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<MeteorologicalBulletin gml:id="uuid.8d1ce59e-d8eb-4a9b-88e8-8edc7dc86fa2" 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.15191fab-4588-4d37-a29f-99d88505575e" 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.b9cef3e6-0133-45a9-b92b-649a977810d7"><gml:timePosition>2025-09-04T01:15:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.3ac587a6-78ec-48a0-8674-1830b11c12b5" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.36685007-f76f-4016-905c-aa145e2f31bc"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.a0f3fcf8-99b0-47ca-9387-dcc064d3e612" xmlns="http://def.wmo.int/metce/2013"><name>SANTA MARIA 342030</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.29cc37e8-dcd3-439a-a133-c8f40a9e9508" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>14.750 -91.550</gml:pos></gml:Point></position><eruptionDate>2025-09-04T01:15:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>GUATEMALA</stateOrRegion><summitElevation uom="[ft_i]">12287</summitElevation><advisoryNumber>2025/621</advisoryNumber><informationSource>GOES-19. NWP MODELS.</informationSource><eruptionDetails>VA EMS ONGOING</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.ea6caf42-0fd6-4518-9505-f926abea53a3" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.f136d158-3e35-49db-80bc-f9351a1197cb"><gml:timePosition>2025-09-04T00:50:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.b3cefb11-d4ce-4125-8a53-0f94700b21d0"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.770ad6f3-d62a-4164-83e9-ef823a7fae56"><aixm:upperLimit uom="FL">130</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.a9976782-b52f-4af2-b794-e9ba2317f94d" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.817 -91.683 14.750 -91.683 14.767 -91.550 14.767 -91.533 14.817 -91.683</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]">10</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.4e30876e-947e-4757-b064-515284bc6f6e" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.656a3382-bdc6-4002-86ab-8f84b0b170a7"><gml:timePosition>2025-09-04T07:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.98d75f46-a385-4780-afdf-950db989ee32"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.442dd710-7698-4c3d-9efb-bc222fcab3bd"><aixm:upperLimit uom="FL">130</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.c93dce01-3bed-4354-822d-0b2326d6f5a7" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.867 -91.717 14.800 -91.733 14.750 -91.533 14.767 -91.533 14.867 -91.717</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.6411d835-9119-4032-86b8-bb268cec11f5" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.e05495fa-84a5-406a-bdc1-5ed1d3577efe"><gml:timePosition>2025-09-04T13:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.a437bc75-0eb4-4078-bb83-09488f98047b" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.ddfce6c1-29ff-4836-b3df-6930a6a61bd9"><gml:timePosition>2025-09-04T19:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VA NOT DETECTED ON STLT DUE TO THICK WX CLDS IN SUMMIT AREA. VA EMS LIKELY CONTINUE GIVEN RECENT ACTVTY. MDL WINDS AT FL FCST TO VEER NXT 6 HR BECMG MORE FM THE ESE. ...KONON</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.c6f73b7f-8188-4983-be2e-4b4989b97cac"><gml:timePosition indeterminatePosition="before">2025-09-04T07:15:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX26KNES040115_C_KNES_20250904011618.xml</bulletinIdentifier></MeteorologicalBulletin>