465  
WTNT31 KNHC 181440  
TCPAT1  
 
BULLETIN  
REMNANTS OF IOTA ADVISORY NUMBER 21  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL312020  
900 AM CST WED NOV 18 2020  
   
..IOTA DISSIPATES OVER CENTRAL AMERICA
 
   
..HEAVY RAIN THREAT CONTINUES
 
 
 
 
SUMMARY OF 900 AM CST...1500 UTC...INFORMATION  
----------------------------------------------  
LOCATION...13.8N 89.5W  
ABOUT 20 MI...35 KM WNW OF SAN SALVADOR EL SALVADOR  
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H  
PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H  
MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES  
 
 
WATCHES AND WARNINGS  
--------------------  
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.  
 
 
DISCUSSION AND OUTLOOK  
----------------------  
AT 900 AM CST (1500 UTC), THE REMNANTS OF IOTA WERE LOCATED NEAR  
LATITUDE 13.8 NORTH, LONGITUDE 89.5 WEST. THE REMNANTS ARE MOVING  
TOWARD THE WEST NEAR 12 MPH (19 KM/H), AND THIS GENERAL MOTION IS  
EXPECTED TO CONTINUE TODAY.  
 
MAXIMUM SUSTAINED WINDS ARE NEAR 30 MPH (45 KM/H) WITH HIGHER GUSTS.  
 
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1006 MB (29.71 INCHES).  
 
 
HAZARDS AFFECTING LAND  
----------------------  
KEY MESSAGES FOR IOTA CAN BE FOUND IN THE TROPICAL CYCLONE  
DISCUSSION UNDER AWIPS HEADER MIATCDAT1, WMO HEADER WTNT41 KNHC  
AND ON THE WEB AT WWW.HURRICANES.GOV/TEXT/MIATCDAT1.SHTML.  
 
RAINFALL: THE REMNANTS OF IOTA ARE EXPECTED TO PRODUCE THE  
FOLLOWING ADDITIONAL RAINFALL ACCUMULATIONS THROUGH THURSDAY:  
 
PORTIONS OF HONDURAS, GUATEMALA, SOUTHERN BELIZE: 4 TO 8 INCHES (100  
TO 200 MM), WITH ISOLATED MAXIMUM TOTALS OF 12 INCHES (300 MM).  
 
PORTIONS OF NICARAGUA AND EL SALVADOR: 2 TO 4 INCHES (50 TO 100 MM),  
WITH ISOLATED MAXIMUM TOTALS OF 6 INCHES (150 MM).  
 
THIS RAINFALL WILL LEAD TO SIGNIFICANT, LIFE-THREATENING FLASH  
FLOODING AND RIVER FLOODING, ALONG WITH MUDSLIDES IN AREAS OF HIGHER  
TERRAIN.  
 
SURF: SWELLS GENERATED BY IOTA WILL AFFECT MUCH OF THE COAST OF  
CENTRAL AMERICA AND THE YUCATAN PENINSULA DURING THE NEXT DAY OR SO.  
THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP  
CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER  
OFFICE.  
 
 
NEXT ADVISORY  
-------------  
THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE  
CENTER ON THIS SYSTEM. FOR ADDITIONAL INFORMATION ON THE REMNANTS,  
PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER  
SERVICE, UNDER AWIPS HEADER NFDHSFEPI, WMO HEADER FZPN02 KWBC, AND  
ON THE WEB AT OCEAN.WEATHER.GOV/SHTML/NFDHSFEPI.PHP  
 
 

 
FORECASTER PASCH  
 
 
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