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<MeteorologicalBulletin gml:id="uuid.c3de7f9a-ff7a-4432-b729-e32393296fd1" 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.eb5ae513-d81f-4a9c-a8c6-2402639f8384" 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.430e5ec6-6b66-4474-aef2-c30f0e5629e7"><gml:timePosition>2026-08-12T08:09:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.9d3ae975-65fb-4386-956e-62d79795712b" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.a38372c7-5b72-47be-a465-fbf2fdc116d1"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.ea33c4e9-056c-4f5f-89e6-156463962925" xmlns="http://def.wmo.int/metce/2013"><name>SANTA MARIA 342030</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.ad2b5a2c-ce54-4807-b1c5-f17dbb059f19" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>14.750 -91.550</gml:pos></gml:Point></position><eruptionDate>2026-08-12T08:09:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>GUATEMALA</stateOrRegion><summitElevation uom="[ft_i]">12287</summitElevation><advisoryNumber>2026/470</advisoryNumber><informationSource>GOES-19. WEBCAM. NWP MODELS.</informationSource><eruptionDetails>VA EMS ONGOING</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.e61fb5f1-73f4-481f-b622-e01fb3c57a17" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.61535b36-d6d1-4843-9d41-37986da38411"><gml:timePosition>2026-08-12T07:40:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.abf2c4a3-6c2d-470d-b312-5495bc82a08d"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.4608d99b-08de-4a13-b116-8dcdaf68b9df"><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.ef9ea0ca-9694-4979-8117-536efb0577a7" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.917 -91.717 14.817 -91.750 14.717 -91.567 14.767 -91.533 14.917 -91.717</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent><directionOfMotion uom="deg">315</directionOfMotion><speedOfMotion uom="[kn_i]">10</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.cd16fca3-fff9-40b3-a235-95d092d884e1" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.0a47af02-2aa5-45eb-ad39-3458bbd7041b"><gml:timePosition>2026-08-12T13:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.208c8b5e-92d4-442d-94cc-05d2d0e36ce5"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.6f46fb3b-5833-43dc-a1da-15f01f006515"><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.232bd818-6996-4bb4-b818-ca8e173ae01c" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.984 -91.834 14.884 -91.884 14.717 -91.550 14.767 -91.533 14.984 -91.834</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.470d96f8-1960-4b31-a906-b4a9469a32a0" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.0348e080-8b72-4e33-8873-019a4be6cb8a"><gml:timePosition>2026-08-12T19:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.1b663fa6-9bc2-4526-8612-64163867f471"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.31daf2b5-b362-47d1-897e-3c24461d9e95"><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.dfd4bea6-8e95-4606-83e4-4be639d93de3" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.834 -91.767 14.733 -91.767 14.717 -91.533 14.783 -91.533 14.834 -91.767</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.b36c7b1a-54cb-4227-9adf-3f0e52e06529" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.15b175be-c432-40f8-b777-39f3bd987554"><gml:timePosition>2026-08-13T01:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.1679bb6d-160d-439a-bccd-1009854ced8f"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.b4592178-a576-4f49-b2c9-74ca921d93ce"><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.58344ec5-663b-477d-a30c-09efe3375b17" 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 -91.600 14.733 -91.650 14.633 -91.483 14.733 -91.467 14.817 -91.600</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent></VolcanicAshCloudForecast></ashCloud></VolcanicAshForecastConditions></forecast><remarks>VA EMS NOT OBS IN STLT IMG DUE TO MET CLD CVR. ONGOING VA EMS SEEN IN WEBCAM. NWP MDL GUIDANCE FCSTS GEN NW TO WNW MOVMT THRU T+12, THEN LGT AND VARIABLE MOVMT BY T+18. ...MONAGHAN</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.23d52b73-8137-4e36-8046-fbd7433ed4b8"><gml:timePosition indeterminatePosition="before">2026-08-12T14:15:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX21KNES120809_C_KNES_20260812081017.xml</bulletinIdentifier></MeteorologicalBulletin>