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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/22/08 0108Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12: 0045Z		DS
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LOCATION...TEXAS...
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ATTN WFOS...CRP...EWX...BRO...
ATTN RFCS...WGRFC...
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EVENT...SLOW MOVING CELLS IN S TX
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SATELLITE ANALYSIS AND TRENDS...A WEAK MID/UPPER LOW SEEN ON WV
IMAGERY IS CURRENTLY MOVING ACROSS S TX NEWD ALONG A LINE THAT WILL
TAKE IT OVER THE TX GULF COAST. WEAK INSTABILITY ASSCD WITH THIS LOW
ALONG WITH LOW LVL CNVG ALONG A SEABREEZE BDNRY IS CONTINUING TO SPARK
MOSTLY WARM TOP CNVTN OVER PARTS OF WEBB/DIMMIT/LA SALLE/FRIO/AND ZAVALA
COUNTIES. THOUGH SOME OF THESE STORMS HAVE FORMED..DIED OUT..AND REFORMED
ALONG THE OUTFLOWS...OTHERS HAVE SURVIVED AND ARE SLOWLY PROGRESSING TO
THE WNW. THE MOST PROMINENT OF THESE BEING OVER SRN FRIO COUNTY WITH AN
OVERSHOOTING TOP ON VIS IMAGERY AND CLOUD TOP TEMP OF -64C. SLOW MOVEMENT
OF THIS CELLS AND THE OTHERS AROUND IT..ALONG WITH THE LIKELY POSSIBILITY
THAT A MERGER COULD OCCUR BETWEEN MULTIPLE CELLS IN THE NEXT HR INVOF
SE ZAVALA/W FRIO/NW DIMMIT COUNTIES WILL LEAD TO HVY RAINFALL. PW VALUES
PER GOES SOUNDER/GPS VALUES VARY DRAMATICALLY FROM E-W ACROSS THE STORM
ENVIRONMENT WITH 1.5-1.6" VALUES ON THE ERN SIDE AND UNDER 1" VALUES W
OF KCOT. JUST IN 0045Z IMAGE SHOWS MULTIPLE OVERSHOOTING TOPS NOW ON THE
CELL OVER FRIO COUNTY WITH TEMPS TO -68C AND EXPANDING TO THE N AND S DUE
TO THE COLLAPSE OF A PREVIOUS CELL THAT WAS OVER UVALDE COUNTY. MANUEL
STLT ESTIMATES GIVE UP TO 1.3" AMOUNTS/LAST 30 MIN ASSCD WITH THIS CELL
AND RATES SHOULD INCREASE WITH EXPECTED MERGERS.
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ADDTL SLOW MOVING CELLS ASSCD WITH THE BACKSIDE OF THE VORT ARE MOVING
EWD ACROSS THE US BORDER S OF KLRD INTO ZAPATA COUNTY THAT WILL KEEP AN
EYE ON..BUT FOR NOW HEAVIER RAINS ARE TO THE N. WEAKENING CAPE WITH LOSS
OF DAYTIME HEATING SHOULD LIMIT STORMS TO ONLY A FEW MORE HRS ANYWAYS.
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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 2923 9872 2721 9808 2613 9929 2868 10077
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