ZCZC NFDSPENES ALL SPENES FLZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 03/22/08 1840Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678 LATEST DATA USED: GOES-12 1815Z CW SSMI: 1400Z . RESENT FOR CORRECTION IN STLT ESTIMATE AMOUNT. . LOCATION...S FLORIDA... . ATTN WFOS...MFL...KEY... ATTN RFCS...SERFC... . EVENT...HVY RAINFALL ASSOCIATED WITH CLUSTER OF TSTMS . SATELLITE ANALYSIS AND TRENDS...A CLUSTER OF TSTMS IS BEGINNING TO SPREAD INTO EXTREME S FLORIDA..INCLUDING THE COUNTIES OF MONROE..MIAMI DADE..AND THE FLORIDA KEYS. IR IMAGERY OVER THE PAST HOUR HAS SHOWN SIGNIFICANT CLOUD TOP COOLING AND EXPANSION..AS TOPS HAVE COOLED TO -61C AS OF 1815Z WITH THESE CONVECTIVE CELLS. MICROWAVE ANALYSIS OF PW FROM THE SSMI AT 14Z REVEALS A RICH MOISTURE PLUME OF TROPICAL ORIGIN STRETCHING OFF THE COAST OF THE YUCATAN PENINSULA SE OVER S FL..WITH PW VALUES BETWEEN 1.8-2.0" (GOES SOUNDER AGREES WITH PW VALUES NEAR 1.8" WITHIN THE SAME PLUME. HYDROESTIMATOR 3-HR RAINFALL AMOUNTS ENDING AT 18Z INDICATED A MAXIMUM OF 1.4" AT 25N/81W (JUST SW OF MONROE COUNTY). EXPECTING CLUSTER OS TSTMS TO CONTINUE PROGRESSING TO THE ENE ACROSS THE DISCUSSION AREA AND POTENTIALLY AFFECTING SOUTHERN PORTIONS OF BROWARD COUNTY. RAINFALL AMOUNTS FROM THESE CELLS ARE EXPECTED TO BE BETWEEN 0.75-1.5"..WITH THE POSSIBLY OF LOCALLY HIGHER AMOUNTS OVER THE NEXT COUPLE OF HRS. . PLEASE SEE BELOW WEB ADDRESS FOR ESTIMATE GRAPHIC IN 10 MINS. . SEE NCEP HPC DISCUSSION AND QPF/S FOR FORECAST. ....NESDIS IS A MEMBER OF 12 PLANET.... . SSD/SAB WEB ADDRESS FOR PRECIP ESTIMATES: HTTP://WWW.SSD.NOAA.GOV/PS/PCPN/ ...ALL LOWER CASE EXCEPT /PS/PCPN/ . LAT...LON 2598 7996 2489 7995 2433 8160 2531 8181 . NNNN