tag:blogger.com,1999:blog-7478606652950905956.post861419685473167576..comments2024-03-28T07:43:57.163-07:00Comments on Cliff Mass Weather Blog: Black IceCliff Mass Weather Bloghttp://www.blogger.com/profile/13948649423540350788noreply@blogger.comBlogger25125tag:blogger.com,1999:blog-7478606652950905956.post-31582493449247655642009-01-21T21:56:00.000-08:002009-01-21T21:56:00.000-08:00The burn ban isn't all that well publicized, unles...The burn ban isn't all that well publicized, unless you're a weather geek (like us) or own a tv. - MorganAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-23433108276160209272009-01-21T20:56:00.000-08:002009-01-21T20:56:00.000-08:00Well Hi Tim!:o) Nice to see you on Cliff`s blog as...Well Hi Tim!:o) Nice to see you on Cliff`s blog as well.<BR/><BR/>No ice fog today that I could tell, as for was mainly gone by about 930-ish this morning.<BR/><BR/>But geez...yesterday? It was PEA SOUP fog last night! Could barely see the trail on my bike ride home from work last night.andycottlehttps://www.blogger.com/profile/12696751462397354299noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-20982664666217132092009-01-21T19:53:00.000-08:002009-01-21T19:53:00.000-08:00Andy,Any ice fog out there in Woodinville? Sunny a...Andy,<BR/><BR/>Any ice fog out there in Woodinville? Sunny and warm in North Bend today!<BR/><BR/>TT SeaAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-45254247927439876342009-01-21T19:29:00.000-08:002009-01-21T19:29:00.000-08:00Here on Hollywood hill, Woodinville(Elv roughly 30...Here on Hollywood hill, Woodinville(Elv roughly 300ft), I had some early morning fog, but then skies were partly cloudy for rest of the day. My high today was 40 with low of 25.andycottlehttps://www.blogger.com/profile/12696751462397354299noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-85870426150871782022009-01-21T18:58:00.000-08:002009-01-21T18:58:00.000-08:00How about "high land" snow, such as at 580 feet on...How about "high land" snow, such as at 580 feet on Demery Hill in Sammamish?Teresahttps://www.blogger.com/profile/09704607178106828945noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-13274124366159557372009-01-21T16:34:00.000-08:002009-01-21T16:34:00.000-08:00Any chance this fog will end, or at least burn off...Any chance this fog will end, or at least burn off for a few hours a day ?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-12593141417837361902009-01-21T15:35:00.000-08:002009-01-21T15:35:00.000-08:00All..yes, some cold air is returning this weekend,...All..yes, some cold air is returning this weekend, but at this point I don't see much lowland snow. More on this tonight...cliffCliff Mass Weather Bloghttps://www.blogger.com/profile/13948649423540350788noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-23768169197043602562009-01-21T14:00:00.000-08:002009-01-21T14:00:00.000-08:00Any chance you talk about lowland snow storms will...Any chance you talk about lowland snow storms will end up in a podcast?John Fhttps://www.blogger.com/profile/12173641944279525824noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-5372255968833686472009-01-21T13:29:00.001-08:002009-01-21T13:29:00.001-08:00I am wondering the same things as a few other comm...I am wondering the same things as a few other commenters are about the long-er range forecasts. Any wild weather to speak of at all? Wind, lots of rain, more snow, etc. or are we going to stay in this dry period for a while?<BR/><BR/>I think its time for a good, old-fashioned forecast :)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-72321643154082537792009-01-21T13:29:00.000-08:002009-01-21T13:29:00.000-08:00Depending on which model you believe, Sunday could...Depending on which model you believe, Sunday could deliver a couple inches of snow to the area.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-52835915831594241152009-01-21T11:52:00.000-08:002009-01-21T11:52:00.000-08:00There is some important physics going on near the ...There is some important physics going on near the surface in black icing conditions. Near surfaces, a film of still air accumulates that acts as an insulation barrier between the general air mass and the surface. It acts very much like the insulating glass cover space of a single glazed solar collector. On a clear night the surface is seeing a cold night sky temperature, determined by the infrared absorption in the water vapor content in the air column. The radiation balance for the surface is the difference between the warm surface radiation and that of the cold air column. Remember that this radiation occurs as the 