<?xml version='1.0' encoding='UTF-8'?>
<MeteorologicalBulletin gml:id="uuid.61000a2c-07f3-495d-a42b-b49a30326966" 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.6cc8c57d-7a39-481a-b2d7-16f573a97101" 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.0f0d2459-1a23-4897-bef3-b7e89e78613e"><gml:timePosition>2025-04-28T18:04:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.cb1399a5-bb7f-4d46-86a5-404f711d0bef" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.955d7194-7ac4-4e26-bc73-64258ac8f226"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.dc548f59-edf5-4b05-8978-55953937374e" xmlns="http://def.wmo.int/metce/2013"><name>POAS 345040</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.a5b6d2dc-6d8f-4869-b271-193d37351c9b" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>10.183 -84.217</gml:pos></gml:Point></position><eruptionDate>2025-04-28T18:04:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>COSTA_RICA</stateOrRegion><summitElevation uom="[ft_i]">8848</summitElevation><advisoryNumber>2025/073</advisoryNumber><informationSource>GOES-19. WEBCAM. NWP MODELS.</informationSource><eruptionDetails>VA EMS LIKELY</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.76b90bcc-ed35-4713-bb72-4f342afe9c13" isEstimated="false" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.6e22c626-8824-47a7-a267-2559fbac8636"><gml:timePosition>2025-04-28T17:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.a47a7dcb-3483-4cf6-8e3d-e3dea26f9e53"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.79d732ea-e3b7-4a2b-964b-93cc8821f975"><aixm:upperLimit uom="FL">100</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.af657149-dd53-4edc-8bb6-66adb7266148" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">10.267 -84.317 10.183 -84.317 10.183 -84.217 10.200 -84.217 10.267 -84.317</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]">5</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.6e7d1d08-df40-488d-8678-6c8e353336e0" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.7e559910-db24-4f35-a6fe-4bffdf133bb1"><gml:timePosition>2025-04-28T23:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.2037918e-ade3-4ce1-b4a8-dd7f178fb0ac"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.8864c106-dc4a-46c8-b790-357b7c3a0ea2"><aixm:upperLimit uom="FL">100</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.d051174a-7d60-4b7b-97bb-f56cb3556824" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">10.217 -84.217 10.183 -84.383 10.067 -84.317 10.183 -84.217 10.217 -84.217</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.61cffc1d-8473-4e1a-870d-e9f11238fc2f" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.b6909935-782a-46d3-a1da-588045bdafda"><gml:timePosition>2025-04-29T05:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.855e1ec8-b05b-444b-ae4b-9f6b5a2c95c7"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.c776bf47-b00c-4f12-a746-216faedd79b6"><aixm:upperLimit uom="FL">100</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.b1472a13-c36d-4558-8f3d-8580e254f59d" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">10.233 -84.383 10.117 -84.367 10.183 -84.217 10.200 -84.217 10.233 -84.383</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.381a8aea-a107-4465-86c7-3a26b45c3add" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.c4aa639a-b0ea-4b4c-b111-04ef31f774c3"><gml:timePosition>2025-04-29T11:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.e4144788-4707-4335-8e53-3f6cf2ce25bb"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.f94d1bcc-9dee-4581-8c13-3583d5248ce8"><aixm:upperLimit uom="FL">100</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.00d6bfad-fb6c-433c-a7a5-800dfa15e0b6" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">10.250 -84.417 10.117 -84.400 10.200 -84.217 10.217 -84.217 10.250 -84.417</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent></VolcanicAshCloudForecast></ashCloud></VolcanicAshForecastConditions></forecast><remarks>VA NOT CRNTLY OBS IN STLT IMAGERY OR WEBCAM BUT FRQT VA OBS IN WEBCAM DURING BRKS IN WX CLDS. VA FCST THRU T+18 HRS BASED ON NWP MDLS. ...COVERDALE</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.ef2d3587-c374-4a69-b565-303380671c62"><gml:timePosition indeterminatePosition="before">2025-04-29T00:00:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX25KNES281804_C_KNES_20250428180547.xml</bulletinIdentifier></MeteorologicalBulletin>