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ZCZC NFDSPENES ALL SPENES PRZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 06/10/21 1507Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES-16 1440Z HANNA . LOCATION...PUERTO RICO... . ATTN WFOS...SJU... ATTN RFCS... . EVENT...LOCALIZED HEAVY RAIN THREAT AGAIN TODAY . SATELLITE ANALYSIS AND TRENDS...LATEST WV IMAGERY SHOWS THAT THE LARGE SCALE PATTERN REMAINS SOMEWHAT SIMILAR TODAY BUT MID LEVEL TROF/SHEAR AXIS OVER THE CENTRAL NORTH ATLANTIC HAS BEGUN TO ORIENT ITSELF MORE NE/SW AS THE E PORTION OF THE TROF WAS BEGINNING TO EJECT NE AHEAD OF HEIGHT FALLS OVER SE CANADA. FURTHER TO THE SW, NEAR THE TAIL END OF THE SHEAR AXIS, A MORE POTENT PIECE OF MID LEVEL DRYING/IMPULSE WAS DROPPING INTO THE SE BAHAMAS AND THIS MAY HELP TO SLIGHTLY BACK THE DEEP LAYER FLOW THROUGHOUT THE DAY. AS THIS IMPULSE CONTINUES INTO THE BASE OF THE TROF AXIS, WOULD ALSO EXPECT TO SEE SOME STRENGTHENING OF THE MID AND UPPER LEVEL JET STREAK N OF THE ISLANDS WHICH SHOULD SHOULD ALSO HELP TO ENHANCE THE LARGE SCALE ASCENT OVER THE REGION. MOISTURE REMAINS QUITE ANOMALOUS OVER THE REGION AND IN FACT BLENDED PW ANALYSIS SHOWS THAT THE DEEP LAYER MOISTURE AXIS HAS MOVED DIRECTLY OVER THE ISLAND IN RESPONSE TO HEIGHT RISES SEEN ON WV IMAGERY PUSHING W TOWARDS THE E CARIBBEAN ISLANDS. VERY ACTIVE CONVECTION WAS ALREADY ONGOING OVER PARTS OF NE PUERTO RICO WITH ESTIMATED RAINFALL RATES IN EXCESS OF 2.0"/HR IN THE MOST ACTIVE CORES. CU DEVELOPMENT WAS ALSO ONGOING OVER PORTIONS OF THE REST OF THE ISLAND AND WOULD EXPECT TO SEE A CONTINUED THREAT OF HEAVY RAINFALL THROUGHOUT THE DAY WITH CONTINUED DAYTIME HEATING AND STRENGTHENING SEA BREEZE/TERRAIN CIRCULATIONS POTENTIALLY INTERACTING WITH OUTFLOW BOUNDARIES FROM ONGOING CONVECTION. MORNING TJSJ SOUNDING WAS AGAIN SHOWING WEAK 0-6KM WINDS WITH SOME WEAK WAA IN THE LOW LEVELS. THUS WOULD EXPECT ANY CONVECTION TO BE RATHER SLOW MOVING WITH STORM MOTIONS SLOWLY TO THE WNW. . ....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 1880 6570 1862 6527 1838 6514 1803 6520 1776 6574 1757 6688 1779 6746 1807 6764 1835 6763 1858 6730 1872 6662 . NNNN |
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