ZCZC NFDSPENES ALL SPENES MOZ000-ARZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 03/04/08 1025Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678 LATEST DATA USED: GOES-12 1015Z GG . LOCATION...S MISSOURI...NW ARKANSAS... . ATTN WFOS...PAH...MEG...LZK...SGF...SHV...TSA... ATTN RFCS...LMRFC...NCRFC...MBRFC...ABRFC... . EVENT...HVY SNOW . SATELLITE ANALYSIS AND TRENDS...WV LOOP OVER THE LAST FEW HOURS SHOWS THE MAIN UPPER LOW OVER NE TX HAS BEGUN TO ELONGATE TOWARD THE NE AS A SUBTLE SHORTWAVE CURRENTLY NEAR KLIT IS ROTATING NORTHWARD INTO THE MAIN AXIS OF A SHARPENING DEFORMATION ZONE. THIS FEATURE IS QUITE APPARENT WHEN CONNECTED TO A SHARP GRADIENT ON THE WV THAT EXTENDS SOUTH ACROSS N AND W LA TO KHOU. THIS SHORTWAVE TROF HAS LEAD TO AN ENHANCEMENT OF UVV N AND NW OF IT ALONG THE DEFORMATION ZONE WHERE IR TOPS ARE COOLING QUITE WELL WITH A CONVECTIVE APPEARANCE FROM SCOTT COUNTY TO FULTON COUNTY AR. RUC2 ANALYSIS SHOWS THIS AS A VERY STRONG -2 TO -4 AXIS OF EPV FROM 650-500MB. GOES SOUNDER PWS ARE AROUND .5" IN THE AREA AND CAN BE CONFIRMED BY THE GPS NETWORK... ADDITIONALLY TEMPERATURE PROFILES AND IR TEMPS SHOW WHERE MAX ISENTROPIC LIFT/DEVELOPMENT IS ALSO OCCURRING NEAR THE -12C LEVEL FOR MAXIMUM SNOW GROWTH. THIS SHOULD LEAD TO VERY HIGH SNOW FALL RATES (1.5-2.5"/HR) ALONG THIS AXIS AND EVENTUALLY EXPAND NORTHWARD INTO SC MO... THIS SNOW BAND COULD ACCUMULATE VERY HIGH TOTALS WITH THESE RATES OVER THE COMING HOURS AS THE AXIS WILL ALSO BE VERY SLOW TO MOVE/SHIFT BECAUSE OF THE SLOW PROGRESSION NE OF THE UPPER LOW ESPECIALLY SINCE IT HAS BEEN ELONGATED. A SECONDARY AXIS/DEFORMATION ZONE A BIT HIGHER IN ELEVATION CAN BE SEEN NW INTO SE MO... EXTENDING FROM BARRY TO MILLER COUNTY. THIS BAND HAS A BIT LESS TO WORK WITH AS GOES SOUNDER PWS ARE IN THE RANGE OF .2-.3. SO STILL CAPABLE OF 1-1.5"/HR RATES. STILL THE TOPS HAVE BEGUN TO WARM ACROSS THE SW PORTION OF THE LINE MOST LIKELY IN RESPONSE TO THE MAIN DEFORMATION ZONE BECOMING MORE ACTIVE. PLEASE SEE GRAPHIC AT WEB ADDRESS BELOW... . 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 3831 9237 3679 9082 3434 9420 3699 9427 . NNNN