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<MeteorologicalBulletin gml:id="uuid.61c3b093-aa21-4bbc-914b-c112426b59d5" 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.8c0a7285-0c1d-44a9-b998-7db83e1c7706" 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.5772b983-406a-4c36-896f-417ccb4a407c"><gml:timePosition>2026-07-21T02:23:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.61cd718e-3c79-4171-b000-fc80ae4b9ea4" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.ea202cd2-ab7d-40c9-ac42-7c3667e1e53d"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.d007c4df-3a7b-450b-8161-ec2860255849" xmlns="http://def.wmo.int/metce/2013"><name>SANTA MARIA 342030</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.c4e6ac2e-c549-4398-b5f6-6643f4761174" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>14.750 -91.550</gml:pos></gml:Point></position><eruptionDate>2026-07-21T02:23:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>GUATEMALA</stateOrRegion><summitElevation uom="[ft_i]">12287</summitElevation><advisoryNumber>2026/400</advisoryNumber><informationSource>GOES-19. NWP MODELS.</informationSource><eruptionDetails>VA EMS PSBL</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.e85db180-9733-4cbb-9864-d9de9b9bcca6" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.1d76a2ad-f79a-47c6-aa97-093a61bd07fe"><gml:timePosition>2026-08-20T01:50:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.a647077b-e67a-43eb-98bf-518e0c045f5a"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.5b2fba5b-e80f-4e46-a183-fa29482d87c4"><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.2756e93c-86ea-4556-970a-b8042172052b" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.767 -91.550 14.750 -91.717 14.683 -91.683 14.733 -91.533 14.767 -91.550</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]">15</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.0fd895dd-4958-4931-94c1-be831fdfe277" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.f2848e58-7184-498a-a5fa-9cacf36ec48d"><gml:timePosition>2026-08-20T08:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.875d478e-4332-4223-bc6a-342a1f93c1c6"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.49a26aa1-4deb-4a72-a11c-080230b4caa3"><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.ddc1aa0d-0a2d-4d0d-80bd-9b8f8abd99c6" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.767 -91.550 14.733 -91.817 14.650 -91.800 14.733 -91.533 14.767 -91.550</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.6c97ec12-0fff-443c-9a5e-f66c948e785d" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.5e200f98-ff17-481d-930c-fbfcfd675c2e"><gml:timePosition>2026-08-20T14:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.0d3bbe7f-dc3f-4205-887a-2440fee63a4b"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.56ecf4ba-c35a-4226-9768-b66703815cc2"><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.4812c138-2ba6-4ddc-aa90-4d5706ce67a5" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">14.767 -91.533 14.717 -91.817 14.633 -91.783 14.733 -91.533 14.767 -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.dc7c67b7-de03-45ec-834a-8900819930ab" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.e91d17bc-ac4c-48ec-9faf-1efa428fba4c"><gml:timePosition>2026-08-20T20:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VA EMS NOT OBS IN STLT IMG DUE TO WX CLD CVR. VA EMS PSBLY CONTNG BASED ON PREV ACTIVITY. NWP MDL GUIDANCE FCSTS GEN SW MOVMT THRU T+12. ...MONAGHAN</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.e3b1209a-c4ce-4395-9476-26428b256c51"><gml:timePosition indeterminatePosition="before">2026-07-21T08:30:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX21KNES210223_C_KNES_20260721022359.xml</bulletinIdentifier></MeteorologicalBulletin>