC advisory text
    ZCZC MIATCPEP2 ALL CCA
    TTAA00 KNHC DDHHMM
     
    BULLETIN
    Tropical Storm Polo Advisory Number  37...Corrected
    NWS National Hurricane Center Miami FL       EP172026
    200 PM MST Tue Sep 29 2026
    
    Corrected the Next Advisory section
     
    ...POLO WEAKENS TO A TROPICAL STORM AS IT MOVES FARTHER INLAND...
    ...STRONG WINDS AND HEAVY RAINS SPREADING ACROSS NORTHWESTERN
    MEXICO TOWARD SOUTHERN NEW MEXICO AND FAR WESTERN TEXAS...
     
     
    SUMMARY OF 200 PM MST...2100 UTC...INFORMATION
    ----------------------------------------------
    LOCATION...29.0N 109.7W
    ABOUT 100 MI...160 KM NE OF GUAYMAS MEXICO
    ABOUT 230 MI...375 KM NNE OF LORETO MEXICO
    MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
    PRESENT MOVEMENT...NE OR 40 DEGREES AT 21 MPH...33 KM/H
    MINIMUM CENTRAL PRESSURE...992 MB...29.30 INCHES
     
     
    WATCHES AND WARNINGS
    --------------------
    CHANGES WITH THIS ADVISORY:
     
    The government of Mexico has discontinued all coastal warnings and
    watches.
     
    SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
     
    There are no coastal watches or warnings in effect.
     
    Interests in northwestern Mexico, southern New Mexico, and far
    western Texas should continue to monitor the progress of Polo.
     
     
    DISCUSSION AND OUTLOOK
    ----------------------
    At 200 PM MST (2100 UTC), the center of Tropical Storm Polo was 
    located near latitude 29.0 North, longitude 109.7 West. Polo is 
    moving toward the northeast near 21 mph (33 km/h) and this motion is 
    expected to continue with an additional increase in forward speed 
    through tonight. On the forecast track, the center of Polo will 
    cross northwestern Mexico this afternoon and evening before 
    dissipating. The remnants of Polo should continue quickly 
    northeastward, passing over southern New Mexico and far western 
    Texas late tonight or early Tuesday.
     
    Maximum sustained winds are near 65 mph (100 km/h) with higher 
    gusts. Rapid weakening is expected as the center of Polo moves 
    farther inland, and the surface circulation is expected to dissipate 
    tonight. However, the remnants of Polo are likely bring gusty winds 
    to portions of southern New Mexico and far western Texas late 
    tonight and early Tuesday.
     
    Tropical-storm-force winds extend outward up to 60 miles (95 km)
    from the center.
     
    The estimated minimum central pressure is 992 mb (29.30 inches).
     
     
    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Polo can be found in the Tropical Cyclone
    Discussion under AWIPS header MIATCDEP2 and WMO header WTPZ42 KNHC.
     
    WIND: Tropical storm conditions are spreading across northwestern
    Mexico near the center of Polo and will continue spread
    northeastward tonight.
     
    A Wind Advisory is in effect for portions of southern New Mexico and
    far western Texas where strong gusty winds are possible late today
    and tonight in association with Polo’s remnants. Refer to products
    issued by your local National Weather Service Forecast Office for
    additional information.
     
    RAINFALL: Polo is expected to produce rainfall totals of 4 to 6
    inches across southern and central portions of Sonora with isolated
    maximum totals of 8 inches. This rainfall may produce
    life-threatening flooding and mudslides, especially in areas of
    steep terrain.
     
    For a complete depiction of forecast rainfall associated with Polo,
    please see the National Weather Service Storm Total Rainfall Graphic
    available at hurricanes.gov/graphics_ep2.shtml?rainqpf
     
    SURF: Swells generated by Polo will continue to affect portions of
    the coast of the Baja California peninsula and northwestern Mexico
    during the next day or so. These swells are likely to cause
    life-threatening surf, rip currents, and coastal flooding. Please
    consult products from your local weather office.
     
     
    NEXT ADVISORY
    -------------
    Next intermediate advisory at 500 PM MST.
    Next complete advisory at 800 PM MST.
     
    $$
    Forecaster Beven
     
    NNNN

    Source: NOAA / NHC

  4. Advisory Timeline #36A

    Polo makes landfall a little east of guaymas Mexico.

    Official NHC advisory text
    ZCZC MIATCPEP2 ALL
    TTAA00 KNHC DDHHMM
     
    BULLETIN
    Hurricane Polo Intermediate Advisory Number 36A
    NWS National Hurricane Center Miami FL       EP172026
    1100 AM MST Tue Sep 29 2026
     
    ...POLO MAKES LANDFALL A LITTLE EAST OF GUAYMAS MEXICO...
    ...HIGH WINDS AND HEAVY RAINS EXPECTED IN PORTIONS OF 
    NORTHWESTERN MEXICO...
     
