YDROLOGIC OUTLOOK FOR NORTH AND CENTRAL GEORGIA NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1226 PM EST FRI MAR 10 2006
...SPRING FLOOD OUTLOOK FOR NORTH AND CENTRAL GEORGIA...
FOR THE SPRING OF 2006 THE SOUTHEAST RIVER FORECAST CENTER IS CALLING FOR NORMAL FLOODING POTENTIAL FOR NORTH AND CENTRAL GEORGIA.
...EXISTING CONDITIONS...
SOIL MOISTURE - SOIL MOISTURE CONDITIONS ARE NEAR NORMAL FOR NORTH AND CENTRAL GEORGIA DUE TO OCCASIONAL WEATHER SYSTEMS PRODUCING RAINFALL ACROSS THIS AREA.
AVERAGE DAILY STREAM FLOW IS RUNNING NEAR NORMAL. OCCASIONAL VARIANCES HAVE OCCURRED DUE TO PERIODIC RAINFALL...BUT OTHERWISE CONDITIONS HAVE REMAINED NEAR NORMAL FOR MOST OF THE YEAR.
PAST RAINFALL - BELOW NORMAL RAINFALL HAS PREVAILED SINCE THE BEGINNING OF THE YEAR ACROSS MOST OF NORTH AND CENTRAL GEORGIA. THE AREA WAS GENERALLY 60 TO 90 PERCENT OF NORMAL WITH RAINFALL TOTALS OF 5 TO 9 INCHES. THE EXCEPTION HAS BEEN A NEAR NORMAL AREA OF RAINFALL IN NORTH GEORGIA FROM ROME TO COMMERCE TO WASHINGTON TO CARROLLTON. THIS AREA RECEIVED 9 TO 12 INCHES OF RAINFALL AND INCLUDES THE ATLANTA METRO COUNTIES. ONLY ISOLATED MINOR FLOODING OCCURRED IN THIS AREA AFTER RAIN EVENTS OF TWO INCHES OR MORE.
A STORM SYSTEM MOVED THROUGH THE AREA OVERNIGHT...BRINGING A SHORT PERIOD OF RAIN. HOWEVER...NO SIGNIFICANT RISES ON AREA RIVERS ARE EXPECTED TO OCCUR FROM THIS RAINFALL. ANOTHER STORM SYSTEM APPROACHING FROM THE WEST WILL BRING THE NEXT SIGNIFICANT CHANCE OF RAIN LATE MONDAY AND TUESDAY.
RESERVOIR CONSIDERATIONS - POOL LEVELS OF MOST MAJOR RESERVOIRS IN NORTH AND CENTRAL GEORGIA ARE RUNNING VERY CLOSE TO THE "RULE CURVE", OR TARGET LEVELS, FOR THIS TIME OF YEAR. HOWEVER, INFLOWS INTO RESERVOIRS ARE BEGINNING TO RUN BELOW NORMAL IN SOME CASES. IT IS DURING THIS TIME OF YEAR THAT MANY OPERATORS PLAN TO FILL THEIR RESERVOIRS TO SUMMER LEVELS. NORMAL RAINFALL SHOULD TAKE CARE OF THAT SITUATION.
METEOROLOGICAL OUTLOOK - THE SOUTHEAST U.S. WEATHER MOVES INTO A MORE TRANSITIONAL ENVIRONMENT BETWEEN SPRING AND SUMMER AND THE CHANCES OF RAIN INCREASE. RAINFALL POTENTIAL LOOKS TO BE IN THE NORMAL RANGE.
LONGER TERM, WEAK LA NINA CONDITIONS CHARACTERIZE THE PREDOMINANT CLIMATE SIGNAL. THERE IS A SLIGHT CHANCE THE AREA WILL SEE BELOW NORMAL PRECIPITATION. THE ISSUE TO WATCH CLOSELY IS SPRING RAINFALL AS THERE IS A REASONABLY STRONG CORRELATION BETWEEN SPRING RAINFALL TOTALS AND LATER SEASON RAINFALL. IF THERE IS A DRY SPRING...A DRY LATE SPRING AND EARLY SUMMER IS MORE LIKELY. WITH A WET SPRING...A WET LATE SPRING AND EARLY SUMMER IS LIKELY.
...OUTLOOK...
NORMAL CHANCES FOR FLOODING ARE EXPECTED FOR THE REST OF 2006 FOR NORTH AND CENTRAL GEORGIA...WITH NEAR NORMAL RAINFALL EXPECTED ON NEAR NORMAL SOIL CONDITIONS.
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FOR DETAILED WEB INFORMATION CONCERNING RIVER STAGES AND FORECASTS FOR NORTH AND CENTRAL GEORGIA...GO TO:
WWW.SRH.NOAA.GOV/FFC
AND CLICK ON "RIVERS & LAKES AHPS".
FOR PRECIPITATION ANALYSIS...GO TO:
WWW.SRH.NOAA.GOV/SERFC/QPFVSMAP.SHTML
FOR FORECAST PRECIPITATION...GO TO:
WWW.SRH.NOAA.GOV/SERFC/QPFPAGE.HTML
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