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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: Tuesday, April 26, 2011 2:35 PM Jim Little<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:24.75pt;text-indent:-24.75pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:"Courier New"'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Courier New"'>DISCUSSION AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 630-638<o:p></o:p></span></p><p class=MsoPlainText style='margin-left:42.75pt'><span style='font-family:"Courier New"'> <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> WEDNESDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>A weak upper level ridge drifts east out of the state during the day as an upper level low moves toward Vancouver Island. Dry weather will prevail. Mixing heights will at 5000 feet or better and southwesterly transport winds should provide for good smoke dispersal conditions. <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 (THURSDAY - SATURDAY)<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>The upper level low moves eastward across southern British Columbia with a trailing trough moving across Oregon on Thursday. Light rain spreads east from the remains of the front mentioned above. Transport winds shift to northwesterly and cool air aloft with the trough will keep mixing heights high for good smoke dispersal conditions.<o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>The upper trough slips east and a ridge of high pressure develops in the eastern Pacific and the Gulf of Alaska on Friday. This will shift winds aloft to north northwesterly over the region. Expect continued northwesterly transport winds and good smoke dispersal conditions.<o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>By Saturday a surface high noses into western Oregon and a surface thermal trough builds in northern California. Expect dry weather for Saturday with maximum mixing heights climbing to around 4500 feet and west to northwesterly transport winds. <o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='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"'>WEDNESDAY<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 630 and 632:<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height above 5000 ft throughout the day. Mixing height lowers to 1300 - 2300 ft during the evening.<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"'>Transport wind SSW to SW at 10 - 16 mph during the morning. Transport wind shifts to WNW to NNW at 8 - 14 mph during the afternoon then increases to WNW to NNW at 10 - 20 mph during the evening.<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"'>Surface wind SSW to SW at 8 - 14 mph during the morning. Surface wind shifts to WNW to NNW at 6 - 12 mph during the afternoon and evening.<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 633 - 638:<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height above 5000 ft during the morning and afternoon. Mixing height lowers below 1000 ft during the evening.<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"'>Transport wind S to SW at 8 - 14 mph during the morning. Transport wind shifts to WSW to WNW at 6 - 12 mph during the afternoon and shifts to WNW to NNW at 6 - 10 mph during the evening.<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"'>Surface wind S to SW at 8 - 12 mph during the morning. Surface wind shifts to WSW to NW and decreases to 4 - 8 mph during the afternoon then becomes light and variable and controlled by local terrain during the evening.<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"'>THURSDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height 1700 to 2700 ft during the morning rising above 5000 ft during the afternoon. Transport wind WNW to NNW at 6 - 10 mph. Surface wind WNW to NNW 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"'>FRIDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height 3400 to 4400 ft during the morning rising above 5000 ft during the afternoon. Transport wind W to NW 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 3000 to 4000 ft by late morning rising to 4000 to 5000 ft during the afternoon. Transport wind W to NW at 4 - 8 mph. Surface wind W to NW 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"'>3. BURNING INSTRUCTIONS FOR NORTHEAST OREGON ZONES 630-638<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> The following considerations should be adhered to in addition to<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> the requirements of the Oregon Smoke Management Plan. These<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> Instructions are valid for burning conducted on Wednesday, April 27, 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 style='margin-left:.5in'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>Zone 630 and 632:<o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>Avoid ignitions within 12 miles to the S through NNW of SSRAs. Watch for shifting transport winds. No additional restrictions necessary. Complete ignitions by 4:00pm. <o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>Zone 633 - 638:<o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>Avoid ignitions within 12 miles to the S through NNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the S through NNW in or near drainages leading to SSRAs. Watch for shifting transport winds. Complete ignitions by 4:00pm. <o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><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"'> The smoke management forecaster is available at (503)-<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> 945-7401. Please call this number and not individual's <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> numbers to discuss daily burning. For large burns (over<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> 2000 tons) or burns extending over a considerable period,<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> please request a special forecast. Avoid calling before<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> 8 a.m. and between 2 to 3 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"'> This 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=MsoNormal><o:p> </o:p></p></div></body></html>