ZCZC NFDSPENES ALL
SPENES
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 08/23/07 0713Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12: 0702 DS
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LOCATION...NW IOWA...N NEBRASKA...S SOUTH DAKOTA...
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ATTN WFOS...DMX...FSD...OAX...ABR...LBF...UNR...
ATTN RFCS...NCRFC...MBRFC...
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EVENT...HVY RAINS FROM POSSIBLE TRAINING CELLS/MERGING CLUSTERS
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SATELLITE ANALYSIS AND TRENDS...WV IMAGERY SHOWS S/WV MOVING THROUGH
WRN NE WITH A MULTITUDE OF TSTORM ACTIVITY BEING SUPPORTED BY ITS
FORCING. STLT WINDS INDICATE A JET TO THE N EXTENDING FROM ND TO JUST N
OF LK SUPERIOR AND INTO CANADA BUT ALSO AN 80KT EXTENSION OF THE INFLOW
TO THE JET THAT EXISTS IN ERN SD POSITIONED SW-NE. STLT WINDS ALSO SHOW
THAT THE PART OF THE JET THAT EXTENDS INTO SD IS PROVIDING MOD UPPER LVL
DIFFLUENCE OVER N CENTRAL/NE NEBRASKA AT THIS TIME. STLT TRENDS OVER
THE PAST 1-2 HRS INDICATE THAT CELLS ARE COMING TOGETHER IN N CENTRAL
NE AND WITH PROPAGATION VECTORS INDICATING A NEARLY DUE W-E TRACK FOR
CELLS ACROSS THIS PART OF THE STATE..TRAINING OF CELLS IS LIKELY TO
OCCUR FROM NE OF KVTN TO KSUX OVER THE NEXT FEW HRS. MERGERS BETWEEN THE
NNEWD MOVING LINE IN ERN NE AND THE CELL CLUSTERS TO THE W WILL RESULT
IN A CONTINUOUS LINE OF STORMS.  RAINRATES OF 1.5-2"/HALF HR ARE LIKELY
OVER AREAS WHERE MERGERS OCCUR WITH ESTIMATED AMOUNTS OF 1-2" EXPECTED
ACROSS THE N CENTRAL PART OF NE AND S CENTRAL/SE SD. PROFILERS SHOW
STRONG LLJ OF 40-50KTS COMING OUT OF WRN OK THROUGH CENTRAL KS BEFORE
TURNING SSERLY AT THE KS/NE BORDER S OF KLNK. THIS IS PROVIDING GOOD
MOISTURE TRANSPORT AHEAD OF THE S/WV INTO N CENTRAL NE WHERE 1.6-1.8"
PW VALUES ARE SEEN PER GOES SOUNDER/GPS VALUES. EXPECT HEAVIEST RAINFALL
WILL OCCUR IN NERN NE/EXTREME SE SD AND LATER ON MOVING INTO NW IA AS
THE S/WV AND MOISTURE MOVES FARTHER E WITH ESTIMATED 2-3" POSSIBLE IN
THESE AREAS. SEE WEB ADDRESS IN ABOUT 10 MIN FOR GRAPHICAL ANALYSIS.
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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 4358 9965 4322 9511 4198 9552 4182 10173
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