ZCZC NFDSPENES ALL SPENES MIZ000-WIZ000-ILZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 02/07/13 2108Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES-13: 2045Z VOGT BLENDED TPW THROUGH 1950Z . LOCATION...MICHIGAN...WISCONSIN...N ILLINOIS... . ATTN WFOS...DTX...APX...IWX...GRR...GRB...LOT...MKX...DVN...ARX... ATTN RFCS...NCRFC... . EVENT... MOD TO HVY SNOW . SATELLITE ANALYSIS AND TRENDS... LATEST WV IMAGERY SHOWS UL TROF GRADUALLY SHIFTING EWD WITH NICE SWATH OF COLD CLOUD TOPS OVER WI/NRN IL/MI. THE COLDEST TOPS HAVE BEEN PERSISTING ACROSS SRN WI/NRN IL AND ARE SLOWLY MOVING EWD INTO MI. RECENT SFC OBS OF MOD/HVY SNOW HAVE BEEN COLLOCATED WITH THE COLDER CLOUD TOPS. SATELLITE DERIVED WIND PRODUCTS INDICATE A BULLS EYE OF UL DIVERGENCE IN NRN IL/SRN WI... WHICH IS JUST AHEAD OF BOTH THE NRN UL JET MAX AND SRN UL JET MAX MERGING TOGETHER OVER IA. THE LATEST RGB GOES13 AIRMASS SOUNDER PRODUCT INDICATES STRENGTHENING UL ENERGY IN IA SPREADING INTO WI/IL. . SHORT TERM OUTLOOK VALID 2110-0210Z... MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK... EXPECT MOD TO HVY SNOW TO GRADUALLY SPREAD ACROSS THE DISCUSSION AREA OVER THE NEXT 3-6 HOURS AS THE UL TROF SLIDES EWD. SNOW RATES AROUND 1"/HR ARE POSSIBLE... BUT IF THE AREAS WITH HEAVIER PRECIP, SUCH AS OVER NRN IL, CHANGE OVER TO SNOW A BIT FASTER, CANNOT RULE OUT 2"/HR SNOW RATES ESPECIALLY DUE TO THE UL ENERGY AND 0.7" TPW VALUES. WILL CONTINUE TO MONITOR. . ....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.ssd.noaa.gov/PS/PCPN/ . FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB: http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php . LAT...LON 4561 8043 4283 7967 4165 8931 4389 9042 . NNNN