315 TCNT24 KNHC 182146 STDAT4 SATELLITE TROPICAL DISTURBANCE RAINFALL ESTIMATES NWS NATIONAL HURRICANE CENTER MIAMI FL 2145 UTC FRI SEP 18 2020 SYSTEM NAME DATE/TIME LOCATION ----------- --------- -------- TROPICAL STORM ALPHA [24L] 18/1800 UTC 40N 9W RAINFALL ESTIMATED BY SATELLITE VIA QMORPH... 24-HR RAINFALL MAXIMUM FROM 18-18 UTC- 50MM AT 43N 11W 6-HR RAINFALL MAXIMUM FROM 12-18 UTC- 10MM AT 43N 11W RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 12-18 UTC... LATITUDE............................LONGITUDE...................... ....... 12W- 11W 11W- 10W 10W- 9W 9W- 8W 8W- 7W 7W- 6W 42N-43N 10- 10 10- 10 10- 10 0- 10 0- 0 0- 0 41N-42N 10- 10 0- 10 0- 10 0- 10 0- 0 0- 0 40N-41N 0- 10 0- 0 0- 0 0- 0 0- 0 0- 0 39N-40N 0- 0 0- 0 0- 0 0- 0 0- 0 0- 0 38N-39N 0- 0 0- 0 0- 0 0- 0 0- 0 0- 0 37N-38N 0- 0 0- 0 0- 0 0- 0 0- 0 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...................... ....... 12W- 11W 11W- 10W 10W- 9W 9W- 8W 8W- 7W 7W- 6W 42N-43N 999-999 999-999 999-999 999-999 999-999 999-999 41N-42N 999-999 999-999 999-999 999-999 999-999 999-999 40N-41N 999-999 999-999 999-999 999-999 999-999 999-999 39N-40N 999-999 999-999 999-999 999-999 999-999 999-999 38N-39N 999-999 999-999 999-999 999-999 999-999 999-999 37N-38N 999-999 999-999 999-999 999-999 999-999 999-999 ................................................................... RAINFALL ESTIMATED FROM 12 UTC 18 SEP GFS MODEL RUN... 24-HR RAINFALL MAXIMUM FROM 18-18 UTC- 90MM AT 42N 7W 6-HR RAINFALL MAXIMUM FROM 12-18 UTC- 20MM AT 40N 8W RAINFALL DISTRIBUTION IN MM OVER THE LAST 6 HOURS FROM 12-18 UTC... LATITUDE............................LONGITUDE...................... ....... 12W- 11W 11W- 10W 10W- 9W 9W- 8W 8W- 7W 7W- 6W 42N-43N 0- 0 0- 0 0- 0 0- 0 0- 0 0- 0 41N-42N 0- 0 0- 0 0- 10 0- 10 0- 0 0- 0 40N-41N 0- 0 0- 0 0- 10 0- 10 0- 20 0- 10 39N-40N 0- 0 0- 0 0- 10 10- 10 0- 10 0- 10 38N-39N 0- 0 0- 0 0- 0 0- 10 0- 10 0- 10 37N-38N 0- 0 0- 0 0- 0 0- 0 0- 0 0- 0 ................................................................... 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 $$ NNNN