4th power of the absolute temperature. Insulated by the surface air film, the differential radiation transfer will cool surfaces substantially below air temperatures. I expect that some of the cooler air temperatures measured at the surface is conduction cooling from the surface back into the near surface air. Some, of course, will be density gradient flow as well. This radiation cooling effect is also responsible for fiberglass and metal car porch roofs dripping from the underside in clear nights. The radiation cooling cools the roof surface and condensation from the air forms on both surfaces. The condensate on the bottom surface drips off and is annoying. An insulated or less conducting surface will not experience a temperature difference on the lower surface and will be dryer.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-55700666978521840362009-01-21T11:18:00.000-08:002009-01-21T11:18:00.000-08:00Begreen's comments convey the complexity of ai...Begreen's comments convey the complexity of air quality forecasting. Forecasting air quality levels is interesting and counterintuitive. The stage 2 burn ban was issued once measured criteria was met. With no change in the synoptic pattern to break the inversion and restore effective mixing and dispersion expected for >48hrs. Controls are necessary to slow or reverse pollution trends. If you are successful, air quality concentrations should be below the forecast. Forecasts are indicators of expected air quality levels based on predicted meteorology and expected public behavior. For clarity burn bans are only issued on a county wide basis. Fortunately it seems that the public is responding to all of the great coverage of this event and many are choosing to comply with the burn bans. There is a real awareness that our laws permit the lawful use of wood burning devices and PSCAA promptly lifts bans when well mixed weather patterns return. It is noteworthy that the new law permits the issuance of stage 2 bans at levels below the EPA standard. It will not take another decade before the next one is issued.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-67174409971546070442009-01-21T10:56:00.000-08:002009-01-21T10:56:00.000-08:00I've been wondering about that, myself -- regardle...I've been wondering about that, myself -- regardless of what the Puget Sound Clean Air Agency says about the air quality, I can tell you it's not very good; folks I know with lung diseases like asthma and reactive airway disease are having some difficulty. <BR/><BR/>The Puget Sound Clean Air Agency is very clear, though, that there's a burn ban in effect -- stage 2, so no indoor burning, either (<I>"unless this is your only adequate source of heat"</I>). We're making do, but won't be able to get it above 60 F inside without the wood stove if the weather gets any colder. <BR/><BR/>At this point, I'd trade the sunshine for rain if it meant easier breathing and a warmer house!<BR/><BR/>- MorganAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-25362351531123954942009-01-21T10:40:00.000-08:002009-01-21T10:40:00.000-08:00would love to know what next weeks weather could p...would love to know what next weeks weather could possibly do.....I know the models are all over the place but do any of them hint at any snow that would impede travel or any wild winds, etc? I have to travel for work next week....always seems like the weather acts up when I have to travel!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-44234193079133093652009-01-21T10:29:00.000-08:002009-01-21T10:29:00.000-08:00There is confusing information coming from Puget S...There is confusing information coming from Puget Sound Air Quality. Although news reports are indicating that the air quality has deteriorated to a condition that may affect the health of sensitive persons (orange on the alert status), the metrics on pscleanair’s website do not support this claim. Since Jan. 17, the particulate matter graphs at: http://www.pscleanair.org/airq/aqi.aspx show the air quality never getting into the orange zone. Today, half of the reporting stations are showing the air quality as good. Yet we remain under a stage 2 burn ban. Is the equipment in error? Is there a reporting error? Or is this a case of over-zealous authority? Why is there a stage 2 burn ban with these air quality metrics?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-15342015916745331052009-01-21T06:55:00.000-08:002009-01-21T06:55:00.000-08:00We have had crystal clear skies in east Woodinvill...We have had crystal clear skies in east Woodinville, elev 530' for the past few days, no fog to speak of at all, that's a switch. And you lowlanders are not only in fog, but yellow, nasty, weird fog...