623  
WTPZ32 KNHC 212050  
TCPEP2  
 
BULLETIN  
HURRICANE POLO ADVISORY NUMBER 5  
NWS NATIONAL HURRICANE CENTER MIAMI FL EP172026  
300 PM CST MON SEP 21 2026  
   
..NOAA HURRICANE HUNTER AIRCRAFT SHOWS POLO RAPIDLY INTENSIFYING  
 
 
 
SUMMARY OF 300 PM CST...2100 UTC...INFORMATION  
----------------------------------------------  
LOCATION...15.1N 102.7W  
ABOUT 290 MI...465 KM SSE OF MANZANILLO MEXICO  
ABOUT 195 MI...310 KM SSW OF ZIHUATANEJO MEXICO  
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H  
PRESENT MOVEMENT...ESE OR 110 DEGREES AT 6 MPH...9 KM/H  
MINIMUM CENTRAL PRESSURE...974 MB...28.77 INCHES  
 
 
WATCHES AND WARNINGS  
--------------------  
CHANGES WITH THIS ADVISORY:  
 
NONE.  
 
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 PM CST (2100 UTC), THE CENTER OF HURRICANE POLO WAS LOCATED  
BY A NOAA HURRICANE HUNTER AIRCRAFT NEAR LATITUDE 15.1 NORTH,  
LONGITUDE 102.7 WEST. POLO IS MOVING TOWARD THE EAST-SOUTHEAST NEAR  
6 MPH (9 KM/H). THIS GENERAL MOTION IS EXPECTED TONIGHT, WITH A  
SHARP TURN TOWARDS THE NORTHWEST AND WEST-NORTHWEST ANTICIPATED  
LATE TUESDAY INTO WEDNESDAY. ON THE FORECAST TRACK, THE CORE IS  
POLO IS EXPECTED TO BE NEAR OR SOUTH OF THE COAST OF SOUTHWESTERN  
MEXICO DURING THE NEXT FEW DAYS.  
 
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 85 MPH (140 KM/H)  
WITH HIGHER GUSTS. POLO IS EXPECTED TO CONTINUE RAPIDLY  
INTENSIFYING, BECOMING A MAJOR HURRICANE BY TUESDAY, WITH FURTHER  
INTENSIFICATION LIKELY THOUGH MIDWEEK.  
 
HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 25 MILES (35 KM) FROM THE  
CENTER AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 70 MILES  
(110 KM).  
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 974 MB (28.77 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 POSSIBLE WITHIN THE WATCH  
AREA BY TUESDAY NIGHT OR EARLY WEDNESDAY.  
 
RAINFALL: 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 AND MICHOACáN THROUGH  
THURSDAY. THIS RAINFALL MAY PRODUCE LIFE-THREATENING FLOODING AND  
MUDSLIDES, ESPECIALLY IN AREAS OF STEEP TERRAIN. RAINFALL OF 3 TO 6  
INCHES IS POSSIBLE IN COASTAL PORTIONS OF OAXACA, COLIMA, AND  
JALISCO THROUGH THURSDAY.  
 
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 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 PM CST.  
NEXT COMPLETE ADVISORY AT 900 PM CST.  
 
 
FORECASTER BLAKE  
 
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