994
WTPZ35 KNHC 241146
TCPEP5
BULLETIN
TROPICAL STORM JOHN INTERMEDIATE ADVISORY NUMBER 8A
NWS NATIONAL HURRICANE CENTER MIAMI FL EP102024
600 AM CST TUE SEP 24 2024
...LIFE-THREATENING FLASH FLOODING POSSIBLE ACROSS PORTIONS OF
SOUTHERN MEXICO DURING THE NEXT FEW DAYS...
SUMMARY OF 600 AM CST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...17.7N 100.3W
ABOUT 60 MI...100 KM NNW OF ACAPULCO MEXICO
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
THE GOVERNMENT OF MEXICO HAS ADJUSTED THE TROPICAL STORM
WARNING WESTWARD FROM PUNTA MALDONADO TO ZIHUATANEJO.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* PUNTA MALDONADO TO ZIHUATANEJO
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA, IN THIS CASE OVER THE
NEXT FEW HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA, PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND OUTLOOK
----------------------
AT 600 AM CST (1200 UTC), THE CENTER OF TROPICAL STORM JOHN WAS
LOCATED NEAR LATITUDE 17.7 NORTH, LONGITUDE 100.3 WEST. JOHN IS
MOVING TOWARD THE NORTHWEST NEAR 8 MPH (13 KM/H). A SLOW
WESTWARD MOTION IS EXPECTED DURING THE NEXT FEW DAYS.
MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH (85 KM/H) WITH HIGHER
GUSTS. CONTINUED RAPID WEAKENING IS ANTICIPATED, AND JOHN IS
EXPECTED TO BECOME A TROPICAL DEPRESSION LATER TODAY.
TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 45 MILES (75 KM)
FROM THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 999 MB (29.50 INCHES).
HAZARDS AFFECTING LAND
----------------------
KEY MESSAGES FOR JOHN CAN BE FOUND IN THE TROPICAL CYCLONE
DISCUSSION UNDER AWIPS HEADER MIATCDEP5 AND WMO HEADER WTPZ45 KNHC
AND ON THE WEB AT HURRICANES.GOV/TEXT/MIATCDEP5.SHTML
RAINFALL: THROUGH THURSDAY, TROPICAL STORM JOHN IS EXPECTED TO
PRODUCE 6 TO 12 INCHES OF RAIN WITH ISOLATED TOTALS AROUND 15 INCHES
ACROSS THE COASTAL AREAS OF CHIAPAS. IN AREAS ALONG AND NEAR THE
OAXACA COAST TO SOUTHEAST GUERRERO, BETWEEN 10 AND 20 INCHES OF RAIN
WITH ISOLATED TOTALS NEAR 30 INCHES CAN BE EXPECTED THROUGH
THURSDAY.
FOR A COMPLETE DEPICTION OF FORECAST RAINFALL ASSOCIATED WITH
TROPICAL STORM JOHN, PLEASE SEE THE NATIONAL WEATHER SERVICE STORM
TOTAL RAINFALL GRAPHIC, AVAILABLE AT
HURRICANES.GOV/GRAPHICS_EP5.SHTML?RAINQPF
WIND: TROPICAL STORM CONDITIONS ARE ONGOING WITHIN PORTIONS OF THE
TROPICAL STORM WARNING AREA AND SHOULD CONTINUE FOR THE NEXT FEW
HOURS. WIND SPEEDS ATOP AND ON THE WINDWARD SIDES OF HILLS AND
MOUNTAINS ARE OFTEN UP TO 30 PERCENT STRONGER THAN THE NEAR-SURFACE
WINDS INDICATED IN THIS ADVISORY, AND IN SOME ELEVATED LOCATIONS
COULD BE EVEN GREATER.
SURF: SWELLS ASSOCIATED WITH JOHN ARE FORECAST TO CONTINUE
AFFECTING THE COAST OF SOUTHERN MEXICO DURING THE NEXT DAY OR SO,
WITH THE POTENTIAL FOR DANGEROUS SURF AND RIP CURRENTS. PLEASE SEE
LOCAL STATEMENTS FOR MORE INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY AT 900 AM CST.
FORECASTER CANGIALOSI
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