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NWP MODELS.</informationSource><eruptionDetails>VA EM OBS</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.95b8df15-cc24-40d5-9e4b-3045ec9ea740" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.179c09b5-2291-4e5e-9e5d-a88be4e9d1db"><gml:timePosition>2026-04-01T20:20:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.625a9d53-ca36-4198-85aa-3ab50a9a6742"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.41b646dd-14bb-43d2-a30b-32ecfe8e78b7"><aixm:upperLimit uom="FL">170</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.257ce96d-99f3-4c63-830e-ac62e09850bf" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.050 -77.667 -0.100 -77.683 -0.367 -77.583 -0.117 -77.350 -0.050 -77.667</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent><directionOfMotion uom="deg">135</directionOfMotion><speedOfMotion uom="[kn_i]">5</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.ccfcf702-124b-480f-bb15-a6297f453b18" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.8c88cd83-42a9-42ca-80ee-881274c57461"><gml:timePosition>2026-04-02T02:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.c8102d76-882f-4ac1-b0dd-f1e5d8d1ec54"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.a287325f-0655-410f-9fa3-257ed6a37e4f"><aixm:upperLimit uom="FL">170</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.fa73b0eb-6e6d-4449-bd65-cd520a506832" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.033 -77.633 -0.083 -77.683 -0.500 -77.683 -0.233 -77.250 -0.033 -77.633</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.3ec86759-6912-40b7-8789-0da8d551dffe" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.1a011072-e6bb-412c-89f2-d2fc7027c4e2"><gml:timePosition>2026-04-02T08:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.4dbadcdd-4014-4caa-8f08-0cc481ac4826"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.0a443f72-2b31-48e5-bc9b-848e6f0c43da"><aixm:upperLimit uom="FL">170</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.93cb74b6-af01-42ce-8722-c5f660c74e88" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">0.217 -77.650 -0.067 -77.683 -0.117 -77.650 -0.017 -77.317 0.217 -77.650</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.26bf2201-6413-44ce-b8e3-33133199c824" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.940fe0e1-f99c-413f-a6fa-fe65cfec66bc"><gml:timePosition>2026-04-02T14:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VA EM DTCTD IN STLT IMG. VA EM MOVNT DIR UNKN DUE TO LGT WNDS IN SUMMIT AREA. LGT AND VAR WNDS TO CONT WITH MOVNT EXP TO NE THRU T+12 HRS WITH LOW CONFD. FL BSD ON PST ACT. FCST BSD ON NWP MDLS. ...LINER</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.105f4518-4d8c-440d-8b50-42d41b8e3ad4"><gml:timePosition indeterminatePosition="before">2026-04-02T03:00:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX23KNES012055_C_KNES_20260401205649.xml</bulletinIdentifier></MeteorologicalBulletin>