Damn Radar is starting to light up again...
![Image](http://i65.tinypic.com/dqrz44.gif)
MESOSCALE PRECIPITATION DISCUSSION 0341
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
804 PM EDT WED JUN 20 2018
AREAS AFFECTED...SOUTH TEXAS
CONCERNING...HEAVY RAINFALL...FLASH FLOODING POSSIBLE
VALID 210003Z - 210603Z
SUMMARY...CONVECTION HAS ENHANCED EARLY THIS EVENING ON THE
EASTERN SIDE OF THE STATIONARY UPPER VORT OVER SOUTH TEXAS. SLOW
MOVEMENT AND TRAINING OF CELLS POSSIBLE INTO THIS EVENING.
DISCUSSION...LITTLE MOVEMENT EXPECTED TO THE MCV OVER FAR SOUTH
TEXAS THIS EVENING. CONVECTION HAS BEGUN TO ENHANCE ON THE EASTERN
AND SOUTHEASTERN SIDE OF THIS MCV IN THE PERSISTENT AXIS OF MUCH
ABOVE AVERAGE PW VALUES...2.5 TO 3 STANDARD DEVIATIONS ABOVE THE
MEAN. AT THE MOMENT...THE STRONGEST CONVECTION IS ON THE EASTERN
AND SOUTHEASTERN SIDE OF THIS NEARLY STATIONARY VORT ALONG THE
SOUTH TEXAS COAST. THIS IS ON THE WESTERN EDGE OF THE AXIS OF
VERY UNSTABLE AIR SITUATED JUST OFFSHORE...MUCAPE VALUES IN THE
2000-3000+ RANGE. WITH NO SIGNIFICANT MOVEMENT TO THIS MCV AND
PERSISTENT SOUTH SOUTHEASTERLY INFLOW OF VERY UNSTABLE AIR
OFFSHORE...EXPECT THE POTENTIAL FOR SLOW MOVING AND TRAINING OF
CELLS TO CONTINUE INTO THIS EVENING...ESPECIALLY ON THE EASTERN
SIDE OF THIS MCV ACROSS COASTAL SOUTH TEXAS.
SIMULATED RADARS FROM THE HRRX SHOW THIS TRAINING CONTINUING THRU
THIS EVENING INTO THE EARLY HOURS OF THURSDAY. THE HRRR
HOWEVER...HAS A SHORTER PERIOD OF TRAINING AND ATTEMPTS TO DEVELOP
HEAVY PRECIP FARTHER INLAND ACROSS THE LOWER RIO GRANDE VALLEY IN
LIEU OF COASTAL ACTIVITY. THE HRRX ALSO SHOWS THE INLAND ACTIVITY
BUT MAINTAINS THE TRAINING THREAT ALONG THE COAST. GIVEN THE
HISTORY OF TRAINING WITH THIS SYSTEM ALONG THE TX COAST AND THE
EXPECTED SLOW MOVEMENT OF THE MCV...BELIEVE THE HRRRX MAY HAVE A
BETTER HANDLE ON THE FLASH FLOOD POTENTIAL GOING INTO THIS EVENING
AND OVERNIGHT.
ORAVEC
ATTN...WFO...BRO...CRP...
ATTN...RFC...WGRFC...
LAT...LON 28149783 27279643 25069699 25599920 26439962
27659907