Solo2 Posted November 25, 2014 Share Posted November 25, 2014 Temps dropping into the low 40's up above 1500' in FDK now, too... Link to comment Share on other sites More sharing options...
Eskimo Joe Posted November 25, 2014 Share Posted November 25, 2014 Now down to 45/30 in Damascus. Clear skies. Link to comment Share on other sites More sharing options...
gymengineer Posted November 25, 2014 Share Posted November 25, 2014 Already a 7 F difference between IAD and DCA... Link to comment Share on other sites More sharing options...
Ian Posted November 25, 2014 Author Share Posted November 25, 2014 Down to 55 in Dupont. If that doesn't scream snow.. Link to comment Share on other sites More sharing options...
PhineasC Posted November 25, 2014 Share Posted November 25, 2014 48/30 here. Hardly torching. Link to comment Share on other sites More sharing options...
Solo2 Posted November 25, 2014 Share Posted November 25, 2014 47/31....now. Lost ~6 degrees in the past 45 mins. Link to comment Share on other sites More sharing options...
BTRWx Posted November 25, 2014 Share Posted November 25, 2014 47/31....now. Lost ~6 degrees in the past 45 mins. wow, impressive Link to comment Share on other sites More sharing options...
WhiteoutMD Posted November 25, 2014 Share Posted November 25, 2014 What app would you recommend for someone that's trying to get rain snow line on a mobile phone? I'm driving tomorrow and would like to keep tabs on the rain snowline. I have Weather Underground but is that the best one to use? Sorry for the off topic Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
snowfan Posted November 25, 2014 Share Posted November 25, 2014 Down to 50. Perfect for snow. Link to comment Share on other sites More sharing options...
BTRWx Posted November 25, 2014 Share Posted November 25, 2014 What app would you recommend for someone that's trying to get rain snow line on a mobile phone? I'm driving tomorrow and would like to keep tabs on the rain snowline. I have Weather Underground but is that the best one to use? Sorry for the off topic Sent from my iPhone I honestly like The Weather Channel's radar for precip types. Link to comment Share on other sites More sharing options...
ravensrule Posted November 25, 2014 Share Posted November 25, 2014 What app would you recommend for someone that's trying to get rain snow line on a mobile phone? I'm driving tomorrow and would like to keep tabs on the rain snowline. I have Weather Underground but is that the best one to use? Sorry for the off topic Sent from my iPhone Radarscope but it is 10 bucks. Link to comment Share on other sites More sharing options...
T. August Posted November 25, 2014 Share Posted November 25, 2014 49F now, but for some reason the DP went up to 40F. Pretty much every night after sunset the DP goes up. Can someone tell me why that is? Link to comment Share on other sites More sharing options...
ThePhotoGuy Posted November 25, 2014 Share Posted November 25, 2014 It feel likes snow outside! 49.8 degrees Link to comment Share on other sites More sharing options...
wxmeddler Posted November 25, 2014 Share Posted November 25, 2014 What app would you recommend for someone that's trying to get rain snow line on a mobile phone? I'm driving tomorrow and would like to keep tabs on the rain snowline. I have Weather Underground but is that the best one to use? Sorry for the off topic Sent from my iPhone Intelicast from WSI is good for P-typeing. Of course, Radarscope is the only radar app you'll ever need, but it's a $10 one time purchase. Link to comment Share on other sites More sharing options...
mappy Posted November 25, 2014 Share Posted November 25, 2014 44/31 Link to comment Share on other sites More sharing options...
Ltrain Posted November 25, 2014 Share Posted November 25, 2014 47/34 Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted November 25, 2014 Share Posted November 25, 2014 Radiating pretty well all things considered..49/33 Link to comment Share on other sites More sharing options...
Solo2 Posted November 25, 2014 Share Posted November 25, 2014 45.4/31 Link to comment Share on other sites More sharing options...
vitaminmawc Posted November 25, 2014 Share Posted November 25, 2014 46/35. 4 degrees colder than I should be at 6pm. Will make the rain that much colder!! Link to comment Share on other sites More sharing options...
BTRWx Posted November 25, 2014 Share Posted November 25, 2014 49F now, but for some reason the DP went up to 40F. Pretty much every night after sunset the DP goes up. Can someone tell me why that is? I would say it's more of a coincidence considering conditions. As far as tonight goes, with the Low approaching the area your local temperature and dewpoint will approach an equilibrium value when the atmosphere becomes fully saturated. (Dewpoints will rise while temperatures tend to fall) Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted November 25, 2014 Share Posted November 25, 2014 I would say it's more of a coincidence considering conditions. Light S/E winds in some of the obs there..probably bay-induced.. Link to comment Share on other sites More sharing options...
BTRWx Posted November 25, 2014 Share Posted November 25, 2014 Light S/E winds in some of the obs there..probably bay-induced.. Eventually one would expect that trend to happen for everyone, but maybe that bay effect you are referring to would imply the coastal areas to see the dp rise first? Link to comment Share on other sites More sharing options...
RDM Posted November 25, 2014 Share Posted November 25, 2014 47/35 here just NW of Vienna. If only we could apply the "wish" factor, we'd probably be near 0F now... still holding hope for tomorrow no matter how ill fated that may be. Link to comment Share on other sites More sharing options...
NCWX Posted November 25, 2014 Share Posted November 25, 2014 39/32 East winds 3-5mph Link to comment Share on other sites More sharing options...
EasternUSWX Posted November 25, 2014 Share Posted November 25, 2014 Radar looking pretty juicy down there. Link to comment Share on other sites More sharing options...
BTRWx Posted November 25, 2014 Share Posted November 25, 2014 Radar looking pretty juicy down there. Especially considering what may be offshore still Link to comment Share on other sites More sharing options...
nw baltimore wx Posted November 25, 2014 Share Posted November 25, 2014 49F now, but for some reason the DP went up to 40F. Pretty much every night after sunset the DP goes up. Can someone tell me why that is? I'm no expert but isn't dew point a function of temperature and relative humidity? Cooler air doesn't hold as much water so at sunset, when there is a sudden drop in temperature, wouldn't that cause dew points to rise? I don't think it's a coincidence. I think it's science. But again, I'm no expert. Link to comment Share on other sites More sharing options...
BTRWx Posted November 25, 2014 Share Posted November 25, 2014 I'm no expert but isn't dew point a function of temperature and relative humidity? Cooler air doesn't hold as much water so at sunset, when there is a sudden drop in temperature, wouldn't that cause dew points to rise? I don't think it's a coincidence. I think it's science. But again, I'm no expert. Good points, though I don't see why the temperature and dewpoint can't drop simultaneously at sunset under clear skies. Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted November 25, 2014 Share Posted November 25, 2014 I'm no expert but isn't dew point a function of temperature and relative humidity? Cooler air doesn't hold as much water so at sunset, when there is a sudden drop in temperature, wouldn't that cause dew points to rise? I don't think it's a coincidence. I think it's science. But again, I'm no expert. No. The dewpoint is roughly analogous to specific humidity..when temps cool, the dewpoint drops, from a macroscale standpoint. The spikes in the evening dewpoint are due to reduced mixing as we lose insolation, hence less dry air is advected from aloft. Link to comment Share on other sites More sharing options...
nw baltimore wx Posted November 25, 2014 Share Posted November 25, 2014 No. The dewpoint is roughly analogous to specific humidity..when temps cool, the dewpoint drops on the macroscale. The spikes in the evening dewpoint are due to reduced mixing after the loss of insolation..hence less dry air advected from aloft.. Ah, thank you. I'll have to re-read fifty times and hit wikipedia, but thanks. Link to comment Share on other sites More sharing options...
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