     
    SUMMARY OF 1100 AM MST...1800 UTC...INFORMATION
    -----------------------------------------------
    LOCATION...28.0N 110.6W
    ABOUT 20 MI...30 KM E OF GUAYMAS MEXICO
    ABOUT 145 MI...235 KM NNE OF LORETO MEXICO
    MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
    PRESENT MOVEMENT...NE OR 40 DEGREES AT 17 MPH...28 KM/H
    MINIMUM CENTRAL PRESSURE...984 MB...29.06 INCHES
     
     
    WATCHES AND WARNINGS
    --------------------
    CHANGES WITH THIS ADVISORY:
     
    The Government of Mexico has discontinued all warnings for the east
    coast of Baja California Sur.
     
    SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
     
    A Hurricane Warning is in effect for...
    * Mainland Mexico from Bahia Kino to Huatabampito
     
    A Hurricane Watch is in effect for...
    * Mainland Mexico south of Huatabampito to Topolobampo
     
    A Tropical Storm Warning is in effect for...
    * Mainland Mexico south of Huatabampito to Topolobampo
     
    A Hurricane Warning means that hurricane conditions are expected
    somewhere within the warning area, in this case in the next few
    hours
     
    A Hurricane Watch means that hurricane conditions are possible
    within the watch area, in this case in the next several hours.
     
    A Tropical Storm Warning means that tropical storm conditions are
    expected somewhere within the warning area.
     
    Interests in the remainder of Sonora and northern Sinaloa should
    monitor the progress of Polo.
     
    For storm information specific to your area, please monitor
    products issued by your national meteorological service.
     
     
    DISCUSSION AND OUTLOOK
    ----------------------
    At 1100 AM MST (1800 UTC), the center of Hurricane Polo was located
    just inland over the Mexican state of Sonora near latitude 28.0 
    North, longitude 110.6 West. Polo is moving toward the northeast 
    near 17 mph (28 km/h) and this motion is expected to continue with 
    an increase in forward speed today. On the forecast track, will 
    move farther inland over the southern portion of the state of Sonora 
    this afternoon.
     
    Maximum sustained winds are near 75 mph (120 km/h) with higher
    gusts.  Rapid weakening is expected as the center of Polo moves 
    farther inland.
     
    Hurricane-force winds extend outward up to 30 miles (45 km) from
    the center and tropical-storm-force winds extend outward up to 90
    miles (150 km). The Mexican Navy weather station in Guaymas 
    recently reported sustained winds of 44 mph (72 kn/h) and a wind 
    gust of 56 mph (90 km/h).
     
    The estimated minimum central pressure is 984 mb (29.06 inches).
     
     
    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Polo can be found in the Tropical Cyclone
    Discussion under AWIPS header MIATCDEP2 and WMO header WTPZ42 KNHC.
     
    WIND: Hurricane conditions are expected in the warning area and
    possible in the watch area for a few more hours. Hurricane and
    tropical storm conditions are expected over northwestern Mexico
    near the center of Polo this afternoon.
     
    A Wind Advisory is in effect for portions of southern New Mexico and
    far western Texas where strong gusty winds are possible late today
    and tonight in association with Polo’s remnants. Refer to products
    issued by your local National Weather Service Forecast Office for
    additional information.
     
    RAINFALL: Polo is expected to produce rainfall totals of 4 to 6
    inches across southern and central portions of Sonora with isolated
    maximum totals of 8 inches. An additional 1 to 2 inches of rainfall
    is expected across Baja California Sur. This rainfall may produce
    life-threatening flooding and mudslides, especially in areas of
    steep terrain.
     
    For a complete depiction of forecast rainfall associated with Polo,
    please see the National Weather Service Storm Total Rainfall Graphic
    available at hurricanes.gov/graphics_ep2.shtml?rainqpf
     
    SURGE: A storm surge is expected to produce significant coastal
    flooding in areas of onshore winds. Near the coast, the surge will
    be accompanied by large and destructive waves.
     
    SURF: Swells generated by Polo will continue to affect portions of
    the coast of the Baja California peninsula and northwestern Mexico
    during the next day or so. These swells are likely to cause
    life-threatening surf, rip currents, and coastal flooding. Please
    consult products from your local weather office.
     
     
    NEXT ADVISORY
    -------------
    Next complete advisory at 200 PM MST.
     
    $$
    Forecaster Beven
     
    NNNN

    Source: NOAA / NHC

  5. Advisory Timeline #36

    Polo about to make landfall near guaymas Mexico. Conditions deteriorating in the landfall area.

    Official NHC advisory text
    ZCZC MIATCPEP2 ALL
    TTAA00 KNHC DDHHMM
     
    BULLETIN
    Hurricane Polo Advisory Number  36
    NWS National Hurricane Center Miami FL       EP172026
    800 AM MST Tue Sep 29 2026
     
    ...POLO ABOUT TO MAKE LANDFALL NEAR GUAYMAS MEXICO...
    ...CONDITIONS DETERIORATING IN THE LANDFALL AREA...
     
