787  
TCPA21 KNHC 302146  
STDCP1  
SATELLITE TROPICAL DISTURBANCE RAINFALL ESTIMATES  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
2145 UTC SUN SEP 30 2018  
 
SYSTEM NAME DATE/TIME LOCATION  
----------- --------- --------  
TROPICAL STORM WALAKA [01C] 30/1800 UTC 12N 165W  
 
RAINFALL ESTIMATED BY SATELLITE VIA QMORPH...  
24-HR RAINFALL MAXIMUM FROM 18-18 UTC- 10MM AT 12N 166W  
6-HR RAINFALL MAXIMUM FROM 12-18 UTC- 0MM AT 12N 166W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 12-18 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
168W-167W 167W-166W 166W-165W 165W-164W 164W-163W 163W-162W  
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- 0 0- 10 0- 0 0- 0 0- 0 0- 0  
11N-12N 0- 0 0- 10 0- 0 0- 0 0- 0 0- 0  
10N-11N 0- 10 0- 10 0- 10 0- 0 0- 10 0- 20  
9N-10N 0- 20 0- 0 0- 0 0- 10 0- 10 0- 0   
...............................................................
 
 
RAINFALL ESTIMATED BY SATELLITE VIA NRL-BLEND...  
24-HR RAINFALL MAXIMUM FROM 18-18 UTC- 0MM AT 0N 0W  
6-HR RAINFALL MAXIMUM FROM 12-18 UTC- 0MM AT 0N 0W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 12-18 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
168W-167W 167W-166W 166W-165W 165W-164W 164W-163W 163W-162W  
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 12 UTC 30 SEP GFS MODEL RUN...  
24-HR RAINFALL MAXIMUM FROM 18-18 UTC- 260MM AT 13N 167W  
6-HR RAINFALL MAXIMUM FROM 12-18 UTC- 90MM AT 12N 164W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 12-18 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
168W-167W 167W-166W 166W-165W 165W-164W 164W-163W 163W-162W  
14N-15N 0- 10 0- 10 0- 10 0- 10 0- 10 0- 10  
13N-14N 0- 0 0- 10 10- 20 0- 70 0- 30 0- 10  
12N-13N 0- 0 0- 10 10- 10 10- 40 30-120 0- 10  
11N-12N 0- 10 0- 10 0- 20 20- 40 10- 50 10- 30  
10N-11N 10- 20 10- 20 20- 40 10- 30 10- 10 20- 60  
9N-10N 0- 10 0- 10 0- 10 0- 10 10- 10 20- 60   
...............................................................
 
 
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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