Eskimo Joe Posted March 20, 2015 Share Posted March 20, 2015 Nice photos Foxx, are they from MU? Grass is starting to show through the snow and the temperature has risen to 36. Link to comment Share on other sites More sharing options...
das Posted March 20, 2015 Share Posted March 20, 2015 Temp is back up to freezing at 32.0F here in Clarksburg. Storm total was 2.7". Nice late March storm. Link to comment Share on other sites More sharing options...
Ian Posted March 20, 2015 Share Posted March 20, 2015 Dropped to 36 at DCA and 33 at IAD. Didn't help much, but LAMP was high. 0.48" precip. Pretty healthy. Regular MOS wasn't bad.. Had 36 and 38 at the time forget which was which. Figured LAMP was high just my role plus as Matt noted the writing was on the wall for the city at midnight. Link to comment Share on other sites More sharing options...
CAPE Posted March 20, 2015 Share Posted March 20, 2015 34 and rain here. Been getting pretty steady rain all afternoon. Not much left of my 1.2" of snow from this morning. Link to comment Share on other sites More sharing options...
WVclimo Posted March 20, 2015 Share Posted March 20, 2015 0.77" liquid, all frozen. Afternoon high of 35.4. Link to comment Share on other sites More sharing options...
Fozz Posted March 20, 2015 Share Posted March 20, 2015 Nice photos Foxx, are they from MU? Grass is starting to show through the snow and the temperature has risen to 36. Thanks! the pics are from home Link to comment Share on other sites More sharing options...
HighStakes Posted March 20, 2015 Share Posted March 20, 2015 Not much melting at all today. Link to comment Share on other sites More sharing options...
CAPE Posted March 20, 2015 Share Posted March 20, 2015 Not much melting at all today. Lucky you. Tomorrow will take care of it Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted March 20, 2015 Share Posted March 20, 2015 Caught some of that action on the drive into work. This was in Glen Echo. trim.C1020B09-DCAA-4F31-B86B-CF031E83A313.MOV Yeah, that accounted for like everything we got. Already melting a lot.. Link to comment Share on other sites More sharing options...
Inverted_Trough Posted March 20, 2015 Share Posted March 20, 2015 The High was not in an ideal position, but the air was pretty dry. Probably mostly evap cooling. Dynamic cooling is a bit misunderstood, its not simply cold air aloft coming down to the surface with the heavy precip. One of the processes involved there is the snow melting as it falls into "warmer air", thus removing heat. In this case I think it was more evap cooling with the low dew points. Dynamic cooling gets talked up a lot, but evap cooling is more efficient. thanks for the explanation! Pure evaporational cooling should cool temps down to the wet bulb temperature (assuming no change in airmass), but in this case the wet bulb temperatures fell a few degrees after the precip started, which seems to indicate some cold air seepage from somewhere. With a southeast wind, I'm curious as to where the colder air (in terms of wet bulb) came from Link to comment Share on other sites More sharing options...
Fozz Posted March 20, 2015 Share Posted March 20, 2015 Not much melting at all today. Not much melting here either... the trees are still plastered and everything is still covered. I wouldn't be surprised if it still looks like this even tomorrow morning. Link to comment Share on other sites More sharing options...
CAPE Posted March 20, 2015 Share Posted March 20, 2015 thanks for the explanation! Pure evaporational cooling should cool temps down to the wet bulb temperature (assuming no change in airmass), but in this case the wet bulb temperatures fell a few degrees after the precip started, which seems to indicate some cold air seepage from somewhere. With a southeast wind, I'm curious as to where the colder air (in terms of wet bulb) came from Dunno. Based on my temp, DP, and pressure, the wet bulb should have been 32 or a tad higher, and that is exactly what the temp was once the snow began falling in earnest. But perhaps there could also have been some column cooling due to dynamic processes, as the column was cold. Link to comment Share on other sites More sharing options...
T. August Posted March 20, 2015 Share Posted March 20, 2015 Total is 2.0". 35F now. Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted March 20, 2015 Share Posted March 20, 2015 Drip Drip Drip, 35.3/33.. Link to comment Share on other sites More sharing options...
