|~2" snow in Auburn Township - May 9, 2020|
Historically this is what May should look like.
There have 19 years since 1950 with at minimum snow flurries in May and only a handful of years with measurable snow. I remember May 15, 2016 because I was at a baseball tournament coaching. It was a Sunday and there was snow on the ground at 7am!
Earlier last week, the models were showing a strong surge of cold for Friday/Saturday, May 8-9th. Based upon both the GFS and EURO long range data for Detroit and Pittsburgh--IF verified--this would tie or possibly break the all-time upper level sounding data record for 850mB (5000 feet) cold !set back in 1966 While this isn't where we work and live, this level is critical for determine lake effect snow and surface temperatures.
This is what the 850 mB temperatures read at 8am Saturday morning, May 9th:
Temperatures at 500mB (18,000 feet) were also extremely cold for early May.
Radar loop Saturday morning showed definitive areas of lake effect
|Highest amount: Auburn Township - ~2"|
|Northern Ohio snow reports - courtesy NWS Cleveland|
|Northeast snow Saturday May 9, 2020|
Core of the cold over the Ohio Valley, Great Lakes and New England Saturday morning.
Wind chill at NWS Cleveland dropped to 20 at 7:51am Saturday May 9th
Has this happened before? Here are two composite years: 1986 and 1966
|Vermilion - May 10, 2020|
|Chardon - ~2" of snow - May 11, 2020|
|Hambden Township - May 11, 2020|
|Mayfield Heights - May 11, 2020|
* New record snowfall this late in the season at NWS Cleveland: 0.2" on May 11th which breaks old record on 5/10/1907
* 5/11/2020 high of 45 was also the COLDEST high temperature in the last 100 years this late in the season (tied 5/11/1996)
We still haven't reach 80 degrees this year. A warm up is coming! (regression to the average which is now nearing 70)
Potential high temperatures Thursday, May 14th
Here are the years when we touched 80 or better after May 15th (since the 1930s). The list is short:
Lake Erie Sunset 5/11/2020