<?xml version='1.0' encoding='UTF-8'?>
<MeteorologicalBulletin gml:id="uuid.7ab04cfc-ef2d-44c4-930f-9fee925b7291" xmlns="http://def.wmo.int/collect/2014" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://def.wmo.int/collect/2014 http://schemas.wmo.int/collect/1.2/collect.xsd"><meteorologicalInformation><VolcanicAshAdvisory gml:id="uuid.1ffa7505-95c6-4402-9462-d332215de382" permissibleUsage="OPERATIONAL" reportStatus="NORMAL" xmlns="http://icao.int/iwxxm/3.0" xmlns:aixm="http://www.aixm.aero/schema/5.1.1" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://icao.int/iwxxm/3.0 http://schemas.wmo.int/iwxxm/3.0/iwxxm.xsd"><issueTime><gml:TimeInstant gml:id="uuid.6b2e8104-011d-489b-9d1c-a6e66f7a9717"><gml:timePosition>2026-08-26T18:13:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.87924c56-3f11-4753-a387-3b8435bf977b" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.8901274e-825c-47dd-8b03-e729c72f29a3"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.91b861cd-c9c0-4ff2-af97-9b4fde9042b5" xmlns="http://def.wmo.int/metce/2013"><name>RINCON DE LA VIEJA 345020</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.da923ab1-ddda-4714-a7a1-58b52f41e4d6" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>10.817 -85.317</gml:pos></gml:Point></position><eruptionDate>2026-08-26T18:13:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>COSTA.RICA</stateOrRegion><summitElevation uom="[ft_i]">5672</summitElevation><advisoryNumber>2026/001</advisoryNumber><informationSource>GOES-19. VONA. NWP MODELS.</informationSource><eruptionDetails>VONA RPTD ERUPTION</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.74dce402-de73-4177-9895-d28777c53e22" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.70a66133-44cd-42ea-bbbd-c291871aabb7"><gml:timePosition>2026-08-26T17:40:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.8f9cefc3-4027-460d-9034-ce70d4cc9330"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.edf14053-8073-42e3-94b8-cb85a18fc352"><aixm:upperLimit uom="FL">200</aixm:upperLimit><aixm:upperLimitReference>STD</aixm:upperLimitReference><aixm:lowerLimit>GND</aixm:lowerLimit><aixm:lowerLimitReference>SFC</aixm:lowerLimitReference><aixm:horizontalProjection><aixm:Surface axisLabels="Lat Long" gml:id="uuid.f96907ce-7b46-4190-a561-a42176a99082" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">10.884 -85.483 10.783 -85.483 10.817 -85.317 10.834 -85.317 10.884 -85.483</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent><directionOfMotion uom="deg">315</directionOfMotion><speedOfMotion uom="[kn_i]">10</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.85dc45bc-ce59-46bf-b09e-987334f607eb" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.5df512e1-0db0-4a1b-8a75-accd5ad3aa43"><gml:timePosition>2026-08-26T23:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.48fc7677-a893-4773-89d1-d351f8fc8cde"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.40b0f706-3016-4e34-a0e1-7c37691e902d"><aixm:upperLimit uom="FL">200</aixm:upperLimit><aixm:upperLimitReference>STD</aixm:upperLimitReference><aixm:lowerLimit>GND</aixm:lowerLimit><aixm:lowerLimitReference>SFC</aixm:lowerLimitReference><aixm:horizontalProjection><aixm:Surface axisLabels="Lat Long" gml:id="uuid.019e63b8-d61d-46d0-8d17-688a12908318" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">10.834 -85.550 10.733 -85.517 10.817 -85.317 10.834 -85.317 10.834 -85.550</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent></VolcanicAshCloudForecast></ashCloud></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.60110552-151d-4c7d-bb3b-daa6e62e0e18" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.9a77d1d7-346f-4999-bc7f-8f49212cf340"><gml:timePosition>2026-08-27T05:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.62d91ecf-c121-41ac-bdc3-e0d269ea5c30" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.4f92b557-94c6-4259-8be2-3bbe1bd7f2b3"><gml:timePosition>2026-08-27T11:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VA EMS NOT OBSD IN STLT IMG PSBLY DUE TO MET CLDS. VA EMS MAY BE OBSCD. WNW MVMT EXP TO SHIFT WSW BY T+6 HRS. MVMT AND HGT BASED ON VONA, AND NWP MDLS. ...BERTALAN</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.417d3191-bd9a-48f9-aad4-f9782b755a3a"><gml:timePosition indeterminatePosition="before">2026-08-27T00:15:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX26KNES261813_C_KNES_20260826181508.xml</bulletinIdentifier></MeteorologicalBulletin>