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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 06/21/08 2035Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 2025Z  HANNA
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LOCATION...SOUTH CAROLINA...GEORGIA...
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ATTN WFOS...ILM...CHS...CAE...JAX...TAE...
ATTN RFCS...SERFC...
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EVENT...HEAVY RAIN THREAT FROM LOCALIZED TRAINING AND QUASI-STATIONARY
CELLS
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SATELLITE ANALYSIS AND TRENDS...OVER THE LAST 1-2 HOURS CONVECTION HAS
CONTINUED TO DEVELOP ALONG REMNANT FRONTAL BOUNDARY/PRESSURE TROF THROUGH
REGION.  THE CONVECTION THAT HAS BEEN DEVELOPING HAS ONLY SLOWLY BEEN
LIFTING NE AND THERE HAS BEEN A TENDENCY FOR QUASI-STATIONARY CONVECTIVE
CELLS ALONG WITH UPSTREAM REGENERATION AIDED BY UNI-DIRECTIONAL WIND
PROFILE.
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THE TWO AREAS OF MOST CONCERN AT THE PRESENT TIME ARE JUST SOUTH OF CHS,
WHERE IR AND VIS IMAGERY SHOWS THAT A SMALL SCALE CONVECTIVE WEDGE HAS
BEEN NEARLY STATIONARY OVER THE PAST HOUR.  WOULD ANTICIPATE THAT RAINFALL
TOTALS OVER THE PAST HOUR ARE LIKELY AROUND 2.0" OVER THE SOUTHERN
PORTIONS OF CHARLESTON.  ADDITIONALLY, ANOTHER SMALL SCALE CONVECTIVE
WEDGE WAS LOCATED OVER CNTRL DORCHESTER COUNTY AND ALTHOUGH SATELLITE
PRESENTATION FOR HEAVY RAIN IS NOT AS ORGANIZED AS THE CELL SOUTH OF CHS,
WOULD STILL ANTICIPATE THAT RAINFALL OF 1.0-2.0" HAS FELL OVER THE PAST
HOUR IN THIS VIC.  IT DOES APPEAR AS THOUGH MULTIPLE OUTFLOW BOUNDARIES
ARE BEGINNING TO INTERACT UPSTREAM OVER CNTRL COLLETON COUNTY AND THIS
WILL LIKELY PROLONG THE HEAVY RAIN THREAT OVER DORCHESTER COUNTY FOR
THE NEXT HOUR WITH THE POTENTIAL FOR ANOTHER 1.0-2.0".
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THE SECOND AREA OF CONCERN IS WITH NEARLY STATIONARY CONVECTION ALONG THE
SE GA COAST JUST SOUTH OF SAV.  HAVE SEEN NUMEROUS CONVECTIVE MERGERS
ALONG WITH OVERSHOOTING TOPS FROM MCINTOSH TOWARDS COASTAL CHATHAM
COUNTY OVER THE LAST HOUR.  SIMILAR TO RAINFALL ESTIMATES OVER SC,
WOULD BELIEVE THAT 1-2" HAS FELL OVER THE PAST HOUR WITH THE POTENTIAL
FOR ANOTHER 1.0-2.0" OVER THE NEXT HOUR.
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OVERALL OUTLOOK FOR THE DISCUSSION AREA.....OBJECTIVELY ANALYZED SURFACE
MOISTURE CONVERGENCE MAX APPEARS TO BE LYING APPROXIMATELY OVER SOUTH
CENTRAL GA AND WITH THIS PLACEMENT AND THE UNI-DIRECTIONAL WIND PROFILE IN
PLACE THE POTENTIAL WILL CONTINUE TO EXIST FOR CONVECTIVE REGENERATION
OVER SOUTH CENTRAL GA WITH DOWNSTREAM TRAINING TO THE ENE OF THAT.
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 3334 8018 3331 7941 3321 7919 3256 7910 3199 7982 3120
8102 3067 8251 3078 8330 3122 8331 3147 8236 3223 8136
3304 8074
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