ZCZC NFDSPENES ALL
SPENES
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 04/30/07 1504Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12: 1445Z	DS
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LOCATION...S TEXAS...
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ATTN WFOS...EWX...
ATTN RFCS...WGRFC...
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EVENT...T-STORMS WITH HVY RAINFALL
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SATELLITE ANALYSIS AND TRENDS...TAIL END OF T-STORM LINE CONTINUES
TO PRODUCE HVY RAINFALL AS IT MOVES ACROSS THE S/CENTRAL COUNTIES OF
TX. CLOUD TOPS ON MCS HAVE SHRUNKEN SINCE EARLIER THOUGH IT HAS NOT
WARMED VERY MUCH IN THAT SAME TIME PERIOD DUE TO THE PERSISTENT CELLS IN
THE TAIL. COLDEST CLOUD TOP TEMPS ARE CURRENTLY -69C. THOUGH NOT THE BEST
AREA FOR NEW DEVELOPMENT..POSSIBLE THAT ADDITIONAL CELLS COULD DEVELOP TO
THE SW OF CURRENT STORMS INVOF MAVERICK/ZAVALA/DIMMIT/WEBB COUNTIES AND
JUST ACROSS THE MX BORDER FROM THESE COUNTIES IN THE NEXT FEW HRS. VIS
IMAGERY SHOWS NEW CU RISING THROUGH THE STRATUS DECK IN A FEW SPOTS
IN ZAVALA/MAVERICK COUNTIES AND THIS ALSO SHOWS UP ON RADAR. LOW LVL
MOISTURE CONV HAS INCREASED IN THIS AREA THE PAST 1-2 HRS SO IT WILL
HAVE TO BE WATCHED. PW VALUES FROM 12Z OBS SHOW 1.4" PW AT DRT SO THERE
IS STILL GOOD MOISTURE HUNG BACK WITH THE CELLS THOUGH IT IS MOVING EWD
WITH UPPER LOW MOVEMENT. ESTIMATE THAT RAINFALL RATES FROM TAIL END OF
T-STORM LINE ARE BETWEEN 1.25-2"/HR THOUGH LINE SEEMS TO BE MOVING ALONG
A GOOD PACE. HEAVIEST RAINS ARE NOW MAKING THEIR WAY INTO BEXAR COUNTY
AND WILL IMPACT COMAL/ATASCOSA/NRN FRIO IN THE NEXT HOUR OR SO. WILL
CONTINUE TO MONITOR.
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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 3029 9904 2977 9825 2876 9899 2912 10013
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