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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoPlainText><span style='font-family:"Courier New"'>SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>SALEM FORESTRY WEATHER CENTER<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>OREGON DEPARTMENT OF FORESTRY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>ISSUED: Wednesday, April 20, 2011 2:30 PM Pete Parsons<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>THURSDAY<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>A very cool upper-level trough will remain over the Pacific Northwest, with a couple of embedded disturbances affecting the region. One system is forecast to cut across Washington and northern Oregon, while another exits southern Oregon. The northern system will not have a lot of moisture to work with but should bring scattered showers to the northern third of Oregon. The air aloft will be cold enough for these showers to fall as snow, down to about 1000 feet, in the early morning, before rising to around 2500 feet in the afternoon. The southern system could locally bring as much as .25 inches of precipitation to southwestern Oregon Wednesday night, before pushing eastward across south-central and southeastern Oregon on Thursday. Snow levels across southern Oregon will be around 3000 feet.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>A cool but drier northwesterly flow aloft will develop across all of western Oregon Thursday afternoon and begin to stabilize the air mass. The air aloft will remain unseasonably cool, so daytime heating should provide good mixing and enough instability for at least widely scattered afternoon showers, especially over higher terrain. Surface temperatures will remain about 10 degrees below normal with mostly northwesterly transport winds.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>OUTLOOK (FRIDAY-SUNDAY)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>A weak upper-level ridge of high pressure is forecast to bring generally dry and warmer conditions on Friday, with an undercutting westerly jet stream continuing to bring a slight chance of showers to northern California and higher terrain of extreme southern Oregon. After a cold start, partly to mostly sunny skies should warm afternoon surface temperatures close to normal. The freezing level will only rise to about 6000 feet north and 7000 feet south, so afternoon heating will provide good mixing. Transport winds will turn offshore.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>The ridge of high pressure is forecast to move over Idaho on Saturday with increasing westerly flow aloft over Oregon. The first in a series of potent weather systems will likely spread rain back into southwestern Oregon by afternoon and across all of western Oregon by evening. The snow level is forecast to drop to 5000 feet. Light morning transport winds will increase, from the southeast to south, with good afternoon mixing.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>A strengthening westerly jet stream will drive a strong cold front across western Oregon early Easter Sunday morning, followed by a cold and unstable upper-level trough. Morning rain and mountain snow will turn showery, in the afternoon, with the snow level dropping to 3000 feet north and 4000 feet south. Precipitation totals could locally exceed .50 inches. Mixing should be good with brisk southwesterly transport winds.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>2. DISPERSION<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 601-612 (North Coast Range and Cascades):<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>MORNING<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height 3500 - 4500 ft.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind WSW to WNW at 10 - 18 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind WSW to WNW at 8 - 12 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>AFTERNOON<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height rising above 5000 ft.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind WNW to NW at 10 - 20 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind W to NW at 6 - 10 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>EVENING<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height 2000 - 3000 ft.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind WNW to NNW at 9 - 15 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind similar to afternoon.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 615-623 (South Coast Range and Cascades):<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>MORNING<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height 3000 - 4000 ft.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind NW to N at 4 - 8 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind NW to N at 4 - 8 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>AFTERNOON<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height rising above 5000 ft.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind similar to morning.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind similar to morning.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>EVENING<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height 2000 - 3000 ft.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind NNW to NNE at 6 - 10 mph.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind similar to afternoon.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>OUTLOOK:<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>FRIDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height below 1000 ft early rising to 3000 to 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind ENE to ESE at 4 - 8 mph. Surface wind light and variable.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>SATURDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height below 1000 ft early rising to 2200 to 3200 ft by late morning rising above 5000 ft during the afternoon. Transport wind SE to S at 8 - 12 mph during the morning becoming S to SSW at 12 - 24 mph during the afternoon. Surface wind ESE to S at 4 - 8 mph during the morning becoming SSE to SSW at 6 - 10 mph during the afternoon.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>SUNDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height 3800 to 4800 ft during the morning rising above 5000 ft during the afternoon. Transport wind SSW to SW at 19 - 33 mph. Surface wind S to SW at 10 - 18 mph during the morning becoming SW to W at 9 - 15 mph during the afternoon.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>These instructions are valid for burning conducted on Thursday, April 21, 2011.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>=================================================================<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Coast Range<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 601 and 612<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Units should be 1000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Restrict units in or near corridors to 500 tons or less.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 602, 603, and 620<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Units should be 500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Avoid burning in or near corridors. Higher tonnage is possible south of the Siuslaw River in Zone 603. Call the forecaster. Higher tonnage is possible south of the Rogue River in Zone 620. Call the forecaster.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 615, 618, and 619<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of the North Bend/Coos Bay SSRA.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 616 west of R8W<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Units should be 1500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 616 east of R9W<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Units should be 750 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Restrict units to 500 tons or less south of T30S.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Cascades<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 605, 606, 607, 608, 609, 611, 616, 617, and 623<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. From T12S through T17S in Zone 608 units should be 1000 tons or less, spaced 5 miles apart. South of T30S in Zone 616 units should be 500 tons or less, spaced 5 miles apart. South of T30S in Zone 617 units should be 750 tons or less, spaced 5 miles apart.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 610<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Units should be 1000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 620 and 622<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Units should be 500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Siskiyous<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Use standard guidance matrix. (See section 5 below.)<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>==============================================================<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>4. SPECIAL NOTE:<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> Call the smoke management duty forecaster at (503) 945-7401 to<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> discuss burning. Please do not call individual's numbers to <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> discuss daily burning. If the forecaster is not available, <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> leave a message and he will return your call as soon as possible.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> Avoid calling between 2 to 2:30 p.m. <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> The forecast is available on the Internet at: <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> Please ensure your units have been planned and accomplished by checking: <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>5. STANDARD GUIDANCE MATRIX:<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> * Greater than 5000 ft mixing height: No burning within 5 miles of <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> downwind SSRA. Maximum 100 tons per mile from downwind SSRA. <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> * 3000 - 5000 ft mixing height: No burning within 10 miles of <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> downwind SSRA. Maximum 75 tons per mile from downwind SSRA. <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> * Less than 3000 ft mixing height: No burning within 15 miles of <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> downwind SSRA. Maximum 50 tons per mile from downwind SSRA. <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> * All exceptions must be coordinated with the duty forecaster <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> prior to ignition.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>