ZCZC NFDSPENES ALL
SPENES
IAZ000-NEZ000-SDZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/21/08 0605Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 0545Z        CW
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LOCATION...IOWA...NE NEBRASKA...
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ATTN WFOS...DVN...ARX...DMX...FSD...OAX...
ATTN RFCS...NCRFC...MBRFC...
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EVENT...MCS TO MOVE SEWD ACROSS IA BRINGING WITH IT HVY RAINS OVER NEXT
SEVERAL HRS
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SATELLITE ANALYSIS AND TRENDS...WELL-DEFINED MCS TRACKING EWD ACROSS
NORTHEAST NE/EXT SE SD/NW IA ATTM..WITH HVY RAINS/TRAINING OF CELLS
OCCURRING INVOF OFK/NE EWD TO VIC SLB/IA.  3-HR STLT RAINFALL ESTIMATES
INDICATE GENERALLY 1.0-1.5" IS OCCURRING..HOWEVER IT IS LIKELY THAT OVER
AREAS WHERE CELLS ARE TRAINING THESE AMOUNTS COULD BE EXCEEDING 2.0"
IN 3-HR PERIOD.
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GROWING CONCERN ACROSS CENTRAL PORTIONS OF IA...AS CELLS HAVE
DEVELOPED OUT AHEAD OF MCS AND CONTINUED CLOUD TOP COOLING/EXPANSION
IS BEING OBSERVED..THIS INCLUDES COUNTIES OF BOONE/DALLAS/POLK/JASPER/
MARION/MAHASKA.  MCS IS EXPECTED TO BEGIN A MORE SEWD STORM TRACK AS
IT MOVES ACROSS IA..FOLLOWING ALONG THE SFC THETA-E GRADIENT..850 MB
FRONTAL BOUNDARY..AND NW MID-LVL WINDS (PER GOES STLT DERIVED WINDS).
ADDITIONAL OBJECTIVE ANALYSIS OF EXPERIMENTAL MESOSCALE STLT DERIVED WINDS
SUGGESTS RIGHT ENTRANCE REGION OF 75 KT UPPER-LVL JET STREAK IS LOCATED
ACROSS N IA AND COULD LIKELY PROVIDE SOME ENHANCEMENT OF DIVERGENCE
ALOFT..INCREASING VERTICAL MOTIONS..AND POTENTIALLY INCREASE RAIN RATES
WITHIN MCS AS IT MOVES ACROSS IA OVER THE SEVERAL HRS.  RAIN RATES MAY
BEGIN TO REACH UPWARDS OF 1.0"/30-45 MINS.
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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 4339 9623 4236 9083 4081 9220 4208 9723
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