WeatherWatcher: Weekly Report: Who turned on summer?

Tuesday, May 7, 2013

  • 7-day outlook
  • Summer is starting
  • Record warmth
  • Last week's data
  • High temperatures daily since May 1st.
7-Day Outlook: Tuesday-Friday will have morning clouds burning off to afternoon sunny skies. Our high temperatures are going to cool back down into the low to mid 70's with the lows hovering around the 50ºF mark. Our off-shore flow that has been giving us our low to mid 80's high temps is changing over to a weak on-shore flow. In other words our Pacific Ocean air conditioning is turning back on. Saturday will be a transition day, with some clouds from an approaching weak storm moving in, still looks like it's going to remain dry and on the warmer side of upper 60's or low 70's. Sunday most of the models are agreeing that we should have some rain back in the area, with a little cooler air in place as well. Still seasonal however with temperatures running around the mid 60's for a high. Longer range seems to suggest we might return to our sunny weather after Sunday, but that's still quite a ways out.

Summer is starting almost as if someone just flipped a switch from "winter" to "summer". The El Niño Southern Oscillation is currently in a neutral mode. This means weather around here is likely to be seasonal, not wetter or drier than normal. I believe we may be heading into a pleasant late spring and summer season with little storms, not likely to have any more flooding rains until next fall. Although I also suspect we may have a couple of days ahead of us within the next few months where a thunderstorm may bubble up. Temperatures should be relatively normal, we might have some hot days in the upper 90's, especially in July. I'll have more on this in a seasonal outlook report.

Record warmth: Seattle Tacoma International Airport weather station (SEATAC) has broken the record high temperature for May 6th today. The high temperature today at SEATAC was 87ºF, shattering the previous record of 79ºF set back in 1957. The high in Shoreline today was 85ºF, shows that our weather does vary from city to city here in the Puget Sound.

Last week's data:
High temperature: 69.7ºF (Friday)
Low temperature: 33.1ºF (Wednesday)
Rainiest day: 0.16 inches (Tuesday)
Total rainfall: 0.40 inches
Warmest day: 56.1ºF (Friday)
Coldest day: 43.3ºF (Tuesday)
Average temperature: 49.8ºF

High temperatures daily since May 1st:
Wednesday 1st: 63.0ºF
Thursday 2nd: 61.2ºF
Friday 3rd: 69.7ºF
Saturday 4th: 76.7ºF
Sunday 5th: 81.3ºF
Monday 6th: 84.9ºF

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, starting Saturday morning at midnight. All weather data unless otherwise noted is sourced from Carl's Shoreline Weather.

For weather related updates or storm warnings, check out my weather station web page or follow me on Twitter: @SWeatherWatcher


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