Red in the morning, sailor take warning?
Good morning everyone! We got up at 5:30 today to a spectacular view that made us race outside. While the saying “Red in the morning, sailor take warning; red at night, sailors delight” is a just a saying, it does have some scientific sense to it.
To get a reddish color in our atmosphere, there has to be dust particles and water vapor in our lower atmosphere. These help scatter the sunlight at sunset and sunrise. Red light, the largest wavelength out of our visible light spectrum, is the one that makes it to our eyes along with the next two largest wavelengths, orange and yellow. The other ones are too short and are broken up on the way here. That is, until the sun rises and it has less atmosphere to travel through (then, we should see the sky as blue, or the color that has a shorter wavelength and is scattered the most by the air molecules. But we know we have not seen blue in a while!)
Anyways, having dust particles in the East can mean that a nice high pressure system passed us from West to East (thank you, planetary winds) and carried lots of dust with it. The reason is that high pressure systems are synonymous with dry weather and clear skies, which means that dust could be accumulating in the air mass. Low pressure systems typically have precipitation, and since every single rain droplet needs a grain of sand or dust (bet you didn’t know that the Amazon rainforest needs the sand traveling from the Sahara!), the atmosphere below low pressure systems tend to be clear. So if it is rainy, the eastern horizon, which shows what just passed us, shouldn’t appear red at all. It should appear yellowish as the sun is rising.
Well, yesterday we had somewhat of a break – I wouldn’t go as far as to call it a high pressure system, but we did have patches of blue sky. In fact, we even saw the moon in its waxing gibbous phase and some stars at night. So it might have carried some dust with it to the east, giving us a red morning.
Our bird watching this morning also gave us two new red animals: American Redstart, and Rose-breasted Grosbeak! The Redstart is small as a sparrow and its song is inconspicuous among all the other louder ones, and you might miss it unless you manage to see the bright stripe on its wing. This one was pure luck as the bird alighted right by us (it takes a lot of guts for a bird to hop onto a branch next to a clumsy human with binoculars and two energetic dogs). The Rose-breasted grosbeak was the one we spied with binoculars, and it truly was difficult, but its red collar finally gave it away. We debated between a robin and a female oriole for a while, because all three have similar songs.
Our other birds this morning include: red-winged blackbird (of course), morning dove, robin, cardinal, and blue jay.
The temperature today started out at 40°F and might rise to the early 60s in the afternoon. The sailor saying might prove true – the high pressure system in the east might mean that a low pressure system is about to move in with more rain. The jet stream has been fluctuating an awful lot lately, and if it does buckle up we might see temperatures in the higher 70’s on Sunday or Monday.
Have a great day everyone!
Love,
Mack