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<MeteorologicalBulletin gml:id="uuid.b2d4a287-1589-4042-a296-959e298bba7e" 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.e25298fc-5be9-416d-9337-743101df3888" 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.699f410e-edf2-42a7-a6ee-4b21c1298d08"><gml:timePosition>2025-12-14T12:40:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.38d1097e-315a-478d-b31f-beaf694193fb" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.a1b2e2a0-6c75-4acf-a677-fc6135df122e"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.09d4b970-443a-4691-ad19-c90e87fcd8ac" xmlns="http://def.wmo.int/metce/2013"><name>SANTA MARIA 342030</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.edc9e3f7-4568-44ef-978a-ea5d9e1c3a68" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>14.750 -91.550</gml:pos></gml:Point></position><eruptionDate>2025-12-14T12:40:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>GUATEMALA</stateOrRegion><summitElevation uom="[ft_i]">12287</summitElevation><advisoryNumber>2025/859</advisoryNumber><informationSource>GOES-19. WEBCAM. NWP MODELS.</informationSource><eruptionDetails>VA OBS IN WEBCAM</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.b3dc9d41-6cc6-42d5-a607-2b867eb6e3ff" isEstimated="false" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.92575171-5e68-45da-aff6-f9fc56eb5d60"><gml:timePosition>2025-12-14T12:10:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.2aef5718-fe96-4077-9016-5b91f80ce5e8"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.82462e8d-6a5e-4e4c-bd7b-9898615828be"><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.7d524f5c-fd1a-4bea-8678-65e7489e29d2" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.783 -91.717 14.600 -91.583 14.750 -91.533 14.767 -91.533 14.783 -91.717</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]">5</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.7bf34e48-1580-45f1-aff0-2e63806fc730" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.13800a4f-0bbb-4252-8915-6eda7b1f9233"><gml:timePosition>2025-12-14T18:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.fa8dcf3b-cdc3-4d8f-8489-c1e8d1e23a1c"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.91ea71d8-a192-484c-8a7e-0b3ee5951515"><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.79402866-c29d-4fc0-a83b-007392316a86" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.783 -91.533 14.733 -91.834 14.517 -91.683 14.750 -91.517 14.783 -91.533</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.f0b1bb26-9a7d-4438-8d8b-808fb8de6597" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.438a38f3-d677-48bc-86fd-d386ccb2df69"><gml:timePosition>2025-12-15T00:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.44bd8427-4818-41bf-aecd-7497cb9d2b20" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.9edab7ea-8f72-475b-a6c8-ed0b0610a18d"><gml:timePosition>2025-12-15T06:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>NEW VA EM OBS IN WEBCAM BUT NOT SEEN IN STLT. VA FCST THRU T+6 HRS BASED ON NWP MDL GUIDANCE. ...COVERDALE</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.ec902730-6db8-45a8-b55d-0f5952f529ff"><gml:timePosition indeterminatePosition="before">2025-12-14T18:45:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX26KNES141240_C_KNES_20251214124057.xml</bulletinIdentifier></MeteorologicalBulletin>