Radar for Traveling Folks

I’ve spent a lot of time and miles traveling our great nation. On paved roads, dirt roads, and places where there was hardly any road. I’ve traveled in weather so wonderful only singing will do, sliding ice, blinding snow, and rain so hard the wipers couldn’t clear the window. When dark clouds start moving in, you need a way to know what’s ahead.

2015 03 31.Ag Blog 01.PM 0606.West from Hwy 9 east of spur

(Looking west from Highway 9, east of Turnpike Spur entrance, 6:06 PM 03/25/15.)

One of the traveling tools I’ve come to rely on is radar on my trusty cell phone. Continue reading

Staying Ahead of Winter Storms

How do you keep up with winter weather? Traditionally, we’ve turned to radio and TV and these still provide valuable information. There is also a wealth of winter storm information that you can access directly from the National Weather Service.

The National Weather Service (NWS) provides regional overviews and products that let you drill down to individual farm or ranch locations. Regional maps give you a broad view of developing weather. These regional maps are updated as needed as weather events unfold. Here are regional map examples from the NWS Tulsa Forecast Office and the NWS Norman Forecast Office showing recent winter storm information.

2015 03 04.Ag Blog.No 01.Graphicast Tulsa icing

2015 03 04.Ag Blog.No 02.Graphicast Norman Amounts

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Cold, Wind and Cattle

Cold temperatures lose there bite when wind speeds are low. Even temperatures down near freezing can feel balmy when the wind is still.

The real chill comes when the wind drives the cold through your clothes. With a biting wind, cold temperatures can chill you clear down to the bone. Consider Sunday, February 22, 2015 across the state of Oklahoma. The coldest wind chills that day were single digit numbers. On the Oklahoma Mesonet, wind chill and heat index are reported on the Apparent Temperture map. This provides a single map that can show either or both heat and cold stress.

2015 02 25.Ag Blog.No 01.Sunday Min Wind Chill

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Wheat First Hollow Stem Advisor

In the Great Plains, wheat and cattle go together like beef and potatoes, pancakes and syrup, bread and butter. Wheat is a great winter forage. Cattle love it and its excellent for weight gain.

Farmers and ranchers have a choice to graze wheat and skip grain production or pull cattle in late winter and allow the wheat plant enough time to produce grain. To grow wheat as a dual-purpose crop, make the most of grazing, and still produce a good grain crop, wheat growers pay attention to first hollow stem.

Wheat First Hollow Stem dime

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New Cell Phone Forecast Tool from the National Weather Service

You need the weather to hold for two more hours to finish your latest job. Will it? Will it get too windy to spray? Is the temperature going to change rapidly impacting livestock? Is rain headed your way?

The National Weather Service (NWS) has a new EXPERIMENTAL forecast webpage/widget designed for mobile devices that offers an excellent assortment of easy to access forecast and weather information.

2011 02 11.No 01.Ag Blog.NWS Exp Widget

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Relative Humidity and Dewpoint

Farmers and ranchers understand what relative humidity means. Humidity and hay moisture are critical for proper baling. The right humidity is needed for cranking up the combines for wheat harvest in summer or the cotton stripper in fall. High humidities and mild temperatures make it ideal for fungi to attack plants. Low humidity increases fire danger.

2015 02 03.No 01.Relative Humidity.Dec 01

So farmers and ranchers have a good feel for humidity. What about dewpoint temperature? Dewpoint temperature is that other “temp” that TV meteorologists have on their graphics. Dewpoint is common to meteorologists. It’s not commonly talked about in ag circles.

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Monitoring Crop Heat Units

Fall really brings out the differences in crop heat units. It’s a time that highlights the differences in each days heat units and their accumulation.

Cotton and Peanut Crop

Growers are carefully monitoring cotton and peanuts in Oklahoma to prepare for harvest this fall and early winter. One of the weather-based tools available to farmers are degree-day heat unit calculators. This tool uses daily air temperature minimums and maximums to calculate the heat units crops receive to drive growth. Accumulated degree-day heat units over the growing season provide an estimate of crop maturity.

The Oklahoma Mesonet has Degree-Day Heat Unit Calculators for alfalfa, corn, cotton, grass hay, peanut, sorghum, soybean, and wheat. Users can go back to 2004 to compare heat units from previous years to each other or the current season. Growers can enter their closest Mesonet site and crop planting date to calculate a custom degree-day heat units for their crop.

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