     
    SUMMARY OF 800 AM MST...1500 UTC...INFORMATION
    ----------------------------------------------
    LOCATION...27.8N 110.9W
    ABOUT 15 MI...20 KM S OF GUAYMAS MEXICO
    ABOUT 130 MI...205 KM NNE OF LORETO MEXICO
    MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
    PRESENT MOVEMENT...NE OR 40 DEGREES AT 17 MPH...28 KM/H
    MINIMUM CENTRAL PRESSURE...981 MB...28.97 INCHES
     
     
    WATCHES AND WARNINGS
    --------------------
    CHANGES WITH THIS ADVISORY:
     
    The Government of Mexico has discontinued all warnings for the west 
    coast of Baja California Sur. The Government of Mexico has changed 
    the Hurricane Warning to a Tropical Storm Warning for the east 
    coast of Baja California Sur from Loreto to Santa Rosalia, and has 
    discontinued all other watches and warnings on the east coast of 
    Baja California Sur.
     
    SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
     
    A Hurricane Warning is in effect for...
    * Mainland Mexico from Bahia Kino to Huatabampito
     
    A Hurricane Watch is in effect for...
    * Mainland Mexico south of Huatabampito to Topolobampo
     
    A Tropical Storm Warning is in effect for...
    * East coast of Baja California Sur from Loreto to Santa Rosalia
    * Mainland Mexico south of Huatabampito to Topolobampo
     
    A Hurricane Warning means that hurricane conditions are expected
    somewhere within the warning area, in this case in the next few 
    hours
     
    A Hurricane Watch means that hurricane conditions are possible
    within the watch area, in this case in the next several hours.
     
    A Tropical Storm Warning means that tropical storm conditions are
    expected somewhere within the warning area.
     
    Interests in the remainder of Sonora and northern Sinaloa should
    monitor the progress of Polo.
     
    For storm information specific to your area, please monitor
    products issued by your national meteorological service.
     
     
    DISCUSSION AND OUTLOOK
    ----------------------
    At 800 AM MST (1500 UTC), the center of Hurricane Polo was located
    near latitude 27.8 North, longitude 110.9 West. Polo is moving
    toward the northeast near 17 mph (28 km/h) and this motion is
    expected to continue with an increase in forward speed today. On 
    the forecast track, the core of Polo will move inland over southern 
    Sonora near Guaymas during the next few hours and cross portions of 
    northwestern Mexico this afternoon.
     
    Maximum sustained winds are near 75 mph (120 km/h) with higher
    gusts.  Little change in strength is expected before landfall. 
    Rapid weakening is expected after landfall as the center crosses 
    northwestern Mexico.
     
    Hurricane-force winds extend outward up to 30 miles (45 km) from the
    center and tropical-storm-force winds extend outward up to 90 miles
    (150 km). The Mexican Navy automated station in Guaymas recently 
    reported a wind gust of 52 mph (84 km/h).
     
    The estimated minimum central pressure is 981 mb (28.97 inches).
     
     
    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Polo can be found in the Tropical Cyclone
    Discussion under AWIPS header MIATCDEP2 and WMO header WTPZ42 KNHC.
     
    WIND: Hurricane conditions are expected in the warning area and
    possible in the watch area during the next few hours. Hurricane and 
    tropical storm conditions are expected over northwestern Mexico 
    near the center of Polo this afternoon.
     
    A Wind Advisory is in effect for portions of southern New Mexico and
    far western Texas where strong gusty winds are possible late today
    and tonight in association with Polo’s remnants. Refer to products
    issued by your local National Weather Service Forecast Office for
    additional information.
     
    RAINFALL: Polo is expected to produce rainfall totals of 4 to 6 
    inches across southern and central portions of Sonora with isolated 
    maximum totals of 8 inches. An additional 1 to 2 inches of rainfall 
    is expected across Baja California Sur. This rainfall may produce 
    life-threatening flooding and mudslides, especially in areas of 
    steep terrain.
    
    For a complete depiction of forecast rainfall associated with Polo, 
    please see the National Weather Service Storm Total Rainfall Graphic 
    available at hurricanes.gov/graphics_ep2.shtml?rainqpf
     
    SURGE: A storm surge is expected to produce significant coastal
    flooding in areas of onshore winds. Near the coast, the surge will
    be accompanied by large and destructive waves.
     
    SURF: Swells generated by Polo will continue to affect portions of
    the coast of the Baja California peninsula and northwestern Mexico
    during the next day or so. These swells are likely to cause
    life-threatening surf, rip currents, and coastal flooding. Please
    consult products from your local weather office.
     
     
    NEXT ADVISORY
    -------------
    Next intermediate advisory at 1100 AM MST.
    Next complete advisory at 200 PM MST.
     
    $$
    Forecaster Beven
     
    NNNN

    Source: NOAA / NHC