777  
WTNT41 KNHC 181444  
TCDAT1  
 
REMNANTS OF IOTA DISCUSSION NUMBER 21  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL312020  
900 AM CST WED NOV 18 2020  
 
ALTHOUGH THE SYSTEM STILL HAS BROAD MID-LEVEL ROTATION, SYNOPTIC  
OBSERVATIONS FROM CENTRAL AMERICA SHOW THAT THE SURFACE CIRCULATION  
OF IOTA HAS DISSIPATED. ITS REMNANTS ARE LOCATED SOMEWHERE NEAR EL  
SALVADOR.  
 
ALTHOUGH THE REMNANTS OF IOTA ARE LIKELY TO MOVE INTO THE EASTERN  
NORTH PACIFIC DURING THE NEXT DAY OR SO, THE GLOBAL MODELS DO NOT  
SHOW REGENERATION OF THE SYSTEM OVER THAT BASIN.  
 
IOTA IS STILL EXPECTED TO PRODUCE VERY SERIOUS FLASH FLOODING AND  
MUDSLIDES, WITH POTENTIALLY CATASTROPHIC EFFECTS, OVER  
PORTIONS OF CENTRAL AMERICA.  
 
THIS IS THE LAST ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER  
ON IOTA.  
 
 
KEY MESSAGES:  
 
1. LIFE-THREATENING FLASH FLOODING AND RIVER FLOODING IS EXPECTED  
THROUGH THURSDAY ACROSS PORTIONS OF CENTRAL AMERICA DUE TO HEAVY  
RAINFALL FROM THE REMNANTS OF IOTA. FLOODING AND MUDSLIDES ACROSS  
PORTIONS OF HONDURAS, NICARAGUA AND GUATEMALA COULD BE EXACERBATED  
BY SATURATED SOILS IN PLACE, RESULTING IN SIGNIFICANT TO  
POTENTIALLY CATASTROPHIC IMPACTS.  
 
 
FORECAST POSITIONS AND MAX WINDS  
 
INIT 18/1500Z 13.8N 89.5W 25 KT 30 MPH...REMNANTS OF IOTA  
12H 19/0000Z...DISSIPATED  
 

 
FORECASTER PASCH  
 
 
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