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<MeteorologicalBulletin gml:id="uuid.34548626-d4c4-4810-b238-99e00e148628" 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.34e4d0d2-bc7c-4a1e-87f0-38a0994724d2" 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.a486abc5-3c6b-45d8-ab76-2debe5f7aa2b"><gml:timePosition>2025-08-20T09:55:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.d5f2e056-279d-4aca-9902-20974c101e1a" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.3c72ede8-484c-4eba-abd4-deb13da3dc5d"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.d7430423-459f-49f5-b4a8-d56e4317ca2f" xmlns="http://def.wmo.int/metce/2013"><name>REVENTADOR 352010</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.8a4546f1-f3be-4164-b0c7-2fd388bbb41d" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>-0.067 -77.650</gml:pos></gml:Point></position><eruptionDate>2025-08-20T09:55:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>ECUADOR</stateOrRegion><summitElevation uom="[ft_i]">11686</summitElevation><advisoryNumber>2025/793</advisoryNumber><informationSource>GOES-19. WEBCAM. NWP MODELS.</informationSource><eruptionDetails>VA EMS CONT</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.b688e4fa-7396-4c7f-8205-a5697de0b400" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.24b2eb4e-59f7-4cfe-8fcd-41ac7da6c1b8"><gml:timePosition>2025-08-20T09:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.398c7061-e89c-4d0b-b46a-596beaf3360f"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.303e7057-9e66-4193-b573-9f5182edd840"><aixm:upperLimit uom="FL">140</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.3c766b18-d37a-4ad6-b779-399e54430d2b" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.033 -77.917 -0.133 -77.917 -0.083 -77.667 -0.067 -77.650 -0.033 -77.917</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent><directionOfMotion uom="deg">270</directionOfMotion><speedOfMotion uom="[kn_i]">10</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.9afd6bb5-75b2-4959-99dc-a1bd03118b3f" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.48c31441-31c4-444f-868e-6d90bfe43eeb"><gml:timePosition>2025-08-20T15:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.11f80625-928f-475a-8386-e44869bfc38d"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.39c50572-53ab-4a50-8d35-6e4577dd0a01"><aixm:upperLimit uom="FL">140</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.e493d188-3370-423d-ada7-ad6d30b0f4a6" 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 -78.000 -0.150 -77.984 -0.083 -77.650 -0.067 -77.650 -0.017 -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.20a0526e-f28b-4674-9fbe-f76e4471d29a" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.4b56c86c-8efa-4e93-8d80-f5204d27039a"><gml:timePosition>2025-08-20T21:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.5cab03fd-a9fd-4c7a-9de7-e19afc16387a"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.d521357b-24fe-4aef-85b8-5c39f79c80a1"><aixm:upperLimit uom="FL">140</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.4ed3746c-278b-4d68-b15b-89c5fca0ca8f" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.033 -78.000 -0.150 -77.984 -0.083 -77.650 -0.067 -77.667 -0.033 -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.6f65fc86-54e6-4de1-be8a-ef7319ab7816" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.615ef94d-6852-4dcc-bb77-ea724014b4d6"><gml:timePosition>2025-08-21T03:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.cc261188-48bd-4295-a6e6-88b7865b09a9"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.6286f7b3-fafe-49f0-8e91-4668101b15b7"><aixm:upperLimit uom="FL">140</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.23cf96b2-f492-456d-a615-efd030299dd4" 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 -78.000 -0.150 -77.984 -0.083 -77.650 -0.067 -77.650 -0.017 -78.000</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent></VolcanicAshCloudForecast></ashCloud></VolcanicAshForecastConditions></forecast><remarks>VA EMS OBS IN WEBCAM BUT NOT VISIBLE IN STLT IMG DUE TO MET CLD CVR. W MVMT EXP THRU T+18. FCST BASED ON STLT AND MDL WINDS. ...GATLING</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.e7cdec04-4ed2-427a-98a6-aa0184ab23ab"><gml:timePosition indeterminatePosition="before">2025-08-20T16:00:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX20KNES200955_C_KNES_20250820095558.xml</bulletinIdentifier></MeteorologicalBulletin>