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<h2>Additional Links for Today's Discussion</h2>
<ul>

<h2><a name="Large_scale_Pattern_7d_to_7d"></a> Large scale Pattern -7d to +7d </h2>

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?h500_slp+/-168//" target="_top">500 hPa heights and surface pressure</a>

<h2><a name="Snow_in_Washington_Thursday_Feb"></a><a name="Snow_in_Washington_Thursday_Feb_"></a> Snow in Washington, Thursday Feb 26th </h2>

First, the cold:

Western Washington

No cold "surge" from the north at Seattle, so why did it cool so readily overnight (4 C in 6 hours), even with clouds?

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?ir_common_full+start+2009022512+end+2009022612" target="_top">IR satellite image showing cold surge along coast</a>

<li><a href="http://www.atmos.washington.edu/images/profiler.spt/2009022609.gif" target="_top">Wind profiler at Sand Point shows overnight cooling</a>

Meteogram at SEATAC:

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?meteogram_ksea+start+2009022512+end+2009022700" target="_top">Meteogram, SEATAC</a>

Distribution of snow (02/26):

<li><a href="http://www.cocorahs.org/Maps/ViewMap.aspx?state=WA" target="_top">Community Collaborative Rain, Hail, and Snow Network (CoCorahs)</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/057.1845.rgb143.jpg" target="_top">MODIS RGB Satellite image (18:45 UTC)</a>

How well did the WRF do?

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?mm5d3_ww_snow1+2009022600///1" target="_top">WRF: 26/00 UTC run</a>

Rooftop webcam snowmelt:

<li><a href="http://www.atmos.washington.edu/images/webcam0/movies/20090226.mov" target="_top">UW Rooftop Camera Movie 02/26</a>


<h2><a name="Severe_convection_initiation_alo"></a> Severe convection initiation along a cold front in Kansas/Missouri, Thursday 26th February </h2>

<li><a href="http://nmq.ou.edu/cgi-bin/loop_M3DD.cgi?2+0+2009+2+27+18+2009+2+27+6+0+10+10+24" target="_top">NWS Mosaic, 24 hours from noon 02/26, from _nmq.ou.edu_</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/EAX.N0R.0902262318.912x684.none..348_an.gif" target="_top">Kansas City radar 02/26 3-6 pm local</a>

<li><a href="http://www.atmos.washington.edu/images/difax/difax_max/200902270000.gif" target="_top">Maximum surface temperatures, 26th February</a>

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?h500_vort+/-168//" target="_top">500 hPa heights and absolute vorticity</a>

<li><a href="http://www.spc.noaa.gov/climo/reports/090226_rpts.html" target="_top">NWS Severe weather reports</a>



<h2><a name="A_land_of_contrasts_Friday_Satur"></a> A land of contrasts, Friday/Saturday/Sunday </h2>


Surface maximum daily temperatures:

<li><a href="http://www.atmos.washington.edu/images/difax/difax_max/200902280000.gif" target="_top">Friday 27th</a>

<li><a href="http://www.atmos.washington.edu/images/difax/difax_max/200903010000.gif" target="_top">Sat 28th</a>

<li><a href="http://www.atmos.washington.edu/images/difax/difax_max/200903020000.gif" target="_top">Sun 29th</a>

<li><a href="http://www.atmos.washington.edu/images/vis-e/200903011545.gif" target="_top">Cold air outbreak over entire gulf of Mexico</a>

<li><a href="http://rapidfire.sci.gsfc.nasa.gov/realtime/single.php?2009060/crefl2_143.A2009060192000-2009060192500.1km.jpg" target="_top">MODIS Aqua, 13:30 local, March 1st</a>

<h2><a name="Snowstorm_in_the_eastern_US"></a> Snowstorm in the eastern US </h2>

<li><a href="http://nmq.ou.edu/cgi-bin/loop_M3DD.cgi?2+0+2009+3+2+6+2009+3+2+22+0+10+10+12" target="_top">Mosaic, 12 hours to 6Z on Feb 2nd</a>

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?h500_slp+/-168//" target="_top">500 hPa heights and SLP</a>

<li><a href="http://www.nytimes.com/slideshow/2009/03/02/us/20090302_SNOW_USER_2.html" target="_top">Some photos</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/rad_KDOX_0500.gif" target="_top">Gravity wave in the radar</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/DOX.N0R.0903020500.912x684.none..348_an.gif" target="_top">Dover (DOX) NWS radar loop 3-5 UTC</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/DOX.N0R.0903020714.912x684.none..348_an.gif" target="_top">Dover (DOX) NWS radar loop 5-7 UTC</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/OKX.N0R.0903020912.912x684.none..348_an.gif" target="_top">Brookhaven (OKX) NWS radar loop 7-9 UTC</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/image001.jpg" target="_top">Time series at Chesapeake Bay Bridge Tunnel</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/image002.jpg" target="_top">Cape Henry Light Vessel, Virginia, CMAN station (offshore) &#8211; hourly data</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/image004.jpg" target="_top">Lewes, Delaware. Sustained 23 gusting 28 ms-1 winds. Pressure fall of -8.1mb/30minutes, which includes -4mb/6 minutes</a>

<li><a href="http://www.atmos.washington.edu/%7Erobwood/teaching/Wx/image005.jpg" target="_top">Sea level data, Atlantic City, NJ</a>

<li><a href="http://weather.uwyo.edu/cgi-bin/sounding?region=naconf&amp;TYPE=GIF%3ASKEWT&amp;YEAR=2009&amp;MONTH=03&amp;FROM=0200&amp;TO=0212&amp;STNM=72402" target="_top">Wallops soundings</a>

<li><a href="http://vortex.plymouth.edu/%7Eehoffman/mar2009igw/KWAL_mfire310230_24_09_GMT.gif" target="_top">Wallops Island met series</a>

<li><a href="http://cheget.msrc.sunysb.edu/mm5rt_data/2009030200/images_d2/700w.03.0000.gif" target="_top">700 hPa vertical velocity, WRF East</a>



<h2><a name="The_Forecast"></a> The Forecast </h2>

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?gfs_pcpn_slp_thkn+///6" target="_top">GFS, SLP and Precip</a>

<li><a href="http://www.atmos.washington.edu/%7Eovens/loops/wxloop.cgi?mm5d2_x_wa_snow24+///3" target="_top">MM5 snow forecast</a>



##
## A SAMPLE LINK:
##<LI> <A HREF='http://wwwt.emc.ncep.noaa.gov/mmb/SREF/SREF.html'>NCEP Short Range Ensemble Page</A>

## A SAMPLE LOOP. For each loop, create a subdirectory of 
##  /home/disk/stormy/atmos/data/wxdisc/YYYYMMDD (where YYYYMMDD is the 
##  date of your discussion) for all images to be looped. 
##<LI> <A HREF='/~ovens/loops/wxloop.cgi?/home/disk/stormy/atmos/data/wxdisc/sample/2003123012fcsts+all'>Long Range Forecasts of Snow Storm</A> 

</ul>

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