Saturday, June 16, 2018

A very bad week for vog

For the past few days the trade winds have failed to clear the air. The air in Kona is in the Orange range, while Waikoloa is not faring much better. On the bright side, this is typical Kona vog, high in PM2.5 but low in SO2. The weak trade winds should continue for a few days more.

The trade winds normally come from a high pressure system to the northeast of Hawaii. But three low pressure systems to the east are pulling the trade winds away from Hawaii. This is a unusual situation and we can hope for better conditions while we are on the Big Island in July.

The wind map below came from Earth Nullschool.


at

No comments:

Post a Comment

The easiest way to comment

1) In "Comment as:", select the profile for "Name/URL" which is second from last in the list

2) Fill in your name but leave URL blank, then click continue

3) Type your comment in the comment box, then click the "Publish" button at the bottom

Subscribe to: Post Comments (Atom)

Hawaiian volcano inspired vocabulary

Here is a fun video about how Hawaiian volcanoes have affected our vocabulary.

  • How reliable are the trade winds
    The trade winds died down starting Monday. For two days, there were intervals of high SO2 levels around the island. But today the trade wind...
  • How to predict Vog for the Big Island
    During a volcanic eruption, the vog on the Big Island is primarily determined by the direction of the wind. If you can visualize the overall...
  • How to find the AQI of Waikoloa
    If you googled AQI for Waikoloa, you may get to the Weather Underground for Waikoloa webpage. It will show you an AQI for PM2.5 and claims ...