ZCZC NFDSPENES ALL
SPENES
WIZ000-ILZ000-IAZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 02/06/08 1515Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 THRU 1445Z GG
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LOCATION...S WISCONSIN...N ILLINOIS...E IOWA...
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ATTN WFOS...GRB...LOT...ILX...MKX...DVN...ARX...DMX...
ATTN RFCS...NCRFC...
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EVENT...SIGNIFICANT SNOW BAND
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SATELLITE ANALYSIS AND TRENDS...LOOP OF WV SHOWED A VERY VIGOROUS
SHORTWAVE THAT WRAPPED THROUGH THE BASE OF THE MAIN TROF AND AS IT
RAPIDLY ACCELERATED NORTHWARD BEGAN TO SHED ENERGY INTO THE COMMA HEAD
ACROSS KS BUT ALSO WAS THE LEADING EDGE OF A DRY UPPER LEVEL JET THAT
HAS CLEARED OUT MUCH OF THE UPPER LEVEL CIRRUS ACROSS N IL GIVING A
VERY NICE SATELLITE PRESENTATION AS IT UNZIPPED ALONG THE DEVELOPING
DEFORMATION ZONE FROM S IA TO KGRB.  IT APPEARS THE MAIN BULK OF THE
ENERGY WENT TOWARD THE SW EDGE OF THE DEFORMATION ZONE AS IT BALLS
UP A BIT MORE...THIS HAS LEAD TO A SLOWING OF THE MIDLEVEL LOW TRACK
ACROSS S IA INTO N IL IN THE LAST FEW HOURS.  IN FACT THE MAIN 700MB
LOW ALONG HAS REMAINED NEARLY STATIONARY ACROSS OR NEAR THE QUAD CITIES.
VERY IMPRESSIVE DUAL JET STRUCTURE (PER SATELLITE WINDS) WITH N IL BEING
IN THE BEST UVV DUE TO LEFT EXIT OF A 180KT AND RIGHT ENTRANCE TO A
140KT JET.

MOISTURE WISE, STRONG SOUTHERLY FLOW HAS ADVECTED HIHG PWS RANGING AROUND
.5" PER GPS NETWORK AND GOES SOUNDER ACROSS C IL IS BEING PULLED INTO THE
DEFORMATION ZONE WHERE CLOUD TEMPS ARE AROUND -10 TO -20C AND MAXIMIZED
DENDRITIC GROWTH IS OCCURRING.  WITH HIGH PWS AND TEMPS MAXIMIZED FOR
SNOW GROWTH WOULD LEAD TO SNOW RATES OF 2" TO 3"/HR A LINE THAT CAN BE
SEEN AS THE DIFFERENCE IN CLOUD HEIGHT FROM KMPZ TO KMLI TO KJVL.

SATELLITE TRENDS OF THE DEFORMATION ZONE SHOW THE SW EDGE WASHING OUT
ACROSS NW AND NC MO...WITH THE MATURE PORTION ACROSS THE FAR E PORTION
OF IA AT THIS TIME.  VIS AND ENHANCED IR IMAGERY SHOWS A NEW LINE
OF ENHANCEMENT ACROSS NORTHERN IL FROM THE MAIN LOW WITH SIGNIFICANT
GROWTH/COOLING TOPS THAT HAVE MORE OF A CONVECTIVE APPEARANCE JUST SW OF
KRFD... THIS ENHANCEMENT IS LIFTING NORTH AND WILL MERGE WITH THE MAIN
DEFORMATION LINE FROM KJVL TO KMWC OVER THE NEXT FEW HOURS INCREASING
RATES FROM 1-2"/HR TO 2-3"/HR.

SEE WEB ADDRESS BELOW FOR GRAPHIC...
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SEE NCEP HPC DISCUSSION AND QPF/S FOR FORECAST.
....NESDIS IS A MEMBER OF 12 PLANET....
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SSD/SAB WEB ADDRESS FOR PRECIP ESTIMATES:
HTTP://WWW.SSD.NOAA.GOV/PS/PCPN/
...ALL LOWER CASE EXCEPT /PS/PCPN/
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LAT...LON 4398 8783 4256 8719 4077 9096 4142 9246
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