Ashfall warning
From EverybodyWiki Bios & Wiki
An Ashfall Warning means that a volcano undergoing a major eruption is creating the likelihood of significant impact on the public (with higher risk to the health of people with respiratory illnesses) and maritime activity due to ashfall accumulation forecast to be greater than or equal to 0.25 inches (6.4 mm), significant debris, lava, or lahar flows.
Example[edit]
URGENT - MARINE WEATHER MESSAGE National Weather Service Seattle WA 640 AM PDT Fri May 7 2021 PZZ135-072200- /O.NEW.KSEW.MH.W.0012.210507T1340Z-210508T0400Z/ Puget Sound and Hood Canal640 AM PDT Fri May 7 2021 ...ASHFALL WARNING IN EFFECT UNTIL 9 PM PDT TONIGHT… * WHAT…Heavy ashfall from the volcanic eruption of Mount Rainer. * WHEN…Until 9 PM this evening. * WHERE…Puget Sound and Hood Canal. * IMPACTS…Falling volcanic ash and debris can cause respiratory distress in people, and render engines or electronics inoperative. * ADDITIONAL DETAILS…Additional information is available at vulcan.wr.usgs.gov. PRECAUTIONARY/PREPAREDNESS ACTIONS… An Ashfall Warning means that a volcano undergoing a major eruption is creating the likelihood of significant impact on the public (with higher risk to the health of people with respiratory illnesses) and maritime activity due to ashfall accumulation forecast to be greater than or equal to 0.25 inches (6.4 mm), significant debris, lava, or lahar flows. Vessels should consider remaining in port or avoiding the warning area. Those with respiratory sensitivities should take extra precautions to minimize exposure. Protect electronics and cover air intakes. Remove ash from surfaces with water if possible, to prevent excessive accumulation. && $$
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