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View Diary: Pool of chilly air will send midsummer temps plunging in Great Lakes region w a 'Polar Vortex' (38 comments)

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  •  Holy.. (21+ / 0-)

    I refreshed the extened @ noaa & boy does it look nice! By next Mon. night, 52! FiveTwo.. in JULY?! Yowza...

    Not "typical" summer in WI but... I'll take it. They'll still raise E rates though... to recoup losses due to mild summer weather.

    Next Thurs.. it just says "calm wind.." Should we worry, more?

    Do historicals show low temps like this?

    •  Highs Never Drop Below 70's Here in Cleveland Area (10+ / 0-)

      nearby, and those temps have happened often in summers here. I grew up racing sailboats on Lake Erie but I was looking at typical " H and L " weather maps with fronts not jet stream and air mass maps so I don't know how to translate the predictions to the kinds of weather I was employing to drive my boat.

      I will say that this summer I've seen more familiar weather patterns than I have teh past handful of summers, although some distinctive storm patterns of my youth remain AWOL. I suspect the looming vortex is part of that phenomenon.

      We are called to speak for the weak, for the voiceless, for victims of our nation and for those it calls enemy.... --ML King "Beyond Vietnam"

      by Gooserock on Thu Jul 10, 2014 at 03:58:10 PM PDT

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      •  Those Lakes.. (7+ / 0-)

        maintain their own special climate zone. Interesting stuff.

        Do you get much of the humidity?

        I can imagine it is difficult to see a historical pattern. But it is interesting if the vortex phenoma(sp) occured in recorded (limited) past. We are still scientifically data "young" in this regard. Just the L & the H's...

        But.. now we have the tools to see & predict these large occurances.. totally awesome & the future sailors can really plan some nice outings.

        •  Lake Erie (2+ / 0-)
          Recommended by:
          Rashaverak, FarWestGirl

          is the shallowest of the Great Lakes so the water temperature varies the most. It is the only Great Lake that can freeze over entirely, and during the summer the water can exceed 80 degrees F in the western basin near the islands.

          Do you get much of the humidity?
          The humidity from the lake is not very noticeable during the summer since any local effect can easily be overwhelmed by the hot moist air that can stream north from the Gulf of Mexico.

          However, I do recall Memorial Day weekend on 1988. The high temp was 90 F, portending a year with the greatest number of days 90 F and above, 36 for the year which can be compared to an average of 11 days per year.

          We sailed out of Fairport Harbor, a village about 30 miles east of Cleveland. The Lake's water temperature was still in the 50's so as we sailed out through the breakwall the temperature we felt fell from 90 F to the upper 50's in just less than 200 feet of travel on the water. It was time to don our sweaters and windbreakers.

          The reverse happened as we sailed back into port. Our fingers were stiff from the raw wind, but the transition was quick, just a matter of 10 to 20 seconds and we were back in 90 heat! It was like walking into and back out of a large industrial freezer!

          The water vapor escaping from the Great Lakes during winter is a different story. A good portion of most of the lakes remain open through most of the winter. Lake Erie will remain open until late December if it has been a cold winter, or through the entire season if it has been a mild winter.                                                                                                          
          When a cold blast of Arctic air rushes down from the Arctic Circle and flows across the Great Lakes, the air is warmed slightly which allows it to pick up and retain additional moisture. When traveling across Lake Erie during autumn, the air is warmed further and the cold air mass picks up a tremendous amount of water.

          Once the cold air reaches the south/southwest  coast, the saturated air is lifted by the terrain of hills and small mountains in Ohio, Pennsylvania and New York. This causes rapid cooling of the saturated air and the excess moisture is released usually in what has been called a snowbelt. There are a number of ski resorts located in the snowbelts of the Great Lakes.

          Alcohol preserves everything ... except secrets.

          by august88 on Thu Jul 10, 2014 at 11:21:51 PM PDT

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    •  I'm kind of envious. The best we have to look (3+ / 0-)

      forward to for the foreseeable future is a drop into the low to mid 90s, with lows overnight in the low 70s. :(

      "On their backs were vermiculate patterns that were maps of the world in its becoming. Maps...of a thing which could not be put back. Not be made right again."

      by middleagedhousewife on Thu Jul 10, 2014 at 05:06:16 PM PDT

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    •  I love how it keeps down (2+ / 0-)
      Recommended by:
      middleagedhousewife, Rashaverak

      the mosquito aggressiveness.

      you don't believe in evolution, you understand it. you believe in the FSM.

      by Mathazar on Thu Jul 10, 2014 at 08:44:48 PM PDT

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