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TheClimateChanger

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Posts posted by TheClimateChanger

  1. 3 minutes ago, TheClimateChanger said:

    Looking at the Michigan state record high for the month of February...

    Isolated data pre-1888, although the data we do have covers some of the warmer southern climes.

    February 27, 1867: 64F at Lansing [incredibly the low was 14F] --> possibly erroneous, 1930 publication indicates high of 66F on 2/22 was 4F warmer than any other February day of record in East Lansing dating to 1863 [original data unavailable]

    February 19, 1884: 64F at Detroit [tied]

    February 4, 1890: 66F at Benton Harbor

    February 21, 1930: 69F at Monroe

    February 26, 1944: 70F at Monroe and Wayne

    Not sure thereafter. Per climatologist Maximiliano Herrera, the state record prior to yesterday was 72F, although I'm not sure where or when that occurred. I thought maybe 2017, but the maximum was 70F at seven different stations on the 24th.

    They stopped including these nifty little tables in the monthly and annual reviews, making it a bit difficult to identify state records without the source data.

    image.thumb.png.a604cab1306d6edd3f56a0554dbe56a6.png

    Ah, here it is. I noticed DTW reached 70 in February 1999, so I figured that was it. Confirmed.

    February 11, 1999: 72F, at Battle Creek

    February 12, 1999: 72F, at Three Rivers and Holland

    • Like 1
  2. Looking at the Michigan state record high for the month of February...

    Isolated data pre-1888, although the data we do have covers some of the warmer southern climes.

    February 27, 1867: 64F at Lansing [incredibly the low was 14F] --> possibly erroneous, 1930 publication indicates high of 66F on 2/22 was 4F warmer than any other February day of record in East Lansing dating to 1863 [original data unavailable]

    February 19, 1884: 64F at Detroit [tied]

    February 4, 1890: 66F at Benton Harbor

    February 21, 1930: 69F at Monroe

    February 26, 1944: 70F at Monroe and Wayne

    Not sure thereafter. Per climatologist Maximiliano Herrera, the state record prior to yesterday was 72F, although I'm not sure where or when that occurred. I thought maybe 2017, but the maximum was 70F at seven different stations on the 24th.

    They stopped including these nifty little tables in the monthly and annual reviews, making it a bit difficult to identify state records without the source data.

    image.thumb.png.a604cab1306d6edd3f56a0554dbe56a6.png

  3. 6 hours ago, LibertyBell said:

    Oh you're going by average temperature, which includes the minimum.  For summer heat, I go by number of 90 degree days and number of 100 degree days, not average temperatures.

    When the min is high it means it's usually either cloudy or very humid or both and when it's more humid during the day and of course when it's cloudy, the temperature rises more slowly.

     

    Mean temperature is the superior measure IMO. Number of 90 and 100 degree days can be influenced by drought. They claim July 1936 is hottest month on record in U.S., although I'm a little skeptical of that. It doesn't seem very hot compared to recent Julys in the Great Lakes or Northeast. In fact, outside of a 7-day period, the other 24 days at most locations would be bona fide summer of yesteryear territory.

    But even in Des Moines, where it's hottest on record. If you look at the humidity levels that summer [lowest on record], the heat indices would have been around the air temperature or lower most days. So a lot of those days - 106F, 108F - you have a 103F or 105F heat index. Yet Des Moines gets dewpoints in the upper 70s and 80s every year now, with heat indices into the 110s [even 120F]. So I would argue the combination of heat and humidity that we regularly see today is more deadly than even the worst heat waves of the Dust Bowl. Most of the country would be uninhabitable today without AC. This isn't reflected in the data, particularly if you only looked at the temperatures.

    • Like 1
  4. 1 minute ago, LibertyBell said:

    It could be, but I've also noticed the temperatures rise a lot more quickly when there's a drought.  The last notable drought I remember was in 2002, which was a very hot summer, starting with that big three day heatwave in April, the grass was yellow to brown all summer.

     

    Maybe, I'm skeptical of some of those readings. If you look at Bradford, in rural Pennsylvania, surrounded by the Allegheny National Forest [so no UHI impacts], pretty much every recent summer is the hottest on record. So I don't know why there would be such a disconnect between the rural and heavily populated parts of the northeast. Wouldn't the UHI effect argue for the exact opposite impact? It's almost like the greenhouse effect ameliorates some of the UHI effect by making radiational cooling less effective in more remote areas.

    image.png.f2749a04a7bc4c9ecfdf1481e189e69f.png

     

  5. 3 minutes ago, LibertyBell said:

    1993 was eventually superseded by 2010 which became our new hottest summer on record, but we haven't had as many 90 degree days since then-- although we did have a peak heat hotter in 2011.  I don't see that being broken any time soon because we simply get too much rain in the summer now to match that kind of heat.  We need a drought here to get over 100.