CAPE Posted March 20, 2015 Share Posted March 20, 2015 Drip Drip Drip, 35.3/33.. Whats with the drip drip drip? No suspense here. If there is any snow left by morning, its gone by noon. Link to comment Share on other sites More sharing options...
hosj III Posted March 20, 2015 Share Posted March 20, 2015 I was in school so could not measure when snow was at its peak around noonish. I'd guess between 1-1.5". Maybe 1.25"? What did Gymengineer and the emu guy report? Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted March 20, 2015 Share Posted March 20, 2015 Whats with the drip drip drip? No suspense here. If there is any snow left by morning, its gone by noon. Just an ob..pretty much what it sounds like outside. Puddles galore. Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted March 20, 2015 Share Posted March 20, 2015 I was in school so could not measure when snow was at its peak around noonish. I'd guess between 1-1.5". Maybe 1.25"? What did Gymengineer and the emu guy report? A got ~3/4", most of it has melted now. Link to comment Share on other sites More sharing options...
jnis Posted March 20, 2015 Share Posted March 20, 2015 Temp is back up to freezing at 32.0F here in Clarksburg. Storm total was 2.7". Nice late March storm. I never got a chance to measure, but that has to be close to the totals in Damascus. Link to comment Share on other sites More sharing options...
das Posted March 21, 2015 Share Posted March 21, 2015 I never got a chance to measure, but that has to be close to the totals in Damascus. Yup, the two Damascus reports I've seen are 3.0" and 2.7". Link to comment Share on other sites More sharing options...
hosj III Posted March 21, 2015 Share Posted March 21, 2015 A got ~3/4", most of it has melted now. I have 200-250 feet of elevation on you. Link to comment Share on other sites More sharing options...
hosj III Posted March 21, 2015 Share Posted March 21, 2015 Dunno. Based on my temp, DP, and pressure, the wet bulb should have been 32 or a tad higher, and that is exactly what the temp was once the snow began falling in earnest. But perhaps there could also have been some column cooling due to dynamic processes, as the column was cold. Probably a small combo of melting cooling, dynamic cooling, and precip dragging down colder air from aloft. Link to comment Share on other sites More sharing options...
clskinsfan Posted March 21, 2015 Share Posted March 21, 2015 Surprised my ground is still covered. I have been above freezing all day. But I cant complain. Was a nice late season event and it got me to 40 inches for the winter. Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted March 21, 2015 Share Posted March 21, 2015 Surprised my ground is still covered. I have been above freezing all day. But I cant complain. Was a nice late season event and it got me to 40 inches for the winter. you and I may as well be on different continents Link to comment Share on other sites More sharing options...
clskinsfan Posted March 21, 2015 Share Posted March 21, 2015 you and I may as well be on different continents This event was definitely better the further N you were. WinterWX did much better than me with this one. Where are you for the season? Link to comment Share on other sites More sharing options...
dailylurker Posted March 21, 2015 Share Posted March 21, 2015 World of difference from AFB to Crofton this morning. I drove through the rain/snow line. Did some work in the rain/sleet. Then drove back through the rain/snow line back into snow. Hardly anything down there. Soon as I got within a couple miles of Crofton. Boom, all white. Then it turned to rain shortly after. Eye balled about 2". Link to comment Share on other sites More sharing options...
jnis Posted March 21, 2015 Share Posted March 21, 2015 31 degrees here...very little melting since the snow stopped earlier. I expect the snow will disappear in a puff of steam tomorrow once the sun rises. Link to comment Share on other sites More sharing options...
jnis Posted March 21, 2015 Share Posted March 21, 2015 Yup, the two Damascus reports I've seen are 3.0" and 2.7". I'll call it 2.7" IMBY but I suspect it was closer to 3" - at least in the shaded areas. Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted March 21, 2015 Share Posted March 21, 2015 This event was definitely better the further N you were. WinterWX did much better than me with this one. Where are you for the season? I'm at 30.75". You've got 10" on me. I think last year you got me by 12". Seems like Winchester is the rubicon, if you will, of the valley winter climate. Stark contrasts just north of the city from just south of it. Link to comment Share on other sites More sharing options...
StudentOfClimatology Posted March 21, 2015 Share Posted March 21, 2015 I have 200-250 feet of elevation on you. What's your elevation? I'm at 260ft, though I'm right on the bank of the Potomac. Link to comment Share on other sites More sharing options...
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