MESOSCALE PRECIPITATION DISCUSSION 0326
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
853 AM EDT WED AUG 27 2014
 
AREAS AFFECTED...NORTHEASTERN NEBRASKA 
 
CONCERNING...HEAVY RAINFALL...FLASH FLOODING POSSIBLE 
 
VALID 271253Z - 271553Z
 
SUMMARY...SLOW-MOVING THUNDERSTORMS MAY TEND TO PERSIST THROUGH
THE LATE MORNING. RAINFALL RATES OF 1 TO 2 INCHES/HR...IN ADDITION
TO HEAVY RAINS THAT HAVE ALREADY OCCURRED...MAY FOSTER A THREAT
FOR FLASH FLOODING.

DISCUSSION...THE LATEST IR SAT IMAGERY SHOWS 
CLOUD TOPS COOLING ONCE AGAIN ACROSS NORTHEASTERN NEB.  SUPPORTED
BY A MID LEVEL TROUGH/IMPULSE LIFTING ACROSS THE CENTRAL HIGH
PLAINS AND GOOD UPPER DIVERGENCE ALONG THE RIGHT-ENTRANCE REGION
OF THE JET...EXPECT CONVECTION TO CONTINUE AT LEAST FOR THE NEXT
FEW HOURS ACROSS THE OUTLOOK AREA.  BROAD SOUTHERLY LOW LEVEL
INFLOW INTO A SLOW MOVING SURFACE BOUNDARY SHOULD HELP SUSTAIN
HIGH PWS ON THE ORDER OF 1.75-2 INCHES...WHICH ALONG WITH THE
MID-UPPER FORCING MAY SUPPORT HEAVY RAINFALL RATES ACROSS THE AREA
FOR THE NEXT FEW HOURS. 

06Z NAM CONEST AND THE 11Z HRRR BOTH SHOW RAINFALL RATES OF 1-2
INCHES/HR FOR THE NEXT FEW HOURS ACROSS PORTIONS OF THE
REGION...WHICH MAY RESULT IN FLASH FLOODING.

PEREIRA

ATTN...WFO...FSD...LBF...OAX...

ATTN...RFC...MBRFC...

LAT...LON   41520286 40860105 39749950 41480584 
42919863 42739721 41979604 41299629 41339686 
            41719769 42099847 42219920 42459984 42789954