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<MeteorologicalBulletin gml:id="uuid.90e4e3e6-5bee-4c40-bd60-65b285b7d8a4" 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.ce1dd90a-102e-4d02-b560-1e799439b6be" 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.f01c9cee-f673-4dec-9533-29689093cbce"><gml:timePosition>2026-08-11T18:53:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.32f1035a-5090-4136-8b0a-d968718c091f" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.5a3bb460-d53b-4211-821c-bd602ac08fff"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.ea74b40a-ff49-4dbc-899e-b4c2c7dd7496" xmlns="http://def.wmo.int/metce/2013"><name>REVENTADOR 352010</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.4411cb13-e85d-4005-ad0c-e6aa4ac917e4" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>-0.067 -77.650</gml:pos></gml:Point></position><eruptionDate>2026-08-11T18:53:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>ECUADOR</stateOrRegion><summitElevation uom="[ft_i]">11686</summitElevation><advisoryNumber>2026/810</advisoryNumber><informationSource>GOES-19. NWP MODELS.</informationSource><eruptionDetails>PSBL CONTG VA EMS.</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.39145ae5-517c-4235-a97d-cac0e8a3a0e3" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.49c0123a-0483-4d44-bf7c-66e282fd29aa"><gml:timePosition>2026-08-11T18:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.bf947371-6b26-4b8a-82ce-21ce2107ef92"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.63a867f1-1d59-4ead-b690-43a4ff493a3f"><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.edf85132-9bf2-4928-9a88-85526755d602" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">0.117 -77.984 0.017 -78.017 -0.083 -77.667 -0.067 -77.650 0.117 -77.984</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]">20</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.9d1c365b-7c42-4a9a-b223-7fefc66d503d" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.c2f0f3c8-27c5-458e-bcdd-cfea89657c12"><gml:timePosition>2026-08-12T00:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.59270a19-fd4b-4126-b1d7-7c719645f8b3"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.c68dd68a-8099-4314-8960-f0e74ec43595"><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.2344d172-45bb-4b91-a7a4-e6bd86a3a76f" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">0.150 -78.000 0.017 -78.033 -0.083 -77.650 -0.067 -77.633 0.150 -78.000</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.95cdf493-0259-4c20-ad6b-e018bfe07ac9" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.65c816ff-a7d8-4daa-bd56-9fad68cc0869"><gml:timePosition>2026-08-12T06:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.255c675a-a99b-4b7e-a9f9-e071ab6ac4e6"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.c1344130-16c7-4ac5-bd1e-ab570657f602"><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.5c6b0eea-f36f-4abd-a092-722f3f786e89" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">0.167 -78.017 0.017 -78.067 -0.083 -77.667 -0.050 -77.633 0.167 -78.017</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.2adff0fa-3cc6-4f88-9df5-fe683f099b04" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.9a8c50cd-1cb5-451e-be9c-c8d633fe6607"><gml:timePosition>2026-08-12T12:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VA NOT OBS IN SAT OR WEBCAM WITH MET CLD OBSCN OF SUMMIT AREA. CONTG VA EMS PSBL BASED ON RECENT ACT. OBS VA AREA ESTD FM NWP MDLS AND PREV VAA. LTLCG FCST IN FL MVMT THRU T+12 HRS. ...CLARK</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.1bc23462-631d-4bdd-8745-c1402f4406e7"><gml:timePosition indeterminatePosition="before">2026-08-12T01:00:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX22KNES111853_C_KNES_20260811185411.xml</bulletinIdentifier></MeteorologicalBulletin>