ZCZC NFDSPENES ALL SPENES AZZ000-UTZ000-NVZ000-CAZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/16/08 1823Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678 LATEST DATA USED: GOES-11 1800Z CW . LOCATION...N ARIZONA...S UTAH...S NEVADA...S CALIFORNIA... . ATTN WFOS...GJT...FGZ...SLC...VEF...LKN...SGX...REV...HNX... ATTN RFCS...CBRFC...CNRFC... . EVENT...AFTERNOON MONSOONAL SHOWERS EXPECTED TO DEVELOP WITHIN NEXT 1-2 HRS . SATELLITE ANALYSIS AND TRENDS...LATEST VIS IMAGERY SHOWS THE REMNANTS OF AN MID-LVL CYCLONIC CIRCULATION SPINNING ACROSS S NV AND ALONG WITH DAYTIME HEATING..WILL LIKELY BE THE FOCAL POINT FOR THIS AFTERNOONS HVY RAINS. SOME CU ARE ALREADY BEGINNING TO BUILD ACROSS S NV/N AZ/SW UT AT THIS HR. GOES WV ANIMATION SHOWS ADDITIONAL MID-LVL MOISTURE SURGING NWD OUT OF NW MEXICO AND INTO S AZ/SW CA. THIS SAME SURGE OF HIGHER MOISTURE IS ALSO BEING SEEN AT LLVLS PER GOES SOUNDER PW VALUES (1.5-1.6" OVER NW MEXICO). THIS ADDITIONAL MID-LVL MOISTURE IS EXPECTED TO CONTINUE TO BE DRAWN NWD..BRINGING IT CLOSER TO THE MID-LVL CIRCULATION OVER S NV WHERE IT WILL ONLY COMPOUND THE THIS ANTICIPATED HVY RAINFALL THREAT THIS AFTERNOON. . AT THE SFC..OBJECTIVE ANALYSIS OF THETA-E SHOWS THE AXIS NOSING INTO PORTIONS OF SW NV/S UT. ADDITIONALLY..AREA OF BEST SFC MOISTURE CONVEGENCE IS ANALYZED AT 18Z TO BE ACROSS SW UT. CURRENT THINKING IS THAT GREATEST LIKELIHOOD WHERE HVY RAINS ARE EXPECTED TO BE THE MOST WIDESPREAD ARE ACROSS PORTIONS OF TULANE/INYO COUNTIES IN CA.. NYE/LINCOLN/CLARK COUNTIES IN S NV..MOHAVE/N COCONINO COUNTIES IN NW AZ..WASHINGTON/KANE/IRON/GARFIELD/BEAVER/PIUTE/WAYNE COUNTIES IN S UT. . PLEASE SEE WEB ADDRESS IN ABOUT 10 MINS FOR STLT GRAHPIC. . 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 3975 11028 3624 10919 3420 11615 3715 11906 . NNNN