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TheClimateChanger

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  1. TheClimateChanger
    Pick any two sites that are nearby are you'll see the actual difference is greater than 4F per 1000 feet. Here's 3.4F difference on 800' elevation gain. You say you need 1,000 feet of gain for this change. Actually, you claimed even less in a humid climate like Pennsylvania. Cambria County Airport (2274') Altoona Airport (1467')
  2. TheClimateChanger
    Near surface lapse rate is greater than open air lapse rate, due to downsloping effects. Only one is relevant to this discussion.
  3. TheClimateChanger
    Going to be a close one today, either 89 or 90F so far. With the clouds rolling in, might be done for the day. I did see the current temperature was 31.7C (89.1F), which is also what the 6-hourly high was at 1:51 pm. Needs to reach [or have reached] 32.0C (89.6F) to go in the books as 90F.
  4. TheClimateChanger
    NCEI reports August 2022 was 3.3F warmer than August 1975 in the Southeastern Piedmont region of Pennsylvania. Is this reasonable? One way of looking at this would be to compare stations for which data is available in both periods - unfortunately, I see only two such stations - Philadelphia International Airport and Phoenixville. Looking at these two, PHL was 4.7F warmer in August 2022 relative to August 1975. Phoenixville was 4.4F warmer, albeit with some missing data in 2022. Additionally, the Franklin Institute site (2022) is very near to the 23rd & Market site (1975) in Philadelphia. It was 4.3F warmer in 2022 versus 1975 at those two sites. Overall, if anything, the NCEI figures look cooler than the comparative data might suggest. This looks like more hullabaloo over nothing.
  5. TheClimateChanger
    This is actually surprisingly easy to debunk. Chester County is part of what is known as the Southeastern Piedmont climatological region of Pennsylvania. In August 1975, the mean of 19 stations was 74.6F. In August 2022, the mean of 21 stations was 77.2F. If you pull up the current divisional data from NCEI, you'll see August 1975 is 73.0F. Looks pretty damning - that's a drop of 1.6F over what was reported. But then turn to August 2022, the value is 76.3F, or 0.9F cooler than reported. It's important to note that the values reported in the publication are simply the arithmetic mean of the station data, while the means shown on NCEI are areal averages factoring in topography/elevation etc. As long as processed in the same manner, the suite of stations can change and still produce a comparable value. In any event, there is no systematic warming of recent data like these guys frequently show - the opposite, in fact. You're welcome to do this with any time period, any month, any region since they started using the current climatological divisions and the result. That's why it's important, as @ChescoWx always says, to look at the raw data!
  6. TheClimateChanger
    Not too surprised the "ROU" is cooler than Harrisburg International Airport. One is at ~300' on the Susquehanna River, and the other is 750-800 feet, with some residential areas on the neighboring hills at 1,000 to 1,200 feet. Not sure how much of that is attributable to an urban heat island effect. That level of elevation gain is sufficient for daytime maxima to be around 3F cooler in town, and upwards of 5F cooler in the hills, relative to the airport.
  7. TheClimateChanger
    Some of this data is wrong for the record-breaking winter of 1935-1936. While many of the lowest hourly dewpoints on record at Des Moines did occur during that winter (including the all-time low of -40F on January 29, 1936 & February 14, 1936), it was not lower than -60F with those huge daily swings shown.
  8. TheClimateChanger
    Also has daily minimum and maximum dewpoints, which can be downloaded as a .csv file.
  9. TheClimateChanger
    IEM [Iowa Environmental Mesonet] is the easiest for monthly data, but it generally goes back no further than the 1930s or 1940s [or the earliest date on which a newer station opened].
  10. TheClimateChanger
    Here is 1930. Let's just say I'm a little skeptical of this temperature distribution. But man, 50s for a mean low in July isn't too shabby. You wouldn't need air conditioning at night, because you can just open the window and use a fan. In that regard, I guess I disagree with most of you. I do not believe only high temperatures matter in judging summer warmth. In fact, I would argue low temperatures and humidity are the two most important factors when it comes to cooling demand. As a child, we didn't have air conditioning and it really wasn't needed. That's not the case anymore.
  11. TheClimateChanger
    Hmmm? Doesn't strike me as super hot compared to recent decades. There were some warm years in the mid to late 1930s, but nothing like recent years. 1920-1939 2000-2024 And if you're really curious. The historic data [pre-1968] comes from the cooperative weather observation at the Lancaster City WWTP, not at Millersville University at all. It obviously wouldn't benefit from the pristine siting and monitoring of MU's meterology department, and isn't directly comparable. Moreover, the WWTP site is about 250' versus 380' at MU. And the extreme thermometers were reset at 5 pm daily in the historic observations, versus midnight to midnight at MU. Factoring these in, the change in elevation would tend to make Lancaster about 0.4-0.5F warmer than Millersville [average drop is about 4F / 1,000 feet]. The TOBs bias adds about 1F to the reported mean temperature - that is, resetting the thermometer at 5 pm versus midnight adds about 1F to the temperature as a result of the 5 pm temperature being warmer than the actual high the following day [but attributed as the high for that day] and the loss of midnight low temperatures, which happen fairly frequently in the summertime. Despite these warming advantages, all recent years at Millersville are warmer than the historic observations at Lancaster.
