diff --git a/physics/CONV/SAMF/samfdeepcnv.f b/physics/CONV/SAMF/samfdeepcnv.f
index 7c2d9acf8..3ad067657 100644
--- a/physics/CONV/SAMF/samfdeepcnv.f
+++ b/physics/CONV/SAMF/samfdeepcnv.f
@@ -215,7 +215,8 @@ subroutine samfdeepcnv_run (im,km,first_time_step,restart,        &
 !
 !  parameters for prognostic sigma closure                                                                                                                                                      
       real(kind=kind_phys) omega_u(im,km),zdqca(im,km),tmfq(im,km),
-     &     omegac(im),zeta(im,km),dbyo1(im,km),sigmab(im),qadv(im,km)
+     &     omegac(im),zeta(im,km),dbyo1(im,km),sigmab(im),qadv(im,km),
+     &     sigmaoutx(im)
       real(kind=kind_phys) gravinv,invdelt,sigmind,sigminm,sigmins
       parameter(sigmind=0.01,sigmins=0.03,sigminm=0.01)
       logical flag_shallow, flag_mid
@@ -3423,17 +3424,28 @@ subroutine samfdeepcnv_run (im,km,first_time_step,restart,        &
         endif
       enddo
 c
-c  convective cloud water
+!
+      if(progsigma)then
+         do i = 1, im
+            sigmaoutx(i)=max(sigmaout(i,1),0.0)
+            sigmaoutx(i)=min(sigmaoutx(i),1.0)
+         enddo
+      endif
 c
 !> - Calculate convective cloud water.
       do k = 1, km
-        do i = 1, im
-          if (cnvflg(i) .and. rn(i) > 0.) then
-            if (k >= kbcon(i) .and. k < ktcon(i)) then
-              cnvw(i,k) = cnvwt(i,k) * xmb(i) * dt2
+         do i = 1, im
+            if (cnvflg(i) .and. rn(i) > 0.) then
+               if (k >= kbcon(i) .and. k < ktcon(i)) then
+                  cnvw(i,k) = cnvwt(i,k) * xmb(i) * dt2
+                  if(progsigma)then
+                     cnvw(i,k) = cnvw(i,k) * sigmaoutx(i)
+                  else
+                     cnvw(i,k) = cnvw(i,k) * sigmagfm(i)
+                  endif
+               endif
             endif
-          endif
-        enddo
+         enddo
       enddo
 c
 c  convective cloud cover
diff --git a/physics/CONV/SAMF/samfshalcnv.f b/physics/CONV/SAMF/samfshalcnv.f
index f720c4701..ce783ea15 100644
--- a/physics/CONV/SAMF/samfshalcnv.f
+++ b/physics/CONV/SAMF/samfshalcnv.f
@@ -162,7 +162,7 @@ subroutine samfshalcnv_run(im,km,itc,ntc,cliq,cp,cvap,            &
 !  parameters for prognostic sigma closure
       real(kind=kind_phys) omega_u(im,km),zdqca(im,km),tmfq(im,km),
      &                     omegac(im),zeta(im,km),dbyo1(im,km),
-     &                     sigmab(im),qadv(im,km)
+     &                     sigmab(im),qadv(im,km),sigmaoutx(im)
       real(kind=kind_phys) gravinv,dxcrtas,invdelt,sigmind,sigmins,
      &                     sigminm
       logical flag_shallow,flag_mid
@@ -2397,20 +2397,29 @@ subroutine samfshalcnv_run(im,km,itc,ntc,cliq,cp,cvap,            &
         endif
       enddo
 c
-c  convective cloud water
-c
-!> - Calculate shallow convective cloud water.
+      if(progsigma)then
+         do i = 1, im
+            sigmaoutx(i)=max(sigmaout(i,1),0.0)
+            sigmaoutx(i)=min(sigmaoutx(i),1.0)
+         enddo
+      endif
+      
+c     convective cloud water
       do k = 1, km
-        do i = 1, im
-          if (cnvflg(i)) then
-            if (k >= kbcon(i) .and. k < ktcon(i)) then
-              cnvw(i,k) = cnvwt(i,k) * xmb(i) * dt2
+         do i = 1, im
+            if (cnvflg(i)) then
+               if (k >= kbcon(i) .and. k < ktcon(i)) then
+                  cnvw(i,k) = cnvwt(i,k) * xmb(i) * dt2
+                  if (progsigma) then
+                     cnvw(i,k) = cnvw(i,k) * sigmaoutx(i)
+                  else
+                     cnvw(i,k) = cnvw(i,k) * sigmagfm(i)
+                  endif
+               endif
             endif
-          endif
-        enddo
+         enddo
       enddo
-
-c
+c     
 c  convective cloud cover
 c
 !> - Calculate convective cloud cover, which is used when pdf-based cloud fraction is used (i.e., pdfcld=.true.).
diff --git a/physics/PBL/SATMEDMF/satmedmfvdifq.F b/physics/PBL/SATMEDMF/satmedmfvdifq.F
index 95a1e35e5..c0e43e809 100644
--- a/physics/PBL/SATMEDMF/satmedmfvdifq.F
+++ b/physics/PBL/SATMEDMF/satmedmfvdifq.F
@@ -275,7 +275,7 @@ subroutine satmedmfvdifq_run(im,km,ntrac,ntcw,ntrw,               &
       parameter(elmfac=1.0,elefac=1.0,cql=100.)
       parameter(dw2min=1.e-4,dkmax=1000.,xkgdx=1000.)
       parameter(qlcr=3.5e-5,zstblmax=2500.)
-      parameter(xkinv1=0.4,xkinv2=0.3)
+      parameter(xkinv1=0.15,xkinv2=0.3)
       parameter(h1=0.33333333,hcrinv=250.)
       parameter(vegflo=0.1,vegfup=1.0,z0lo=0.1,z0up=1.0)
       parameter(vc0=1.0,zc0=1.0)