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<MeteorologicalBulletin gml:id="uuid.a2ca8586-7d6a-49a3-aa28-0d634fa090e5" 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.27fa670d-9f3c-41e3-86a2-84fdcbbef6e3" 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.f1c203c8-9eae-4a17-a6f7-9a173475c79a"><gml:timePosition>2025-04-28T23:41:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.32c5faac-7f88-497f-9b58-0173d06b4a75" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.1fcb9dde-8246-40b5-8e85-7811c9298b6e"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.12a11469-e65c-4ed2-b2cb-224c669ba3c2" xmlns="http://def.wmo.int/metce/2013"><name>POAS 345040</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.72cc0edf-9cd2-4082-8176-80a96b6b5127" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>10.183 -84.217</gml:pos></gml:Point></position><eruptionDate>2025-04-28T23:41:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>COSTA_RICA</stateOrRegion><summitElevation uom="[ft_i]">8848</summitElevation><advisoryNumber>2025/074</advisoryNumber><informationSource>GOES-19. WEBCAM. NWP MODELS.</informationSource><eruptionDetails>ONGOING LGT VA EMS</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.1ecb5209-c5d6-4c40-9951-ffc1aeafc5db" isEstimated="false" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.81fe47c4-15d5-40f0-889a-c57a0e5b55a9"><gml:timePosition>2025-04-28T23:10:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.af3cb25f-dbf7-4b83-9368-2a8bd40adf9d"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.995295eb-f701-4bb8-847f-1259a8ebd31c"><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.f3d82b76-3df3-4946-b059-82063785f6b1" srsDimension="2" 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gml:id="uuid.00fbd3ea-a863-4ce4-b410-b9b6bc51adca"><gml:timePosition>2025-04-29T11:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.3043b106-7757-43b4-a8a5-62b3020522a5"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.88fda530-bcbd-46ed-a90d-503da98263bd"><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.c6484437-1c0f-4456-8e4c-2132ee39bb97" 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 -84.367 10.133 -84.333 10.183 -84.233 10.200 -84.233 10.217 -84.367</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.e997f1ff-f727-4857-9fc3-b17b0f04fe2b" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.ca6c5d36-e437-4184-9156-bd8e45c6cbf3"><gml:timePosition>2025-04-29T17:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.aef2aab4-22d4-4545-a608-c50fdb12d5f5"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.ead7c89e-ed2e-413f-8e24-aaff7df8b579"><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.6822d0f8-4d1f-40d1-ac5a-16907180ce1a" 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 -84.333 10.167 -84.333 10.183 -84.217 10.200 -84.217 10.250 -84.333</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent></VolcanicAshCloudForecast></ashCloud></VolcanicAshForecastConditions></forecast><remarks>CONS LGT VA EMS CRNTLY OBS IN WEBCAM. STLT IMAGERY OBSCD BY WX CLDS. VA FCST THRU T+18 HRS BASED ON NWP MDL GUIDANCE. ...COVERDALE</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.530dfad5-1c3b-4c75-ba17-c0caace8a2c6"><gml:timePosition indeterminatePosition="before">2025-04-29T05:45:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX25KNES282341_C_KNES_20250428234228.xml</bulletinIdentifier></MeteorologicalBulletin>