  12. TheClimateChanger
    Looks like some very hot weather in New Orleans in the wake of Tropical Storm Debby. Current forecast would suggest 3 straight days of around 100F heat. I would suggest the all-time record could be at jeopardy, but that appears unlike due to last summer reaching 105F. Still only 14 years since 1946 have reached 100 or better at New Orleans. And this is quite shocking. I didn't see much in the news about this. But last summer looks like it was totally insane there. From 1946 to 2022, there were a total of 20 days at or above 100F. Last summer alone had 17!
  13. TheClimateChanger
    I can assure you there will NEVER be sea ice off the south coast of England so long as humankind reigns.
  14. TheClimateChanger
    The CNN article implies sea ice to the southern coast of England. That's a load of rubbish.
  15. TheClimateChanger
    There is no magical thermostat on earth. It will continue warming regardless of what the AMOC does, probably even speed up. Parts of Europe might see a modest cooling. No ice age. No little ice age. That's a bunch of nonsense. Sorry to rain on everyone's fantasies. The Gulf Stream Myth (columbia.edu) The Source of Europe's Mild Climate | American Scientist
  16. TheClimateChanger
    Burn scar? Was that supposed to be in there?
  17. TheClimateChanger
    The 4.19" of rain since midnight (eastern standard time) currently ranks this as the 8th wettest day on record in the Akron area since 1896. Radar shows more heavy showers and thunderstorms slowly pushing into the area, so additional rainfall is likely.
  18. TheClimateChanger
    So far, the rain today has stayed just to my north, other than maybe a few sprinkles. Been hearing thunder for about an hour. Not far outside of our area, Akron-Canton Airport had 4.07" of rain in 1 hour and 25 minutes, between 10:20 and 11:50 am. So these storms are very capable of torrential downpours and flash flooding.
  19. TheClimateChanger
    In 1 hour & 25 minutes [10:25 - 11:50 am], 4.07" of rain was observed at Akron-Canton Regional Airport in Ohio. Storm total up to 4.18" as of 12:30 pm.
  20. TheClimateChanger
    Have we gotten an all-time record eighth day at BWI yet?
  21. TheClimateChanger
    Yesterday's 90F reading at Bradford Regional Airport was the sixth so far this year, leaving 2024 just 2 shy of the calendar year record set in 1988. Still 152 days to tack on some more. 3 of the last 5 years have reached 90F at least once, which might not sound too impressive. But historically, the vast majority of years have not had any days at or above 90F.
  22. TheClimateChanger
    Humidex has probably been off the chart the last few days with these dewpoints as high as 77F/25C. Toronto Pearson International Airport Weather History
  23. TheClimateChanger
    Plenty of high heat in that region this summer. Today was the 14th day above 86F/30C at Buffalo (the 13 indicated below is missing today's high of 88F). Only 7 years since 1873 had more through August 1. I guess it's just somehow missed Pearson International Airport. The mean temperature of 72.2F at Buffalo is 4th highest on record for the first two months of meteorological summer since records began in 1873.
  24. TheClimateChanger
    Looks like another 91F high today.
  25. TheClimateChanger
    Another thing to keep in mind is how they define normals. They keep jacking the so-called "normal" value up and up, especially in the summertime. Really the should be called climatological abnormals. In looking through the old records, I noticed the July normal mean temperature has been raised a full 3.6F (2.0C) for both Erie, Pennsylvania and Toledo, Ohio, since the 1980s. For these locations, the NWS now says a normal August is about 2F warmer than a normal July 35 years ago, and a normal June is nearly as warm as a normal July 35 years. At what point are they going to start telling us its normal for September to be warmer than a normal July in the late 20th century? Just took a look at LaGuardia, and it's not up quite as much, but still +2.8F from the 1980s. Curiously, the July mean at Newark is only up +1.4F since the 1980s. It's an odd dynamic. A normal July at EWR was considered to be 0.4F warmer than a normal July at LGA in the 1980s. Today, a normal July at EWR is considered to be 1.1F cooler than a normal July at LGA. But if you look at recent years, it looks like EWR is again the warm spot among the two in the month of July. Not sure why they would bounce around like that, but I would expect EWR's normal to be increased precipitously in another 7 years.
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