Temp changes

General Discussions: ASK John: Temp changes

By scott_b on Wednesday, January 30, 2008 - 03:17 pm: Edit Post

John,

Yesterday in the northern burbs of Chicago we had a huge swing in temps. According to our weather station at 4:00pm it was 48.5 deg at 4:30am -4.5deg and 30+ mph winds (-47.5 wind chill). Question is in the grand scheme of things is a 50+ deg temp change in 12 hours a big deal, possibly record breaking or not such a major event?


By 1000 on Wednesday, January 30, 2008 - 04:09 pm: Edit Post

I am not answering for John, but I think I remember that the largest swing in a 24 hour period is 100 degrees somewhere in Montana. I think it was 60 to -40. But again that is in 24 hours, not 12. I am sure John will chime in with further iofo.


By gobuckeyes on Wednesday, January 30, 2008 - 08:53 pm: Edit Post

John,
along the same line of Scot b's question, do wild temp swings always result in the high winds we experienced last evening?
-Scott


By average_joe on Wednesday, January 30, 2008 - 11:03 pm: Edit Post

Good memory 1000.

The link I had to that info has changed. See #8 for 12 hr.

I did find some info that Loma, MT now holds the record at a 103°F swing, from -43°F to 49°F.

Scott, Twice in 25 years for Chicago - see Jan. 29 entry


existing records (scroll down)

Rest up John. Busy weekend


By admin on Thursday, January 31, 2008 - 10:03 am: Edit Post

Thanks for the help everyone. Things are busy and I am a bit slow on the draw to respond right now.

-John


By scott_b on Thursday, January 31, 2008 - 02:03 pm: Edit Post

Average Joe,

Thanks for the info. What key word did you use to find the NWS sites? I had done a few searches prior to posting this.


By average_joe on Thursday, January 31, 2008 - 10:48 pm: Edit Post

Scott,
I use the search box provided on the NWS, NOAA, or NCDC websites. For something like this I would put in greatest temperature change or extreme weather. They are great places to start surfing. Learn to read the URL's that are provided in the results.

I also like to use domain-specific and U.S. Government searches through Google™'s advanced searches. I avoid using the regular Google™ search engine since it usually has too much commercial site results. I want reliable sources.

I've just started using USASearch.gov. It seems to give some interesting results. I like it better than Google™.

I usually read T.S.'s weather blog daily. Tom and Frank usually come up with some interesting facts.

Happy surfing.
Joe


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