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ZCZC NFDSPENES ALL SPENES PRZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 04/28/19 1850Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES 16 VISIBLE/IR 1830Z, LIGHTNING STRIKE DENSITY 1830Z; FCS . LOCATION...PUERTO RICO... . ATTN WFOS...SJU... ATTN RFCS... . EVENT...HEAVY RAINFALL OVER PUERTO RICO . SATELLITE ANALYSIS AND TRENDS...GOES SATELLITE IMAGERY SHOWS BLOSSOMING CONVECTION ACROSS THE NORTHERN HALF OF PUERTO RICO REACHING BACK TO THE INTERIOR AND SOUTHWEST CORNER OF PUERTO RICO. THE MORNING SOUNDING INDICATED OVER 1.5 INCHES PW WITH THE AVAILABLE ENERGY FOR CONVECTION POTENTIAL NEARLY 1400 J/KG. SAN JUAN METROPOLITAN AREAS AND INTERIOR MOUNTAINOUS REGIONS OF PUERTO RICO HAVE HAD THE MOST RAINFALL SO FAR, NEARING TWO INCHES IN SOME LOCATIONS. POTENTIAL HEAVY DOWNPOURS LEADING TO A FLASH FLOODING THREAT SHOULD BE CONSIDERED PROBABLE AT LEAST. DAYTIME HEATING IS A MAXIMUM AT THIS TIME AND DEW POINTS ARE NEAR 75 DEG F; THEREFORE, URBAN AND SMALL STREAM FLOODING MAY BE REALIZED WITH LOCALLY ENHANCED AREAS OF RAINFALL EXCEEDING TWO INCHES. CLOUD ELEMENTS INDICATE SOME CYCLONIC ROTATION WITHIN THE CLOUD MASS AIDING IN GENERATING LIFT AND APPEARING TO ENHANCE THE CONVECTION THAT IS ONGOING. . SHORT TERM OUTLOOK VALID 1850-2150Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...CONVECTIVE THUNDERSTORM CLOUD ELEMENTS ARE DEVELOPING AT THE MOMENT OVER THE ISLAND OF PUERTO RICO WEST OF SAN JUAN, THROUGH THE INTERIOR HIGH TERRAIN TO THE WEST ALONG THE NORTHERN HALF OF THE ISLAND OF PUERTO RICO WITH STORM DEVELOPMENT BUILDING BACK TO THE WEST TOWARDS THE SOUTHWEST CORNER OF THE ISLAND OF PUERTO RICO. AN APPROACHING UPPER LEVEL WAVE EXITING EASTERN CUBA WILL GENERATE LIFT AS IT MOVES FROM WEST TO EAST POTENTIALLY ENHANCING THE CONVECTION. THE FLASH FLOODING THREAT SHOULD LAST INTO THE EARLY EVENING UNTIL AROUND SUNSET. . ....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 1855 6719 1789 6745 1789 6576 1853 6548 1854 6720 . NNNN |
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