<?xml version='1.0' encoding='UTF-8'?>
<MeteorologicalBulletin gml:id="uuid.a0ff130f-f581-4059-96d7-e7047ccdc0cc" 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.1c9edb03-82d1-4c63-9eac-4266ad3b10af" 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.5f935d38-1f18-4c0f-b385-c3e39d43d6f8"><gml:timePosition>2026-05-17T19:53:00Z</gml:timePosition></gml:TimeInstant></issueTime><issuingVolcanicAshAdvisoryCentre><Unit gml:id="uuid.0159c628-baed-4fbf-8839-f1da393b75b5" xmlns="http://www.aixm.aero/schema/5.1.1"><timeSlice><UnitTimeSlice gml:id="uuid.3738e79e-482e-45fe-a82c-1cc91c862d09"><gml:validTime /><interpretation>SNAPSHOT</interpretation><name>WASHINGTON</name><type>OTHER:VAAC</type></UnitTimeSlice></timeSlice></Unit></issuingVolcanicAshAdvisoryCentre><volcano><EruptingVolcano gml:id="uuid.d98e2138-f441-4c20-ba78-ff9af5d1dca4" xmlns="http://def.wmo.int/metce/2013"><name>SANTA MARIA 342030</name><position><gml:Point axisLabels="Lat Long" gml:id="uuid.0992563a-d176-429d-8979-4b50cf637508" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>14.750 -91.550</gml:pos></gml:Point></position><eruptionDate>2026-05-17T19:53:00Z</eruptionDate></EruptingVolcano></volcano><stateOrRegion>GUATEMALA</stateOrRegion><summitElevation uom="[ft_i]">12287</summitElevation><advisoryNumber>2026/251</advisoryNumber><informationSource>GOES-19. NWP MODELS.</informationSource><eruptionDetails>OCNL VA EMS</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.d2c75839-4871-4d33-a0e7-51956b763a36" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.6b228e3c-6828-446a-b68b-b63e1f269fc2"><gml:timePosition>2026-05-17T19:20:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.7f45bc1f-2a06-4a70-936a-0b378b19f0c1"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.a35d27fa-2240-42ef-bb85-50e6ce8abe93"><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.06983048-36d9-47f2-b9d9-58f38c389d86" 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 -91.717 14.767 -91.733 14.733 -91.533 14.767 -91.533 14.834 -91.717</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]">5</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.36939f41-4501-4eed-9dde-db5b97f0b0c4" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.c8df270f-4d9d-47f4-b3e9-99d9ad7929d9"><gml:timePosition>2026-05-18T01:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.51cd5ab3-c8f6-4002-8fdc-c817b9095e12"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.c4b07c0f-dc9f-4a01-813d-532d6bd14bac"><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.eb2ef56c-2936-4827-9784-c0379212bbc6" 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 14.717 -91.717 14.633 -91.683 14.750 -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.60c0aad5-595b-4e02-ad41-423982ecfe56" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.87c02252-6753-4d9c-bb15-1b358a9aaa95"><gml:timePosition>2026-05-18T07:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.a19ce86e-f3cf-4a34-9d95-9273b02c2567"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.c61b00ae-ff3c-422d-b76b-b35c9ad3c49e"><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.d908306e-72aa-4bc5-b5b3-c806717488d9" 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 14.783 -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.85b0458d-0688-44a4-8a46-cd5307e3e7b5" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.8072862b-476f-42da-adae-702e11352e29"><gml:timePosition>2026-05-18T13:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VA NOT DETECTED IN STLT IMG. VA EMS MAY CONT BASED ON PREV ACT. MDL GUIDANCE SUGGESTS WNW MVMT TO SHIFT SW BY T+6. ...GATLING</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.2e733b16-30eb-4b5d-bb68-770b18bd5886"><gml:timePosition indeterminatePosition="before">2026-05-18T02:00:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX21KNES171953_C_KNES_20260517195441.xml</bulletinIdentifier></MeteorologicalBulletin>