Monday, November 9, 2009
Tiltmeter sensors based at Halema`uma`u and Pu`u O`o craters recorded three days of very up & down fluctuation in magma pressures; all on the low-pressure side. This has translated throughout the lava tube plumbing and surface flows as a lessening of visible activity: less molten lava surface breakouts, a weaker ocean entry plume. The graphing now indicates an up tic in pressure for the last 24 hours. If that trend continues we may once again be seeing more surface activity tonight.
Last night at the Waikupanaha ocean entry, even though the steam plume was not as strong as it has been this past month, visitors reported and recorded on their cameras something not often seen from the viewing area: molten lava rivers running off the shoreline pali and into the sea.
Molten lava continues reaching the West-Waikupanaha ocean entry and is covering the last remnants of a long-standing blacksand beach as the photo below documents:
From the National Weather Service Forecast Office – Honolulu “HYDROLOGIC OUTLOOK NATIONAL WEATHER SERVICE HONOLULU HI 340 AM HST MON NOV 9 2009
...THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A FLOOD POTENTIAL OUTLOOK FOR THE STATE OF HAWAII... LOCALLY HEAVY RAINS AND FLASH FLOODING POSSIBLE WEDNESDAY AND
THURSDAY... AN UPPER LEVEL LOW IS FORECAST TO MOVE OVER THE ISLANDS WEDNESDAY AND THURSDAY AND BRING SOME UNSETTLED WEATHER THAT INCLUDE THE CHANCE OF HEAVY RAINFALL AND FLASH FLOODING.”
Click on this Central Pacific Water Vapor Loop to see the northern low pressure system that is pushing unstable cool air over the Hawaiian Islands.
Posted by Leigh at 10:50 AM