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ZCZC NFDSPENES ALL SPENES HIZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 03/30/20 0115Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES WEST 0100Z; SSMIS/AMSU 00Z; HILO RAOB 00Z; FCS . LOCATION...HAWAII... . ATTN WFOS...HFO... ATTN RFCS...AKRFC... . EVENT...ISLAND OF HAWAII HEAVY RAINFALL . SATELLITE ANALYSIS AND TRENDS...LATEST GOES WEST VISIBLE SATELLITE IMAGERY SHOWS BLOSSOMING CONVECTIVE THUNDERSTORM CELLS ON THE EASTERN SIDE OF THE BIG ISLAND OF HAWAII AND AN UPPER LEVEL SHORT WAVE APPROACHING AS UPPER LEVEL WINDS EVACUATE AIR MASS ALOFT ALLOWING STORM CELLS TO MAINTAIN THEIR UPDRAFTS. A FAIRLY DEEP MOISTURE PROFILE AT HILO AT 00Z INCLUDED A PW OF 1.57 INCHES, 1067 J/KG CONVECTIVE POTENTIAL ENERGY, A GOOD NEGATIVE INDEX OF -5C SHOWING AMPLE BUOYANCY, BUT MORE IMPORTANTLY, THE UPPER LEVEL WIND VELOCITIES WERE OVER 125KTS FROM THE WNW BUT LOWER LEVEL WINDS COMPARATIVELY, DIRECTLY OPPOSED WINDS ALOFT FROM AN ESE DIRECTION; CONSEQUENTLY, A PROLONGED THUNDERSTORM OVER THE BIG ISLAND OF HAWAII IN THE EASTERN FACING TERRAIN MAY CAUSE FLASH FLOODING. IMPRESSIVE BILLOWING STORM TOPS WITH HIGH CIRRUS CLOUDS STREAMING IN FROM THE WEST AND LOW LEVEL CLOUDS PUSHING MOISTURE TOWARDS THE EAST FACING SLOPES OF HAWAII ISLAND LOOKS TO PERSIST WITH AMPLE ENERGY, MOISTURE, LIFT AND BUOYANCY TO AID IN CONVECTIVE DEVELOPMENT. EXCESSIVE RAINFALL MAY RESULT. . AN ANNOTATED SATELLITE GRAPHIC SHOWING THE HEAVY PRECIPITATION THREAT AREA SHOULD BE AVAILABLE ON THE INTERNET ADDRESS LISTED BELOW IN APPROXIMATELY 10-15 MINUTES. . SHORT TERM OUTLOOK VALID 0115-0615Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...RECENT HILO RADAR SHOWS HIGH REFLECTIVITY INDICATING HEAVY RAINFALL IS OCCURRING OVER THE BIG ISLAND OF HAWAII THAT HAS A POTENTIAL FOR FLASH FLOODING. . ....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 2240 16106 2240 16104 1855 15583 1858 15294 2236 15804 . NNNN |
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