WeatherWatcher: Weekly Weather Feb 19 - 25, 2011

Sunday, February 27, 2011

Carl's Shoreline Weather Station

Warmest and coldest days are based on average temperature of the entire day, starting at midnight. All other averages are based on the whole week.

  • Warmest day: 36.5ºF (Saturday)
  • Coldest day: 24ºF (Friday)
  • Rainiest day: 0.08 inches (Monday)
  • Average temperature: 32.2ºF
  • High temperature: 44.4ºF (Monday)
  • Low temperature: 20.8ºF (Friday)

Total rainfall: 0.16 inches (This week’s rainfall has actually been caused by melting snow in the rain gauge. The rest of the snow fall has actually evaporated, not melted on Thursday night and Friday due to the dry arctic air that moved in.)

  • High humidity: 100%
  • Low humidity: 33% (Sunday)
  • Average humidity: 81%
  • High pressure: 29.619 inches
  • Low pressure: 29.205 inches
  • Average pressure: 29.4 inches

Weather highlights this week:
  • This was a very cold week! Notice our average temperature was below 40ºF this week.
  • The only day that was not below freezing for a low temperature was Saturday.
  • Thursday and Friday averaged below freezing. Thursday barely broke the freezing mark with a high of 32.1ºF.
  • Monday night we had a wintery mix, which eventually turned to snow and left a dusting on the ground.
  • Wednesday and Thursday: A winter storm warning was issued for Wednesday (the second winter storm warning issued for the 2010/2011 winter season,) but the storm basically missed Shoreline and Lake Forest Park. We had intermittent snow showers throughout the two days, each left about a trace to half an inch of snow. Thursday had a heavy enough shower in the evening to accumulate 2 inches of snow. So over the two days I’m calling it a total of 4 inches of snow. The trace amounts kept melting away as the ground was not quite below freezing yet, however most of the 2 inches Thursday night actually evaporated on Friday, due to the cold and very dry air.

Weather for the coming week:
  • Sunday may warm up a little bit for a melt off of the little frozen stuff we have left.
  • Temperatures all week are expected to struggle making it past the 40ºF mark. With the exception of one or two warm fronts that may pass through. Snow levels will remain between 1000 feet and sea level, so we may have continued interesting weather this week off and on as well. Probably another busy week for me! Stay tuned for future weather advisories, watches or warnings as I suspect we may have a couple more this week.


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