Last Thursday’s Rainbow Arced Over West IslandMLBaron - Skywarn Weather Spotter documents a rainbow event.
WEST ISLAND: The unstable atmosphere (last Thursday-May 5, 2011) was getting more agitated all day with increased amounts of virga that eventually reached the ground as scattered sheets of rain showers trained east in a narrow corridor. As a weather spotter I sensed that an interesting weather event was imminent.
Ominous sky to the north with training showers. Towering cumulus clouds build upwards.
I waited for over 3 hours with a front row seat on the causeway before my intuition came true - a rainbow appeared over West Island. With the sun breaking through at the end of the day and light showers still active, the ingredients of a rainbow coalesced perfectly over West Island.
Recipe for a rainbow, the sun angle about 40 degrees, "TOTO II" Skywarn GMC Mountain Bike on scene
and a band of light showers inbound.
No two people ever see the exact same rainbow because of the precise angle, however many witnessed a double-rainbow from the causeway as it arced over the island looking east.The phenomena lasted less than 2 minutes.
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