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<MeteorologicalBulletin gml:id="uuid.b06e334c-8022-4c68-9f1f-e2971b7f8248" 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.39194ccc-b82a-48bb-9bbd-371d85b9f6da" 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.cb56b942-6ae3-4caf-b21d-ea046eb7d177"><gml:timePosition>2026-05-17T20:57:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.158ed1b0-34b3-45c0-9f9d-be0203e672ba" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.4696aefc-b400-4b6b-97ef-29ccb093f5ff"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.dbc382d9-b97c-461c-9dbe-cfb9cb7a7a41" xmlns="http://def.wmo.int/metce/2013"><name>REVENTADOR 352010</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.2719630f-0fbf-4cd6-a3c1-eeb527566aae" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>-0.083 -77.650</gml:pos></gml:Point></position><eruptionDate>2026-05-17T20:57:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>ECUADOR</stateOrRegion><summitElevation uom="[ft_i]">11686</summitElevation><advisoryNumber>2026/488</advisoryNumber><informationSource>GOES-19. NWP MODELS.</informationSource><eruptionDetails>OCNL VA EMS</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.a0c2502c-41a6-4f49-bfc1-83b798252953" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.f40046fb-e469-4468-8ab8-86616a10aff7"><gml:timePosition>2026-05-17T20:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.29c42ecf-ee09-44a2-b91d-a385809abcd8"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.bbfc6e02-3895-4ec5-a454-0c47dec85786"><aixm:upperLimit uom="FL">150</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.533d2bc0-32a5-4c03-aa64-6cbc572cdbc3" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">0.017 -77.783 -0.017 -77.817 -0.083 -77.650 -0.067 -77.650 0.017 -77.783</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]">5</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.eceffaf4-94c8-4fd9-ae62-2ca92dfbbb7e" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.0c40169c-63fd-48cd-b9a7-9c34d2072b7c"><gml:timePosition>2026-05-18T02:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.22285d48-6139-4f8f-bf3a-de335bb392c2"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.d01f3ca5-ec0d-4cc8-90bb-eb2b71688c87"><aixm:upperLimit uom="FL">150</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.c2b3e592-d414-456a-ad04-f1b8525b101f" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">0.000 -77.800 -0.033 -77.817 -0.083 -77.667 -0.067 -77.650 0.000 -77.800</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.0ba7fd57-2006-4080-b908-2caca49a6ef6" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.4c066ba4-5de1-4a0c-8593-30834e3652d0"><gml:timePosition>2026-05-18T08:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.cb6060d2-bd58-46fa-8588-8d272d93fd63" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.7c7f467e-e35f-4676-8fde-120851b40fe7"><gml:timePosition>2026-05-18T14:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VA NOT VISIBLE IN STLT IMG DUE TO MET CLD CVR. VA EMS MAY CONT. WNW MVMT EXP THRU T+6. FCST BASED ON MDL GUIDANCE. ...GATLING</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.be3e0ec8-9fb5-44b8-917a-8e6606698150"><gml:timePosition indeterminatePosition="before">2026-05-18T03:00:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX25KNES172057_C_KNES_20260517205803.xml</bulletinIdentifier></MeteorologicalBulletin>