MESOSCALE PRECIPITATION DISCUSSION 0232
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
721 AM EDT WED MAY 30 2018

AREAS AFFECTED...CENTRAL TO NORTHERN ALABAMA

CONCERNING...HEAVY RAINFALL...FLASH FLOODING POSSIBLE

VALID 301120Z - 301420Z

SUMMARY...ADDITIONAL TRAINING CONVECTION WITH HEAVY RAINFALL RATES
EXPECTED TO CONTINUE...RAISING FURTHER FLASH FLOODING CONCERNS
THIS MORNING.

DISCUSSION...RECENT RETURNS FROM KBMX RADAR CONTINUE TO SHOW
TRAINING CONVECTION PRODUCING RAINFALL RATES OF 1-2 IN/HR ACROSS
WEST-CENTRAL INTO CENTRAL ALABAMA.  LATEST MESOANALYSIS SHOWS DEEP
MOISTURE (PWS AROUND 2 INCHES AND 850-300 RH VALUES IN EXCESS OF
80 PERCENT) ALONG AN AXIS OF DEEP SOUTHWESTERLY FLOW CONTINUING TO
INTERACT WITH A SERIES OF SHORTWAVES ROTATING AROUND TO THE SOUTH
OF THE UPPER LOW ASSOCIATED WITH ALBERTO.  VERY EFFICIENT RAINFALL
PROCESSES ALONG WITH TRAINING CONVECTION MAY CONTINUE THROUGH THE
MORNING...PRODUCING HEAVY RAINFALL AMOUNTS ACROSS AREAS WITH
NEARLY SATURATED TO SATURATED SOILS...RAISING FURTHER FLASH
FLOODING CONCERNS.  FOR THE 3-HR PERIOD ENDING AT
15Z...NEIGHBORHOOD PROBABILITIES FROM THE 06Z RUN OF THE HREF SHOW
A 30 PERCENT CHANCE OR GREATER FOR ADDITIONAL AMOUNTS OF AN INCH
OR MORE WITHIN THE HIGHLIGHTED AREA.

PEREIRA

ATTN...WFO...BMX...HUN...

ATTN...RFC...LMRFC...SERFC...

LAT...LON   34488575 33118610 32458734 32458837 32958831
            33178769 34288649