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ZCZC NFDSPENES ALL SPENES HIZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 09/26/19 1039Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES 17 WV_6.9; SSMIS/AMSU; FCS . LOCATION...HAWAII... . ATTN WFOS...HFO... ATTN RFCS...AKRFC... . EVENT...HEAVY RAINFALL WESTERN HAWAIIAN ISLANDS . SATELLITE ANALYSIS AND TRENDS...GOES 17 SATELLITE IMAGERY SHOWS AN APPROACHING UPPER LEVEL TROUGH WEST OF THE HAWAIIAN ISLANDS, WITH SOUTHWEST WINDS ALOFT AND A MID LEVEL SHORT WAVE OVER THE MOVING ACROSS WESTERN HAWAIIAN ISLANDS, SPECIFICALLY KAUAI. SATELLITE PRECIPITABLE WATER ESTIMATES PER SSMIS/AMSU SENSORS INDICATE 2.2" QUANTITIES WITHIN THE TROPICAL MOISTURE PLUME INCLUDES MOLOKAI, OAHU, KAUAI, NIIHAU FIELDS OF SURFACE MOISTURE CONVERGENCE ARE MORE PRONOUNCED OVER THE WESTERN ISLANDS IN THE HAWAIIAN ISLAND CHAIN. SATELLITE IMAGERY SHOWS DEVELOPMENT OVER KAUAI WITH SUBTLE CYCLONIC ROTATION ENHANCING UPWARD VERTICAL VELOCITY FIELDS WHICH MAY LEAD TO HEAVY RAINFALL OVER THE WESTERN HAWAIIAN ISLANDS RESULTING IN FLASH FLOODING. . SHORT TERM OUTLOOK VALID 1040-1640Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...CONVECTION IS DEVELOPING OVER THE SOUTHERN COASTLINE OF KAUAI WITHIN A DEEP TROPICAL MOISTURE PLUME FROM THE SOUTHWEST FEEDING WATER VAPOR INTO THE SYSTEM. RECENT OBSERVATIONS WITHIN THE LAST COUPLE OF HOURS OVER LIHUE HAVE HEAVY RAINFALL IN THE REPORTS. EXPECT MODERATE TO HEAVY RAINFALL WITH THE POTENTIAL FOR FLASH FLOODING OVER THE WESTERN HAWAIIAN ISLANDS. . ....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP).... ....NESDIS IS A MEMBER OF 12 PLANET.... . FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL SSDPrecip@noaa.gov . FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB: http://www.ospo.noaa.gov/Products/atmosphere/spe/ . FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB: http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php . LAT...LON 2235 16012 2234 16011 2233 15382 1888 15481 1895 16151 . NNNN |
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