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VONA. NWP MODELS. GEOPHYSICAL INST.</informationSource><eruptionDetails>VA EMS OBSD</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.0a475f25-4628-4af3-8ed5-5c039b4f7308" isEstimated="false" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.da6a5944-2e0d-4c89-af23-14e513489085"><gml:timePosition>2023-04-12T21:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.8fb81e0e-2954-4b42-aa15-9ce90f83f60e"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.1b3a207b-49c1-4304-aba3-2c03d07533b0"><aixm:upperLimit uom="FL">240</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.cd5dfa8d-ef2d-47fa-954c-bf1a6c0e39d6" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.633 -78.817 -0.767 -78.800 -0.683 -78.433 -0.667 -78.433 -0.633 -78.817</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.0a6fab30-8000-4cd5-8353-9e1a0861fd91" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.199fda73-d0a6-42ba-a34a-166bde0184ef"><gml:timePosition>2023-04-13T03:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.7212f350-a22b-403e-933c-df85d255b287"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.1b1714dd-97bb-443b-94b3-e04b9e778c1c"><aixm:upperLimit uom="FL">240</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.c21ed9b8-65ab-4b08-9eae-146505a26ce2" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.617 -78.884 -0.783 -78.884 -0.683 -78.433 -0.667 -78.433 -0.617 -78.884</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.799c4de0-9359-4e69-bb00-ffa2822a1a36" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.5a282aba-26e8-4c39-8b86-69a30c98026e"><gml:timePosition>2023-04-13T09:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.e203088b-d1cd-47d5-9143-b0be56df2be6" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.5aba17ea-92e3-4971-9667-0c842b261047"><gml:timePosition>2023-04-13T15:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>NEW VA EMS OBSD IN SAT AND WEBCAM. VA CLDS EXTD APPX 20NMI W FM SUMMIT AMONG MET CLDS. VONA RECEIVED. VA FL/DIR BASED ON RPRT AND MDL GUIDANCE. NWP MDL FCST LTLCG THRU T+6HRS. ...ZENG</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.6c4b9f28-a7e2-491f-bb76-f84b7994b996"><gml:timePosition indeterminatePosition="before">2023-04-13T04:00:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX24KNES122203_C_KNES_20230412220406.xml</bulletinIdentifier></MeteorologicalBulletin>