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ZCZC NFDSPENES ALL SPENES VIZ000-PRZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 09/29/18 1827Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES-16 1800Z, AMSU 1405Z;MC . LOCATION...PUERTO RICO... . ATTN WFOS...SJU... ATTN RFCS...SERFC . EVENT...CORRECTED FOR DATA...HEAVY RAIN ASSOCIATED WITH TROPICAL WAVE . SATELLITE ANALYSIS AND TRENDS...A TROPICAL WAVE SOUTHEAST OF PUERTO RICO IS PRODUCING AREAS OF CONVECTION TO THE SOUTH OF THE ISLAND, AS SEEN VIA GOES-16 WV AND IR IMAGERY. SOME DEEPER CONVECTION, WITH MODERATELY COLD CLOUD TOPS, IS NEAR THE SOUTHERN PORTION OF PUERTO RICO, WHILE TERRAIN-ENHANCED CONVECTION IS TAKING PLACE OVER LAND ACROSS THE ISLAND AS A WHOLE. A 1405Z AMSU PASS INDICATED PW OF 2.25 INCHES OVER THE ISLAND, WITH HIGHER VALUES FURTHER TO THE SOUTH. THE SAME PASS ALSO INDICATED THAT THE HEAVIEST RAIN WAS REMAINING WELL SOUTH OF THE REGION, ALTHOUGH THAT PASS WAS SEVERAL HOURS AGO. THE 12Z TJSJ SOUNDING INDICATED MODERATE INSTABILITY, AND DIURNAL HEATING HAS LIKELY INCREASED THIS. . SHORT TERM OUTLOOK VALID 1830-0030Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...HEAVY RAIN SHOULD CONTINUE TO IMPACT THE REGION THROUGH AT LEAST SUNSET, IF NOT LONGER, AS THE TROPICAL WAVE CONTINUES TO MOVE WESTWARD. SURFACE WINDS FROM THE EAST AND UPPER WINDS FROM THE WEST WILL SERVE TO SLOW THE DEEPEST CONVECTION, ALLOWING FOR HIGHER RAIN TOTALS. IN ADDITION, MANY AREAS ARE LIKELY TO SEE REPEATED RAIN THROUGHOUT THE REST OF THE DAY, WHICH WILL PROGRESSIVELY INCREASE THE POSSIBILITY OF FLOODING. . ....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 1890 6769 1890 6765 1888 6406 1742 6397 1747 6774 . NNNN |
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