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ZCZC NFDSPENES ALL SPENES PRZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/31/19 1859Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES 16 VIS/IR/WV 1840Z; SSMIS/AMSU PW 1447Z; FCS . LOCATION...PUERTO RICO... . ATTN WFOS...SJU... ATTN RFCS... . EVENT...INTERIOR CONVECTION OVER WESTERN PUERTO RICO WITH HEAVY RAINFALL . SATELLITE ANALYSIS AND TRENDS...SATELLITE IMAGERY SHOWS AN AREA OF CYCLONIC UPPER ROTATION NORTH OF PUERTO RICO WITH A LOBE OF HIGHER MOISTURE MOVING SOUTH TOWARDS THE ISLAND IS ENHANCING CONVECTIVE DEVELOPMENT ON THE CENTRAL AND WESTERN PORTION OF THE ISLAND OF PUERTO RICO OVER THE MOUNTAINS. AN UPPER LEVEL TROUGH ASSOCIATED WITH THE ROTATION WILL SLOWLY DRIFT OVER PUERTO RICO AS WATER VAPOR TRANSPORT FROM THE SOUTH MOVES NORTHWARD AND MEETS THE UPPER LEVEL TROUGH MOVING OVER PUERTO RICO. PW QUANTITIES ARE IN A RANGE BETWEEN 1.9 AND 2.0 INCHES AND THE AIR MASS IS MOIST, HUMID, AND RELATIVELY UNSTABLE. UPWARD LIFT EAST OF THE UPPER LEVEL TROUGH AND AN EMBEDDED SHORT WAVE MOVING THROUGH THE FLOW FROM THE SOUTHWEST IS ENHANCING LIFTING MECHANISMS AND WILL FURTHER AID IN DEVELOPING THE CONVECTION. HEAVY RAINFALL WOULD BE THE END RESULT. . SHORT TERM OUTLOOK VALID 1900-0000Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...RECENT TRENDS IN RADAR SHOW ACTIVITY OVER THE WESTERN HALF OF PUERTO RICO FORMING OVER THE HIGHER ELEVATIONS, AND IS FOR NOW, FAIRLY ISOLATED. PERSISTENT RAINFALL THAT IS RELATIVELY STATIONARY MAY LEAD TO REGIONAL FLASH FLOODING WHERE THE CONVECTION CONTINUES TO DEVELOP AT THIS MOMENT. HIGHER ELEVATED AREAS ARE MOST SUSCEPTIBLE AND STREAMS IN CANYONS BELOW MAY SEE THE EFFECTS AS RAIN FLOWS DOWN THESE RAVINES AND CULVERTS. THE RESULT WILL BE FLASH FLOODING IF THESE STORMS DO PERSIST. . ....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 1853 6723 1853 6723 1852 6552 1788 6565 1789 6740 . NNNN |
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