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VONA. NWP MODELS.</informationSource><eruptionDetails>FREQUENT VA EMS</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.238549e3-88f3-49b3-9d8b-8be8e2c41179" isEstimated="false" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.542c0a2c-36e3-45ae-b5fb-5e959fffb3c5"><gml:timePosition>2025-06-18T23:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.6b8b681a-442f-4136-883a-e46b521608e4"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.9e965b5d-d313-429c-812c-ce893084ba3e"><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.efa4be55-8228-4006-bdb6-4ba4b98870db" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-1.917 -78.517 -2.083 -78.517 -2.017 -78.333 -2.000 -78.333 -1.917 -78.517</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.c3fcb9fb-3752-496f-a7d3-fde0c2d969cd" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.ef4f79cf-aa7e-4969-8bb0-8ad37fef7aca"><gml:timePosition>2025-05-19T05:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.4ded47f0-d9e2-4d8d-9aa1-f3c5b4a1352e"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.a19a409f-2a0a-45da-a1ff-88556540e930"><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.2cad2c92-cc7b-4712-b671-0dde51789e9b" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-1.984 -78.650 -2.133 -78.617 -2.017 -78.333 -2.000 -78.333 -1.984 -78.650</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.375db8de-fa2d-4831-aedf-5955b156974e" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.742e3b99-875d-4835-a852-f73a9e4165cb"><gml:timePosition>2025-05-19T11:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.f51baacd-9c21-4c84-b2f9-47d793c9df8e" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.2e5ef59b-a693-4b07-841d-7ba9ce929054"><gml:timePosition>2025-05-19T17:30:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VONA RCVD FR VA EMS. VA EMS VISIBLE IN STLT IMG MOV W EXT APRX 10NM FM SUMMIT. W MVMT EXP THRU T+6. FCST BASED ON VONA, STLT AND MDL WINDS. ...GATLING</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.a676371e-d737-457f-95a7-7b7f90291477"><gml:timePosition indeterminatePosition="before">2025-05-19T06:45:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX21KNES190040_C_KNES_20250519004101.xml</bulletinIdentifier></MeteorologicalBulletin>