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VONA. NWP MODELS.</informationSource><eruptionDetails>POSS VA EMS</eruptionDetails><observation><VolcanicAshObservedOrEstimatedConditions gml:id="uuid.9371ba4e-8ebf-4805-97c1-ee4d80905ed8" isEstimated="true" status="IDENTIFIABLE"><phenomenonTime><gml:TimeInstant gml:id="uuid.02233447-c1a4-4eca-9142-586add2b447d"><gml:timePosition>2023-05-31T13:10:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudObservedOrEstimated gml:id="uuid.78787d44-0749-4f02-bbdb-05669feeb165"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.bfd09a29-e638-4e6e-bb1a-9471be31b17f"><aixm:upperLimit uom="FL">210</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.0cf09eb3-b9f2-4497-b160-a3dc715577ad" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.533 -78.567 -0.617 -78.633 -0.683 -78.433 -0.667 -78.433 -0.533 -78.567</gml:posList></gml:LinearRing></gml:exterior></gml:PolygonPatch></gml:patches></aixm:Surface></aixm:horizontalProjection></aixm:AirspaceVolume></ashCloudExtent><directionOfMotion uom="deg">315</directionOfMotion><speedOfMotion uom="[kn_i]">25</speedOfMotion></VolcanicAshCloudObservedOrEstimated></ashCloud></VolcanicAshObservedOrEstimatedConditions></observation><forecast><VolcanicAshForecastConditions gml:id="uuid.98941bc5-8828-40bd-ade6-fb091dcf8253" status="PROVIDED"><phenomenonTime><gml:TimeInstant gml:id="uuid.d73d5388-c95b-471d-bdd9-175a4a9616ba"><gml:timePosition>2023-05-31T19:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime><ashCloud><VolcanicAshCloudForecast gml:id="uuid.bc992b86-7e38-4e9e-93e2-71f3cb1987ce"><ashCloudExtent><aixm:AirspaceVolume gml:id="uuid.ff29fabc-6efc-4cad-af19-0f54f8196eb3"><aixm:upperLimit uom="FL">210</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.eda2f02e-c9fd-43da-85c1-2a375628fbfb" srsDimension="2" srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:patches><gml:PolygonPatch><gml:exterior><gml:LinearRing><gml:posList count="5">-0.483 -78.633 -0.600 -78.700 -0.683 -78.433 -0.667 -78.433 -0.483 -78.633</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.abb2bba2-7050-4891-8859-f43e43088363" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.584d5f13-7f37-4a6e-b7b8-92753e0b217b"><gml:timePosition>2023-06-01T01:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><forecast><VolcanicAshForecastConditions gml:id="uuid.987eb1b6-ca99-466d-ba81-c5a66d562d7d" status="NO_VOLCANIC_ASH_EXPECTED"><phenomenonTime><gml:TimeInstant gml:id="uuid.b6abdfb7-2dde-4d05-aec5-4114a99c6c25"><gml:timePosition>2023-06-01T07:00:00Z</gml:timePosition></gml:TimeInstant></phenomenonTime></VolcanicAshForecastConditions></forecast><remarks>VONA RCVD FR VA EMS MOV NW. VA DIFFICULT TO SEE IN STLT IMG DUE TO MET CLDS. MODEL GUIDANCE SUGGESTS NW MVMT FM SUMMIT THRU T+6. ...GATLING</remarks><nextAdvisoryTime><gml:TimeInstant gml:id="uuid.4372c06e-332a-4aa1-8916-1fcbf98b585b"><gml:timePosition indeterminatePosition="before">2023-05-31T19:45:00Z</gml:timePosition></gml:TimeInstant></nextAdvisoryTime></VolcanicAshAdvisory></meteorologicalInformation><bulletinIdentifier>A_LUXX21KNES311338_C_KNES_20230531133901.xml</bulletinIdentifier></MeteorologicalBulletin>