Isolated Storms Developing

Isolated storms are beginning to develop just south of here thanks to plenty of heat, humidity, and an upper level low moving through southern Illinois. Storms will continue to build north through the rest of the afternoon and could produce heavy downpours. Storms should begin to decrease in coverage after sunset.

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This post was written by qni_it on June 26, 2007

Whole Lotta Moisture!

I’m sure we’ve all heard the term “evaportation”. How about the term “evapotranspiration”? There are many definitions, but in general it means: The process in which water is discharged to the atmosphere as a result of evaporation from soil and transpiration by plants. Well…I think we have a lot of evapotranspiration going on here. Now that we are in the heart of the growing season, especially for corn, plants are beginning to transpire moisture from their roots into the atmosphere. Along with that, there have also been a few days where some regions have seen a pretty decent amount of rain, especially the areas surrounding northern Illinois. So…where am I going with this? Well, dewpoints so far this morning have made it into the lower 70s, which is more typical of the tropics than here in the Land of Lincoln. Temperatures play a big role in how much plants transpire, especially during the growing season. And since temperatures have been rising quickly through the morning, I would imagine the plants would be giving off more water vapor in response. And places to the south and west of Rockford have picked up more than their share of rain. Even though winds are not that strong today, we still have somewhat of a transfer of moisture. So those two things combined are going to make for a very sticky Tuesday afternoon! – CANDY

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This post was written by qni_it on June 26, 2007

One day of serious heat and humidity

During the wintertime we often talk about the “1-2 Punch” being the snow and cold. However, the 1-2 Punch this time of year is the heat and humidity. Two things that will be seen in abundance in Northern Illinois and Southern Wisconsin on Tuesday. Air temperatures are expected to surge to 91° but inside a locked car the temperature can get to 130°! Never leave a child or pet in an un-airconditioned car…even for a minute or two.

If you’ve ever been to the Gulf Coast during the summertime, you know what 70° dewpoints feel like. Don’t go anywhere on Tuesday, we’ll have it here! When we factor the “feels like” temperature on Tuesday afternoon, it’ll likely be 95-98°. Take it easy and make plans to get your strenuous work done in the morning or late-evening. -ERIC­

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This post was written by qni_it on June 26, 2007

Watch for the Fog

A Dense Fog Advisory has been issued for Winnebago, Ogle, Lee, and DeKalb counties until 10am. Light winds and high humidity has caused widespread dense fog to form across the region. Visibilities in some spots have been reduced to zero as of 8 am. The fog will slowly lift through the morning and in the afternoon, leaving behind haze and humidity. Fog is possible again tonight, but I don’t think it will be as dense. Just remember to to use your headlights when driving. There have been a number of times where I have seen drivers without their lights on when it has been foggy.

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This post was written by qni_it on June 25, 2007

Bill would require weather radios in all mobile homes

By RYAN LENZ (AP)

EVANSVILLE, Ind. — Mobile homes across the nation would come equipped from the manufacturer with early warning radios to alert residents of dangerous weather under a bill announced Thursday in Washington. The bill, introduced by Rep. Brad Ellsworth from southern Indiana’s 8th District, mirrors state legislation dubbed “C.J.’s Law” that sailed through this year’s General Assembly. It requires all mobile homes installed after June 30 come equipped with the radios that broadcast warnings from the National Weather Service.

“This is about public safety. It’s about taking one more step,” Ellsworth, a former Vanderburgh County sheriff and Democrat, told The Associated Press in a telephone interview from Washington. As sheriff, Ellsworth oversaw rescue and recovery operations for days following a tornado that killed 25 people on Nov. 6, 2005. The storm hit in the pre-dawn hours with winds estimated around 200 mph. Twenty of the storm’s victims lived in Eastbrook Mobile Home Park on the outskirts of Evansville, where emergency officials said few had weather radios or nearby shelters where they could have gone as the storm neared. Opponents of such bills have argued that requiring the radios — which typically cost around $30 — would not be cost effective in large scale production for mobile home manufacturers. Read the whole story here.

I happen to think this is a great idea. Why do we require new homes to have carbon monoxide detectors and not weather radios? Perhaps someone should invent a smoke/CO/weather detector for homes! -ERIC

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This post was written by qni_it on June 25, 2007

Clouds Keep Temps Down

Temperatures this afternoon ran about 10-12 degrees below average. The reason: early morning rain and significant cloud cover. Due to the clouds tonight, temperatures will only fall into the lower 60s. The cooler weather isn’t expected to stick around, though. As the next work week begins, the jetstream will make another trip to the north allowing heat that has been building in the southwest to move northeast. Thankfully it won’t be a long-lived heat wave. A cold front will quickly sweep through the midwest Wednesday afternoon/night and bring temperatures back to a comfortable level by the end of the week.

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This post was written by qni_it on June 24, 2007

Where is the Rain?

Try to wrap your mind around some of these 24 hour rainfall totals that fell over eastern Iowa and westcentral Illinois. These are just a few of the reports that have been coming in this morning. Those 4 towns in Illinois lie between the Quad Cities and Peoria. -ADAM

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This post was written by qni_it on June 22, 2007

Turning Right

The storm system has taken a bit of a right turn on its path towards the Stateline. The heaviest total amounts of precipitation by Saturday night will run from a Cedar Rapids to Quad Cities to Peoria line. We are not in the clear by any means, but our flash flooding threat has certainly diminished.

You can see the line between the extreme rain and light rain is a thin one. Rainfall totals just over 100 miles to the south of Rockford will be 10 times as high as what we see in the Forest City. -ADAM

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This post was written by qni_it on June 22, 2007

On the silent side of the "clash"

This weather event has come and gone with little fanfare. While there were numerous reports of tornadoes across Central Iowa, things here were just too stable. This morning’s thunderstorms allowed dry air to filter in from the northeast. This afternoon, storms formed over Central Iowa and moved east. When they encountered the dry air over Northern Illinois, they diminished. Much like how magnets repel each other if their polarities are switched, the storms veered south into Central Illinois where there was plenty of moisture available.

While there will be a few bursts of heavy rain over Northern Illinois and Southern Wisconsin through early morning, the severe threat for our area is over for this go-around. -ERIC

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This post was written by qni_it on June 22, 2007

Severe Thunderstorm Watch

A Severe Thunderstorm Watch has been posted until midnight for the counties of Green, Jo Daviess, Stephenson, Carroll, and Whiteside.

Having said that, I’m not too impressed with the strength of the storms that will affect our region. The atmosphere is still moderately unstable, but it appears the worst of the weather will move into West-Central Illinois. Additional severe storms with hail and gusty winds have been roaming parts of Southwestern Wisconsin. These will be monitored during the next 4 hours. No severe weather is anticipated in our region through 9:30pm. -ERIC

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This post was written by qni_it on June 22, 2007