jcmcgaffey Posted May 2, 2018 Report Share Posted May 2, 2018 And the lows up. I am sure other stations in the area were similar with warm lows thanks to so many nights with clouds and often with rain. I am a little disappointed we didn’t get as many accolades as we could have last month. Quote Link to comment Share on other sites More sharing options...
Jesse Posted May 2, 2018 Report Share Posted May 2, 2018 And the lows up. I am sure other stations in the area were similar with warm lows thanks to so many nights with clouds and often with rain.Bellingham and Seattle WFO had average lows 1-2 degrees cooler than SEA. Olympia had an average low of 39. The same situation was true down here with all surrounding stations having average lows 2-4 degrees cooler than PDX’s. Might as well just make peace with the fact that lows at PDX and SEA are basically bad data these days. Or at least not historically representative thanks to extensive land use changes. 1 Quote Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 Bellingham and Seattle WFO had average lows 1-2 degrees cooler than SEA. Olympia had an average low of 39. The same situation was true down here with all surrounding stations having average lows 2-4 degrees cooler than PDX’s. Might as well just make peace with the fact that lows at PDX and SEA are basically bad data these days. Or at least not historically representative thanks to extensive land use changes. Overall departures... SEA +1.0 WFO SEA +0.1 OLM +0.4 BLI +0.9 HQM +1.6 UIL +0.8 I think you overstating the case a little bit. The average of the other stations combined is +0.8 and SEA was +1.0 That looks fairly representative to me. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 Lots and lots of rain. 3rd wettest April ever. And yet, looking closer one finds that the vast majority of the rain fell on just 12 days last month. 5.69" for the month...but those 18 other days only had .10" total precip. Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 Leave it to Tim to go on about the rain on an evening like this... 2 Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 Leave it to Tim to go on about the rain on an evening like this... Screenshot_1.png Seriously? We were talking about the temperature departures... and the rain definitely affected the highs and the lows. Clearing has been very slow today... the I-5 corridor is mostly clear now. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
GHweatherChris Posted May 2, 2018 Report Share Posted May 2, 2018 Leave it to Tim to go on about the rain on an evening like this... Screenshot_1.pngAhh, I see what you did there, wait until that cam shows sunny weather to post it, just like Tim does... well played sir!! 1 Quote Link to comment Share on other sites More sharing options...
Phil Posted May 2, 2018 Report Share Posted May 2, 2018 Leave it to Tim to go on about the rain on an evening like this... Screenshot_1.pngWow. Quote Live Weather Cam: https://www.youtube.com/live/KxlIo8-KVpc?si=xKLCFYWbZieAfyh6 PWS Wunderground https://www.wunderground.com/dashboard/pws/KMDBETHE62 PWS CWOP/NOAA: https://www.weather.gov/wrh/timeseries?site=F3819&hours=72 Link to comment Share on other sites More sharing options...
Jesse Posted May 2, 2018 Report Share Posted May 2, 2018 Overall departures... SEA +1.0 WFO SEA +0.1 OLM +0.4 BLI +0.9 HQM +1.6 UIL +0.8 I think you overstating the case a little bit. The average of the other stations combined is +0.8 and SEA was +1.0 That looks fairly representative to me.I was being a little hyperbolic. Departure from average lows would probably be more representative of my point, though. Quote Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 I was being a little hyperbolic. Departure from average lows would probably be more representative of my point, though.So then highs must have gone the other way? With SEA being colder compared to their normal... because the overall departure was right on par with the other stations in the region. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
jcmcgaffey Posted May 2, 2018 Report Share Posted May 2, 2018 So then highs must have gone the other way? With SEA being colder compared to their normal... because the overall departure was right on par with the other stations in the region.SEA lows are affected more than the rest of the day. The further below 72 the temp is the more it is affected by UHI. Quote Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 SEA lows are affected more than the rest of the day. The further below 72 the temp is the more it is affected by UHI. Not sure about that... but my point was purely mathematical. The overall departure at SEA was right in line with the other stations in the region. So if the lows had a larger positive departure than the other stations... logically then the highs must have had a larger negative departure to balance it out because it ended up with the same overall departure as the other stations. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
