656  
TCPA21 KNHC 040346  
STDCP1  
SATELLITE TROPICAL DISTURBANCE RAINFALL ESTIMATES  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
0345 UTC THU OCT 04 2018  
 
SYSTEM NAME DATE/TIME LOCATION  
----------- --------- --------  
HURRICANE WALAKA [01C] 04/0000 UTC 22N 168W  
 
RAINFALL ESTIMATED BY SATELLITE VIA QMORPH...  
24-HR RAINFALL MAXIMUM FROM 00-00 UTC- 20MM AT 20N 167W  
6-HR RAINFALL MAXIMUM FROM 18-00 UTC- 10MM AT 20N 167W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 18-00 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
171W-170W 170W-169W 169W-168W 168W-167W 167W-166W 166W-165W  
24N-25N 0- 0 0- 0 0- 0 0- 10 0- 0 0- 0  
23N-24N 0- 0 0- 0 0- 0 0- 0 0- 0 0- 0  
22N-23N 0- 10 0- 10 0- 10 0- 10 0- 0 0- 0  
21N-22N 0- 0 0- 40 10- 30 0- 20 0- 10 0- 10  
20N-21N 0- 10 0- 20 10- 30 0- 10 0- 10 0- 20  
19N-20N 0- 30 0- 60 0- 10 0- 10 0- 10 0- 10   
...............................................................
 
 
RAINFALL ESTIMATED BY SATELLITE VIA NRL-BLEND...  
24-HR RAINFALL MAXIMUM FROM 00-00 UTC- 0MM AT 0N 0W  
6-HR RAINFALL MAXIMUM FROM 18-00 UTC- 0MM AT 0N 0W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 18-00 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
171W-170W 170W-169W 169W-168W 168W-167W 167W-166W 166W-165W  
24N-25N 999-999 999-999 999-999 999-999 999-999 999-999  
23N-24N 999-999 999-999 999-999 999-999 999-999 999-999  
22N-23N 999-999 999-999 999-999 999-999 999-999 999-999  
21N-22N 999-999 999-999 999-999 999-999 999-999 999-999  
20N-21N 999-999 999-999 999-999 999-999 999-999 999-999  
19N-20N 999-999 999-999 999-999 999-999 999-999 999-999   
...............................................................
 
 
RAINFALL ESTIMATED FROM 18 UTC 3 OCT GFS MODEL RUN...  
24-HR RAINFALL MAXIMUM FROM 00-00 UTC- 190MM AT 23N 169W  
6-HR RAINFALL MAXIMUM FROM 18-00 UTC- 180MM AT 23N 169W  
RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 18-00 UTC...  
 
LATITUDE............................LONGITUDE......................   
...
 
171W-170W 170W-169W 169W-168W 168W-167W 167W-166W 166W-165W  
24N-25N 0- 0 0- 10 0- 0 0- 0 0- 0 0- 0  
23N-24N 0- 0 0- 10 0- 20 0- 20 0- 10 0- 10  
22N-23N 0- 10 0- 70 0- 70 10-110 10- 90 0- 10  
21N-22N 0- 40 10-100 20-240 20-240 10-160 0- 30  
20N-21N 0- 40 10- 80 40-240 20-240 20-120 0- 30  
19N-20N 10- 10 10- 40 0- 60 0- 50 10- 20 0- 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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