POLAR STRATOSPHERIC CLOUDS COULD BE IN THE SKY OVER THE COMING MORNINGS AND EVENINGS
Be well worth keeping a eye on the sky's around sun rise and sunset over the coming days temperatures in the stratosphere it will be cold enough over the Ireland and the UK for polar Stratospheric clouds (PSCs) (nacreous clouds) to form.
The form at a altitude of 15,000–25,000 meters (49,000–82,000 ft). They are best observed during civil twilight when the sun is between 1 and 6 degrees below the horizon.
PSCs form at very low temperatures, below −78 °C (−108 °F).
Over the past 2 months I have been watching the temperature in the stratosphere and conditions this week now look perfect for them to form especially over next week during Christmas time .
Current temperature in the stratosphere will be -78 and below over the next few days especially next week.
The Image above shows the temperatures over the start of next week when there will be a higher risk.
These clouds are very rare down at these latitudes and only be see every few years.
In 2016 the odds were better due to a opening in the ozone Layer over us but a display this time can not be ruled out.
If they do manage to form over the coming mornings and evenings make sure to take photos and send then on.
Kenneth Mc Donagh from the Donegal Weather Channel
2019 CALENDAR NOW ON SALE