311  
TCPA21 KNHC 301545  
STDCP1  
SATELLITE TROPICAL DISTURBANCE RAINFALL ESTIMATES  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1545 UTC SUN SEP 30 2018  
 
SYSTEM NAME DATE/TIME LOCATION  
----------- --------- --------  
TROPICAL STORM WALAKA [01C] 30/1200 UTC 12N 163W  
 
RAINFALL ESTIMATED BY SATELLITE VIA QMORPH...  
24-HR RAINFALL MAXIMUM FROM 12-12 UTC- 20MM AT 14N 160W  
6-HR RAINFALL MAXIMUM FROM 06-12 UTC- 0MM AT 14N 160W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 06-12 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
166W-165W 165W-164W 164W-163W 163W-162W 162W-161W 161W-160W  
14N-15N 0- 0 0- 0 0- 0 0- 0 0- 0 0- 0  
13N-14N 0- 0 0- 0 0- 0 0- 0 0- 0 0- 0  
12N-13N 0- 10 0- 0 0- 0 0- 0 0- 0 0- 10  
11N-12N 0- 10 0- 0 0- 0 0- 0 0- 0 0- 0  
10N-11N 0- 10 0- 0 0- 0 0- 0 0- 0 0- 10  
9N-10N 0- 10 0- 10 0- 0 0- 10 0- 20 0- 10   
...............................................................
 
 
RAINFALL ESTIMATED BY SATELLITE VIA NRL-BLEND...  
24-HR RAINFALL MAXIMUM FROM 12-12 UTC- 0MM AT 0N 0W  
6-HR RAINFALL MAXIMUM FROM 06-12 UTC- 0MM AT 0N 0W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 06-12 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
166W-165W 165W-164W 164W-163W 163W-162W 162W-161W 161W-160W  
14N-15N 999-999 999-999 999-999 999-999 999-999 999-999  
13N-14N 999-999 999-999 999-999 999-999 999-999 999-999  
12N-13N 999-999 999-999 999-999 999-999 999-999 999-999  
11N-12N 999-999 999-999 999-999 999-999 999-999 999-999  
10N-11N 999-999 999-999 999-999 999-999 999-999 999-999  
9N-10N 999-999 999-999 999-999 999-999 999-999 999-999   
...............................................................
 
 
RAINFALL ESTIMATED FROM 06 UTC 30 SEP GFS MODEL RUN...  
24-HR RAINFALL MAXIMUM FROM 12-12 UTC- 230MM AT 13N 166W  
6-HR RAINFALL MAXIMUM FROM 06-12 UTC- 80MM AT 13N 162W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 06-12 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
166W-165W 165W-164W 164W-163W 163W-162W 162W-161W 161W-160W  
14N-15N 0- 0 0- 10 0- 10 0- 10 0- 10 0- 10  
13N-14N 0- 0 0- 10 10- 10 0- 10 0- 0 0- 0  
12N-13N 0- 10 0- 10 0- 10 10- 30 10- 50 0- 10  
11N-12N 0- 0 0- 10 10- 40 20- 40 40- 60 10- 40  
10N-11N 0- 10 0- 30 10- 30 20- 30 30- 50 10- 40  
9N-10N 10- 20 10- 20 0- 10 10- 10 20- 20 10- 20   
...............................................................
 
 
DIFFERENCES BETWEEN THE SATELLITE AND MODEL-DERIVED RAINFALL  
ESTIMATES INDICATE UNCERTAINTY IN THE AMOUNT OF RAIN RECEIVED  
 
RAINFALL MAY BE UNDERESTIMATED ON THE WINDWARD SIDE OF TERRAIN  
 
PLEASE SEE THE LATEST TROPICAL CYCLONE PUBLIC ADVISORY FOR THE  
OFFICIAL RAINFALL FORECAST FOR TROPICAL CYCLONES  
 
FOR ADDITIONAL INFORMATION PLEASE VISIT  
HTTP://WWW.HURRICANES.GOV/MARINE/RAINFALL  
 
FORECASTER TAFB  
 

 
 
 
 
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