<?xml version='1.0' encoding='UTF-8'?>
<MeteorologicalBulletin gml:id="uuid.25ab3eac-8e86-488b-85de-63ba8fbd2638" 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.31110a67-f100-4639-962b-12d76534ddb0" 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.0a6394c6-3cf3-48a0-9f52-b05ffe30d1a6"><gml:timePosition>2025-04-18T05:29:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.623c40bc-8972-4f4a-83e4-cddd80b0b4c0" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.ff7c9273-802a-4a43-a508-7c688b55cdf1"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.0eb3bec4-6620-4037-ad8f-5bc0153cd3db" xmlns="http://def.wmo.int/metce/2013"><name>POAS 345040</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.8cab791a-ccfe-41ff-892f-0307dd3a68e0" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>10.183 -84.217</gml:pos></gml:Point></position><eruptionDate>2025-04-18T05:29:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>COSTA_RICA</stateOrRegion><summitElevation uom="[ft_i]">8848</summitElevation><advisoryNumber>2025/038</advisoryNumber><informationSource>GOES-19. WEBCAM. NWP MODELS.</informationSource><eruptionDetails>VA EMS LIKELY</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.1134c285-a2d5-4613-a262-d428c768ec27" isEstimated="false" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.d3436468-82bf-48f1-9796-40080e342a90"><gml:timePosition>2025-04-18T04:50:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.6e6da4f7-acba-4246-b0be-053f84251438"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.cc75064f-d360-465b-a893-be0b2c933c15"><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.f566ad60-46ad-4048-b295-ca26ac7f4aa6" 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 10.217 -84.350 10.117 -84.300 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><directionOfMotion uom="deg">270</directionOfMotion><speedOfMotion uom="[kn_i]">20</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.92db6025-6c47-4305-ade4-8634a8ef4ed1" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.d4d84abe-b320-4906-99bc-92cda7bcc4c3"><gml:timePosition>2025-04-18T11:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.e8003e5e-eb99-425d-9431-9f876de796b2"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.7bc86333-3bf6-48d6-9172-cb9c63f88b9f"><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.a3a7a09a-beaf-4a2b-b36e-972dddf63bc2" 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 -84.433 10.083 -84.383 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.1566d1ac-3ab2-4003-8630-88f0cf138388" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.5f672068-60cb-44e2-94af-97e5094e2938"><gml:timePosition>2025-04-18T17:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.695370ae-b459-450f-adc6-a6e55878bee0"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.0bd59758-c5fa-4b71-a5e5-d85c96ba2b5c"><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.4a174144-6b3a-471e-adc1-376786f7c984" 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 -84.383 10.117 -84.367 10.183 -84.217 10.200 -84.217 10.217 -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.33088864-b9a0-450f-ba53-ab1522f5fd82" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.6072399a-3daf-4390-8b11-b28767296a71"><gml:timePosition>2025-04-18T23:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.99d8a2ae-01ea-48a3-a13a-e96775b5b20c"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.7a2076ba-661d-4cdf-a808-43ebfd442561"><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.ff554ab7-e53f-4d4c-b1f8-16e6b2b4e78c" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">10.200 -84.217 10.183 -84.383 10.083 -84.333 10.183 -84.217 10.200 -84.217</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent></VolcanicAshCloudForecast></ashCloud></VolcanicAshForecastConditions></forecast><remarks>ONGOING STEAM/GAS EMS WITH SOME VA LIKELY MIXED IN SEEN IN WEBCAM. STLT IMAGERY OBSCD BY WX CLDS. VA FCST THRU T+18 HRS BASED ON NWP MDLS. ...COVERDALE</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.9ba876b0-a14a-4e02-9c07-d6ab6c567782"><gml:timePosition indeterminatePosition="before">2025-04-18T11:30:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX25KNES180529_C_KNES_20250418053031.xml</bulletinIdentifier></MeteorologicalBulletin>