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<p class="MsoNormal">Hi Marc, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve never really considered this effect before. It’s an interesting perspective as it often comes up (for better or worse), how can this be related to dollars. The cost for tree downs and power outage can presumably be obtained (although
 I’ve never tried it) and compare it with the cost of preventable measures of invasive removal efforts. Just thinking about your question a little:
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is the implication that invasive woody vine species add an additional amount of weight stress during these heavy snowy and high wind storms? Or is it because these trees are dead and/or dying from being strangled? My first question is,
 ignoring any vine invaders for the moment, does the proximity of a tree to a roadway already increase the likelihood of it falling down compared to a structurally “undisturbed” habitat (i.e., wood lot/forest)? I would suggest perhaps surveying pre-selected
 comparable stretches of highway with and without invaders as well as comparable wood lots / forests with and without vine invaders you’ve mentioned below. This would quantify an answer to your question of the effect of invasive vines on the increased number
 of tree downs during storm events and comparing edge vs continuous habitat. My second question is, were there trees you observed that hadn’t fallen and were they vine free? Did vines appear to play a role in the falling? This would best be answered statistically
 when comparing a “reference” habitat. We all know highways are well-known corridors for invaders. As I drive along I-78 or I-95 in New Jersey, I see miles and miles of tree lines covered in bittersweet, honeysuckle, and grape. Certainly more so than any uninvaded
 tree lines. If most of my drive has an invaded tree line, odds are, you would see more trees that would have invaders on them.  My third questions is, do you think there an effect of tree size, invasive vine species, or extent of vine coverage that increases
 likelihood of falling? These are metrics that could be easily documented and noted by volunteers and citizen scientists.   You’d be able to target areas to treat and remove if you know the most vulnerable species and tree sizes.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> MAIPC <maipc-bounces@lists.maipc.org> <b>On Behalf Of
</b>Imlay, Marc<br>
<b>Sent:</b> Friday, March 09, 2018 11:06 AM<br>
<b>To:</b> Southern Maryland Executive Committee <MD-SMD-EXCOM@LISTS.SIERRACLUB.ORG>; MD Cons Committee <MD-CONS-COMM@LISTS.SIERRACLUB.ORG>; 'INVASIVES@LISTSERV.UMD.EDU' <INVASIVES@LISTSERV.UMD.EDU>; 'FOSC listserv' <friendsofsligocreek@yahoogroups.com>; Maryland
 Energy Committee <MD-ENERGY-COMM@LISTS.SIERRACLUB.ORG>; maipc@lists.maipc.org; apwg@lists.plantconservation.org; 'MNPS Board' (board@mdflora.org) <board@mdflora.org><br>
<b>Cc:</b> Colleen Aistis <caistis@hyattsville.org> (caistis@hyattsville.org) <caistis@hyattsville.org>; Sweet, Benjamin <Benjamin.Sweet@pgparks.com>; Jennifer Reginald <jennifer@jenreginald.com>; Dillon, John <John.Dillon@pgparks.com>; Simmonds, Tanya <Tanya.Simmonds@pgparks.com>;
 Mills, Devin <Devin.Mills@pgparks.com>; Abellera, Jon Paolo <JonPaolo.Abellera@pgparks.com>; Garrett, Chris <Chris.Garrett@pgparks.com>; Jacob, Stephanie <Stephanie.jacob@pgparks.com>; Port Tobacco River Conservancy <jsimpson@porttobaccoriver.org>; DaSilva,
 Calvin <Calvin.DaSilva@Pgparks.com>; reginald.lea@pgcps.org; Adams, Michelle <Michelle.adams@Pgparks.com>; Dolesh, Mike <Mike.Dolesh@pgparks.com>; Lee, Jill <Jill.Lee@pgparks.com>; 'dtaft@hyattsville.org' <dtaft@hyattsville.org>; Abrams, Amanda <Amanda.Abrams@pgparks.com>;
 MacGregor, Ashlyn <Ashlyn.MacGregor@Pgparks.com>; Harley, George <George.Harley@pgparks.com>; Westby, Brooke <Brooke.Westby@pgparks.com><br>
<b>Subject:</b> Re: [MAIPC] 03/02/18 Weather Alert: High Wind Warning<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D">I did a study of the first 5 trees I found that had fallen down over highways causing traffic to stop because of the Friday March 3 wind storm. The first was
 strangled by oriental bittersweet, the second by oriental bittersweet, the third no vine found, the fourth American Grape, the fifth Japanese honeysuckle. About 8 years ago 7 trees came down in a February storm. All were strangled by English Ivy in a 30 acre
 park. No other trees came down. <o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D">So let us do a statistical study after the next gross storm.
