I am running RegCM4.4.4 coupled to CLM over East Asia, with 

NCEP-NCAR Reanalysis LBCs.

I am running a series of 2010-2012 simulations using different

convective schemes, but the one using Kuo always

crashes about 1-3 weeks into the run.  I have tried lowering

dt several times, but the CFL violation keeps occurring.  

I also tried starting the run one month later but it crashed yet again.

I included the key *.in parameters and error messages below.

I attached the full *.in file.

Any suggestions on how to resolve this issue?

Thanks,

Michael

iy=160

jx=175

kz=23

ds=40.0

iproj='ROTMER'

icup_lnd=1 (Kuo)

icup_ocn = 1 (Kuo)

dt=30.

dtrad=30.

dtabem=18.

dtsrf=600.

 MAXVAL ATEN T :   4.22682289290933

 II :          72 , JJ :         139 , KK :          11

 MAXVAL ATEN T :   1.45830417725086

 II :          93 , JJ :         136 , KK :           1

 MAXVAL ATEN U :   12.0936481888012

 II :          74 , JJ :         135 , KK :          23

 MAXVAL ATEN V :   8.26249500627532

 II :          76 , JJ :         147 , KK :          23

 MAXVAL ATEN U :   7.14489013065529

 II :          93 , JJ :         144 , KK :          23

 MAXVAL ATEN V :   7.73958027802003

 II :          97 , JJ :         137 , KK :          23

 MAXVAL ATEN QV :  3.579704478870953E-002

 II :          91 , JJ :         139 , KK :          12

 -------------- FATAL CALLED ---------------

  Fatal in file: mod_tendency.F90 at line:     1604

 CFL VIOLATION

 -------------------------------------------

 -------------- FATAL CALLED ---------------

  Fatal in file: mod_tendency.F90 at line:     1604

 CFL VIOLATION

 -------------------------------------------

Abort(1) on node 75 (rank 75 in comm -2080374783): application called MPI_Abort(comm=0x84000001, 1) - process 75

Abort(1) on node 76 (rank 76 in comm -2080374783): application called MPI_Abort(comm=0x84000001, 1) - process 76

ERROR: 0031-300  Forcing all remote tasks to exit due to exit code 1 in task 76

forrtl: error (78): process killed (SIGTERM)

ATM variables written at 2010-02-26 12:00:00 UTC

 SRF variables written at 2010-02-26 12:00:00 UTC

 RAD variables written at 2010-02-26 12:00:00 UTC

 WHUUUUBBBASAAAGASDDWD!!!!!!!!!!!!!!!!

 No more atmosphere here....

 CFL violation detected, so model STOP

 #####################################

 #            DECREASE DT !!!!       #

 #####################################

 WHUUUUBBBASAAAGASDDWD!!!!!!!!!!!!!!!!

 No more atmosphere here....

 CFL violation detected, so model STOP

 #####################################

 #            DECREASE DT !!!!       #

 #####################################

 Abort called by computing node           75 at 2015-07-23 14:52:41.203 -0600

 Abort called by computing node           76 at 2015-07-23 14:52:41.203 -0600