Thursday, June 3, 2010

When will the rain end??

Tired of the rain yet? Chances are your ready for summer, it's June for crying out loud! It has been cold, it has been wet, and it has not been our usual June.
Yesterday, the entire state was hammered with rain. Records fell at almost every major station. Here is a look at the setup to yesterday's soaking rain.The big batch of moisture came from the tropical Philippines. With the system originating from such a warm source, it was able to hold much more in terms of moisture. Thus, many locations got drenched. Take a look at some of the numbers that fell.

Other records that were set were in Pendleton where they saw .84" of rain. That beat their previous record of .65" in 1971. Lebanon saw 1.27 inches of rain in 24 hours. Otter Rock, OR got just about that amount (1.26") in only half the time. Needless to say, this storm held some serious precipitation. To put this June in perspective: our .65" of rain at the PDX airport yesterday does not crack the top 10 wettest June days on record. So it HAS been worse, people. However, look at the big picture at it tells us something different. Only three days into June and our measurable precipitation at the PDX airport stands at .89". The monthly average for June is 1.59" of rain. Do the math and you'll find out that we are over halfway to the monthly average...only three days in!!
So, there is the overview on the precipitation end. How about the cool temperatures we have had this spring? May 2010 was the coldest in the last 11 years, and the third wettest on record. So far this year, we have hit 70 only a handful of times and we have yet to top the 80 degree mark. On average, PDX gets its first 80 degree day on May 8th. This year on May 8th, the temp got to 69 degrees. The earliest PDX has ever hit 80 degrees was on, get this...March 16th, 1947! And on the opposite end of the spectrum, the latest the airport has ever recorded its first 80 degree day was June 9th, 1991. So we are in danger of setting another record.
How are things looking in the near future?

Here is the latest model for Friday morning, showing a surface low pressure system making landfall on the north Washington coast. It will bring more rain and some breezy conditions to the Northwest again, but not as intense as Wednesday's soaker. Look up to the Gulf of Alaska and you can see another low pressure system, that is the main system that brought all the rain into the Northwest yesterday and will again feed the system for tomorrow. After tomorrow though, things begin to look up! Several partly to mostly sunny days with only a slight chance of rain on Sunday makes the 7-day forecast look much more like June. However, there appears to be no hope for an 80 degree day by the 9th, so look for another record to fall.

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