ZCZC NFDSPENES ALL
SPENES
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/05/07 0520Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 0502Z HYRDOESTIMATOR THRU 0445Z
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LOCATION...COASTAL TEXAS...
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ATTN WFOS...HGX...CRP...EWX...
ATTN RFCS...WGRFC...
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EVENT...SLOW MOVING CONVECTION
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SATELLITE ANALYSIS AND TRENDS...LINE OF CONVECTION ALONG N-S LOW TO
MIDLEVEL BOUNDARY ACROSS WHARTON TO CALHOUN AND ADJACENT SOUTHERN GOM
WATERS CONTINUES TO ACT AS A FOCUS FOR CONVECTIVE DEVELOPMENT WITHIN A
VERY SATURATED ENVIRONMENT.  THE VERY COLD TOPPED CONVECTION IS LEADING
TO GOOD ESTIMATES (PARTICULARLY IN LOCATION) FOR AUTOMATED SATELLITE
PRECIP TOTALS.  HOWEVER...DUE TO THE VERY HIGH PWS IN EXCESS OF 2.3" PER
GPS NETWORK...THINK TOTALS ARE UNDER DONE HAS ESTIMATOR IS NOTORIOUS FOR
UNDERDOING ACTUAL PW VALUES.  IN THIS CASE AN ADDITIONAL 1" MOST LIKELY
CAN BE ADDED TO THE MAX VALUES ON THE GRAPHIC AT THE WEB ADDRESS BELOW.
3HR TOTALS OF 2.8" OVER SE CALHOUN COUNTY MOST LIKELY ARE AROUND 3.5-4".

RECENT IR IMAGES SHOW A WARMING WITH A TRANSITION OF COLDEST TOPS
TO A DEVELOPING CLUSTER SW OF THE MAIN LINE.  THIS SHOWS AN EASTWARD
MOVEMENT OF THE LINE BUT THE SHIELD OF PRECIP CONTINUES TO MOVE NNE
NEARING THE CENTER OF THE MIDLEVEL CIRCULATION OVER W WASHINGTON COUNTY.
IF PROGRESS NNE CONTINUES THIS WILL SLOW DOWN AND CONVERGE CELL MOTION
VECTORS OVER A SW TO NE AXIS OVER THE N HGX CWA...WHICH WOULD LEAD TO
A TRAINING PROFILE AS THE STORMS TRY TO MOVE NW THEN W AROUND THE AXIS.
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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 2991 9659 2989 9564 2731 9617 2740 9726
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