<div dir="ltr"><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Grace Peng</b> <span dir="ltr"><<a href="mailto:grace@ucar.edu">grace@ucar.edu</a>></span><br>Date: Wed, Feb 10, 2016 at 9:56 PM<br>Subject: nearly zero precipitation band near the domain boundary<br>To: <a href="mailto:xhu@ou.edu">xhu@ou.edu</a>, rdahelp <<a href="mailto:rdahelp@ucar.edu">rdahelp@ucar.edu</a>>, wrfhelp NCAR-MMM <<a href="mailto:wrfhelp@ucar.edu">wrfhelp@ucar.edu</a>><br><br><br><div dir="ltr">Xiaoming,<div><br></div><div>What are you using for the lateral boundary conditions</div><div>(LBC) for your WRF runs?</div><div><br></div><div>Are you using analyses?</div><div>Recall that analyses start out "dry", and</div><div>form precipitation during the forecast period.</div><div>If you are feeding in </div><div>dry LBCs at the edges of your domain</div><div>throughout your WRF run, then</div><div>the edges will tend to be dry.</div><div><br></div><div><a href="http://ncarrda.blogspot.com/2015/04/whats-difference-between-gfs-and-fnl.html" target="_blank">http://ncarrda.blogspot.com/2015/04/whats-difference-between-gfs-and-fnl.html</a></div><div><a href="http://ncarrda.blogspot.com/2015/04/analysis-forecast-reanalysis-whats.html" target="_blank">http://ncarrda.blogspot.com/2015/04/analysis-forecast-reanalysis-whats.html</a></div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Grace<br clear="all"><div><br></div>-- <br><div><div dir="ltr">Grace Peng, PhD<div>Atmospheric & Geoscience Research Data Archive</div><div>Computational & Information Systems Laboratory</div><div>National Center for Atmospheric Research</div><div><a href="tel:303-497-1218" value="+13034971218" target="_blank">303-497-1218</a></div></div></div>
</div></font></span></div>
</div><br><div><br></div>
</div>