     

    Yeah, the bias on the HO-83 was primarily daytime only. I think there were some hot summers in that era, no doubt. But the first order station data for years like 1987, 1988, 1991, 1993, 1994 & 1995 is probably a couple degrees too high for daily maxima, relative to the current readings with the HO-1088 ASOS hygrothermometer [which was reconfigured to address the issues with the HO-83].

    I mean it's probably too warm even in the cold, volcanic summer of 1992. I'm just pointing out the multiple warmer years from that era.

    • Like 1
  6. 1 minute ago, LibertyBell said:

    Do you remember the summer of 1993, it was our hottest summer on record up to that point.  We all had numerous days above 100+, JFK had 2 in a row from what I remember, NYC had 3 in a row and EWR had 5 in a row.  The 90s were the decade that had our most 90 degree days and also our most 100 degree days-- the summers of 1991, 1993, 1995 and 1999 were all extremely hot.

    Not as hot as today. Take those readings with a grain of salt [except for 1999]. Maximum temperatures at first order stations averaged about 0.5C too warm, and from 1 to as much as 3C on sunny days with light winds - i.e., typical summertime weather.

    The HO-83 Hygro- thermometer « Climate Audit

    image.thumb.png.0627314b69442e57a502368680374307.png

    image.thumb.png.d141df859845784448aedad837c68a27.png

  7. 8 hours ago, LibertyBell said:

    But those places are always hot lol-- in 1993 Newark had 9 days of 100 degrees or higher (including 5 days in a row!)-- has that ever been matched?

    I think we can finally call it  a new climate when the coast gets temperatures every year over 100 degrees-- do you think we'll have that by 2050? I want JFK to get at least one high every year over 100 degrees.

     

     

    I think if we measured temperatures the same way we used to, we would have 100F+ temperatures every summer. They had to shut down the original Baltimore station because it was so hot. The same station that is the official records from Baltimore before BWI opened. Somehow the deniers argue this shows the warming is fake. Obviously, it actually shows how ridiculous the warming has been when properly observed temperatures today are now exceeding the past ones taken in an absurdly warmed local microclimate on a rooftop. What level of cognitive dissonance is that?

    image.png.09386fe3df7ace03a1cbb9eef958edd2.png

    Source: How not to measure temperature, part 48. NOAA cites errors with Baltimore's Rooftop USHCN Station – Watts Up With That?

  8. 7 hours ago, LibertyBell said:

    But those places are always hot lol-- in 1993 Newark had 9 days of 100 degrees or higher (including 5 days in a row!)-- has that ever been matched?

    I think we can finally call it  a new climate when the coast gets temperatures every year over 100 degrees-- do you think we'll have that by 2050? I want JFK to get at least one high every year over 100 degrees.

     

     

    What a joke - why do they allow obviously bogus readings to stay in the record books? I'm guessing that was the HO-83? Should at least have an asterisk designating its questionable nature.

  9. 66 in Houghton Lake, Michigan, breaks the prior monthly record of 64F (1930) & seasonal record of 64F (2/1930 & 12/2001).

    The temperature at Sault Ste. Marie, Michigan has ticked up to 50F since that last observation. That value ties the February monthly high of 50F, set on February 16, 1921. Nowhere near the seasonal record though. Due to the lake effect, the warmest temperatures occur in early December.

    65F at Green Bay ties the monthly record from 2/22/2017 & ties the seasonal record from 2/22/2017 & 12/16/2021. Some nearby airports registering 70F.

  10. 46 minutes ago, TheClimateChanger said:

    The current temperature at both Flint and Saginaw is 69F, setting new monthly records and all-time winter seasonal high temperatures for both sites.

    Up to 72F at both sites, as well as DTW. City Airport in Detroit is up to 73F.  Prior to today, the earliest 70+F reading at Saginaw and Flint was March 7, 2000 & March 7, 1987.

     

  11. 15 minutes ago, beavis1729 said:

    Prior to yesterday (records going back to 1893), Rockford's record high temp in DJF was 70F on 2/22/2017 and 2/25/2000. 

    They hit 73F yesterday, and are already up to 73F at noon CST today.  Two days in a row of all-time record high temps for met winter, going back 130 years.

    This is like the winter equivalent of March 2012 or July 1934.

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