|Ophelia's Red Storm Sun|
Woke at 4:30 am and, unable to sleep, started work. Completed the last changes for the cover to the Roman catalogue and sent them off. Then worked for rest of day on Bulletin, including the book review. Now only need to complete cover.
There was an eerie sky over Milton today with light cloud and a definite red tinge to sun and clouds. I took a break to take a series of photographs to try and capture the phenomenon. Similar red skies and sun have been created in the past by Saharan sand whipped into the high atmosphere and blown across to the UK. This time fine ash from fires raging in North and central Portugal and Galicia in Spain were also carried along by storm Ophelia as it hurtled to hit Ireland. We were just seeing the far outriders of the massive storm.
|Storm Ophelia with evidence of building Sting jet. Photo EUMETSAT and Severe Weather Europe site|
- The 'sting in the tail' is produced by a distinct jet of air - the sting jet.
- It starts out three or four kilometres above the ground and descends over three or four hours.
- Snow and rain falling into it evaporates and cools it as it descends, helping to accelerate it to high speeds.
- It can accelerate to more than 100 mph.