Tuesday got off to a cloudy, cool start, gradually turning colder all day with some clearing at times all day. Temperatures started out in the lower-mid 40s at midnight, then gradually lowered most of the day down to the freezing mark 24 hours later at the end of the observation day. 

The maximum temperature was 43.2° at 0000.

The minimum temperature was 32.6° at 2345.

Dew point temperatures ranged from a high of 35° @ 0000 down to a low of 24° @ 2355.

Relative humidity values ranged from a high of 77% @ 0109 down to a low of 56% @ 1524.

Barometric pressure ranged from a low of 29.88″ @ 0101 up to a high of 30.12″ @ 2220.

No rain or snow fell on Tuesday. December 2018 still has a total of 0.44″ of rain. The year-to-date precipitation is still 59.25″.

You can get my VP2 data on Weatherlink. I have migrated over to Weatherlink 2.0 so I have a new link for my data. You can now access the data through:

https://www.weatherlink.com/map/5aa32916-94c7-4a40-a2d0-0b74abfc8d8f

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. The web address for my data on weather underground is: https://www.wunderground.com/personal-weather-station/dashboard?ID=KMDROCKV200

I contribute daily to CoCoRaHS as Rockville 2.8 WNW, Station ID MD-MG-115 on https://www.cocorahs.org/

Please remember that Weather Underground precipitation data reflects what is recorded automatically through the tipping bucket VP2 gauge. And the tipping bucket is producing significantly higher values than my 4 inch gauge. I actually use the data I post to CoCoRaHS from my 4 inch CoCoRaHS gauge I read manually as my “official” precipitation total each day.

Wednesday will be cloudy and a bit colder, with highs in the upper 30s and lows in the mid 20s. There’s a chance for some snow flurries that won’t be measurable hence the POP is 0% of measurable precipitation. The mountains out to my W stand a better chance for a bit of measurable snow in favorable locations.

Thursday should be partly cloudy with highs around 40° and lows in the upper 20s.

Friday should be sunny and a bit colder, with highs in the upper 30s and lows in the low 20s.

Saturday should be partly cloudy and a bit colder, with highs in the mid 30s and lows in the mid 20s.

Sunday looks to turn cloudy and colder, with a 40 POP for PM snow showers, highs around the freezing mark and lows in the upper 20s. Stay tuned for updates on this ever-changing snow possibility during Sunday and Monday. 

Tuesday’s midnight observations included a temperature of 32.6°, relative humidity 70%, barometric pressure 30.11″ and steady, and a dew point of 24.0° under partly cloudy skies.

Currently at 0545 the temperature is 31.4°, dew point temperature 22°, relative humidity 68%, and barometric pressure at 30.10″ and steady under partly cloudy skies. During the overnight, temperatures dropped off little with partly cloudy skies. 

Good morning from the Walrus on this Wednesday.