<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.5pt;
font-family:Consolas;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:Consolas;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</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, May 3, 2011 2:40 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><span style='font-family:"Courier New"'>1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625<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 style='margin-left:.5in'><span style='font-family:"Courier New"'>An upper level ridge drifts eastward across the region on Wednesday. The axis of the ridge is near the coast early in the morning but by evening lies along a line from eastern Washington to eastern Oregon. Expect dry weather and high afternoon mixing heights for good smoke dispersal conditions most areas. Afternoon mixing heights should climb to or above 5000 feet and transport winds will be mostly southeasterly.<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 ridge shifts to the northern plains on Thursday as a weak upper trough moves across the Pacific Northwest. Moisture is limited, thus expect just mid and high clouds. Temperatures will climb to 7 to 10 degrees above average. Transport winds start out southerly but become northwesterly during the day. High maximum mixing heights should provide 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"'>A generally zonal or west to east flow aloft prevails on Friday. Low level transport winds will be generally west-southwesterly. Smoke dispersal conditions will be fair as maximum mixing heights will be a bit lower than on Thursday.<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"'>Little change in the broad upper scale flow for Saturday is likely, but a weak impulse in the flow could bring an increase in mid and high clouds to the region. Temperatures dip to around 3 to 6 degrees below average for the time of year. However maximum mixing heights are again likely to exceed 5000 feet and with a good west-southwest transport wind smoke dispersal conditions should be good. <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"'>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"'>Mixing height 2600 - 3600 ft during the morning. Mixing height rises above 5000 ft during the afternoon then 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 E to SE at 8 - 12 mph during the morning. Transport wind shifts to SE to SSW at 6 - 10 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"'>Surface wind E to SE at 6 - 12 mph during the morning. Surface wind shifts to SE to S at 6 - 10 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 below 1000 ft early rising above 5000 ft by late morning and through the afternoon. Transport wind SW to WSW at 10 - 16 mph during the morning becoming WNW to NW at 13 - 25 mph during the afternoon. Surface wind SSW to WSW at 8 - 12 mph during the morning becoming W to WNW at 10 - 22 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"'>FRIDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height below 1000 ft early rising to 2500 - 3500 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to WNW at 4 - 8 mph. Surface wind light and variable during the morning becoming WSW to NW at 4 - 8 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"'>SATURDAY<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to W 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"'>3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> RANGE PORTION OF ZONE 624<o:p></o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>This instruction is valid for burning conducted on Wednesday, May 4, 2011.<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"'><o:p> </o:p></span></p><p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>Avoid ignitions within 15 miles to the E through SSW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles to the E through SW in or near drainages leading to SSRAs. Watch for shifting transport winds. Recommend against burning units that will smolder significantly overnight. 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"'>==============================================================<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. The smoke management forecaster is available <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> to discuss specific burns. The duty forecaster phone <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> number is (503) 945-7401. Please call this number and <o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> not individual's numbers to discuss daily burning. Please<o:p></o:p></span></p><p class=MsoPlainText><span style='font-family:"Courier New"'> avoid calling before 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>