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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 03/04/08 0411Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 THRU 0402Z GG
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LOCATION...S MISSISSIPPI...E LOUISIANA...
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ATTN WFOS...MOB...JAN...LIX...LCH...
ATTN RFCS...LMRFC...
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EVENT...SQUALL LINE (PRE G12 ECLIPSE
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SATELLITE ANALYSIS AND TRENDS...VERY IMPRESSIVE SQUALL LINE CONTINUES TO
MARCH ACROSS S MS WITH NEW DEVELOPMENT SOUTHWARD ALONG THE LINE INTO E LA.
IR TOPS ARE CONTINUE TO COOL WITH MANY OF THE INDIVIDUAL CORE/OVERSHOOTING
TOPS BEING SEEN IN A LINE FROM KEMPER TO WALTHALL COUNTIES IN MS AND
WASHINGTON PARISH IN LA REACHING NEAR -80C INDICATIVE OF VERY STRONG
UPDRAFTS. GOES SOUNDER AND GPS SHOWED INCREASING PWS ACROSS THE DISCUSSED
AREA RANGING FROM 1.6-1.8" WITH A STRONG SOUTHERLY LLJ IN ADVANCE OF THE
SSW TO NNE ORIENTED SQUALL LINE LEADING TO EXTREMELY HIGH 850 MOISTURE
TRANSPORT PER RUC2 MESO ANALYSIS FIELDS. IN THIS ENVIRONMENT A HOUR OR SO
AGO...PRE-SQUALL LINE SHOWERS AND THUNDERSTORMS MOVED THROUGH MUCH OF S MS
WITH MDT RAINFALL ANDWITH THE ADVANCEMENT OF THE SQUALL LINE MANY OF THESE
CELLS MOVED DUE NORTH MERGING INTO SQUALL LINE...LEADING TO PRE-SQUALL
LINE TOTALS OF .5-1.0" WITH HIGHER MAXIMA ASSOCIATED WITH THOSE MERGERS.
AUTOESTIMATORS ARE CONFLICTING RIGHT NOW WITH WITH ONE INDICATING A LARGE
SWATH OF 1-2" RAIN TOTALS ALONG THE LINE WHICH SEEMS OK, BUT A BIT LOW
AND THE OTHER  WITH A LARGE AREA OF 2.5-3.5" SWATH...WHICH IS CLEARLY OVER
DONE BUT HITS THE LOCALIZED MAXIMA RIGHT OVER WALTHALL AND PIKE COUNTIES.
PLEASE SEE A GRAPHIC OF 6HR TOTALS...THE TOTALS OVER E MS/AL ARE OVERDONE
AS CIRRUS BLOWOFF HAS INCORRECTLY INCREASED TOTALS THERE BUT OVER W AND
SC MS...TOTALS LOOK VERY GOOD BASED ON MANUAL ESTIMATIONS THAT AGREE.

FURTHER SOUTH IN LA... ISOLATED CONVECTION THAT DEVELOPED OVER THE GULF
HAS MOVED QUICKLY NEWARD ALONG THE BOUNDARY TOWARD THE SOUTHWARD BUILDING
SQUALL LINE IN NE LA.  RECENT IMAGES SHOW THAT THE TWO AREAS HAVE MERGED
AND COOLED OVER W ST.TAMMANY PARISH...THIS WILL LEAD TO TOTALS OVER 2"
VERY QUICKLY.
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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 3219 9050 3217 8860 2821 8881 2857 9178
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