ZCZC NFDSPENES ALL
SPENES
MIZ000-WIZ000-MNZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 04/11/08 1608Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12: 1545Z		DS
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LOCATION...MICHIGAN...WISCONSIN...N MINNESOTA...
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ATTN WFOS...MQT...GRB...DLH...MPX...
ATTN RFCS...NCRFC...
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EVENT...CONTINUED MOD TO HVY SNOW
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SATELLITE ANALYSIS AND TRENDS...MID/UPPER LVL CIRCULATION IS NOW SEEN
OVER NRN IA PER LATEST WV IMAGERY NEAR 42N/94W. DRY SLOT CAN BE SEEN
PROTRUDING NWD FROM TX INTO THE WRN OH VLY WITH STLT WINDS SHOWING
A 100 KT JETMAX OVER IN/SW MI. LAST FEW WV IMAGES SHOWED THE UPPER
CENTER MOVING SLIGHTLY TO THE N/NNE IN RESPONSE TO AN IMPULSE THAT
CROSSED SRN IA AND IS NOW AMPLIFYING A BAND OF CELLS OVER SRN WI THAT
WILL WRAP NWWD AROUND THE LOW TWDS THE COLD AIR. 12Z UPPER AIR ANALYSIS
INDICATED A TROWAL EXTENDING NWD FROM THE UPPER LOW TO CENTRAL/N CENTRAL
MN AND THEN NEWD INTO SW ONTARIO. SINCE THEN WITH PREVIOUSLY MENTIONED
MOVEMENT OF UPPER LOW..TROWAL APPEARS TO HAVE MOVED SLIGHTLY EWD IN WV/IR
IMAGERY. CURRENTLY HEAVIEST SNOWS PER RECENT OBS APPEAR TO BE OCCURRING
AROUND THE WRN END OF LK SUPERIOR..INCLUDING NE MN/WRN U.P. OF MI/AND NW
WI. VERY SHARP GRADIENT EXISTS BETWEEN WARM AIR LAYER AT 850MB PER 12Z
RAOBS AT KFCM/KGRB AND MUCH COLDER AIR PRESENT IN N MN. THUS EXPECT SNOW
THAT IS FALLING SHOULD BE FAIRLY WET AND MOISTURE LADEN AS PW VALUES OF
0.4-0.6" EXIST ACROSS WI/MN PER 12Z PW ANALYSIS AND GOES SOUNDER. VIS
IMAGERY SHOWS SMOOTH CLOUD TOPS NW OF A KANE TO KASX LINE INDICATING
APPORX WHERE THE CHANGEOVER TO SNOW IS TAKING PLACE WITH THE HEAVIEST
SNOW ALONG AND JUST W/NW OF THE LINE. WITH ADDTL BANDS WRAPPING AROUND
THE UPPER LOW..MOD TO HVY SNOW CAN BE EXPECTED TO LAST WELL THROUGH THE
AFTN WITH MOST OF THE AREAS CURRENTLY RECEIVING SNOW STAYING ALL SNOW
DUE TO THE CLOUD COVER. SEE WEB ADDRESS FOR GRAPHIC IN ABOUT 10 MIN.
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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 4960 8933 4742 8563 4564 9071 4630 9429
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