On Tuesday, we had mostly cloudy skies, lowering and thickening all day, and colder, particularly in the evening during our light rain changing to/mixing with light snow (0.23″/0.2″ snow). After a low temp just below freezing in the early AM, the temperature rebounded into the low 40s in the early afternoon, then cooled off into the evening through much of the 30s during the rain changing to snow evening activity. The Tuesday maximum temperature from the VP2 (43.0°) was recorded at 1318 while the minimum temperature (30.6°) was recorded at 0523. Dew point temperatures started to climb during the day, ranging from a low of 22° very early at 0000 up to a high of 34° at 1945. Relative humidity values climbed significantly all day (95% – 48%). Barometric values dropped on Tuesday, particularly in the evening, ranging from a high of 30.13″ at 0001 down to a low of 29.85″ at 2344.

Remember now you can get the VP2 data on Weatherlink. You can access the data through http://www.weatherlink.com/user/walrusman444.

I am posting daily to weather underground. My ID is KMDROCKV200 and my station is called “Gardens of Traville.” Data is online, normally just about in real-time. I contribute daily to cocorahs as Rockville 2.8 WNW, Station ID MD-MG-115. Please remember that Weather Underground does not report snow data, and reflects what is recorded automatically through the tipping bucket VP2 gauge.

I worked on really finishing up my January data including final dissemination to many via email. I also did some science fair updating, sending out an update 5 to the DC-AMS membership to try and fill 3 upcoming fairs coming up fast in a few weeks. I mailed out more certificates and am down to just a few left in my inventory, and touched base with our source for the certificates to check on the status of my order or more that are coming. I should get them in time. The delay was due to AMS running out of certificates and having to have them reprinted. 

We had mostly cloudy skies on Tuesday, increasing in density and decreasing in ceiling with light winds as the afternoon morphed into the evening. I did a late morning 1100 GLOBE observation with a lowering overcast (9000 feet at the time) with the view to the north pic used as my featured image today. Temperatures rebounded into the low-mid 40s in the early afternoon after a just below freezing start in the early AM. Light rain developed in the evening, changing over to a light wet snow that only accumulated on grassy areas. Temperatures dropped through the 30s into the late evening. Overnight into Wednesday morning clouds remained but the precipitation moved off to the north and east, with temps holding steady above the freezing mark. During the day on Wednesday it will once again be cloudy with only a 30 POP for AM showers with highs in the mid 40s and lows in the upper 20s. Mostly sunny and cold on Thursday, with highs in the low 40s and lows in the upper 20s. Mostly cloudy and cold on Friday, with highs in the low 40s and lows in the mid 20s. Sunny and a bit milder on Saturday, with highs in the upper 40s and lows in the mid 20s. Sunday looks to have clouds returning, highs in the low 40s and lows in the mid-upper 20s and a 50 POP for PM showers.

On the Channel 4 weather website at 0832 radar is showing the snow has moved off to the N and E over NE Maryland, northern DE and points N and E like most of NJ and into NY and New England. Rain is still hugging the lower eastern shore of MD and VA, but moving gradually off to the E this morning.

As of 0832, the data from the VP2 (coming from the ground radiation shield about 4 feet off the ground just under and out from the balcony) and the Lakewood WXBug station are as follows:

Mostly Cloudy, still relatively cold, with dew point temps just about the same as the air temperature.

Station Relative Location Temp RH DP    BP   Wind High/Low temp Tuesday
VP2           Ground          35.3  94  34 29.73S  NA    43.0/30.6
The total rainfall in the cocorahs gauge was 0.23″ through midnight Tuesday. There was an 0.2″ accumulation of wet snow on grassy surfaces only. The VP2 tipping bucket rain gauge under my balcony only had 0.08″ through midnight Tuesday. Since midnight an additional 0.04″ of precipitation has been recorded up to this minute.

Tuesday’s precipitation was 0.23″
March precipitation is 0.43″.
Tuesday’s snowfall 0.2″
March snowfall now 0.2″
Snow on ground T (reported to the nearest half-inch)
The seasonal snowfall total is 7.7″.
Year-to-date precipitation total is 7.06″

WX Bug Lakewood 4500 ft, 34 100 34 29.71″F NNE 4 G ENE 11
                            140° from station                       42/27

The Lakewood rain gauge recorded only 0.04″ of precipitation on Tuesday. It is still reporting a total of 0.65″ of precipitation so far in March and a 2018 year-to-date (YTD) amount of 8.15″.

At 2400 obs Tuesday night the temperature from the VP2 was 33.4 RH 95% BP 29.85″F DP 32.1. Cloudy, seasonably cold, light wet snow falling, 0.2″ of snow on the ground (officially reported as a Trace) with light winds.

Good morning from the cloudy, cold, and damp (but not precipitating at the moment) home of the Walrus early on this Tuesday.