<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b>From:</b> Imlay, Marc <br>
<b>Sent:</b> Saturday, March 03, 2018 10:50 AM<br>
<b>To:</b> 'Southern Maryland Executive Committee' <<a href="mailto:MD-SMD-EXCOM@LISTS.SIERRACLUB.ORG">MD-SMD-EXCOM@LISTS.SIERRACLUB.ORG</a>>; 'MD Cons Committee' <<a href="mailto:MD-CONS-COMM@LISTS.SIERRACLUB.ORG">MD-CONS-COMM@LISTS.SIERRACLUB.ORG</a>>;
<a href="mailto:INVASIVES@LISTSERV.UMD.EDU">INVASIVES@LISTSERV.UMD.EDU</a>; 'FOSC listserv' <<a href="mailto:friendsofsligocreek@yahoogroups.com">friendsofsligocreek@yahoogroups.com</a>>; 'Maryland Energy Committee' <<a href="mailto:MD-ENERGY-COMM@LISTS.SIERRACLUB.ORG">MD-ENERGY-COMM@LISTS.SIERRACLUB.ORG</a>><br>
<b>Cc:</b> Simmonds, Tanya <<a href="mailto:Tanya.Simmonds@pgparks.com">Tanya.Simmonds@pgparks.com</a>>; Abellera, Jon Paolo <<a href="mailto:JonPaolo.Abellera@pgparks.com">JonPaolo.Abellera@pgparks.com</a>>; Abrams, Amanda <<a href="mailto:Amanda.Abrams@pgparks.com">Amanda.Abrams@pgparks.com</a>>;
 Adams, Michelle <<a href="mailto:Michelle.adams@Pgparks.com">Michelle.adams@Pgparks.com</a>>; Dillon, John <<a href="mailto:John.Dillon@pgparks.com">John.Dillon@pgparks.com</a>>; Dolesh, Mike <<a href="mailto:Mike.Dolesh@pgparks.com">Mike.Dolesh@pgparks.com</a>>;
 Garrett, Chris <<a href="mailto:Chris.Garrett@pgparks.com">Chris.Garrett@pgparks.com</a>>; Harley, George <<a href="mailto:George.Harley@pgparks.com">George.Harley@pgparks.com</a>>; Lee, Jill <<a href="mailto:Jill.Lee@pgparks.com">Jill.Lee@pgparks.com</a>>;
 Mills, Devin <<a href="mailto:Devin.Mills@pgparks.com">Devin.Mills@pgparks.com</a>>; Sweet, Benjamin <<a href="mailto:Benjamin.Sweet@pgparks.com">Benjamin.Sweet@pgparks.com</a>>; Westby, Brooke <<a href="mailto:Brooke.Westby@pgparks.com">Brooke.Westby@pgparks.com</a>>;
 Ellis, Michael <<a href="mailto:Michael.Ellis@pgparks.com">Michael.Ellis@pgparks.com</a>>; DaSilva, Calvin <<a href="mailto:Calvin.DaSilva@pgparks.com">Calvin.DaSilva@pgparks.com</a>>; MacGregor, Ashlyn <<a href="mailto:Ashlyn.MacGregor@pgparks.com">Ashlyn.MacGregor@pgparks.com</a>>;
<a href="mailto:reginald.lea@pgcps.org">reginald.lea@pgcps.org</a>; 'Port Tobacco River Conservancy' <<a href="mailto:jsimpson@porttobaccoriver.org">jsimpson@porttobaccoriver.org</a>>;
<a href="mailto:dtaft@hyattsville.org">dtaft@hyattsville.org</a>; Colleen Aistis <<a href="mailto:caistis@hyattsville.org">caistis@hyattsville.org</a>> (<a href="mailto:caistis@hyattsville.org">caistis@hyattsville.org</a>) <<a href="mailto:caistis@hyattsville.org">caistis@hyattsville.org</a>>;
 Jacob, Stephanie <<a href="mailto:Stephanie.jacob@pgparks.com">Stephanie.jacob@pgparks.com</a>>; Carol Bergman (<a href="mailto:carole.bergmann@mncppc-mc.org">carole.bergmann@mncppc-mc.org</a>) <<a href="mailto:carole.bergmann@mncppc-mc.org">carole.bergmann@mncppc-mc.org</a>>;
 'Jennifer Reginald' <<a href="mailto:jennifer@jenreginald.com">jennifer@jenreginald.com</a>><br>
<b>Subject:</b> FW: 03/02/18 Weather Alert: High Wind Warning<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D">I have not yet seen trees come down in the parks where volunteers removed all the non-native invasive vines that would otherwise strangle and weaken them, including
 English Ivy, Oriental bittersweet and Japanese Honeysuckle. Would it have cost less for our government to have spent the $ with preventive care than what it cost yesterday restoring roads, buildings and hospital visits.
