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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/21/07 0639Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: G12  0630Z  CK
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LOCATION...S CENTRAL TEXAS...
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ATTN WFOS...CRP...EWX...
ATTN RFCS...WGRFC...
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EVENT...RAPIDLY INTENSIFYING TSTMS
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SATELLITE ANALYSIS AND TRENDS...CONVECTIVE CLOUD TOPS HAVE BEEN COOLING
RAPIDLY OVER THE PAST HALF HR TO HR OVER S CENTRAL TX. THE COLDEST TOPS
ARE OVER MEDINA COUNTY AND ALONG THE NW MEDINA/S BANDERA BORDER. THE
RAPID COOLING OF THESE CLOUD TOPS IN A HALF HR..AND HIGH PW'S OVER THE
AREA..INDICATE HVY RAIN BURSTS OF 1" OR MORE IN A HALF HR ACCORDING TO
STLT CONVECTIVE ESTIMATION TECHNIQUE. OTHER WARMER TOP CELLS HAVE FORMED
TO THE E..E OF SAT..INVOF GUADALUPE/GONZALES/LAVACA COUNTIES.
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0632Z IMAGE JUST IN SHOWS ADDITIONAL TSTMS HAVE DEVELOPED OVER MEDINA
COUNTY..AND WOULD EXPECT MERGERS TO TAKE PLACE SHORTLY. DUE TO THE INCR IN
NUMBER AND INTENSITY OF CELLS OVER MEDINA COUNTY..AND THE HIGH POTENTIAL
FOR MERGERS..ADDITIONAL RAINFALL AMOUNTS OF 2-3" ARE LIKELY. ALSO OF
CONCERN IS THE DEVELOPMENT OF TSTMS OVER ATASCOSA COUNTY.
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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 3013 9727 2864 9727 2870 10010 3001 9980
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