MESOSCALE PRECIPITATION DISCUSSION 0594
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
115 AM EDT TUE AUG 23 2016
 
AREAS AFFECTED...EASTERN CA...SOUTHERN NV...NORTHWEST
AZ...SOUTHWEST UT 
 
CONCERNING...HEAVY RAINFALL...FLASH FLOODING POSSIBLE 
 
VALID 230514Z - 230830Z
 
SUMMARY...THE THREAT OF FLASH FLOODING WILL CONTINUE IN THE VERY
SHORT TERM AS SLOW MOVING THUNDERSTORMS PERSIST.  HOWEVER...THE
THREAT FOR FLASH FLOODING SHOULD GRADUALLY BE DIMINISHING LATER
THIS EVENING OR VERY EARLY MORNING HOURS. 

DISCUSSION...RADAR IMAGERY STILL SHOWS OCCASIONAL FLARE UPS OF
CONVECTION...ESPECIALLY TO THE EAST OF LAS VEGAS...WITH A
CORRESPONDING INCREASE IN RAINFALL RATES.  GOES-14 SRSO ALSO
CONTINUED TO SHOW POCKETS OF VERY COLD CLOUD TOP TEMPERATES STILL
PIERCING THE BROADER ANVIL SHIELD...AN INDICATION OF VERY STRONG
UPDRAFTS PERSIST.  THE LOCATION OF THE COLDEST CLOUD TOPS WAS
CLOSE TO THE LOCATION OF A LOW/MID LEVEL CIRCULATION CENTER AND IN
PROXIMITY TO THE HIGHEST VALUES OF ML CAPE. 

THE ATMOSPHERE IN THIS AREA IS CHARACTERIZED BY WEAK FLOW IN A
REGION OF DEEP MOISTURE.  CONSEQUENTLY...THE POTENTIAL REMAINS FOR
SOME RAINFALL RATES AROUND 1 INCH PER HOUR.

CONDITIONS SHOULD BE IMPROVING LATER THIS EVENING OR IN THE EARLY
HOURS OF TUESDAY MORNING GIVEN THE LOSS OF HEATING AND WITH THE
INSTABILITY HAVING BEEN USED UP BY THE CONVECTION THIS EVENING.  

BANN

ATTN...WFO...FGZ...PSR...SLC...VEF...

ATTN...RFC...CBRFC...CNRFC...

LAT...LON   37541360 35871270 34711321 34071452 34221528 
            34361529 35681510 36791518