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Arial",sans-serif;color:red">Marc Imlay
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Arial",sans-serif;color:red">Sierra Club Natural Places Chapter Chair working group
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:18.0pt;font-family:"Arial",sans-serif;color:red">301-442-5657
</span><a href="mailto:ialm@erols.com"><span style="font-size:18.0pt;font-family:"Arial",sans-serif">ialm@erols.com</span></a><span style="font-size:18.0pt;font-family:"Arial",sans-serif;color:red"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">From: Mncppc-News
<br>
Sent: Thursday, March 01, 2018 4:35 PM<br>
Subject: 03/02/18 Weather Alert: High Wind Warning<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">Forwarded on behalf of the Safety Team.<o:p></o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><u><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:red"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:red"><img border="0" width="226" height="170" style="width:2.3541in;height:1.7708in" id="Picture_x0020_1" src="cid:image001.png@01D3B79B.87497AF0" alt="cid:image001.png@01D3B79B.87497AF0"></span></b><b><u><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:red"><o:p></o:p></span></u></b></p>
<p class="MsoNormal" align="center" style="text-align:center;mso-line-height-alt:13.5pt;background:white">
<b><u><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:red">Potential Hazardous Weather Conditions<o:p></o:p></span></u></b></p>
<p class="MsoNormal" style="mso-line-height-alt:15.0pt;background:#F7F7F7"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:red"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">The National Weather Service has issued a High Wind Warning for Prince George’s County and Montgomery County, which is in effect from 7 AM Friday to 6 AM EST Saturday.  The
 strongest winds will be Friday afternoon through Friday evening, and are predicted to be 25 to 40 mph, with gusts around 60 to 70 mph. <o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">Individuals and M-NCPPC facilities should prepare for the possibility of damaging winds that may blow down trees and power lines.  Also, widespread power outages are expected.
 Travel will be difficult, especially for high profile vehicles. <o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">Staff is asked to monitor forecasts and be prepared to take action should warnings be issued. 
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">Preparing for Strong Wind Gusts:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo3"><b><i><span style="font-size:16.0pt;font-family:"Arial",sans-serif">Bring Loose Items Indoors</span></i></b><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">.  Objects left outside in wind
 storms can either become projectiles and potentially injure people and property, or the objects themselves can be lost, damaged, or ruined. It is important to remember that nothing is more important than the safety of people, so objects should only be brought
 indoors if it is safe to do so.<o:p></o:p></span></b></li></ul>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo3"><b><i><span style="font-size:16.0pt;font-family:"Arial",sans-serif">Secure Large Outdoor Objects</span></i></b><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">.  Some objects will simply
 be too big to safely bring indoors in the event of high winds, but even if they are too large to bring in, they can still be affected by wind. If possible, these items should be anchored and secured.  Objects to consider include signs, tables, chairs, large
 umbrellas, play structures, watercrafts, garbage cans, and much more. There are many ways to safely secure these objects, including weights, ropes, chains, and stakes.<o:p></o:p></span></b></li></ul>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo3"><b><i><span style="font-size:16.0pt;font-family:"Arial",sans-serif">Close and Secure Doors and Windows.</span></i></b><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">  Closing windows and
 doors is a simple step that can be easily forgotten while everyone is securing objects, collecting their belongings, and heading indoors. Open windows can result in water damage or broken glass. If there are shutters, it is important to close them. Also, close
 and secure doors since strong winds can easily rip them from hinges.<o:p></o:p></span></b></li></ul>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><a href="https://www.mncppc.org/DocumentCenter/View/5772"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">M-NCPPC Notice 11-08</span></b></a><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">
 Please see </span></b><a href="https://www.mncppc.org/DocumentCenter/View/5772"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">M-NCPPC NOTICE 11-08, “Preparation, Staffing, and Compensation During Emergency Conditions,”</span></b></a><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">
 Which outlines further steps to follow in the event of a weather emergency.<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">In the event of an accident or injury, call the Risk Management and Workplace Safety Office as follows:<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l6 level1 lfo8"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">During regular hours<o:p></o:p></span></b></li></ul>
<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">301-454-1686 or 1692<o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l6 level1 lfo8"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">After hours
<o:p></o:p></span></b></li></ul>
<p class="MsoNormal" style="text-indent:.5in;mso-line-height-alt:13.5pt;background:white">
<b><span style="font-size:16.0pt;font-family:"Arial",sans-serif">301-275-5125 or 240-393-0419<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
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