ZCZC NFDSPENES ALL
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TXZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/23/08 1550Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 1540Z  HANNA
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LOCATION...TEXAS...
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ATTN WFOS...CRP...BRO...
ATTN RFCS...WGRFC...
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EVENT...DOLLY CONTINUES MOVING NW TOWARDS THE SOUTHERN TX COAST
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SATELLITE ANALYSIS AND TRENDS...OVER THE LAST SEVERAL HOURS SATELLITE
PRESENTATION OF DOLLY OVER THE N SEMI-CIRCLE OF SYSTEM HAS DEGRADED
AND THE EYE WALL APPEARS AS THOUGH IT HAS BECOME OPEN IN THE N AND NW
QUADRANTS OF SYSTEM.  CURRENTLY IT APPEARS AS THOUGH THE BEST SATELLITE
PRESENTATION OF SYSTEM HAS ONCE AGAIN MIGRATED TOWARDS THE SOUTHERN
HALF OF SYSTEM AND EVEN THAT HAS UNDERGONE SOME CLOUD TOP WARMING OVER
THE LAST 30 MINUTES OR SO WHICH SUGGESTS AT LEAST A TEMPORARY WEAKENING
OF RAINFALL RATES.  STILL THOUGH, RATHER IMPRESSIVE SPIRAL BANDS ARE
INDICATED FROM THE BAFFIN BAY AREA AND EXTENDING S TOWARDS THE HRL AND
BRO AREA.  THIS SPIRAL BAND HAS UNDERGONE GRADUAL CLOUD TOP WARMING WITH
TIME AND IT APPEARS AS THOUGH ANOTHER SPIRAL BAND IS IN THE PROCESS OF
RAPIDLY COOLING ALONG AN AXIS FROM PADRE ISLAND TO PIL TOWARDS THE MOUTH
OF THE RIO GRANDE RIVER.  BELIEVE THAT THIS WILL GRADUALLY BECOME THE
DOMINANT SPIRAL BAND WITH TIME AND WOULD EXPECT LOCAL RAINFALL RATES
OF 1-2"/HR WITH THIS FEATURE.  AUTOMATED SATELLITE ESTIMATES STILL
SUGGESTING RAINFALL TOTALS OF 4-6" OVER A 6 HOUR PERIOD WITH THE MOST
ACTIVE PORTION OF THE SYSTEM.  ISALLOBARIC ANALYSIS STILL INDICATING
THAT BEST PRESSURE FALLS ARE SOMEWHERE IN THE VIC OF PIL BUT WITH A 330
WIND DIRECTION OUT OF PIL, THIS WOULD SUGGEST A LANDFALL POINT POSSIBLY
JUST N OF PIL.  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 2816 9628 2762 9498 2471 9499 2426 9703 2482 9847 2632
9893 2745 9874 2814 9760
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