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TROPICAL STORM ISIDORE INTERMEDIATE ADVISORY NUMBER  30A
NATIONAL WEATHER SERVICE MIAMI FL
1 PM CDT MON SEP 23 2002

...ISIDORE NOW NEARLY STATIONARY OVER THE YUCATAN PENINSULA OF 
MEXICO...
 
A TROPICAL STORM WARNING REMAINS IN EFFECT ALONG THE GULF COAST
OF MEXICO FROM CABO CATOCHE TO VERACRUZ.
 
AT 1 PM CDT...1800Z...THE CENTER OF TROPICAL STORM ISIDORE WAS
LOCATED NEAR LATITUDE 20.2 NORTH...LONGITUDE  89.4 WEST OR ABOUT
55 MILES...90 KM...SOUTH-SOUTHEAST OF MERIDA MEXICO.
 
ISIDORE IS CURRENTLY NEARLY STATIONARY.  A SLOW NORTHWESTWARD
MOTION IS EXPECTED TO BEGIN LATER TODAY OR TONIGHT.  THIS MOTION
WILL KEEP THE CENTER OVER THE NORTHWESTERN YUCATAN PENINSULA
TODAY...POSSIBLY EMERGING OVER THE GULF OF MEXICO TONIGHT.
 
MAXIMUM SUSTAINED WINDS HAVE DECREASED NEAR  60 MPH...95 KM/HR...
WITH HIGHER GUSTS.  FURTHER WEAKENING IS FORECAST WHILE THE CENTER
REMAINS OVER LAND.  HOWEVER...ISIDORE IS LIKELY TO STRENGTHEN AGAIN
WHEN THE CENTER REACHES THE GULF OF MEXICO.
 
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES
...325 KM FROM THE CENTER.
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS  964 MB...28.47 INCHES.

VERY HEAVY RAINS ARE AFFECTING THE YUCATAN PENINSULA...OTHER 
PORTIONS OF EASTERN MEXICO...AND THE NORTHERN PORTIONS OF GUATEMALA
AND BELIZE.  ADDITIONAL RAINFALL AMOUNTS OF 10 TO 15 INCHES ARE 
LIKELY.  

COASTAL STORM SURGE FLOODING OF 3 TO 5 FEET ABOVE NORMAL TIDE 
LEVELS ALONG WITH BATTERING WAVES CONTINUES IN AREAS OF ONSHORE 
WINDS OVER THE NORTHWEST YUCATAN PENINSULA.  ONSHORE WINDS WILL 
PRODUCE STORM SURGE FLOODING OF 2 TO 4 FEET ABOVE NORMAL ELSEWHERE 
ALONG THE COAST OF MEXICO FROM CAMPECHE WESTWARD TO NEAR VERACRUZ.
TIDES ARE RUNNING 1 TO 2 FEET ABOVE NORMAL ALONG MUCH OF THE
REMAINDER OF THE GULF COAST...AND THIS COMBINED WITH LARGE SWELLS
GENERATED BY ISIDORE MAY CAUSE SOME COASTAL FLOODING AND BEACH
EROSION.

REPEATING THE 1 PM CDT POSITION...20.2 N... 89.4 W.  MOVEMENT
TOWARD...NEARLY STATIONARY.  MAXIMUM SUSTAINED
WINDS... 60 MPH.  MINIMUM CENTRAL PRESSURE... 964 MB.
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER
AT 4 PM CDT.
 
FORECASTER BEVEN
 
 
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