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March 2025 General Discussion


Brian D
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There used to be a way to use the Iowa State IEM web page to look up the number of days since a winter storm warning, or tornado watch, for example, was issued by a NWS office. I can't seem to find that anymore. Also, there was one time when I figured out how to look up, say, for example lowest pressures recorded at airports. I can't seem to find that option either on Iowa State. Does anybody know anything about that? I figure, maybe with this 980mb low, it'll be extremely low pressure for a few airports' historical records.

here's the base web site

https://mesonet.agron.iastate.edu/

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3 minutes ago, Chinook said:

There used to be a way to use the Iowa State IEM web page to look up the number of days since a winter storm warning, or tornado watch, for example, was issued by a NWS office. I can't seem to find that anymore. Also, there was one time when I figured out how to look up, say, for example lowest pressures recorded at airports. I can't seem to find that option either on Iowa State. Does anybody know anything about that? I figure, maybe with this 980mb low, it'll be extremely low pressure for a few airports' historical records.

here's the base web site

https://mesonet.agron.iastate.edu/

Here's the "days since last warning/advisory" chart.  I couldn't find anything about pressure records.

https://mesonet.agron.iastate.edu/plotting/auto/?q=92

 

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12Z GFS has another system in around 10-11 days that verbatim, despite being another sfc/500mb powerhouse is too moisture-starved for sig :twister:(at least in most of this sub). :rolleyes: If the timing changes a bit (which it will), it could turn into something, though.

 

Would be a white rain blizzard on the back side on the 13th as depicted. 973MB over Chicago and it's 55 degrees in Milwaukee, ~30 in Madison at 18Z. :lol:

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3 hours ago, Snowstorms said:

YYZ got down to 3 last night. Colder than any low we saw in February. 

It’s funny how much warmer it has been there than over here. Maybe because the airmass had to travel over one extra lake(Lake Huron) to get to you? While we never had any clear and calm nights to really crash the temperatures, we did have some nights below zero with wind which doesn’t really happen too often here. 

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1 hour ago, roardog said:

It’s funny how much warmer it has been there than over here. Maybe because the airmass had to travel over one extra lake(Lake Huron) to get to you? While we never had any clear and calm nights to really crash the temperatures, we did have some nights below zero with wind which doesn’t really happen too often here. 

I think it depends where the cold is coming from? Extremely -AO/NAO or +PNA induced cold outbreaks drop the coldest temperatures across the Plains/Midwest.  The block kept parts of New England and Quebec warmer than average this winter. Similar to 2009-10. 

Our coldest temperatures occur when the source region is Hudson Bay and Quebec. Thats more typical during weaker -NAO/AO blocks and -EPO blocks. Our coldest wind is from due N or NW and for most of this winter, especially at night, it was out of the SW or WSW. I think its the same logic for NYC and Boston too. I think Detroit too. 

So in all honesty, this winter was not cold. From Feb 4-Feb 22 we stayed below freezing, but the cold wasn't exceptional. We finished DJF at 25.3F. Our 91-20 normal is 25.3 and our 81-10 normal is 24.6. 

I agree with the clear nights part. Maybe the warm lakes kept creating lake effect clouds over our entire region? 

 

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