jcmcgaffey Posted May 2, 2018 Report Share Posted May 2, 2018 This was really interesting. 1.8-5.4 degrees from UHI. Too bad for Tim, areas downwind of the city get more rain... https://en.m.wikipedia.org/wiki/Urban_heat_island 1 Quote Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 This was really interesting. 1.8-5.4 degrees from UHI. Too bad for Tim, areas downwind of the city get more rain... https://en.m.wikipedia.org/wiki/Urban_heat_island The wind is almost never from the west here. During rain events its usually from the south or southwest (and many times the southeast). We are actually downwind from miles of forest and Mt. Rainier. Everett and Monroe are more downwind from Seattle than here. The mountains do just fine producing more rain here anyways. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
El Nina Posted May 2, 2018 Report Share Posted May 2, 2018 Not sure about that... but my point was purely mathematical. The overall departure at SEA was right in line with the other stations in the region. So if the lows had a larger positive departure than the other stations... logically then the highs must have had a larger negative departure to balance it out because it ended up with the same overall departure as the other stations.I have noticed UHI comes into play much more when it's dry. Like when we get frosts here in the spring, it can be nearly 10 degrees warmer in Portland while when it rains there is hardly a difference. Quote Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 I have noticed UHI comes into play much more when it's dry. Like when we get frosts here in the spring, it can be nearly 10 degrees warmer in Portland while when it rains there is hardly a difference.I have noticed the same thing. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
jcmcgaffey Posted May 2, 2018 Report Share Posted May 2, 2018 The wind is almost never from the west here. During rain events its usually from the south or southwest (and many times the southeast). We are actually downwind from miles of forest and Mt. Rainier. Everett and Monroe are more downwind from Seattle than here. The mountains do just fine producing more rain here anyways. ya areas north east of seattle would be much more affected (if there is even much of an affect in reality). I doubt you are generally in the rain shadow of Rainier though. I could see sometimes you might be but that would be rare. Quote Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 ya areas north east of seattle would be much more affected (if there is even much of an affect in reality). I doubt you are generally in the rain shadow of Rainier though. I could see sometimes you might be but that would be rare. Not too often... I think its too narrow to really produce a traditional rain shadow anyways. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
jcmcgaffey Posted May 2, 2018 Report Share Posted May 2, 2018 I have noticed the same thing.. I have noticed that too. I really do think it happens much more within certain temperature ranges. Especially with lower temperatures. It is somewhat simple math. Typical UHI adds heat to the surrounding atmosphere. The general heat added is around 75-85deg so the colder the temperature the bigger increase in added temp. The closer to 75-85 the less UHI will affect. Quote Link to comment Share on other sites More sharing options...
Deweydog Posted May 2, 2018 Report Share Posted May 2, 2018 Meanwhile... Tomorrow looks nice. Quote My preferences can beat up your preferences’ dad. Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 Meanwhile... Tomorrow looks nice.Sideways rain and 45 degrees? I did not see that in the models. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
Deweydog Posted May 2, 2018 Report Share Posted May 2, 2018 Sideways rain and 45 degrees? I did not see that in the models.Milk just came out of my nose! And I'm not drinking milk!!! Quote My preferences can beat up your preferences’ dad. Link to comment Share on other sites More sharing options...
TT-SEA Posted May 2, 2018 Report Share Posted May 2, 2018 Milk just came out of my nose! And I'm not drinking milk!!! Might want to see a doctor about that. Quote **REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED** Link to comment Share on other sites More sharing options...
Jesse Posted May 2, 2018 Report Share Posted May 2, 2018 Sideways rain and 45 degrees? I did not see that in the models.It’s amazing how edgy you can be even when the weather is cooperating for you. Quote Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 So then highs must have gone the other way? With SEA being colder compared to their normal... because the overall departure was right on par with the other stations in the region. It's been proven repeatedly that SEA runs warmer anomalies than most other stations during the warm season. Not as much during the cool season. April is when it usually just starts to become more noticeable. Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 It’s amazing how edgy you can be even when the weather is cooperating for you. 2014-17. Nuff said. He will stop being edgy when that is balanced out!! Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
MossMan Posted May 2, 2018 Report Share Posted May 2, 2018 Some edgy conversations tonight! Quote Elevation 580’ Location a few miles east of I-5 on the Snohomish Co side of the Snohomish/Skagit border. I love snow/cold AND sun/warmth! Link to comment Share on other sites More sharing options...
