<?xml version='1.0' encoding='UTF-8'?>
<MeteorologicalBulletin gml:id="uuid.a1b10db6-d273-45fa-bcdc-cae84c6ee2dd" 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.0f2deb3e-8f7c-4369-9416-52662b219d81" 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.a9ad0a73-8932-48d4-ac49-edb7e141ae23"><gml:timePosition>2025-09-22T12:23:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.7297d96e-a955-460a-a69f-fcef6cfe4670" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.3e83798e-92d7-4d67-91d8-90253530e0ce"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.d2e991c5-8910-4df9-a938-95d7c7f773c4" xmlns="http://def.wmo.int/metce/2013"><name>REVENTADOR 352010</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.8b4f2cba-200e-4c22-9443-0cc9493d805f" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>-0.067 -77.650</gml:pos></gml:Point></position><eruptionDate>2025-09-22T12:23:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>ECUADOR</stateOrRegion><summitElevation uom="[ft_i]">11686</summitElevation><advisoryNumber>2025/921</advisoryNumber><informationSource>GOES-19. WEBCAM. NWP MODELS. VOLCAT.</informationSource><eruptionDetails>FRQT VA EMS CONT</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.c0b30f51-1330-4bb1-9565-c87432a390ae" isEstimated="false" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.ce733fc6-642c-4a46-9424-2446fe26f216"><gml:timePosition>2025-09-22T11:50:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.ccde6aa1-2462-4075-981d-808e56013c5d"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.d8db8277-00ca-4a83-ab32-510c6c188c67"><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.fa6042d0-b48d-4bd1-afb1-b73e1abcec2f" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.050 -77.650 -0.117 -77.967 -0.317 -77.850 -0.067 -77.633 -0.050 -77.650</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent><directionOfMotion uom="deg">225</directionOfMotion><speedOfMotion uom="[kn_i]">10</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.2c9c4056-3f8b-4dce-aeee-ac42ce1c8759" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.bb7a9ebb-a02c-420a-9453-7e6e336361f6"><gml:timePosition>2025-09-22T18:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.bc7daaf4-5128-4f43-afbb-6aaf6c5881d0"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.af124dfa-1925-4bf7-926f-b73650c59fc8"><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.7a5f3a21-58a4-40bd-990d-adca2932b010" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.050 -77.650 -0.133 -78.117 -0.367 -78.017 -0.067 -77.633 -0.050 -77.650</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.85982cb5-ff0e-44f6-99b2-8485a6b95d5b" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.b8c5c6e6-a852-43d5-bd1d-7f24a7beb4fb"><gml:timePosition>2025-09-23T00:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.6d52b58d-3094-428e-a83c-1475b8f26f90"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.33514c2e-6ea8-433a-93c3-5b3e4ab27e28"><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.d81b1eba-4a58-4ac2-a909-0e31501b7555" 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 -78.050 -0.217 -78.033 -0.067 -77.633 -0.050 -77.650 -0.017 -78.050</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.e30a9b2e-1bc7-4e41-a069-68d8c72fb1c7" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.b4ea6028-1aac-4299-8813-f83c9242bae5"><gml:timePosition>2025-09-23T06:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.b05f8e88-a790-443d-8394-0c8849bd5607"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.efe6cc05-46d0-493f-aecf-03ef06f1420e"><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.1a8fb026-eafe-4802-be0a-b98348797939" 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 -78.083 -0.183 -78.067 -0.083 -77.633 -0.050 -77.633 0.017 -78.083</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 ON STLT MVG SW FM SUMMIT. VOLCAT ALERT RCVD. SW MVMT EXP TO CONT THRU T+6 THEN TURN TWD THE W THRU T+18 BASED ON NWP MDLS. FL BASED ON RCNT ACTIVITY. ...EVANS</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.2fd7dfb8-fdb4-4d6b-925b-e5cb43ddaf7f"><gml:timePosition indeterminatePosition="before">2025-09-22T18:30:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX20KNES221223_C_KNES_20250922122503.xml</bulletinIdentifier></MeteorologicalBulletin>