Weather for NearSys Station, May 2019

The air temperatures continue to raise overall, but they did stall during the third week. Since it was rainy during that time of the month, it was also more humid. From the 16th to the 27th, we got over two inches of rain. The ground continued to warm up to the benefit of plants.

24-Hour Photometer for NearSys Station, 28 May 2019

Finally, we got enough of a break from the rain that I felt secure enough to put the LED Photometer outside.

Visibility for NearSys Station, 26 May 2019

The UAVSonde was launched at 9:30 AM this morning in mostly clear skies. According to the images returned, the visibility this morning was 50 miles.

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24-Hour Temperature and Relative Humidity for NearSys Station, 24 May 2019

Because of the threat of rain, the Amprobe TR200 Temperature and Humidity datalogger was left on the front porch. From the spike shown in the data, the sun must have shown on the sensor for a period of 40 minutes beginning

Air Quality for NearSys Station, 17 - 25 May 2019

Except for a few times when the jetback's battery died, there's good air quality data for NearSys Station this week.

Visibility for NearSys Station, 19 May 2019

With our drizzly rainy skies, the visibility is severely restricted to only between 15 to 20 miles. Based and ground and cloud temperatures, the ceiling is around 4,000 feet.

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24-Hour Temperature and Relative Humidity for NearSys Station, 16 May 2019

It finally stopped raining and dried out a bit.

Air Quality for NearSys Station, 10 - 17 May 2019

A little more variance in the air quality at NearSys Station now that it's warmer and it's time to mow the lawn.

Sunspot AR2741

Sunspot AR2741 has been rotated to the center of the sun's face. Old AR2740 has faded from view and AR2741 is very prominent now. The darker umbra is distinguishable from the outer and lighter penumbra.

24-Hour Photometer for NearSys Station, 11 May 2019

I left the Photometer in the shadow of the house to see how it would react. Now I know, it doesn't measure the brightness of the overhead sky, it measures it's direct exposure to sunlight.

At 11:00 local time, the sun cleared the roof of the house.

Sunspot AR2741, 11 May 2019

Here's an image of the sunspot taken this afternoon. That makes it easier to compare to my other images from previous days. You'll notice that older AR2740 has basically disappeared.

Visibility for NearSys Station, 11 May 2019

Bright blue skies, low wind, and a high temperature of 80 degrees. You couldn't ask for a better May weekend. The visibility, according to UAV images is in excess of 50 miles.

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Sunspot AR2741, 11 May 2019

This is an early morning image, so the sun is rotated from my afternoon images. AR2740 is fading away and AR2741 is getting more prominent. Through my hydrogen alpha telescope, it appears AR2741 is two dark patches touching at their edges. I can also see a bright ring suurounding the sunspot and that ring looks like two intersecting rings.

24-Hour Temperature and Relative Humidity for NearSys Station, 10 May 2019

Warmer weather and clear skies. Just Another perfect day in Southwest Idaho.

Sunspots AR2740 and AR2741, 9 May 2019

The younger AR2741 is getting darker than AR2740. I was able to separate AR2741's outer, brighter rim (penumbra) from its inner, darker umbra in today's image. Based on the sun's pixel size and diameter in miles, I determined that AR2741's umbra has a diameter of 9,255 miles and it's penumbra has a diameter of 18,023 miles. Compare this to Earth with a diameter of 7,920 miles.

Sunspots AR2740 and AR2741, 7 May 2019

Another 24 hours and the two sunspots have rotated even further into view.

Based on pixel counts and the sun's diameter, AR2740 is 9,589 miles across.

Sunspot AR2740, 6 May 2019

Sunspot AR2740 continues to move away from the sun's edge (due to solar rotation). Also, today's image shows another, smaller sunspot appearing over the sun's rim. Look closely to AR2740's lower left to see AR2741.

Sunspot AR2740, 5 May 2019

Sunspot AR2740 continues to move away from the edge of the sun. Here is today's image of the sunspot. Since it was taken at a different time of the day, the image is rotated from yesterday's blog entry.

Visibility for NearSys Station, 5 May 2019

The UAVSonde was launched after 14:00 today and it's images indicate the visibility is greater than 50 miles.

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Sunspot AR2740, formerly Sunspot AR2738

Sunspot AR2738 still exists and remains active. After the sun's rotation carried to the far side of the sun (from our perspective) for two weeks, it has reappeared. The sunspot is now called AR2740 and is visible in the upper left of the image I recorded this morning.

24-hour Photometer for NearSys Station, 3 May 2019

Odd blips in the data in the morning before sunrise up until noon. After sunset, all channels behaved normally.

Air Quality for NearSys Station, 25 April to 3 May 2019

Three temporary spikes of questionable air quality. However, for the week the air quality has been very good. The average air temperature dropped slightly during the middle of the week. However, we are now on a rebound with even higher temperatures expected.