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ZCZC NFDSPENES ALL SPENES HIZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 02/23/18 1045Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: SSMIS/AMSU 1030Z; RADAR; GOES 15 WV;FCS . LOCATION...HAWAII... . ATTN WFOS...HFO... ATTN RFCS...AKRFC... . EVENT...HEAVY RAIN . SATELLITE ANALYSIS AND TRENDS...THE LATEST SATELLITE IMAGERY SHOWS A BROAD SCALE WAVE IN THE ATMOSPHERE NOW MAINLY SOUTHWEST OF THE HAWAIIAN ISLANDS. SSMIS/AMSU PRECIPITABLE WATER VALUES ARE ESTIMATED TO BE APPROACHING 3.00 INCHES WHICH IS AN ANOMALOUSLY HIGH VALUE CONSIDERING IT IS JUST AN ESTIMATE; NONETHELESS, LIFTING MECHANISMS INCLUDING DIVERGENCE ALOFT FROM DIFFLUENCE AND RIGHT ENTRANCE LIFT GENERATED WITH A JET STREAK NORTHWEST OF THE HAWAIIAN ISLANDS IS GOING TO LIFT THIS MOISTURE AND PRODUCE MODERATE TO HEAVY RAIN CAPABLE OF CREATING FLASH FLOODING DURING THE OUTLOOK PERIOD ACROSS THE HAWAIIAN ISALNDS. . 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 1045-1745Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...AN AREA OF RAIN WITH EMBEDDED CONVECTION IS TO THE SOUTH AND WEST OF THE HAWAIIAN ISLAND CHAIN. THE SYSTEM IS SLOW TO MOVE AS MOST OF THE HEAVIER RAIN APPEARS TO BE SOUTHWEST OF THE ISLAND, BUT IS PROGRESSING NORTHWARD AND SLOWLY EASTWARD. AS MODERATE AND EMBEDDED HEAVIER SHOWERS ENCOUNTER ELEVATED TERRAIN, FLASH FLOODING IS A CONCERN FOR SEVERAL HOURS FOR THE 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 2256 16013 2255 15389 1878 15462 1879 16099 2254 16016 . NNNN |
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