English For Today Book 3 Pdf
Thora Buckner
An Ozone Action Day is in effect today for the Dallas-Fort Worth area. Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could result in ozone reaching the lower to middle of the "Unhealthy for Sensitive Groups" range on the west side of the Dallas-Fort Worth area; the upper end of the "Moderate" range in parts of the Amarillo, Lubbock, and Midland-Odessa areas; the middle of the "Moderate" range in parts of the El Paso area; and the upper end of the "Good" range in parts of the Tyler-Longview and Waco-Killeen areas.
Mainly light density residual smoke from the seasonal fire activities across Canada as well as the Pacific Northwest portion of the U.S. will continue to linger and expand mainly over areas north of a line from the Big Bend region to Tyler, TX with models suggesting that a bit more moderate density plume may possibly begin to reach portions of the Texas Panhandle, South Plains, and North Central Texas, however the majority of this denser smoke along with the lighter densities should continue to remain aloft. Additionally, the leading edge of a light to moderate density Saharan dust plume is expected to reach the southern tip of Texas and begin expanding over the southern coastal bend of Texas and lower Rio Grande Valley, however the majority of these fine particulates should also remain aloft. Meanwhile, a stalled frontal boundary stretching across the center of the state is forecast linger as well as begin to weaken. Persistent light morning winds with elevated relative humidity levels associated with this frontal boundary are expected to continue to slightly elevate fine particulate background levels in parts of more urban areas of the state. While scattered thundershowers may reduce fine particulate levels at times, enough of the aerosols from the smoke plumes, dust plumes, and urban background levels may reach and remain at the surface to raise the overall daily PM2.5 AQI to the lower end of the "Moderate" range in parts of the Amarillo, Brownsville-McAllen, Corpus Christi, Dallas-Fort Worth, El Paso, Houston, Lubbock, Midland-Odessa, Tyler-Longview, and Victoria areas and to the upper end of the "Good" range in parts of the Austin, Beaumont-Port Arthur, Bryan-College Station, Laredo, San Antonio, and Waco-Killeen areas.
Ozone Action Days will be in effect on Wednesday for the Dallas-Fort Worth and El Paso areas. Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could result in ozone reaching the lower to middle of the "Unhealthy for Sensitive Groups" range on the west side of the Dallas-Fort Worth area; the lower end of the "Unhealthy for Sensitive Groups" range on the west side of the El Paso area and in parts of the Amarillo area; the upper end of the "Moderate" range in parts of the Lubbock and Midland-Odessa areas; the lower end of the "Moderate" range in parts of the Waco-Killeen area; and the upper end of the "Good" range in parts of the San Antonio and Tyler-Longview areas.
Model guidance indicates that moderate density residual smoke from the seasonal fire activities across Canada as well as Pacific Northwest portion of the U.S. may continue expanding over the Texas Panhandle, South Plains, Permian Basin, Big Bend region, far West Texas, North Central Texas, and Northeast Texas with lighter amounts reaching Central Texas, however most of these aerosols are expected to remain aloft. Meanwhile, the light density plume of Saharan dust is expected to continue lingering over South Texas, the lower coastal bend of Texas as well as Rio Grande Valley and possibly reach portions of South Central and Southeast Texas. A little more moderate plume may arrive over portions of deep South Texas and the coastal bend of Texas, contributing a little more fine particulate matter to these portions of the state. Persistent light morning winds with elevated relative humidity levels associated with the weakening stalled frontal boundary across the middle of the state are expected to continue to slightly elevate fine particulate background levels in parts of more urban areas. While ongoing scattered thundershowers over portions of the state may periodically reduce fine particulate levels, the densities and coverage of the smoke and Saharan dust plumes may be enough to raise the overall daily PM2.5 AQI to the lower end of the "Moderate" range in parts of the Amarillo, Austin, Beaumont-Port Arthur, Brownsville-McAllen, Corpus Christi, Dallas-Fort Worth, El Paso, Houston, Laredo, Lubbock, Midland-Odessa, San Antonio, Tyler-Longview, Victoria, and Waco-Killeen areas and to the upper end of the "Good" range in parts of the Big Bend and Bryan-College Station areas.
Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could result in ozone reaching the lower end of the "Unhealthy for Sensitive Groups" range in parts of the Dallas-Fort Worth area; the middle to upper end of the "Moderate" range in parts of the Amarillo, El Paso, Lubbock, and Midland-Odessa areas; the lower end of the "Moderate" range in parts of the Big Bend area; and the upper end of the "Good" range in parts of the Austin, Tyler-Longview, and Waco-Killeen areas.
Depending on the density and coverage of the residual smoke from the seasonal fire activities across Canada as well as Pacific Northwest, model guidance indicates that the majority of these fine particulates will linger over the Texas Panhandle, South Plains, Permian Basin, Big Bend region, and far West Texas with lighter amounts over North Central Texas, Northeast Texas, as well as South Central Texas and remain aloft. Meanwhile, newer model guidance suggests the more moderate density plume of Saharan dust will continue filtering as well as lingering over deep South Texas and coastal regions of the state with lighter amounts possibly reaching South Central Texas, Northeast Texas, and Southeast Texas. Additionally, persistent light morning winds and/or elevated relative humidity levels are expected to continue to slightly elevate fine particulate background levels in more urban areas of the state. The overall daily PM2.5 AQI may reach the middle of the "Moderate" range in parts of the Brownsville-McAllen, Corpus Christi, and Houston areas; the lower end of the "Moderate" range in parts of the Austin, Beaumont-Port Arthur, Bryan-College Station, Dallas-Fort Worth, El Paso, Laredo, Midland-Odessa, San Antonio, Tyler-Longview, Victoria, and Waco-Killeen areas; and the upper end of the "Good" range in parts of the Amarillo, Big Bend, and Lubbock areas.
Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could result in ozone reaching the middle to upper end of the "Moderate" range in parts of the Amarillo, Dallas-Fort Worth, El Paso, Lubbock, and Midland-Odessa areas; the lower end of the "Moderate" range in parts of the Big Bend area; and the upper end of the "Good" range in parts of the Tyler-Longview and Waco-Killeen areas.
Model guidance indicates that the fine particulate matter associated with the residual smoke from the seasonal fire activities across Canada as well as Pacific Northwest over Texas should start to disperse and weaken. Meanwhile, the light to moderate density plume of Saharan dust is forecast to continue filtering and expanding over portions of Texas south and east of a line from Del Rio to Fort Worth, with the heaviest concentrations over deep South Texas, coastal regions of the state, and Southeast Texas. Additionally, persistent light morning winds and/or elevated relative humidity levels are expected to continue to slightly elevate fine particulate background levels in more urban areas of the state. Overall, the daily PM2.5 AQI may reach the middle of the "Moderate" range in parts of the Brownsville-McAllen, Corpus Christi, and Houston areas; the lower end of the "Moderate" range in parts of the Austin, Beaumont-Port Arthur, Bryan-College Station, Dallas-Fort Worth, El Paso, Laredo, San Antonio, Tyler-Longview, Victoria, and Waco-Killeen areas; and the upper end of the "Good" range for parts of the Amarillo, Big Bend, Lubbock, and Midland-Odessa areas.
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