June, 2012

Don’t Be Mislead

June 30th, 2012 at 4:18 pm by under Weather, WTHI Blog

The 7 day outlook has a little rain icon in just about every day.  However, this is only to denote a slight chance for rain and not a general rainfall.  Please don’t let the little pictures of rain mislead you or get your hopes up too much.

Saturday Night

June 30th, 2012 at 4:15 pm by under Weather, WTHI Blog

There is a slight chance for storms, but that will be mainly north of Terre Haute.  Otherwise, hot.

Extra Second!

June 30th, 2012 at 4:05 pm by under Kevin Orpurt's Blog, WTHI Blog

Tonight will be one second longer than usual, according to the International Earth Rotation and Reference Service System.  They’re the ones who adjust the delicate atomic clocks according to Earth’s rotation.  Without these minor adjustments, our distant ancestors would experience sunset in the middle of the afternoon.  As I have written before, the Earth doesn’t pay much attention to our clocks when it comes to the length of the day.  Some days are longer than 24 hours, some less.  Our man-made clocks aren’t designed to keep up with these minor discrepancies.  So, every once in awhile, official timekeepers tinker with the official clocks to adjust for the differences.  Tonight is one of those nights.  You’ll have an extra second just before midnight.  Make it count!

Sev. T-Storm Watch Update

June 29th, 2012 at 2:44 pm by under Weather

As of 2:45 p.m. EDT, the National Weather Service has added Clay, Owen, Parke, Putnam, Vermillion and Vigo counties to the Severe Thunderstorm Watch. This watch will be in effect until 7 p.m. EDT. Should thunderstorms develop and hold together, the main threats will be gusty winds and hail. Please stay posted to News 10 on-air and online at wthitv.com for all the latest weather information.

Worshipping Aten

June 29th, 2012 at 1:46 pm by under Kevin Orpurt's Blog, WTHI Blog

The Egyption Pharaoh Akhenaten was an interesting figure.  Originally known as Amenhotep IV, he became obsessed with worship of the Sun, specifically the Solar Disc.  Later, he worshipped only light.  He forced his people to abandon all their other gods and worship only the god of light, the Aten.  To him, there was only one god.  He even moved his capital city farther into the desert, where he could worship light without the old trappings of the former gods he had banned.  Some believe Akhenaten was the first monotheist.  Sigmund Freud even went so far as to link Moses with Akhenaten.  With our current hot and clear weather, I can’t help but recall how much other leaders of the time complained about how Akhenaten would make them stand in the hot Sun for meetings and festivals.  There was little or no shade and even the buildings were open-roofed.  While I find Akhenaten a highly fascinating character, I’m glad I didn’t live during his time.  I need shade and air conditioning!  By the way, Akhnaten’s people overthrew him and he was exhiled into the desert with a band of followers.  Later, he returned to try to reclaim his throne, but was not successful.  He was followed the second time by another band of followers who wandered in the desert with him for an indefinite period of time.  One final note, Akhnaten was King Tut’s father!

Severe Thunderstorm Watch

June 29th, 2012 at 12:06 pm by under Weather

A Severe Thunderstorm Watch has been issued for Fountain Co. and areas along and north of I-74 until 7 p.m. EDT. The main threat looks to  stay to the north of the heart of the Wabash Valley, but isolated storms are possible in northern portions of our viewing area. The main threats include gusty winds and hail embedded in thunderstorms.


June 29th, 2012 at 9:18 am by under Weather

Excessive heat will once again be in place for today. High temperatures will climb near 104°. The difference between yesterday and today is there will be more humidity introducing a heat index level. This will be between 105°-108°. Expect increasing clouds during the day with isolated storms possible mostly north of I-70 during the late afternoon and evening hours. An Excessive Heat Warning will be in effect through 8 p.m. EDT for our Indiana counties and a Heat Advisory for our Illinois counties until 7 a.m. CDT Saturday.

Skies will slowly clear out during the overnight hours as temperatures stay mild near 73°. Saturday will be partly cloudy with a small chance of isolated afternoon storms. It will be hot again with highs near 100° and heat index up to 104°. We’ll keep a 20% chance of spotty storms with us for Sunday as temperatures return near 98°.


Excessive Heat Today

June 28th, 2012 at 8:09 am by under Weather

Excessive heat warnings and heat advisories are posted for the entire Wabash Valley for today as record breaking heat settles in. Expect high temperatures to reach 105° this afternoon. The standing record is 103° set back in the extremely dry year of 1934. Otherwise, it will be breezy today with wind gusts out of the southwest up to 25 mph which will enhance fire danger. A Red Flag Warning is also in effect for the entire area today.

Mostly clear and warm tonight dropping back near 74°. Expect another hot one for Friday with highs near 101°. Futurecast tries to pick up on rain, but this will not reach the ground. What we can expect is increasing cloud cover and moisture, which will make it feel more humid giving us heat index temperatures a few degrees higher than the actual air temperature.

A cold front will prompt a 20% chance of isolated storms on Saturday, but overall we’ll stay dry. Temperatures will remain above average with highs near 98°. Another rain chance moves in on Tuesday. The fourth of July looks dry and hot at this point with partly cloudy skies and high temperatures near 97°.


Heat and Drought

June 27th, 2012 at 5:31 pm by under Kevin Orpurt's Blog, WTHI Blog

Solar energy that reaches the Earth can be utilized in a number of different ways.  For this post, however, we’ll only talk about two.  First, the Sun’s energy can be used to evaporate water.  When evaporated water rises into the cooler layers of the atmosphere above, it condenses into clouds.  These clouds, in turn, release their condensed water in the form of rain.  The process then repeats itself.  Secondly, the Sun’s energy can be used to create heat.  With a clear sky, solar radiation is absorbed by the Earth, then radiated back into the atmosphere in the form of heat.

When there is an lack of water to evaporate, the Sun will create more heat.  Also, a lack of evaporated water will often lead to a clear sky, further perpetuating the cycle of the creation of heat and the lack of cloud development.  As the Earth radiates more heat, the upper reaches of the atmosphere become warmer, inhibiting the development of cloudiness, even if some moisture is present.

We can see, then, how heat and drought are linked.  The less water there is in the atmosphere or on the Earth’s surface, the hotter it is likely to be.  This is the reason most record highs in the summer are set in drought years.  This is also the reason the temperature is likely to be extremely hot under our current dry conditions. 

It is going to take a very strong weather system to break the heat and drought cycle in which we currently find ourselves.

Heat Returns Today

June 27th, 2012 at 7:42 am by under Weather

Click here for today’s video forecast.

This morning will be the last of the comfortable temperatures. High heat is moving into the Wabash Valley beginning this afternoon. With sunny skies, a dry ground and low humidity, temperatures will soar into the mid 90s with a southerly breeze up to 15 mph. We’ll stay clear and mild during the overnight tonight dropping back to 65°.

The core of the extreme heat will move in tomorrow with high temperatures peaking near 104°. A Heat Advisory has been issued for the entire area until 9:00 p.m. EDT Thursday. Remember to take proper precautions. I’ve provided a few heat tips below, but remember the main danger with the heat is developing a heat-related illness. Heat stroke is an emergency and you can learn the signs of this from our website under the “Dry Zone” tab. Dangerous heat will continue on Friday as highs climb near 102°.

A weak cold front will move through late Friday into early Saturday dropping temperatures off ever so slightly. It will also prompt a small chance for isolated storms both Saturday and Sunday. Expect temperatures to remain above average.