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ZCZC NFDSPENES ALL SPENES PRZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 10/16/21 1549Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES-16 1520Z HANNA . LOCATION...PUERTO RICO... . ATTN WFOS...SJU... ATTN RFCS... . EVENT...LOCALIZED HEAVY RAIN THREAT TODAY . SATELLITE ANALYSIS AND TRENDS...THE LARGE SCALE PATTERN SINCE YESTERDAY HAS CHANGED SLIGHTLY IN THAT THE BEST LOW LEVEL CONFLUENT WIND AXIS HAS SHIFTED E AND NE OF THE AREA AS HEIGHT FALLS HAVE CONTINUED TO PUSH E INTO PORTIONS OF THE CNTRL ATLANTIC OCEAN. VIS IMAGERY WAS SUGGESTING A LOW LEVEL DEFORMATION AXIS WAS STILL HANGING BACK ROUGHLY OVER PUERTO RICO AND THE VI WITH A COLLOCATED ANOMALOUS MOISTURE AXIS ON LATEST BLENDED PW ANALYSIS. PW VALUES WITHIN THIS AXIS WERE GENERALLY RUNNING IN THE VIC OF 1.80-2.10" ON BLENDED PW ANALYSIS WHICH MIGHT BE A SLIGHT DECREASE FROM AT THIS TIME YESTERDAY. WV IMAGERY WAS NOT SHOWING ANY NOTABLE IMPULSES TO ENHANCE LARGE SCALE FORCING TODAY WITH MOSTLY ANTICYCLONIC FLOW OVER THE AREA AND WAS ALSO SUGGESTING THAT MID LEVEL HEIGHTS HAVE LIKELY RISEN SLIGHTLY OVER THE PAST 24 HOURS AS UPSTREAM UPPER LEVEL LOW HAS RETROGRADED SLIGHTLY INTO THE W CARIBBEAN. THE IMPLIED MID LEVEL HEIGHT RISES WERE ALSO CONFIRMED BY MORNING SOUNDINGS OUT OF TJSJ WHERE 20M AT 50H HEIGHT RISES WERE NOTED SINCE 12Z YESTERDAY WITH SOME MID LEVEL WARMING THAT HAVE HELPED TO DECREASE THE MID LEVEL LAPSE RATES SLIGHTLY. HAVE BEGUN TO SEE DEEPENING CU/TCU FIELDS WITHIN FAVORED OROGRAPHIC AND SEA BREEZE CIRCULATION AREAS AND WOULD EXPECT TO SEE A GRADUAL INCREASE IN CONVECTION OVER THE NEXT SEVERAL HOURS WITH LOCALIZED HEAVY RAIN THREAT BUT WITH SOME SUGGESTION THAT COVERAGE MAY NOT BE TO THE EXTENT OF YESTERDAY. . ....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 1875 6553 1861 6516 1819 6505 1787 6526 1779 6570 1772 6704 1791 6747 1825 6766 1846 6754 1862 6701 1874 6602 . NNNN |
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