Deweydog Posted May 2, 2018 Report Share Posted May 2, 2018 I saw an edgy to the clouds to the west just before sunset. Quote My preferences can beat up your preferences’ dad. Link to comment Share on other sites More sharing options...
Jesse Posted May 2, 2018 Report Share Posted May 2, 2018 I saw an edgy to the clouds to the west just before sunset.That was pretty! Quote Link to comment Share on other sites More sharing options...
Jesse Posted May 2, 2018 Report Share Posted May 2, 2018 Some edgy conversations tonight! 1 Quote Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 With a little cropping, that pic would look a lot more extreme. Not as extreme as the opinions on this forum, though. Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 0z GFS has one hell of a GOA trough at day 10. Heading straight for Mossman's new place. 1 Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
ShawniganLake Posted May 2, 2018 Report Share Posted May 2, 2018 0z GFS has one hell of a GOA trough at day 10. Heading straight for Mossman's new place.I didn’t know you looked that far ahead in the models. Nice day today. Quote Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 I didn’t know you looked that far ahead in the models. Day 10. Right on the edge of the resolution change. Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
MossMan Posted May 2, 2018 Report Share Posted May 2, 2018 0z GFS has one hell of a GOA trough at day 10. Heading straight for Mossman's new place.I’m just thankful that it’s looking dry and pleasant for this weekends moving in festivities! 2 Quote Elevation 580’ Location a few miles east of I-5 on the Snohomish Co side of the Snohomish/Skagit border. I love snow/cold AND sun/warmth! Link to comment Share on other sites More sharing options...
jcmcgaffey Posted May 2, 2018 Report Share Posted May 2, 2018 It's been proven repeatedly that SEA runs warmer anomalies than most other stations during the warm season. Not as much during the cool season. April is when it usually just starts to become more noticeable.. Really? Do you know what the reason is for that? Again it seems like it would have a larger effect on the colder temperatures. Quote Link to comment Share on other sites More sharing options...
Geos Posted May 2, 2018 Report Share Posted May 2, 2018 End of the day turned out pretty nice. Reached 63 about dinner time. Quote Mercer Island, 350 ft 2021-2022: 11.6", 02/21 2020-2021: 15.6" 2019-2020: ~10" 2018-2019 winter snowfall total: 29.5" 2017-2018: 9.0", 2016-2017: 14.0" Link to comment Share on other sites More sharing options...
Front Ranger Posted May 2, 2018 Report Share Posted May 2, 2018 . Really? Do you know what the reason is for that? Again it seems like it would have a larger effect on the colder temperatures.Days with sunshine and a N/NW wind tend maximize the warmth from land changes around the airport. That's the guess, at least. Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
Phil Posted May 2, 2018 Report Share Posted May 2, 2018 Sideways rain and 45 degrees? I did not see that in the models.Summer weather doesn’t get better than that. Quote Live Weather Cam: https://www.youtube.com/live/KxlIo8-KVpc?si=xKLCFYWbZieAfyh6 PWS Wunderground https://www.wunderground.com/dashboard/pws/KMDBETHE62 PWS CWOP/NOAA: https://www.weather.gov/wrh/timeseries?site=F3819&hours=72 Link to comment Share on other sites More sharing options...
Phil Posted May 2, 2018 Report Share Posted May 2, 2018 0z GFS has one hell of a GOA trough at day 10. Heading straight for Mossman's new place.That’s a terrifying pattern. Please no. Quote Live Weather Cam: https://www.youtube.com/live/KxlIo8-KVpc?si=xKLCFYWbZieAfyh6 PWS Wunderground https://www.wunderground.com/dashboard/pws/KMDBETHE62 PWS CWOP/NOAA: https://www.weather.gov/wrh/timeseries?site=F3819&hours=72 Link to comment Share on other sites More sharing options...
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