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-60323840540102010012009-01-21T05:59:00.000-08:002009-01-21T05:59:00.000-08:00@Josh Yes, we had snow, but remember Winter began...@Josh Yes, we had snow, but remember Winter began in the middle of that. So we had about 2 weeks of "winter" then we went back to spring like weather. I seem to remember this last year too with November being more "winter" than winter was, then spring being more "winter" as well.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-40677889113109108342009-01-21T00:02:00.000-08:002009-01-21T00:02:00.000-08:00Brightest, sunniest day yet in Bellingham today. W...Brightest, sunniest day yet in Bellingham today. We have yet to see really persistent daytime fog here. Beautiful white frosting last few mornings. Around here, anything can be winter weather. I am no longer surprised by the rare 60 degree December or January day. I also look forward to the reliable warm, spring days in February, April snow storms, 80 degree May days and 50 in June. Interesting always...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-53783992963223812622009-01-20T23:38:00.000-08:002009-01-20T23:38:00.000-08:00You dont call the snow storm and rain storm we had...You dont call the snow storm and rain storm we had "winter activity"?Joshhttps://www.blogger.com/profile/06661787749319699950noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-84459911824344503182009-01-20T23:33:00.000-08:002009-01-20T23:33:00.000-08:00Are we ever going to return to winter? The past t...Are we ever going to return to winter? The past two years have seen more "winter" activity happening in Fall and Spring than winter. That's weird.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-25525532682185543052009-01-20T23:29:00.000-08:002009-01-20T23:29:00.000-08:00Hi Josh. I would`nt depend very much on TWC. It`s ...Hi Josh. I would`nt depend very much on TWC. It`s best to with your local NWS forecast.:o)<BR/><BR/>Anyway, hard to say what will happen. Short term for late this weekend into early work work week shows mainly dry N-NELY flow and 850mb temps lowering about -9, -10c with surface thicknesses in the upper 510`s(517-518m). So probably some cool/cold days with VERY frosty nights. On the flip side, 0zGFS wants to have a cut-off low south of our region for late next week with a weak ridge over WA/OR, while 12z/00z EURO models show a few cold troughs dipping down over our region for the same time period. So will have to see what really happens.andycottlehttps://www.blogger.com/profile/12696751462397354299noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-51452074624475948312009-01-20T23:21:00.000-08:002009-01-20T23:21:00.000-08:00Hey you know what? As long as it`s reliable, works...Hey you know what? As long as it`s reliable, works good, and for a well reasonable price....then cheap is good. On some things that is.andycottlehttps://www.blogger.com/profile/12696751462397354299noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-44817391772794933732009-01-20T23:19:00.000-08:002009-01-20T23:19:00.000-08:00Any ideas what's going to happen next week? The we...Any ideas what's going to happen next week? The weather channel is showing rain/snow is in the forecast for wednesday and Thursday of next week. 60% chance?Joshhttps://www.blogger.com/profile/06661787749319699950noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-88567304311407398352009-01-20T23:15:00.000-08:002009-01-20T23:15:00.000-08:00Don't laugh! I checked it out against very expens...Don't laugh! I checked it out against very expensive thermometers and it was very comparable. Who says cheap can't be good?Cliff Mass Weather Bloghttps://www.blogger.com/profile/13948649423540350788noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-73196757982140480372009-01-20T22:48:00.000-08:002009-01-20T22:48:00.000-08:00I got such a laugh when I blew up the picture of y...I got such a laugh when I blew up the picture of your “High Accuracy Thermometer” and saw that it was a Radio Shack indoor/outdoor digital. That was what I used to make the temperature measurement that I sent you from my Tiger hike last week, although I think that my unit is a few years older than yours. I mounted the sensor on the back of my pack to isolate it from my body heat. Also the sensor has low thermal mass so it tracks pretty well when you are on the move. I took care to keep the sun off of the sensor so I felt pretty confident about the numbers that I got.Anonymousnoreply@blogger.com