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Seattle, WA

Seattle, WA. January 31, 2011. Where is Seattle?. Lots of terrain and orography. Satellite. http://www.atmos.washington.edu/~ovens/loops/ Some high clouds in the area, but they are to the north. There appears to be a ridge in the area for now. Radar.

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Seattle, WA

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  1. Seattle, WA January 31, 2011

  2. Where is Seattle?

  3. Lots of terrain and orography

  4. Satellite http://www.atmos.washington.edu/~ovens/loops/ Some high clouds in the area, but they are to the north. There appears to be a ridge in the area for now.

  5. Radar • http://www.weatheroffice.gc.ca/radar/index_e.html?id=XSI • http://www.rap.ucar.edu/weather/radar/displayRad.php?icao=KATX&prod=bref1&bkgr=black&endDate=20110131&endTime=-1&duration=0 Not much on radar except for areas of heavy precip? Or is that something else? Hmm…

  6. METARS http://www.rap.ucar.edu/weather/surface/index.php?metarIds=KSEA&hoursStr=past+60+hours&std_trans=translated&num_metars=number&submit_metars=Retrieve ZzZzZzZz Boring

  7. Models • 500 mb height and vorticity: • http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/nam/18/index_500_m_loop.shtml • 700 mb moisture: • http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/nam/18/index_700_m_loop.shtml • MSLP, Precip, and 850mb T: • http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/nam/18/index_pcp_m_loop.shtml • SFC T: • http://www.rap.ucar.edu/weather/model/displayMod.php?var=gfs_sfc_temp&loop=1

  8. Long wave ridge pattern • Strong High pressure to the south • Stable • Subsidence • Temperature gradient near the coast

  9. MOS http://www.nws.noaa.gov/cgi-bin/mos/getall.pl?sta=KSEA The MOS values are pretty similar to each other, so there is good agreement between models.

  10. High 44 • North winds will be light • Clouds look to be lingering • Low 31 • Clouds hanging around overnight • Light winds so more cooling

  11. Winds 7 • Winds might pick up if there is some clearing • Precip 0 • Longwave ridge patter • High pressure

  12. Forecast Comparison • Me • 44 31 7 0 • NWS • 44 32 light 0 ter@hawaii.edu HIG 370

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