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Can corn sweat really boost the humidity that much though, all the way to 100%? Has anyone ever observed dew collecting on the corn fields at the unusual times you would expect under such conditions, ex 4-6pm? What happens to all that humidity at night when the water holding capacity of the air rapidly declines alongside temperature?
There have been rain showers and thunderstorms also. If it rains and then the sun comes right back out, dew points can go through the roof. You can actually see the moisture turning to basically steam and rising off of pavement, roofs and dark colored plants. That may explain some of the anomalies on the dew point maps.
Can corn sweat really boost the humidity that much though, all the way to 100%? Has anyone ever observed dew collecting on the corn fields at the unusual times you would expect under such conditions, ex 4-6pm? What happens to all that humidity at night when the water holding capacity of the air rapidly declines alongside temperature?
Atlantic yesterday afternoon dropped to 84% then by early evening back to 100%. There is also fog reported from about midnight to about 8am. In the video 10 billion gallons of water are released daily in Ohio from corn. Understanding corn sweat
Last edited by Oklazona Bound; 08-23-2023 at 11:27 AM..
Dew points are in the mid 80s throughout out Illinois right now. Heat indecies as high as 126F at Noon with 86F dew point. The National Weather Service office in southwest suburban Romeoville near Chicago is currently reported an 84F dew point with a heat index of 123F. Wow
It seems to me the numbers are real. its a combination of heat and humidity and added to it corn sweat that pushed the dew-points even higher. Probably nothing wrong with the equipment. Should they count? Because if you walking by the weather station it probably does feel like 150 degrees. Yet if they did not grow so much corn there the dew points would be 10 degrees cooler.
Not exactly the same but I saw a similar phenomenon somewhat regularly in North Carolina. I was stationed at Ft. Bragg for a few years - it's nothing but pines for miles. They would take us out to the DZ, easier to see from a helicopter than a plane, but when you were on the ground you could feel the humidity but you couldn't tell how hazy it actually was. From the air you couldn't see the ground. It was just a wet blanket of humidity that rose to maybe 200-300 feet. The first time I saw it I thought it was a fog - but then I saw a giant hole in the "fog" around the DZ because there were no trees there to evapotranspirate.
There have been rain showers and thunderstorms also. If it rains and then the sun comes right back out, dew points can go through the roof. You can actually see the moisture turning to basically steam and rising off of pavement, roofs and dark colored plants. That may explain some of the anomalies on the dew point maps.
Yeah, that's how Toronto achieved its 26.0C (78.8F) dew point last August, which is very unusual for the city. Heavy rain mid-day, and then the sun came out soon after and it was steaming all over.
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