ZCZC NFDSPENES ALL SPENES MIZ000-INZ000-WIZ000-ILZ000-IAZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 12/20/12 2115Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: GOES-13: 2045Z VOGT . LOCATION...MICHIGAN...INDIANA...WISCONSIN...ILLINOIS... LOCATION...IOWA... . ATTN WFOS...DTX...APX...IWX...GRR...MQT...GRB...LOT...ILX...MKX... ATTN WFOS...DVN...ARX... ATTN RFCS...OHRFC...NCRFC... . EVENT... "BRUTE OF A STORM" WITH HIGH WINDS AND MOD/HVY SNOWFALL CONTINUES OVER THE UPPER-MIDWEST . SATELLITE ANALYSIS AND TRENDS... MID/UL LOW CONTINUES TO TRACK ACROSS NRN IL WITH DEFORMATION ZONE CONTINUING TO STRENGTHEN ACROSS WI/NRN IL. OVER THE PAST FEW HOURS THE SURFACE PRESSURE HAS DROPPED AT 5 MB ACROSS MI ACCORDING TO SFC OBS. DUE TO THIS STRENGTHENING, PRECIP HAS BEGUN TO FILL IN NORTH OF THE SFC LOW, WHILE THE UL DRY SLOT CONTINUES TO FIGHT OFF SOME PRECIP IN ERN IN/OH... CURRENTLY THE COLDEST CLOUD TOPS/BEST IR ENHANCEMENT ARE LOCATED ACROSS EXT NE IA/WI/NRN IL WITH SNOWFALL RATES LIKELY AROUND 1-2"/HR. THERE HAS NOT BEEN ANY RECENT LIGHTNING IN THE REGION SO THE BANDING FEATURES THAT ARE APPARENT IN RADAR COULD BE SOME BRIGHT-BANDING... EVEN SO, EXPECT THE LOW AND SUBSEQUENT DEFORMATION ZONE TO CONTINUE TO STRENGTHEN OVER THE NEXT 3-6 HOURS WITH THE BEST SNOWFALL TO STAY MAINLY IN WI/IL. . SHORT TERM OUTLOOK VALID 2115-0115Z...MEDIUM CONFIDENCE FACTOR IN SHORT TERM OUTLOOK... AS THE UL LOW CONTINUES ITS TREK EWD, EXPECT MOD TO HEAVY SNOWFALL TO CONTINUE ACROSS SE WI/IL/UPPER MI FOR AT LEAST THE NEXT 3-6 HOURS. RATES WILL LIKELY REMAIN AROUND 1-2"/HR BUT IF THE LOW DEEPENS FURTHER, CANNOT RULE OUT SOME ADDITIONAL CONVECTIVE BANDS LEADING TO HIGHER SNOWFALL RATES. 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 4701 8875 4525 8302 4055 8714 4183 9203 . NNNN